Enable live wallpaper in Launcher2

res/layout-land/launcher.xml

@@ -22,11 +22,6 @@
     android:layout_width="fill_parent"
     android:layout_height="fill_parent">
 
-    <com.android.launcher2.WallpaperView
-        android:id="@+id/wallpaper"
-        android:layout_width="fill_parent"
-        android:layout_height="fill_parent" />
-
     <!-- The workspace contains 3 screens of cells -->
     <com.android.launcher2.Workspace
         android:id="@+id/workspace"

res/layout-port/launcher.xml

@@ -21,11 +21,6 @@
     android:layout_width="fill_parent"
     android:layout_height="fill_parent">
 
-<com.android.launcher2.WallpaperView
-    android:id="@+id/wallpaper"
-    android:layout_width="fill_parent"
-    android:layout_height="fill_parent" />
-
 <com.android.launcher2.DragLayer
     android:id="@+id/drag_layer"
     android:layout_width="fill_parent"

res/values/styles.xml

@@ -18,8 +18,7 @@
 -->
 
 <resources>
-    <style name="Theme" parent="android:Theme">
+    <style name="Theme" parent="android:Theme.Wallpaper">
-        <item name="android:windowBackground">@null</item>
         <item name="android:windowNoTitle">true</item>
     </style>
 

src/com/android/launcher2/Launcher.java

@@ -18,7 +18,6 @@ package com.android.launcher2;
 
 import android.app.Activity;
 import android.app.AlertDialog;
-import android.app.Application;
 import android.app.Dialog;
 import android.app.ISearchManager;
 import android.app.SearchManager;
@@ -40,7 +39,6 @@ import android.content.res.Configuration;
 import android.content.res.Resources;
 import android.database.ContentObserver;
 import android.graphics.Bitmap;
-import android.graphics.drawable.BitmapDrawable;
 import android.graphics.drawable.Drawable;
 import android.graphics.drawable.TransitionDrawable;
 import android.os.Bundle;
@@ -64,6 +62,7 @@ import android.view.Menu;
 import android.view.MenuItem;
 import android.view.View;
 import android.view.ViewGroup;
+import android.view.WindowManager;
 import android.view.View.OnLongClickListener;
 import android.view.inputmethod.InputMethodManager;
 import android.widget.EditText;
@@ -88,7 +87,6 @@ public final class Launcher extends Activity implements View.OnClickListener, On
     static final boolean LOGD = false;
 
     private static final boolean PROFILE_STARTUP = false;
-    private static final boolean PROFILE_DRAWER = false;
     private static final boolean PROFILE_ROTATE = false;
     private static final boolean DEBUG_USER_INTERFACE = false;
 
@@ -154,21 +152,15 @@ public final class Launcher extends Activity implements View.OnClickListener, On
 
     private static final LauncherModel sModel = new LauncherModel();
 
-    private static Bitmap sWallpaper;
-
     private static final Object sLock = new Object();
     private static int sScreen = DEFAULT_SCREN;
 
-    private static WallpaperIntentReceiver sWallpaperReceiver;
-
     private final BroadcastReceiver mApplicationsReceiver = new ApplicationsIntentReceiver();
     private final ContentObserver mObserver = new FavoritesChangeObserver();
 
     private LayoutInflater mInflater;
 
     private DragController mDragController;
-    private DragLayer mDragLayer;
-    private WallpaperView mWallpaperView;
     private Workspace mWorkspace;
 
     private AppWidgetManager mAppWidgetManager;
@@ -182,7 +174,6 @@ public final class Launcher extends Activity implements View.OnClickListener, On
     private FolderInfo mFolderInfo;
 
     private AllAppsDialog mAllAppsDialog;
-    private TransitionDrawable mHandleIcon;
     private HandleView mHandleView;
     private AllAppsView mAllAppsGrid; // TODO: put this into AllAppsDialog
 
@@ -209,6 +200,8 @@ public final class Launcher extends Activity implements View.OnClickListener, On
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
+        getWindow().addFlags(WindowManager.LayoutParams.FLAG_SHOW_WALLPAPER);
+
         mInflater = getLayoutInflater();
 
         mAppWidgetManager = AppWidgetManager.getInstance(this);
@@ -532,13 +525,9 @@ public final class Launcher extends Activity implements View.OnClickListener, On
         mDragController = new DragController(this);
         DragController dragController = mDragController;
 
-        mDragLayer = (DragLayer) findViewById(R.id.drag_layer);
+        DragLayer dragLayer = (DragLayer) findViewById(R.id.drag_layer);
-        final DragLayer dragLayer = mDragLayer;
         dragLayer.setDragController(dragController);
 
-        mWallpaperView = (WallpaperView) findViewById(R.id.wallpaper);
-        final WallpaperView wallpaper = mWallpaperView;
-
         mWorkspace = (Workspace) dragLayer.findViewById(R.id.workspace);
         final Workspace workspace = mWorkspace;
 
@@ -547,16 +536,12 @@ public final class Launcher extends Activity implements View.OnClickListener, On
         mHandleView = (HandleView) findViewById(R.id.all_apps);
         mHandleView.setLauncher(this);
         mHandleView.setOnClickListener(this);
-        mHandleIcon = (TransitionDrawable) mHandleView.getDrawable();
+        TransitionDrawable handleIcon = (TransitionDrawable) mHandleView.getDrawable();
-        mHandleIcon.setCrossFadeEnabled(true);
+        handleIcon.setCrossFadeEnabled(true);
 
         workspace.setOnLongClickListener(this);
         workspace.setDragController(dragController);
         workspace.setLauncher(this);
-        workspace.setWallpaper(wallpaper);
-
-        loadWallpaper();
-        wallpaper.setScreenCount(workspace.getScreenCount());
 
         deleteZone.setLauncher(this);
         deleteZone.setDragController(dragController);
@@ -1275,17 +1260,6 @@ public final class Launcher extends Activity implements View.OnClickListener, On
      * wallpaper.
      */
     private void registerIntentReceivers() {
-        if (sWallpaperReceiver == null) {
-            final Application application = getApplication();
-
-            sWallpaperReceiver = new WallpaperIntentReceiver(application, this);
-
-            IntentFilter filter = new IntentFilter(Intent.ACTION_WALLPAPER_CHANGED);
-            application.registerReceiver(sWallpaperReceiver, filter);
-        } else {
-            sWallpaperReceiver.setLauncher(this);
-        }
-
         IntentFilter filter = new IntentFilter(Intent.ACTION_PACKAGE_ADDED);
         filter.addAction(Intent.ACTION_PACKAGE_REMOVED);
         filter.addAction(Intent.ACTION_PACKAGE_CHANGED);
@@ -1614,25 +1588,6 @@ public final class Launcher extends Activity implements View.OnClickListener, On
         }
     }
 
-    private void loadWallpaper() {
-        // The first time the application is started, we load the wallpaper from
-        // the ApplicationContext
-        if (sWallpaper == null) {
-            final Drawable drawable;
-            if (false) {
-                drawable = getWallpaper();
-            } else {
-                drawable = getResources().getDrawable(R.drawable.wallpaper_path);
-            }
-            if (drawable instanceof BitmapDrawable) {
-                sWallpaper = ((BitmapDrawable) drawable).getBitmap();
-            } else {
-                throw new IllegalStateException("The wallpaper must be a BitmapDrawable.");
-            }
-        }
-        mWallpaperView.loadWallpaper(sWallpaper);
-    }
-
     /**
      * Opens the user fodler described by the specified tag. The opening of the folder
      * is animated relative to the specified View. If the View is null, no animation
@@ -1885,7 +1840,7 @@ public final class Launcher extends Activity implements View.OnClickListener, On
             setOnShowListener(this);
 
             setContentView(R.layout.all_apps);
-            AllAppsView grid = mAllAppsGrid = (AllAppsView)findViewById(R.id.all_apps);
+            mAllAppsGrid = (AllAppsView) findViewById(R.id.all_apps);
 
             DragLayer dragLayer = (DragLayer)findViewById(R.id.drag_layer);
             dragLayer.setDragController(mDragController);
@@ -1916,7 +1871,8 @@ public final class Launcher extends Activity implements View.OnClickListener, On
             // TODO
         }
 
-        @Override public boolean onKeyDown(int keyCode, KeyEvent event) {
+        @Override
+        public boolean onKeyDown(int keyCode, KeyEvent event) {
             switch (keyCode) {
                 case KeyEvent.KEYCODE_BACK:
                     closeAllAppsDialog(true);
@@ -2136,43 +2092,6 @@ public final class Launcher extends Activity implements View.OnClickListener, On
         }
     }
 
-    /**
-     * Receives intents from other applications to change the wallpaper.
-     */
-    private static class WallpaperIntentReceiver extends BroadcastReceiver {
-        private final Application mApplication;
-        private WeakReference<Launcher> mLauncher;
-
-        WallpaperIntentReceiver(Application application, Launcher launcher) {
-            mApplication = application;
-            setLauncher(launcher);
-        }
-
-        void setLauncher(Launcher launcher) {
-            mLauncher = new WeakReference<Launcher>(launcher);
-        }
-
-        @Override
-        public void onReceive(Context context, Intent intent) {
-            // Load the wallpaper from the ApplicationContext and store it locally
-            // until the Launcher Activity is ready to use it
-            final Drawable drawable = mApplication.getWallpaper();
-            if (drawable instanceof BitmapDrawable) {
-                sWallpaper = ((BitmapDrawable) drawable).getBitmap();
-            } else {
-                throw new IllegalStateException("The wallpaper must be a BitmapDrawable.");
-            }
-
-            // If Launcher is alive, notify we have a new wallpaper
-            if (mLauncher != null) {
-                final Launcher launcher = mLauncher.get();
-                if (launcher != null) {
-                    launcher.loadWallpaper();
-                }
-            }
-        }
-    }
-
     private static class DesktopBinder extends Handler implements MessageQueue.IdleHandler {
         static final int MESSAGE_BIND_ITEMS = 0x1;
         static final int MESSAGE_BIND_APPWIDGETS = 0x2;

src/com/android/launcher2/WallpaperView.java

@@ -1,136 +0,0 @@
-/*
- * Copyright (C) 2009 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package com.android.launcher2;
-
-import android.content.Context;
-import android.content.Intent;
-import android.content.ComponentName;
-import android.content.res.TypedArray;
-import android.graphics.Bitmap;
-import android.graphics.Canvas;
-import android.graphics.Paint;
-import android.graphics.RectF;
-import android.graphics.Rect;
-import android.graphics.Region;
-import android.graphics.drawable.Drawable;
-import android.util.AttributeSet;
-import android.view.MotionEvent;
-import android.view.VelocityTracker;
-import android.view.View;
-import android.view.ViewConfiguration;
-import android.view.ViewGroup;
-import android.view.ViewParent;
-import android.widget.Scroller;
-import android.widget.TextView;
-import android.os.Parcelable;
-import android.os.Parcel;
-
-import java.util.ArrayList;
-
-/**
- * Wallpaper view shows the wallpaper bitmap, which is far layer in the parallax.
- */
-public class WallpaperView extends View {
-
-    private int mScreenCount;
-
-    private Paint mPaint;
-    private Bitmap mWallpaper;
-
-    private int mWallpaperWidth;
-    private int mWallpaperHeight;
-    private float mWallpaperOffset;
-    private boolean mWallpaperLoaded;
-
-    /**
-     * Used to inflate the Workspace from XML.
-     *
-     * @param context The application's context.
-     * @param attrs The attribtues set containing the Workspace's customization values.
-     */
-    public WallpaperView(Context context, AttributeSet attrs) {
-        this(context, attrs, 0);
-    }
-
-    /**
-     * Used to inflate the Workspace from XML.
-     *
-     * @param context The application's context.
-     * @param attrs The attribtues set containing the Workspace's customization values.
-     * @param defStyle Unused.
-     */
-    public WallpaperView(Context context, AttributeSet attrs, int defStyle) {
-        super(context, attrs, defStyle);
-
-        initWorkspace();
-    }
-
-    /**
-     * Initializes various states for this workspace.
-     */
-    private void initWorkspace() {
-        mPaint = new Paint();
-        mPaint.setDither(false);
-    }
-
-    /**
-     * Set the background's wallpaper.
-     */
-    void loadWallpaper(Bitmap bitmap) {
-        mWallpaper = bitmap;
-        mWallpaperLoaded = true;
-        requestLayout();
-        invalidate();
-    }
-
-    void setScreenCount(int count) {
-        mScreenCount = count;
-    }
-
-    @Override
-    public boolean isOpaque() {
-        return !mWallpaper.hasAlpha();
-    }
-
-    @Override
-    protected void onDraw(Canvas canvas) {
-        boolean restore = false;
-
-        float x = mScrollX * mWallpaperOffset;
-        if (x + mWallpaperWidth < mRight - mLeft) {
-            x = mRight - mLeft - mWallpaperWidth;
-        }
-
-        canvas.drawBitmap(mWallpaper, x, (mBottom - mTop - mWallpaperHeight) / 2, mPaint);
-    }
-
-    @Override
-    protected void onSizeChanged(int width, int height, int oldw, int oldh) {
-        
-        if (mWallpaperLoaded) {
-            mWallpaperLoaded = false;
-            mWallpaper = Utilities.centerToFit(mWallpaper, width, height, getContext());
-            mWallpaperWidth = mWallpaper.getWidth();
-            mWallpaperHeight = mWallpaper.getHeight();
-        }
-
-        final int wallpaperWidth = mWallpaperWidth;
-        mWallpaperOffset = wallpaperWidth > width ? (mScreenCount * width - wallpaperWidth) /
-                ((mScreenCount - 1) * (float) width) : 1.0f;
-    }
-}
-

src/com/android/launcher2/Workspace.java

@@ -20,15 +20,11 @@ import android.content.Context;
 import android.content.Intent;
 import android.content.ComponentName;
 import android.content.res.TypedArray;
-import android.graphics.Bitmap;
 import android.graphics.Canvas;
-import android.graphics.Paint;
 import android.graphics.RectF;
 import android.graphics.Rect;
-import android.graphics.Region;
 import android.graphics.drawable.Drawable;
 import android.util.AttributeSet;
-import android.util.Log;
 import android.view.MotionEvent;
 import android.view.VelocityTracker;
 import android.view.View;
@@ -57,7 +53,6 @@ public class Workspace extends ViewGroup implements DropTarget, DragSource, Drag
     private static final int SNAP_VELOCITY = 1000;
 
     private int mDefaultScreen;
-    private View mWallpaper;
 
     private boolean mFirstLayout = true;
 
@@ -153,10 +148,6 @@ public class Workspace extends ViewGroup implements DropTarget, DragSource, Drag
         mTween = new SymmetricalLinearTween(true, 250/*ms*/, this);
     }
 
-    void setWallpaper(View wallpaper) {
-        mWallpaper = wallpaper;
-    }
-
     @Override
     public void addView(View child, int index, LayoutParams params) {
         if (!(child instanceof CellLayout)) {
@@ -464,7 +455,6 @@ public class Workspace extends ViewGroup implements DropTarget, DragSource, Drag
         if (mScroller.computeScrollOffset()) {
             mScrollX = mScroller.getCurrX();
             mScrollY = mScroller.getCurrY();
-            mWallpaper.scrollTo(mScrollX, mScrollY);
             postInvalidate();
         } else if (mNextScreen != INVALID_SCREEN) {
             mCurrentScreen = Math.max(0, Math.min(mNextScreen, getChildCount() - 1));
@@ -779,14 +769,12 @@ public class Workspace extends ViewGroup implements DropTarget, DragSource, Drag
                 if (deltaX < 0) {
                     if (mScrollX > 0) {
                         scrollBy(Math.max(-mScrollX, deltaX), 0);
-                        mWallpaper.scrollTo(mScrollX, mScrollY);
                     }
                 } else if (deltaX > 0) {
                     final int availableToScroll = getChildAt(getChildCount() - 1).getRight() -
                             mScrollX - getWidth();
                     if (availableToScroll > 0) {
                         scrollBy(Math.min(availableToScroll, deltaX), 0);
-                        mWallpaper.scrollTo(mScrollX, mScrollY);
                     }
                 }
             }