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Commit 9471907b authored by Adam Powell's avatar Adam Powell
Browse files

Toggle wallpaper window flag when setting custom keyguard background 

Disable the wallpaper when showing a full-screen custom keyguard
background, e.g. artwork from the RemoteController. This has two nice
effects:

* The wallpaper doesn't visibly "leak" as the keyguard is dismissed
  and fades out

* We save an extra compositing/overdraw step when drawing custom
  backgrounds

Bug 11172944

Change-Id: Id635dcea6b48392f841c9c549327bccff3308c0a
parent 896a9b17

packages/Keyguard/src/com/android/keyguard/KeyguardViewManager.java

+12 −0
Original line number Diff line number Diff line
@@ -85,6 +85,7 @@ public class KeyguardViewManager { 
        public void onSetBackground(Bitmap bmp) {

            mKeyguardHost.setCustomBackground(bmp != null ?

                    new BitmapDrawable(mContext.getResources(), bmp) : null);

            updateShowWallpaper(bmp == null);

        }

    };
@@ -379,6 +380,16 @@ public class KeyguardViewManager { 
        mViewManager.updateViewLayout(mKeyguardHost, mWindowLayoutParams);

    }



    void updateShowWallpaper(boolean show) {

        if (show) {

            mWindowLayoutParams.flags |= WindowManager.LayoutParams.FLAG_SHOW_WALLPAPER;

        } else {

            mWindowLayoutParams.flags &= ~WindowManager.LayoutParams.FLAG_SHOW_WALLPAPER;

        }



        mViewManager.updateViewLayout(mKeyguardHost, mWindowLayoutParams);

    }



    public void setNeedsInput(boolean needsInput) {

        mNeedsInput = needsInput;

        if (mWindowLayoutParams != null) {
@@ -489,6 +500,7 @@ public class KeyguardViewManager { 
                            lastView.cleanUp();

                            // Let go of any large bitmaps.

                            mKeyguardHost.setCustomBackground(null);

                            updateShowWallpaper(true);

                            mKeyguardHost.removeView(lastView);

                        }

                    }