Android Launcher 如何?壁紙置中

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本文

 

KK Launcher3的wallpaper顯示是動態,與Launcher預置案頭數目有關,讓壁紙置中,只能確保第一次開機時壁紙置中,後面使用者修改案頭數目後,就無法達到了。如何要在預設案頭數目配置時置中,可以參考下面方法,以default一屏為例:Launcher3的workspace.java檔案替換下面的函數private void updateOffset(boolean force) {
            if (mWaitingForUpdate || force) {
                mWaitingForUpdate = false;
    LauncherLog.d(TAG, "updateOffset: mWallpaperOffset = " + mWallpaperOffset.getCurrX());
                if (computeScrollOffset() && mWindowToken != null) {
                    try {
       if (getChildCount() <= 1) {
           LauncherLog.d(TAG, "wallpaperOffset 111");
                 mWallpaperManager.setWallpaperOffsets(mWindowToken,
                               /* mWallpaperOffset.getCurrX()*/0.5f, 0.5f);
         }else{
                             LauncherLog.d(TAG, "wallpaperOffset 222");
                             mWallpaperManager.setWallpaperOffsets(mWindowToken,
                               mWallpaperOffset.getCurrX(), 0.5f);
             }
                        setWallpaperOffsetSteps();
                    } catch (IllegalArgumentException e) {
                        Log.e(TAG, "Error updating wallpaper offset: " + e);
                    }
                }
            }
        } 

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