diff --git a/src/.gradle/5.4.1/executionHistory/executionHistory.bin b/src/.gradle/5.4.1/executionHistory/executionHistory.bin
index 4abe340..c76c7f6 100644
Binary files a/src/.gradle/5.4.1/executionHistory/executionHistory.bin and b/src/.gradle/5.4.1/executionHistory/executionHistory.bin differ
diff --git a/src/.gradle/5.4.1/executionHistory/executionHistory.lock b/src/.gradle/5.4.1/executionHistory/executionHistory.lock
index 24e9509..ac87ad4 100644
Binary files a/src/.gradle/5.4.1/executionHistory/executionHistory.lock and b/src/.gradle/5.4.1/executionHistory/executionHistory.lock differ
diff --git a/src/.gradle/5.4.1/fileHashes/fileHashes.bin b/src/.gradle/5.4.1/fileHashes/fileHashes.bin
index 0968d75..bf01019 100644
Binary files a/src/.gradle/5.4.1/fileHashes/fileHashes.bin and b/src/.gradle/5.4.1/fileHashes/fileHashes.bin differ
diff --git a/src/.gradle/5.4.1/fileHashes/fileHashes.lock b/src/.gradle/5.4.1/fileHashes/fileHashes.lock
index 545a808..1c65b0e 100644
Binary files a/src/.gradle/5.4.1/fileHashes/fileHashes.lock and b/src/.gradle/5.4.1/fileHashes/fileHashes.lock differ
diff --git a/src/.gradle/buildOutputCleanup/buildOutputCleanup.lock b/src/.gradle/buildOutputCleanup/buildOutputCleanup.lock
index 9e3a944..6ef5283 100644
Binary files a/src/.gradle/buildOutputCleanup/buildOutputCleanup.lock and b/src/.gradle/buildOutputCleanup/buildOutputCleanup.lock differ
diff --git a/src/.gradle/buildOutputCleanup/outputFiles.bin b/src/.gradle/buildOutputCleanup/outputFiles.bin
index 0aaab5e..bb41783 100644
Binary files a/src/.gradle/buildOutputCleanup/outputFiles.bin and b/src/.gradle/buildOutputCleanup/outputFiles.bin differ
diff --git a/src/.idea/caches/build_file_checksums.ser b/src/.idea/caches/build_file_checksums.ser
index 546480a..aebe61d 100644
Binary files a/src/.idea/caches/build_file_checksums.ser and b/src/.idea/caches/build_file_checksums.ser differ
diff --git a/src/.idea/caches/gradle_models.ser b/src/.idea/caches/gradle_models.ser
index 1b24cfa..7e452f8 100644
Binary files a/src/.idea/caches/gradle_models.ser and b/src/.idea/caches/gradle_models.ser differ
diff --git a/src/.idea/libraries/Gradle__org_apache_http_legacy_android_23.xml b/src/.idea/libraries/Gradle__org_apache_http_legacy_android_23.xml
new file mode 100644
index 0000000..a243f51
--- /dev/null
+++ b/src/.idea/libraries/Gradle__org_apache_http_legacy_android_23.xml
@@ -0,0 +1,9 @@
+<component name="libraryTable">
+  <library name="Gradle: org.apache.http.legacy-android-23">
+    <CLASSES>
+      <root url="jar://D:/Android_SDK/SDK/platforms/android-23/optional/org.apache.http.legacy.jar!/" />
+    </CLASSES>
+    <JAVADOC />
+    <SOURCES />
+  </library>
+</component>
\ No newline at end of file
diff --git a/src/.idea/workspace.xml b/src/.idea/workspace.xml
index 11b2b8a..ee65f3d 100644
--- a/src/.idea/workspace.xml
+++ b/src/.idea/workspace.xml
@@ -7,8 +7,27 @@
   </component>
   <component name="ChangeListManager">
     <list default="true" id="c8515555-ebbc-49d5-889b-0c59bd6c3b6d" name="默认更改列表" comment="comment">
+      <change afterPath="$PROJECT_DIR$/.idea/libraries/Gradle__org_apache_http_legacy_android_23.xml" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/.gradle/5.4.1/executionHistory/executionHistory.bin" beforeDir="false" afterPath="$PROJECT_DIR$/.gradle/5.4.1/executionHistory/executionHistory.bin" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/.gradle/5.4.1/executionHistory/executionHistory.lock" beforeDir="false" afterPath="$PROJECT_DIR$/.gradle/5.4.1/executionHistory/executionHistory.lock" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/.gradle/5.4.1/fileHashes/fileHashes.bin" beforeDir="false" afterPath="$PROJECT_DIR$/.gradle/5.4.1/fileHashes/fileHashes.bin" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/.gradle/5.4.1/fileHashes/fileHashes.lock" beforeDir="false" afterPath="$PROJECT_DIR$/.gradle/5.4.1/fileHashes/fileHashes.lock" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/.gradle/buildOutputCleanup/buildOutputCleanup.lock" beforeDir="false" afterPath="$PROJECT_DIR$/.gradle/buildOutputCleanup/buildOutputCleanup.lock" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/.gradle/buildOutputCleanup/outputFiles.bin" beforeDir="false" afterPath="$PROJECT_DIR$/.gradle/buildOutputCleanup/outputFiles.bin" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/.idea/caches/build_file_checksums.ser" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/caches/build_file_checksums.ser" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/.idea/caches/gradle_models.ser" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/caches/gradle_models.ser" afterDir="false" />
       <change beforePath="$PROJECT_DIR$/.idea/workspace.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/workspace.xml" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/app/src/main/java/net/micode/notes/ui/NotesListActivity.java" beforeDir="false" afterPath="$PROJECT_DIR$/app/src/main/java/net/micode/notes/ui/NotesListActivity.java" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/app/app.iml" beforeDir="false" afterPath="$PROJECT_DIR$/app/app.iml" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/app/build.gradle" beforeDir="false" afterPath="$PROJECT_DIR$/app/build.gradle" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/app/build/generated/source/buildConfig/androidTest/debug/net/micode/notes/test/BuildConfig.java" beforeDir="false" afterPath="$PROJECT_DIR$/app/build/generated/source/buildConfig/androidTest/debug/net/micode/notes/test/BuildConfig.java" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/app/build/intermediates/bundle_manifest/debug/processDebugManifest/bundle-manifest/AndroidManifest.xml" beforeDir="false" afterPath="$PROJECT_DIR$/app/build/intermediates/bundle_manifest/debug/processDebugManifest/bundle-manifest/AndroidManifest.xml" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/app/build/intermediates/instant_app_manifest/debug/AndroidManifest.xml" beforeDir="false" afterPath="$PROJECT_DIR$/app/build/intermediates/instant_app_manifest/debug/AndroidManifest.xml" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/app/build/intermediates/manifest_merge_blame_file/debug/manifest-merger-blame-debug-report.txt" beforeDir="false" afterPath="$PROJECT_DIR$/app/build/intermediates/manifest_merge_blame_file/debug/manifest-merger-blame-debug-report.txt" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/app/build/intermediates/merged_manifests/debug/AndroidManifest.xml" beforeDir="false" afterPath="$PROJECT_DIR$/app/build/intermediates/merged_manifests/debug/AndroidManifest.xml" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/app/build/intermediates/merged_manifests/debugAndroidTest/AndroidManifest.xml" beforeDir="false" afterPath="$PROJECT_DIR$/app/build/intermediates/merged_manifests/debugAndroidTest/AndroidManifest.xml" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/app/build/outputs/logs/manifest-merger-debug-report.txt" beforeDir="false" afterPath="$PROJECT_DIR$/app/build/outputs/logs/manifest-merger-debug-report.txt" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/app/src/main/java/net/micode/notes/data/NotesDatabaseHelper.java" beforeDir="false" afterPath="$PROJECT_DIR$/app/src/main/java/net/micode/notes/data/NotesDatabaseHelper.java" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/app/src/main/java/net/micode/notes/ui/NoteEditActivity.java" beforeDir="false" afterPath="$PROJECT_DIR$/app/src/main/java/net/micode/notes/ui/NoteEditActivity.java" afterDir="false" />
     </list>
     <option name="EXCLUDED_CONVERTED_TO_IGNORED" value="true" />
     <option name="SHOW_DIALOG" value="false" />
@@ -42,34 +61,10 @@
   </component>
   <component name="FileEditorManager">
     <leaf SIDE_TABS_SIZE_LIMIT_KEY="300">
-      <file pinned="false" current-in-tab="true">
-        <entry file="file://$PROJECT_DIR$/app/src/main/java/net/micode/notes/ui/NotesListActivity.java">
-          <provider selected="true" editor-type-id="text-editor">
-            <state relative-caret-position="335">
-              <caret line="1115" column="9" lean-forward="true" selection-start-line="1115" selection-start-column="9" selection-end-line="1115" selection-end-column="9" />
-              <folding>
-                <element signature="e#10700#10767#0" expanded="true" />
-                <element signature="e#11187#11211#0" expanded="true" />
-                <element signature="e#12282#12318#0" expanded="true" />
-                <element signature="e#23149#23181#0" expanded="true" />
-                <element signature="e#24580#24623#0" expanded="true" />
-                <element signature="e#24827#24870#0" expanded="true" />
-                <element signature="e#25005#25176#0" expanded="true" />
-                <element signature="e#25175#25176#0" expanded="true" />
-                <element signature="e#25359#26888#0" expanded="true" />
-                <element signature="e#26887#26888#0" expanded="true" />
-                <element signature="e#29304#29828#0" expanded="true" />
-                <element signature="e#29827#29828#0" expanded="true" />
-                <element signature="e#32663#32692#0" expanded="true" />
-              </folding>
-            </state>
-          </provider>
-        </entry>
-      </file>
       <file pinned="false" current-in-tab="false">
         <entry file="file://$PROJECT_DIR$/app/src/main/res/values-zh-rCN/strings.xml">
           <provider selected="true" editor-type-id="text-editor">
-            <state relative-caret-position="149">
+            <state relative-caret-position="-1202">
               <caret line="40" column="18" selection-start-line="40" selection-start-column="18" selection-end-line="40" selection-end-column="18" />
             </state>
           </provider>
@@ -78,8 +73,20 @@
       <file pinned="false" current-in-tab="false">
         <entry file="file://$PROJECT_DIR$/app/src/main/java/net/micode/notes/ui/NoteEditActivity.java">
           <provider selected="true" editor-type-id="text-editor">
-            <state relative-caret-position="-4254">
-              <caret line="175" column="51" selection-start-line="175" selection-start-column="51" selection-end-line="175" selection-end-column="51" />
+            <state relative-caret-position="59">
+              <caret line="81" column="24" selection-start-line="81" selection-start-column="24" selection-end-line="81" selection-end-column="24" />
+            </state>
+          </provider>
+        </entry>
+      </file>
+      <file pinned="false" current-in-tab="true">
+        <entry file="file://$PROJECT_DIR$/app/src/main/java/net/micode/notes/data/NotesProvider.java">
+          <provider selected="true" editor-type-id="text-editor">
+            <state relative-caret-position="183">
+              <caret line="101" column="17" lean-forward="true" selection-start-line="101" selection-start-column="17" selection-end-line="101" selection-end-column="17" />
+              <folding>
+                <element signature="imports" expanded="true" />
+              </folding>
             </state>
           </provider>
         </entry>
@@ -87,8 +94,8 @@
       <file pinned="false" current-in-tab="false">
         <entry file="file://$PROJECT_DIR$/app/src/main/java/net/micode/notes/data/NotesDatabaseHelper.java">
           <provider selected="true" editor-type-id="text-editor">
-            <state relative-caret-position="-145">
-              <caret line="69" column="25" lean-forward="true" selection-start-line="69" selection-start-column="25" selection-end-line="69" selection-end-column="25" />
+            <state relative-caret-position="20">
+              <caret line="338" selection-start-line="338" selection-end-line="338" />
             </state>
           </provider>
         </entry>
@@ -97,7 +104,7 @@
         <entry file="file://$PROJECT_DIR$/app/src/main/java/net/micode/notes/data/Notes.java">
           <provider selected="true" editor-type-id="text-editor">
             <state relative-caret-position="158">
-              <caret line="23" column="28" selection-start-line="23" selection-start-column="28" selection-end-line="23" selection-end-column="28" />
+              <caret line="48" column="39" lean-forward="true" selection-start-line="48" selection-start-column="39" selection-end-line="48" selection-end-column="39" />
               <folding>
                 <element signature="e#0#9163#0" expanded="true" />
                 <element signature="class#TextNote#0;class#Notes#0" />
@@ -111,7 +118,7 @@
         <entry file="file://$PROJECT_DIR$/app/src/main/java/net/micode/notes/model/Note.java">
           <provider selected="true" editor-type-id="text-editor">
             <state relative-caret-position="280">
-              <caret line="44" column="7" lean-forward="true" selection-start-line="44" selection-start-column="7" selection-end-line="44" selection-end-column="7" />
+              <caret line="44" column="7" selection-start-line="44" selection-start-column="7" selection-end-line="44" selection-end-column="7" />
               <folding>
                 <element signature="method#getNewNoteId#0;class#Note#0" />
                 <element signature="method#Note#0;class#Note#0" />
@@ -157,6 +164,8 @@
       <find>finish</find>
       <find>//</find>
       <find>/*</find>
+      <find>getread</find>
+      <find>mHelper</find>
     </findStrings>
     <replaceStrings>
       <replace>WRONGNOTEID</replace>
@@ -189,8 +198,6 @@
         <option value="$PROJECT_DIR$/app/src/main/java/net/micode/notes/widget/NoteWidgetProvider.java" />
         <option value="$PROJECT_DIR$/app/src/main/java/net/micode/notes/data/Contact.java" />
         <option value="$PROJECT_DIR$/app/src/main/java/net/micode/notes/data/Notes.java" />
-        <option value="$PROJECT_DIR$/app/src/main/java/net/micode/notes/data/NotesDatabaseHelper.java" />
-        <option value="$PROJECT_DIR$/app/build.gradle" />
         <option value="$PROJECT_DIR$/app/src/main/res/raw-zh-rCN/introduction" />
         <option value="$PROJECT_DIR$/app/src/main/res/raw/introduction" />
         <option value="$PROJECT_DIR$/app/src/main/java/net/micode/notes/ui/NotesListAdapter.java" />
@@ -200,8 +207,10 @@
         <option value="$PROJECT_DIR$/app/src/main/java/net/micode/notes/data/NotesProvider.java" />
         <option value="$PROJECT_DIR$/app/src/main/java/net/micode/notes/model/WorkingNote.java" />
         <option value="$PROJECT_DIR$/app/src/main/java/net/micode/notes/ui/AlarmAlertActivity.java" />
-        <option value="$PROJECT_DIR$/app/src/main/java/net/micode/notes/ui/NoteEditActivity.java" />
         <option value="$PROJECT_DIR$/app/src/main/java/net/micode/notes/ui/NotesListActivity.java" />
+        <option value="$PROJECT_DIR$/app/build.gradle" />
+        <option value="$PROJECT_DIR$/app/src/main/java/net/micode/notes/ui/NoteEditActivity.java" />
+        <option value="$PROJECT_DIR$/app/src/main/java/net/micode/notes/data/NotesDatabaseHelper.java" />
       </list>
     </option>
   </component>
@@ -544,13 +553,13 @@
   </component>
   <component name="PropertiesComponent">
     <property name="ASKED_SHARE_PROJECT_CONFIGURATION_FILES" value="true" />
-    <property name="DeviceAndSnapshotComboBoxAction.selectedDevice" value="Pixel_2_API_28" />
-    <property name="DeviceAndSnapshotComboBoxAction.selectionTime" value="2019-09-24T00:13:57.999Z" />
+    <property name="DeviceAndSnapshotComboBoxAction.selectedDevice" value="Pixel_2_API_24_2" />
+    <property name="DeviceAndSnapshotComboBoxAction.selectionTime" value="2019-10-10T12:00:04.556Z" />
     <property name="SHARE_PROJECT_CONFIGURATION_FILES" value="true" />
     <property name="SONARLINT_PRECOMMIT_ANALYSIS" value="true" />
     <property name="android.sdk.path" value="D:/Android_SDK/SDK" />
     <property name="last_opened_file_path" value="$PROJECT_DIR$" />
-    <property name="project.structure.last.edited" value="Project" />
+    <property name="project.structure.last.edited" value="Modules" />
     <property name="project.structure.proportion" value="0.17" />
     <property name="project.structure.side.proportion" value="0.2" />
     <property name="settings.editor.selected.configurable" value="preferences.pluginManager" />
@@ -635,7 +644,7 @@
     </configuration>
   </component>
   <component name="StructureViewFactory">
-    <option name="ACTIVE_ACTIONS" value=",SHOW_LAMBDA" />
+    <option name="ACTIVE_ACTIONS" value=",SHOW_LAMBDA,SHOW_INTERFACES,SHOW_PROPERTIES" />
   </component>
   <component name="SvnConfiguration">
     <configuration />
@@ -823,7 +832,14 @@
       <option name="project" value="LOCAL" />
       <updated>1570707769289</updated>
     </task>
-    <option name="localTasksCounter" value="26" />
+    <task id="LOCAL-00026" summary="comment">
+      <created>1570708781459</created>
+      <option name="number" value="00026" />
+      <option name="presentableId" value="LOCAL-00026" />
+      <option name="project" value="LOCAL" />
+      <updated>1570708781459</updated>
+    </task>
+    <option name="localTasksCounter" value="27" />
     <servers />
   </component>
   <component name="TodoView">
@@ -858,7 +874,7 @@
       <window_info anchor="bottom" id="Terminal" order="7" weight="0.3297587" />
       <window_info anchor="bottom" id="Event Log" order="8" side_tool="true" weight="0.3294271" />
       <window_info anchor="bottom" id="Version Control" order="9" weight="0.3297587" />
-      <window_info active="true" anchor="bottom" id="Build" order="10" visible="true" weight="0.29088473" />
+      <window_info anchor="bottom" id="Build" order="10" visible="true" weight="0.29088473" />
       <window_info anchor="bottom" id="Messages" order="11" weight="0.3297587" />
       <window_info anchor="right" id="Gradle" order="0" weight="0.3297587" />
       <window_info anchor="right" id="Device File Explorer" order="1" side_tool="true" weight="0.3297587" />
@@ -909,9 +925,6 @@
     <option name="LAST_COMMIT_MESSAGE" value="comment" />
   </component>
   <component name="editorHistoryManager">
-    <entry file="file://$PROJECT_DIR$/res/drawable-hdpi/menu_delete.png">
-      <provider selected="true" editor-type-id="images" />
-    </entry>
     <entry file="file://$PROJECT_DIR$/res/drawable-hdpi/notification.png">
       <provider selected="true" editor-type-id="images" />
     </entry>
@@ -966,13 +979,6 @@
     <entry file="file://$PROJECT_DIR$/settings.gradle">
       <provider selected="true" editor-type-id="text-editor" />
     </entry>
-    <entry file="file://$PROJECT_DIR$/app/build.gradle">
-      <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="200">
-          <caret line="10" column="27" lean-forward="true" selection-start-line="10" selection-start-column="27" selection-end-line="10" selection-end-column="27" />
-        </state>
-      </provider>
-    </entry>
     <entry file="file://$PROJECT_DIR$/app/src/main/res/raw-zh-rCN/introduction">
       <provider selected="true" editor-type-id="text-editor">
         <state relative-caret-position="140">
@@ -1134,13 +1140,6 @@
         </state>
       </provider>
     </entry>
-    <entry file="file://$PROJECT_DIR$/app/src/main/java/net/micode/notes/data/NotesProvider.java">
-      <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="5160">
-          <caret line="287" column="1" selection-start-line="287" selection-start-column="1" selection-end-line="287" selection-end-column="1" />
-        </state>
-      </provider>
-    </entry>
     <entry file="file://$PROJECT_DIR$/app/src/main/java/net/micode/notes/ui/AlarmReceiver.java">
       <provider selected="true" editor-type-id="text-editor">
         <state relative-caret-position="200">
@@ -1179,7 +1178,7 @@
     <entry file="file://$PROJECT_DIR$/app/src/main/java/net/micode/notes/model/Note.java">
       <provider selected="true" editor-type-id="text-editor">
         <state relative-caret-position="280">
-          <caret line="44" column="7" lean-forward="true" selection-start-line="44" selection-start-column="7" selection-end-line="44" selection-end-column="7" />
+          <caret line="44" column="7" selection-start-line="44" selection-start-column="7" selection-end-line="44" selection-end-column="7" />
           <folding>
             <element signature="method#getNewNoteId#0;class#Note#0" />
             <element signature="method#Note#0;class#Note#0" />
@@ -1191,20 +1190,6 @@
         </state>
       </provider>
     </entry>
-    <entry file="file://$PROJECT_DIR$/app/src/main/java/net/micode/notes/data/NotesDatabaseHelper.java">
-      <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="-145">
-          <caret line="69" column="25" lean-forward="true" selection-start-line="69" selection-start-column="25" selection-end-line="69" selection-end-column="25" />
-        </state>
-      </provider>
-    </entry>
-    <entry file="file://$PROJECT_DIR$/app/src/main/java/net/micode/notes/ui/NoteEditActivity.java">
-      <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="-4254">
-          <caret line="175" column="51" selection-start-line="175" selection-start-column="51" selection-end-line="175" selection-end-column="51" />
-        </state>
-      </provider>
-    </entry>
     <entry file="file://$PROJECT_DIR$/app/src/main/res/layout/dialog_edit_text.xml">
       <provider editor-type-id="text-editor" />
       <provider selected="true" editor-type-id="android-designer2" />
@@ -1228,29 +1213,10 @@
       </provider>
       <provider editor-type-id="android-designer2" />
     </entry>
-    <entry file="file://$PROJECT_DIR$/app/src/main/res/values-zh-rCN/strings.xml">
-      <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="149">
-          <caret line="40" column="18" selection-start-line="40" selection-start-column="18" selection-end-line="40" selection-end-column="18" />
-        </state>
-      </provider>
-    </entry>
-    <entry file="file://$PROJECT_DIR$/app/src/main/java/net/micode/notes/data/Notes.java">
-      <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="158">
-          <caret line="23" column="28" selection-start-line="23" selection-start-column="28" selection-end-line="23" selection-end-column="28" />
-          <folding>
-            <element signature="e#0#9163#0" expanded="true" />
-            <element signature="class#TextNote#0;class#Notes#0" />
-            <element signature="class#CallNote#0;class#Notes#0" />
-          </folding>
-        </state>
-      </provider>
-    </entry>
     <entry file="file://$PROJECT_DIR$/app/src/main/java/net/micode/notes/ui/NotesListActivity.java">
       <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="335">
-          <caret line="1115" column="9" lean-forward="true" selection-start-line="1115" selection-start-column="9" selection-end-line="1115" selection-end-column="9" />
+        <state relative-caret-position="375">
+          <caret line="1117" column="5" lean-forward="true" selection-start-line="1117" selection-start-column="5" selection-end-line="1117" selection-end-column="5" />
           <folding>
             <element signature="e#10700#10767#0" expanded="true" />
             <element signature="e#11187#11211#0" expanded="true" />
@@ -1269,6 +1235,63 @@
         </state>
       </provider>
     </entry>
+    <entry file="file://$PROJECT_DIR$/app/build.gradle">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="220">
+          <caret line="11" column="5" lean-forward="true" selection-start-line="11" selection-start-column="5" selection-end-line="11" selection-end-column="5" />
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/app/src/main/res/values-zh-rCN/strings.xml">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="-1202">
+          <caret line="40" column="18" selection-start-line="40" selection-start-column="18" selection-end-line="40" selection-end-column="18" />
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/app/src/main/java/net/micode/notes/data/Notes.java">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="158">
+          <caret line="48" column="39" lean-forward="true" selection-start-line="48" selection-start-column="39" selection-end-line="48" selection-end-column="39" />
+          <folding>
+            <element signature="e#0#9163#0" expanded="true" />
+            <element signature="class#TextNote#0;class#Notes#0" />
+            <element signature="class#CallNote#0;class#Notes#0" />
+          </folding>
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/app/src/main/java/net/micode/notes/ui/NoteEditActivity.java">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="59">
+          <caret line="81" column="24" selection-start-line="81" selection-start-column="24" selection-end-line="81" selection-end-column="24" />
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/app/src/main/java/net/micode/notes/data/NotesDatabaseHelper.java">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="20">
+          <caret line="338" selection-start-line="338" selection-end-line="338" />
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://D:/Android_SDK/SDK/sources/android-23/android/database/sqlite/SQLiteOpenHelper.java">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="166">
+          <caret line="184" column="26" selection-start-line="184" selection-start-column="26" selection-end-line="184" selection-end-column="26" />
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/app/src/main/java/net/micode/notes/data/NotesProvider.java">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="183">
+          <caret line="101" column="17" lean-forward="true" selection-start-line="101" selection-start-column="17" selection-end-line="101" selection-end-column="17" />
+          <folding>
+            <element signature="imports" expanded="true" />
+          </folding>
+        </state>
+      </provider>
+    </entry>
   </component>
   <component name="masterDetails">
     <states>
diff --git a/src/app/app.iml b/src/app/app.iml
index f5dc97a..917ced9 100644
--- a/src/app/app.iml
+++ b/src/app/app.iml
@@ -87,8 +87,8 @@
       <sourceFolder url="file://$MODULE_DIR$/src/test/shaders" isTestSource="true" />
       <excludeFolder url="file://$MODULE_DIR$/build" />
     </content>
-    <orderEntry type="jdk" jdkName="Android API 28 Platform" jdkType="Android SDK" />
+    <orderEntry type="jdk" jdkName="Android API 23 Platform" jdkType="Android SDK" />
     <orderEntry type="sourceFolder" forTests="false" />
-    <orderEntry type="library" name="Gradle: org.apache.http.legacy-android-28" level="project" />
+    <orderEntry type="library" name="Gradle: org.apache.http.legacy-android-23" level="project" />
   </component>
 </module>
\ No newline at end of file
diff --git a/src/app/build.gradle b/src/app/build.gradle
index 8569daa..e5a9b07 100644
--- a/src/app/build.gradle
+++ b/src/app/build.gradle
@@ -1,7 +1,7 @@
 apply plugin: 'com.android.application'
 
 android {
-    compileSdkVersion 28
+    compileSdkVersion 23
     buildToolsVersion "29.0.2"
     useLibrary 'org.apache.http.legacy'
 
diff --git a/src/app/build/intermediates/bundle_manifest/debug/processDebugManifest/bundle-manifest/AndroidManifest.xml b/src/app/build/intermediates/bundle_manifest/debug/processDebugManifest/bundle-manifest/AndroidManifest.xml
index f237bf5..97501ac 100644
--- a/src/app/build/intermediates/bundle_manifest/debug/processDebugManifest/bundle-manifest/AndroidManifest.xml
+++ b/src/app/build/intermediates/bundle_manifest/debug/processDebugManifest/bundle-manifest/AndroidManifest.xml
@@ -36,8 +36,7 @@
     <application
         android:debuggable="true"
         android:icon="@drawable/icon_app"
-        android:label="@string/app_name"
-        android:testOnly="true" >
+        android:label="@string/app_name" >
         <activity
             android:name="net.micode.notes.ui.NotesListActivity"
             android:configChanges="keyboardHidden|orientation|screenSize"
diff --git a/src/app/build/intermediates/instant_app_manifest/debug/AndroidManifest.xml b/src/app/build/intermediates/instant_app_manifest/debug/AndroidManifest.xml
index 72a45c5..d4e8cc3 100644
--- a/src/app/build/intermediates/instant_app_manifest/debug/AndroidManifest.xml
+++ b/src/app/build/intermediates/instant_app_manifest/debug/AndroidManifest.xml
@@ -37,8 +37,7 @@
     <application
         android:debuggable="true"
         android:icon="@drawable/icon_app"
-        android:label="@string/app_name"
-        android:testOnly="true" >
+        android:label="@string/app_name" >
         <activity
             android:name="net.micode.notes.ui.NotesListActivity"
             android:configChanges="keyboardHidden|orientation|screenSize"
diff --git a/src/app/build/intermediates/manifest_merge_blame_file/debug/manifest-merger-blame-debug-report.txt b/src/app/build/intermediates/manifest_merge_blame_file/debug/manifest-merger-blame-debug-report.txt
index ca267d7..6295025 100644
--- a/src/app/build/intermediates/manifest_merge_blame_file/debug/manifest-merger-blame-debug-report.txt
+++ b/src/app/build/intermediates/manifest_merge_blame_file/debug/manifest-merger-blame-debug-report.txt
@@ -58,215 +58,214 @@
 37        android:debuggable="true"
 38        android:icon="@drawable/icon_app"
 38-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:34:9-42
-39        android:label="@string/app_name"
+39        android:label="@string/app_name" >
 39-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:35:9-41
-40        android:testOnly="true" >
-41        <activity
-41-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:36:9-49:20
-42            android:name="net.micode.notes.ui.NotesListActivity"
-42-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:37:13-49
-43            android:configChanges="keyboardHidden|orientation|screenSize"
-43-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:38:13-74
-44            android:label="@string/app_name"
-44-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:39:13-45
-45            android:launchMode="singleTop"
-45-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:40:13-43
-46            android:theme="@style/NoteTheme"
-46-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:41:13-45
-47            android:uiOptions="splitActionBarWhenNarrow"
-47-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:42:13-57
-48            android:windowSoftInputMode="adjustPan" >
-48-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:43:13-52
-49            <intent-filter>
-49-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:45:13-48:29
-50                <action android:name="android.intent.action.MAIN" />
-50-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:46:17-69
-50-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:46:25-66
-51
-52                <category android:name="android.intent.category.LAUNCHER" />
-52-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:47:17-77
-52-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:47:27-74
-53            </intent-filter>
-54        </activity>
-55        <activity
-55-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:51:9-79:20
-56            android:name="net.micode.notes.ui.NoteEditActivity"
-56-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:52:13-48
-57            android:configChanges="keyboardHidden|orientation|screenSize"
-57-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:53:13-74
-58            android:launchMode="singleTop"
-58-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:54:13-43
-59            android:theme="@style/NoteTheme" >
-59-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:55:13-45
-60            <intent-filter>
-60-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:57:13-62:29
-61                <action android:name="android.intent.action.VIEW" />
-61-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:58:17-69
-61-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:58:25-66
-62
-63                <category android:name="android.intent.category.DEFAULT" />
-63-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:59:17-76
-63-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:59:27-73
-64
-65                <data android:mimeType="vnd.android.cursor.item/text_note" />
+40        <activity
+40-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:36:9-49:20
+41            android:name="net.micode.notes.ui.NotesListActivity"
+41-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:37:13-49
+42            android:configChanges="keyboardHidden|orientation|screenSize"
+42-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:38:13-74
+43            android:label="@string/app_name"
+43-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:39:13-45
+44            android:launchMode="singleTop"
+44-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:40:13-43
+45            android:theme="@style/NoteTheme"
+45-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:41:13-45
+46            android:uiOptions="splitActionBarWhenNarrow"
+46-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:42:13-57
+47            android:windowSoftInputMode="adjustPan" >
+47-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:43:13-52
+48            <intent-filter>
+48-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:45:13-48:29
+49                <action android:name="android.intent.action.MAIN" />
+49-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:46:17-69
+49-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:46:25-66
+50
+51                <category android:name="android.intent.category.LAUNCHER" />
+51-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:47:17-77
+51-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:47:27-74
+52            </intent-filter>
+53        </activity>
+54        <activity
+54-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:51:9-79:20
+55            android:name="net.micode.notes.ui.NoteEditActivity"
+55-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:52:13-48
+56            android:configChanges="keyboardHidden|orientation|screenSize"
+56-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:53:13-74
+57            android:launchMode="singleTop"
+57-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:54:13-43
+58            android:theme="@style/NoteTheme" >
+58-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:55:13-45
+59            <intent-filter>
+59-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:57:13-62:29
+60                <action android:name="android.intent.action.VIEW" />
+60-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:58:17-69
+60-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:58:25-66
+61
+62                <category android:name="android.intent.category.DEFAULT" />
+62-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:59:17-76
+62-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:59:27-73
+63
+64                <data android:mimeType="vnd.android.cursor.item/text_note" />
+64-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:60:17-78
+64-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:60:23-75
+65                <data android:mimeType="vnd.android.cursor.item/call_note" />
 65-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:60:17-78
 65-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:60:23-75
-66                <data android:mimeType="vnd.android.cursor.item/call_note" />
-66-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:60:17-78
-66-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:60:23-75
-67            </intent-filter>
-68            <intent-filter>
-68-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:64:13-69:29
-69                <action android:name="android.intent.action.INSERT_OR_EDIT" />
-69-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:65:17-79
-69-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:65:25-76
-70
-71                <category android:name="android.intent.category.DEFAULT" />
-71-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:59:17-76
-71-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:59:27-73
-72
-73                <data android:mimeType="vnd.android.cursor.item/text_note" />
+66            </intent-filter>
+67            <intent-filter>
+67-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:64:13-69:29
+68                <action android:name="android.intent.action.INSERT_OR_EDIT" />
+68-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:65:17-79
+68-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:65:25-76
+69
+70                <category android:name="android.intent.category.DEFAULT" />
+70-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:59:17-76
+70-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:59:27-73
+71
+72                <data android:mimeType="vnd.android.cursor.item/text_note" />
+72-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:60:17-78
+72-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:60:23-75
+73                <data android:mimeType="vnd.android.cursor.item/call_note" />
 73-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:60:17-78
 73-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:60:23-75
-74                <data android:mimeType="vnd.android.cursor.item/call_note" />
-74-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:60:17-78
-74-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:60:23-75
-75            </intent-filter>
-76            <intent-filter>
-76-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:71:13-74:29
-77                <action android:name="android.intent.action.SEARCH" />
-77-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:72:17-71
-77-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:72:25-68
-78
-79                <category android:name="android.intent.category.DEFAULT" />
-79-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:59:17-76
-79-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:59:27-73
-80            </intent-filter>
-81
-82            <meta-data
-82-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:76:13-78:54
-83                android:name="android.app.searchable"
-83-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:77:17-54
-84                android:resource="@xml/searchable" />
-84-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:78:17-51
-85        </activity>
-86
-87        <provider
-87-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:81:9-84:43
-88            android:name="net.micode.notes.data.NotesProvider"
-88-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:82:13-63
-89            android:authorities="micode_notes"
-89-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:83:13-47
-90            android:multiprocess="true" />
-90-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:84:13-40
-91
-92        <receiver
-92-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:86:9-98:20
-93            android:name="net.micode.notes.widget.NoteWidgetProvider_2x"
-93-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:87:13-57
-94            android:label="@string/app_widget2x2" >
-94-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:88:13-50
-95            <intent-filter>
-95-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:89:13-93:29
-96                <action android:name="android.appwidget.action.APPWIDGET_UPDATE" />
-96-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:90:17-84
-96-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:90:25-81
-97                <action android:name="android.appwidget.action.APPWIDGET_DELETED" />
-97-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:91:17-85
-97-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:91:25-82
-98                <action android:name="android.intent.action.PRIVACY_MODE_CHANGED" />
-98-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:92:17-85
-98-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:92:25-82
-99            </intent-filter>
-100
-101            <meta-data
-101-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:95:13-97:58
-102                android:name="android.appwidget.provider"
-102-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:96:17-58
-103                android:resource="@xml/widget_2x_info" />
-103-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:97:17-55
-104        </receiver>
-105        <receiver
-105-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:99:9-112:20
-106            android:name="net.micode.notes.widget.NoteWidgetProvider_4x"
-106-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:100:13-57
-107            android:label="@string/app_widget4x4" >
-107-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:101:13-50
-108            <intent-filter>
-108-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:89:13-93:29
-109                <action android:name="android.appwidget.action.APPWIDGET_UPDATE" />
-109-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:90:17-84
-109-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:90:25-81
-110                <action android:name="android.appwidget.action.APPWIDGET_DELETED" />
-110-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:91:17-85
-110-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:91:25-82
-111                <action android:name="android.intent.action.PRIVACY_MODE_CHANGED" />
-111-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:92:17-85
-111-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:92:25-82
-112            </intent-filter>
-113
-114            <meta-data
-114-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:95:13-97:58
-115                android:name="android.appwidget.provider"
-115-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:96:17-58
-116                android:resource="@xml/widget_4x_info" />
-116-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:97:17-55
-117        </receiver>
-118        <receiver android:name="net.micode.notes.ui.AlarmInitReceiver" >
-118-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:114:9-118:20
-118-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:114:19-55
-119            <intent-filter>
-119-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:115:13-117:29
-120                <action android:name="android.intent.action.BOOT_COMPLETED" />
-120-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:116:17-79
-120-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:116:25-76
-121            </intent-filter>
-122        </receiver>
-123        <receiver
-123-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:120:9-123:20
-124            android:name="net.micode.notes.ui.AlarmReceiver"
-124-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:121:13-61
-125            android:process=":remote" >
-125-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:122:13-38
-126        </receiver>
-127
-128        <activity
-128-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:125:9-130:20
-129            android:name="net.micode.notes.ui.AlarmAlertActivity"
-129-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:126:13-50
-130            android:label="@string/app_name"
-130-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:127:13-45
-131            android:launchMode="singleInstance"
-131-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:128:13-48
-132            android:theme="@android:style/Theme.Holo.Wallpaper.NoTitleBar" >
-132-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:129:13-75
-133        </activity>
-134        <activity
-134-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:132:9-137:20
-135            android:name="net.micode.notes.ui.NotesPreferenceActivity"
-135-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:133:13-71
-136            android:label="@string/preferences_title"
-136-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:134:13-54
-137            android:launchMode="singleTop"
-137-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:135:13-43
-138            android:theme="@android:style/Theme.Holo.Light" >
-138-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:136:13-60
-139        </activity>
-140
-141        <service
-141-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:139:9-142:19
-142            android:name="net.micode.notes.gtask.remote.GTaskSyncService"
-142-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:140:13-74
-143            android:exported="false" >
-143-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:141:13-37
-144        </service>
-145
-146        <meta-data
-146-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:144:9-146:52
-147            android:name="android.app.default_searchable"
-147-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:145:13-58
-148            android:value=".ui.NoteEditActivity" />
-148-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:146:13-49
-149    </application>
-150
-151</manifest>
+74            </intent-filter>
+75            <intent-filter>
+75-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:71:13-74:29
+76                <action android:name="android.intent.action.SEARCH" />
+76-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:72:17-71
+76-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:72:25-68
+77
+78                <category android:name="android.intent.category.DEFAULT" />
+78-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:59:17-76
+78-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:59:27-73
+79            </intent-filter>
+80
+81            <meta-data
+81-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:76:13-78:54
+82                android:name="android.app.searchable"
+82-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:77:17-54
+83                android:resource="@xml/searchable" />
+83-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:78:17-51
+84        </activity>
+85
+86        <provider
+86-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:81:9-84:43
+87            android:name="net.micode.notes.data.NotesProvider"
+87-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:82:13-63
+88            android:authorities="micode_notes"
+88-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:83:13-47
+89            android:multiprocess="true" />
+89-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:84:13-40
+90
+91        <receiver
+91-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:86:9-98:20
+92            android:name="net.micode.notes.widget.NoteWidgetProvider_2x"
+92-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:87:13-57
+93            android:label="@string/app_widget2x2" >
+93-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:88:13-50
+94            <intent-filter>
+94-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:89:13-93:29
+95                <action android:name="android.appwidget.action.APPWIDGET_UPDATE" />
+95-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:90:17-84
+95-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:90:25-81
+96                <action android:name="android.appwidget.action.APPWIDGET_DELETED" />
+96-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:91:17-85
+96-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:91:25-82
+97                <action android:name="android.intent.action.PRIVACY_MODE_CHANGED" />
+97-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:92:17-85
+97-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:92:25-82
+98            </intent-filter>
+99
+100            <meta-data
+100-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:95:13-97:58
+101                android:name="android.appwidget.provider"
+101-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:96:17-58
+102                android:resource="@xml/widget_2x_info" />
+102-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:97:17-55
+103        </receiver>
+104        <receiver
+104-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:99:9-112:20
+105            android:name="net.micode.notes.widget.NoteWidgetProvider_4x"
+105-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:100:13-57
+106            android:label="@string/app_widget4x4" >
+106-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:101:13-50
+107            <intent-filter>
+107-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:89:13-93:29
+108                <action android:name="android.appwidget.action.APPWIDGET_UPDATE" />
+108-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:90:17-84
+108-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:90:25-81
+109                <action android:name="android.appwidget.action.APPWIDGET_DELETED" />
+109-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:91:17-85
+109-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:91:25-82
+110                <action android:name="android.intent.action.PRIVACY_MODE_CHANGED" />
+110-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:92:17-85
+110-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:92:25-82
+111            </intent-filter>
+112
+113            <meta-data
+113-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:95:13-97:58
+114                android:name="android.appwidget.provider"
+114-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:96:17-58
+115                android:resource="@xml/widget_4x_info" />
+115-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:97:17-55
+116        </receiver>
+117        <receiver android:name="net.micode.notes.ui.AlarmInitReceiver" >
+117-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:114:9-118:20
+117-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:114:19-55
+118            <intent-filter>
+118-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:115:13-117:29
+119                <action android:name="android.intent.action.BOOT_COMPLETED" />
+119-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:116:17-79
+119-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:116:25-76
+120            </intent-filter>
+121        </receiver>
+122        <receiver
+122-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:120:9-123:20
+123            android:name="net.micode.notes.ui.AlarmReceiver"
+123-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:121:13-61
+124            android:process=":remote" >
+124-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:122:13-38
+125        </receiver>
+126
+127        <activity
+127-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:125:9-130:20
+128            android:name="net.micode.notes.ui.AlarmAlertActivity"
+128-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:126:13-50
+129            android:label="@string/app_name"
+129-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:127:13-45
+130            android:launchMode="singleInstance"
+130-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:128:13-48
+131            android:theme="@android:style/Theme.Holo.Wallpaper.NoTitleBar" >
+131-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:129:13-75
+132        </activity>
+133        <activity
+133-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:132:9-137:20
+134            android:name="net.micode.notes.ui.NotesPreferenceActivity"
+134-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:133:13-71
+135            android:label="@string/preferences_title"
+135-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:134:13-54
+136            android:launchMode="singleTop"
+136-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:135:13-43
+137            android:theme="@android:style/Theme.Holo.Light" >
+137-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:136:13-60
+138        </activity>
+139
+140        <service
+140-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:139:9-142:19
+141            android:name="net.micode.notes.gtask.remote.GTaskSyncService"
+141-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:140:13-74
+142            android:exported="false" >
+142-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:141:13-37
+143        </service>
+144
+145        <meta-data
+145-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:144:9-146:52
+146            android:name="android.app.default_searchable"
+146-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:145:13-58
+147            android:value=".ui.NoteEditActivity" />
+147-->C:\Project\minote\src\app\src\main\AndroidManifest.xml:146:13-49
+148    </application>
+149
+150</manifest>
diff --git a/src/app/build/intermediates/merged_manifests/debug/AndroidManifest.xml b/src/app/build/intermediates/merged_manifests/debug/AndroidManifest.xml
index f237bf5..97501ac 100644
--- a/src/app/build/intermediates/merged_manifests/debug/AndroidManifest.xml
+++ b/src/app/build/intermediates/merged_manifests/debug/AndroidManifest.xml
@@ -36,8 +36,7 @@
     <application
         android:debuggable="true"
         android:icon="@drawable/icon_app"
-        android:label="@string/app_name"
-        android:testOnly="true" >
+        android:label="@string/app_name" >
         <activity
             android:name="net.micode.notes.ui.NotesListActivity"
             android:configChanges="keyboardHidden|orientation|screenSize"
diff --git a/src/app/src/main/java/net/micode/notes/data/NotesDatabaseHelper.java b/src/app/src/main/java/net/micode/notes/data/NotesDatabaseHelper.java
index 10e2f8f..46c117f 100644
--- a/src/app/src/main/java/net/micode/notes/data/NotesDatabaseHelper.java
+++ b/src/app/src/main/java/net/micode/notes/data/NotesDatabaseHelper.java
@@ -36,6 +36,7 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
 
     private static final int DB_VERSION = 4;
 
+    //数据库表项
     public interface TABLE {
         public static final String NOTE = "note";
 
@@ -53,16 +54,16 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
             NoteColumns.PARENT_ID + " INTEGER NOT NULL DEFAULT 0," +
             NoteColumns.ALERTED_DATE + " INTEGER NOT NULL DEFAULT 0," +
             NoteColumns.BG_COLOR_ID + " INTEGER NOT NULL DEFAULT 0," +
-            NoteColumns.CREATED_DATE + " INTEGER NOT NULL DEFAULT (strftime('%s','now') * 1000)," +
+            NoteColumns.CREATED_DATE + " INTEGER NOT NULL DEFAULT (strftime('%s','now') * 1000)," +//创建时间
             NoteColumns.HAS_ATTACHMENT + " INTEGER NOT NULL DEFAULT 0," +
-            NoteColumns.MODIFIED_DATE + " INTEGER NOT NULL DEFAULT (strftime('%s','now') * 1000)," +
+            NoteColumns.MODIFIED_DATE + " INTEGER NOT NULL DEFAULT (strftime('%s','now') * 1000)," +//最近修改时间
             NoteColumns.NOTES_COUNT + " INTEGER NOT NULL DEFAULT 0," +
             NoteColumns.SNIPPET + " TEXT NOT NULL DEFAULT ''," +
             NoteColumns.TYPE + " INTEGER NOT NULL DEFAULT 0," +
             NoteColumns.WIDGET_ID + " INTEGER NOT NULL DEFAULT 0," +
             NoteColumns.WIDGET_TYPE + " INTEGER NOT NULL DEFAULT -1," +
-            NoteColumns.SYNC_ID + " INTEGER NOT NULL DEFAULT 0," +
-            NoteColumns.LOCAL_MODIFIED + " INTEGER NOT NULL DEFAULT 0," +
+            NoteColumns.SYNC_ID + " INTEGER NOT NULL DEFAULT 0," +//同步id
+            NoteColumns.LOCAL_MODIFIED + " INTEGER NOT NULL DEFAULT 0," +//判断是否本地修改
             NoteColumns.ORIGIN_PARENT_ID + " INTEGER NOT NULL DEFAULT 0," +
             NoteColumns.GTASK_ID + " TEXT NOT NULL DEFAULT ''," +
             NoteColumns.VERSION + " INTEGER NOT NULL DEFAULT 0" +
@@ -72,9 +73,9 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
         "CREATE TABLE " + TABLE.DATA + "(" +
             DataColumns.ID + " INTEGER PRIMARY KEY," +
             DataColumns.MIME_TYPE + " TEXT NOT NULL," +
-            DataColumns.NOTE_ID + " INTEGER NOT NULL DEFAULT 0," +
-            NoteColumns.CREATED_DATE + " INTEGER NOT NULL DEFAULT (strftime('%s','now') * 1000)," +
-            NoteColumns.MODIFIED_DATE + " INTEGER NOT NULL DEFAULT (strftime('%s','now') * 1000)," +
+            DataColumns.NOTE_ID + " INTEGER NOT NULL DEFAULT 0," +//便签id
+            NoteColumns.CREATED_DATE + " INTEGER NOT NULL DEFAULT (strftime('%s','now') * 1000)," +//创建时间
+            NoteColumns.MODIFIED_DATE + " INTEGER NOT NULL DEFAULT (strftime('%s','now') * 1000)," +//最近修改时间
             DataColumns.CONTENT + " TEXT NOT NULL DEFAULT ''," +
             DataColumns.DATA1 + " INTEGER," +
             DataColumns.DATA2 + " INTEGER," +
@@ -101,6 +102,7 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
 
     /**
      * 当从文件夹中移除便签时，减少便签数量
+     * SQL语句，对数据库进行操作
      */
     private static final String NOTE_DECREASE_FOLDER_COUNT_ON_UPDATE_TRIGGER =
         "CREATE TRIGGER decrease_folder_count_on_update " +
@@ -243,15 +245,25 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
         db.execSQL("DROP TRIGGER IF EXISTS folder_delete_notes_on_delete");
         db.execSQL("DROP TRIGGER IF EXISTS folder_move_notes_on_trash");
 
+        //增加便签数量当向文件夹移入便签时
         db.execSQL(NOTE_INCREASE_FOLDER_COUNT_ON_UPDATE_TRIGGER);
+        //减少便签，当移除文件夹中的便签时
         db.execSQL(NOTE_DECREASE_FOLDER_COUNT_ON_UPDATE_TRIGGER);
+        //减少便签数量，当从文件夹中删除便签时
         db.execSQL(NOTE_DECREASE_FOLDER_COUNT_ON_DELETE_TRIGGER);
+        //删除已经被删除的便签
         db.execSQL(NOTE_DELETE_DATA_ON_DELETE_TRIGGER);
+        //增加便签数量，当在文件夹中插入便签时
         db.execSQL(NOTE_INCREASE_FOLDER_COUNT_ON_INSERT_TRIGGER);
+        //删除文件夹中已经标记为删除的文件夹
         db.execSQL(FOLDER_DELETE_NOTES_ON_DELETE_TRIGGER);
+        //将便签移动到垃圾文件夹中
         db.execSQL(FOLDER_MOVE_NOTES_ON_TRASH_TRIGGER);
     }
 
+    /*
+    * 该方法实现了在数据库中创建系统文件夹的功能
+    * */
     private void createSystemFolder(SQLiteDatabase db) {
         ContentValues values = new ContentValues();
 
@@ -268,10 +280,11 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
         values.clear();
         values.put(NoteColumns.ID, Notes.ID_ROOT_FOLDER);
         values.put(NoteColumns.TYPE, Notes.TYPE_SYSTEM);
+        //向数据库中插入便签表与内容
         db.insert(TABLE.NOTE, null, values);
 
         /**
-         * temporary folder which is used for moving note
+         * 用于移动便签的临时数据库
          */
         values.clear();
         values.put(NoteColumns.ID, Notes.ID_TEMPARAY_FOLDER);
@@ -292,9 +305,12 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
     * @ db SQL数据库
     * */
     public void createDataTable(SQLiteDatabase db) {
+        //在数据库中创建数据表项
         db.execSQL(CREATE_DATA_TABLE_SQL);
+        //如果发生更改，重建数据库
         reCreateDataTableTriggers(db);
         db.execSQL(CREATE_DATA_NOTE_ID_INDEX_SQL);
+        //如果数据表已经被创建，向日志中加入调试信息
         Log.d(TAG, "data table has been created");
     }
 
@@ -307,8 +323,10 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
         db.execSQL("DROP TRIGGER IF EXISTS update_note_content_on_update");
         db.execSQL("DROP TRIGGER IF EXISTS update_note_content_on_delete");
 
+        //更新数据库当便签内容改变时
         db.execSQL(DATA_UPDATE_NOTE_CONTENT_ON_INSERT_TRIGGER);
         db.execSQL(DATA_UPDATE_NOTE_CONTENT_ON_UPDATE_TRIGGER);
+        //删除便签内容
         db.execSQL(DATA_UPDATE_NOTE_CONTENT_ON_DELETE_TRIGGER);
     }
 
diff --git a/src/app/src/main/java/net/micode/notes/ui/NoteEditActivity.java b/src/app/src/main/java/net/micode/notes/ui/NoteEditActivity.java
index 7d7ceff..2bf3b22 100644
--- a/src/app/src/main/java/net/micode/notes/ui/NoteEditActivity.java
+++ b/src/app/src/main/java/net/micode/notes/ui/NoteEditActivity.java
@@ -72,7 +72,7 @@ import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 
 /**
- *
+ * 该类实现了便签编辑功能的实现
  */
 public class NoteEditActivity extends Activity implements OnClickListener,
         NoteSettingChangedListener, OnTextViewChangeListener {