diff --git a/src/.idea/workspace.xml b/src/.idea/workspace.xml
index e2aeb9a..f00c37b 100644
--- a/src/.idea/workspace.xml
+++ b/src/.idea/workspace.xml
@@ -8,6 +8,7 @@
   <component name="ChangeListManager">
     <list default="true" id="c8515555-ebbc-49d5-889b-0c59bd6c3b6d" name="默认更改列表" comment="">
       <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/tool/BackupUtils.java" beforeDir="false" afterPath="$PROJECT_DIR$/app/src/main/java/net/micode/notes/tool/BackupUtils.java" afterDir="false" />
     </list>
     <option name="EXCLUDED_CONVERTED_TO_IGNORED" value="true" />
     <option name="SHOW_DIALOG" value="false" />
@@ -29,42 +30,10 @@
   <component name="FileEditorManager">
     <leaf SIDE_TABS_SIZE_LIMIT_KEY="300">
       <file pinned="false" current-in-tab="false">
-        <entry file="file://$PROJECT_DIR$/import-summary.txt">
-          <provider selected="true" editor-type-id="text-editor" />
-        </entry>
-      </file>
-      <file pinned="false" current-in-tab="false">
-        <entry file="file://$PROJECT_DIR$/build.gradle">
-          <provider selected="true" editor-type-id="text-editor">
-            <state relative-caret-position="220">
-              <caret line="11" column="13" selection-start-line="11" selection-start-column="13" selection-end-line="11" selection-end-column="13" />
-            </state>
-          </provider>
-        </entry>
-      </file>
-      <file pinned="false" current-in-tab="false">
-        <entry file="file://$PROJECT_DIR$/app/build.gradle">
-          <provider selected="true" editor-type-id="text-editor">
-            <state relative-caret-position="100">
-              <caret line="5" column="39" selection-start-line="5" selection-start-column="39" selection-end-line="5" selection-end-column="39" />
-            </state>
-          </provider>
-        </entry>
-      </file>
-      <file pinned="false" current-in-tab="false">
-        <entry file="file://$PROJECT_DIR$/app/src/main/java/net/micode/notes/gtask/remote/GTaskASyncTask.java">
-          <provider selected="true" editor-type-id="text-editor">
-            <state relative-caret-position="337">
-              <caret line="89" column="5" lean-forward="true" selection-start-line="89" selection-start-column="5" selection-end-line="89" selection-end-column="5" />
-            </state>
-          </provider>
-        </entry>
-      </file>
-      <file pinned="false" current-in-tab="true">
         <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="207">
-              <caret line="244" column="17" lean-forward="true" selection-start-line="244" selection-start-column="17" selection-end-line="244" selection-end-column="17" />
+            <state relative-caret-position="-140">
+              <caret line="180" column="12" selection-start-line="180" selection-start-column="12" selection-end-line="180" selection-end-column="12" />
               <folding>
                 <element signature="e#2949#2950#0" expanded="true" />
                 <element signature="e#2998#2999#0" expanded="true" />
@@ -82,36 +51,61 @@
         </entry>
       </file>
       <file pinned="false" current-in-tab="false">
-        <entry file="file://$PROJECT_DIR$/gradle/wrapper/gradle-wrapper.properties">
+        <entry file="file://$PROJECT_DIR$/app/src/main/java/net/micode/notes/model/WorkingNote.java">
           <provider selected="true" editor-type-id="text-editor">
-            <state relative-caret-position="100">
-              <caret line="5" column="72" selection-start-line="5" selection-start-column="72" selection-end-line="5" selection-end-column="72" />
+            <state relative-caret-position="1003">
+              <caret line="193" column="33" lean-forward="true" selection-start-line="193" selection-start-column="33" selection-end-line="193" selection-end-column="33" />
+              <folding>
+                <element signature="e#7159#7160#0" expanded="true" />
+                <element signature="e#7193#7194#0" expanded="true" />
+                <element signature="e#9888#9889#0" expanded="true" />
+                <element signature="e#9942#9943#0" expanded="true" />
+                <element signature="e#9976#9977#0" expanded="true" />
+                <element signature="e#10007#10008#0" expanded="true" />
+                <element signature="e#10041#10042#0" expanded="true" />
+                <element signature="e#10074#10075#0" expanded="true" />
+                <element signature="e#10111#10112#0" expanded="true" />
+                <element signature="e#10147#10148#0" expanded="true" />
+                <element signature="e#10183#10184#0" expanded="true" />
+                <element signature="e#10251#10252#0" expanded="true" />
+                <element signature="e#10284#10285#0" expanded="true" />
+                <element signature="e#10317#10318#0" expanded="true" />
+                <element signature="e#10353#10354#0" expanded="true" />
+                <element signature="e#10426#10427#0" expanded="true" />
+                <element signature="e#10463#10464#0" expanded="true" />
+                <element signature="e#10491#10492#0" expanded="true" />
+                <element signature="e#10522#10523#0" expanded="true" />
+                <element signature="e#10552#10553#0" expanded="true" />
+                <element signature="e#10585#10586#0" expanded="true" />
+                <element signature="e#10617#10618#0" expanded="true" />
+                <element signature="e#10649#10650#0" expanded="true" />
+                <element signature="e#10681#10682#0" expanded="true" />
+                <element signature="e#10715#10716#0" expanded="true" />
+                <element signature="e#10749#10750#0" expanded="true" />
+              </folding>
             </state>
           </provider>
         </entry>
       </file>
-      <file pinned="false" current-in-tab="false">
-        <entry file="file://$PROJECT_DIR$/settings.gradle">
+      <file pinned="false" current-in-tab="true">
+        <entry file="file://$PROJECT_DIR$/app/src/main/java/net/micode/notes/tool/BackupUtils.java">
           <provider selected="true" editor-type-id="text-editor">
-            <state relative-caret-position="20">
-              <caret line="1" selection-start-line="1" selection-end-line="1" />
+            <state relative-caret-position="399">
+              <caret line="338" lean-forward="true" selection-start-line="338" selection-end-line="338" />
             </state>
           </provider>
         </entry>
       </file>
-      <file pinned="false" current-in-tab="false">
-        <entry file="file://$PROJECT_DIR$/local.properties">
-          <provider selected="true" editor-type-id="text-editor" />
-        </entry>
-      </file>
     </leaf>
   </component>
   <component name="FindInProjectRecents">
     <findStrings>
       <find>WrongNoteID</find>
+      <find>e.printStackTrace();</find>
     </findStrings>
     <replaceStrings>
       <replace>WRONGNOTEID</replace>
+      <replace>LOGGER.log(&quot;context&quot;, e);</replace>
     </replaceStrings>
   </component>
   <component name="Git.Settings">
@@ -130,6 +124,8 @@
         <option value="$PROJECT_DIR$/app/build.gradle" />
         <option value="$PROJECT_DIR$/app/src/main/java/net/micode/notes/gtask/remote/GTaskASyncTask.java" />
         <option value="$PROJECT_DIR$/app/src/main/java/net/micode/notes/model/Note.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/tool/BackupUtils.java" />
       </list>
     </option>
   </component>
@@ -172,6 +168,13 @@
               <item name="notes" type="cbb59c9e:AndroidPsiDirectoryNode" />
               <item name="model" type="462c0819:PsiDirectoryNode" />
             </path>
+            <path>
+              <item name="src" type="1abcf292:AndroidViewProjectNode" />
+              <item name="app" type="feadf853:AndroidModuleNode" />
+              <item name="java" type="edd41e36:AndroidSourceTypeNode" />
+              <item name="notes" type="cbb59c9e:AndroidPsiDirectoryNode" />
+              <item name="tool" type="462c0819:PsiDirectoryNode" />
+            </path>
           </expand>
           <select />
         </subPane>
@@ -285,7 +288,21 @@
       <option name="project" value="LOCAL" />
       <updated>1568108374954</updated>
     </task>
-    <option name="localTasksCounter" value="3" />
+    <task id="LOCAL-00003" summary="correct some error by sonarlint">
+      <created>1568108467671</created>
+      <option name="number" value="00003" />
+      <option name="presentableId" value="LOCAL-00003" />
+      <option name="project" value="LOCAL" />
+      <updated>1568108467671</updated>
+    </task>
+    <task id="LOCAL-00004" summary="none">
+      <created>1568109002344</created>
+      <option name="number" value="00004" />
+      <option name="presentableId" value="LOCAL-00004" />
+      <option name="project" value="LOCAL" />
+      <updated>1568109002344</updated>
+    </task>
+    <option name="localTasksCounter" value="5" />
     <servers />
   </component>
   <component name="ToolWindowManager">
@@ -311,7 +328,7 @@
       <window_info anchor="bottom" id="Debug" order="6" />
       <window_info anchor="bottom" id="Terminal" order="7" />
       <window_info anchor="bottom" id="Event Log" order="8" side_tool="true" />
-      <window_info anchor="bottom" id="Version Control" order="9" />
+      <window_info anchor="bottom" id="Version Control" order="9" weight="0.3297587" />
       <window_info anchor="bottom" id="Build" order="10" weight="0.32931727" />
       <window_info anchor="right" id="Gradle" order="0" />
       <window_info anchor="right" id="Device File Explorer" order="1" side_tool="true" />
@@ -320,10 +337,22 @@
       <window_info anchor="right" id="Palette&#9;" order="4" />
     </layout>
   </component>
+  <component name="Vcs.Log.History.Properties">
+    <option name="COLUMN_ORDER">
+      <list>
+        <option value="0" />
+        <option value="2" />
+        <option value="3" />
+        <option value="1" />
+      </list>
+    </option>
+  </component>
   <component name="VcsManagerConfiguration">
     <MESSAGE value="AS run version" />
     <MESSAGE value="correct some error by sonarlint" />
-    <option name="LAST_COMMIT_MESSAGE" value="correct some error by sonarlint" />
+    <MESSAGE value="correct some error using sonarlint" />
+    <MESSAGE value="none" />
+    <option name="LAST_COMMIT_MESSAGE" value="none" />
   </component>
   <component name="editorHistoryManager">
     <entry file="file://$PROJECT_DIR$/import-summary.txt">
@@ -369,8 +398,8 @@
     </entry>
     <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="207">
-          <caret line="244" column="17" lean-forward="true" selection-start-line="244" selection-start-column="17" selection-end-line="244" selection-end-column="17" />
+        <state relative-caret-position="-140">
+          <caret line="180" column="12" selection-start-line="180" selection-start-column="12" selection-end-line="180" selection-end-column="12" />
           <folding>
             <element signature="e#2949#2950#0" expanded="true" />
             <element signature="e#2998#2999#0" expanded="true" />
@@ -386,6 +415,48 @@
         </state>
       </provider>
     </entry>
+    <entry file="file://$PROJECT_DIR$/app/src/main/java/net/micode/notes/model/WorkingNote.java">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="1003">
+          <caret line="193" column="33" lean-forward="true" selection-start-line="193" selection-start-column="33" selection-end-line="193" selection-end-column="33" />
+          <folding>
+            <element signature="e#7159#7160#0" expanded="true" />
+            <element signature="e#7193#7194#0" expanded="true" />
+            <element signature="e#9888#9889#0" expanded="true" />
+            <element signature="e#9942#9943#0" expanded="true" />
+            <element signature="e#9976#9977#0" expanded="true" />
+            <element signature="e#10007#10008#0" expanded="true" />
+            <element signature="e#10041#10042#0" expanded="true" />
+            <element signature="e#10074#10075#0" expanded="true" />
+            <element signature="e#10111#10112#0" expanded="true" />
+            <element signature="e#10147#10148#0" expanded="true" />
+            <element signature="e#10183#10184#0" expanded="true" />
+            <element signature="e#10251#10252#0" expanded="true" />
+            <element signature="e#10284#10285#0" expanded="true" />
+            <element signature="e#10317#10318#0" expanded="true" />
+            <element signature="e#10353#10354#0" expanded="true" />
+            <element signature="e#10426#10427#0" expanded="true" />
+            <element signature="e#10463#10464#0" expanded="true" />
+            <element signature="e#10491#10492#0" expanded="true" />
+            <element signature="e#10522#10523#0" expanded="true" />
+            <element signature="e#10552#10553#0" expanded="true" />
+            <element signature="e#10585#10586#0" expanded="true" />
+            <element signature="e#10617#10618#0" expanded="true" />
+            <element signature="e#10649#10650#0" expanded="true" />
+            <element signature="e#10681#10682#0" expanded="true" />
+            <element signature="e#10715#10716#0" expanded="true" />
+            <element signature="e#10749#10750#0" expanded="true" />
+          </folding>
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/app/src/main/java/net/micode/notes/tool/BackupUtils.java">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="399">
+          <caret line="338" lean-forward="true" selection-start-line="338" selection-end-line="338" />
+        </state>
+      </provider>
+    </entry>
   </component>
   <component name="masterDetails">
     <states>