Question

Is there any way to inflate a view with WindowManager using Animation (at android's project)? I just can't do it even using the examples in sites! I used many examples but none worked!

public BannerLayout(Activity activity, final Context context) {
    super(context);

    this.context = context;

    final WindowManager.LayoutParams params = new WindowManager.LayoutParams( 
            WindowManager.LayoutParams.TYPE_SYSTEM_OVERLAY,
            WindowManager.LayoutParams.FLAG_LAYOUT_IN_SCREEN | 
            WindowManager.LayoutParams.FLAG_WATCH_OUTSIDE_TOUCH,
            PixelFormat.TRANSLUCENT); 

    wm = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE);    

    LayoutInflater inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE); 
    this.popupLayout = (RelativeLayout) inflater.inflate(R.layout.popup_activity, null);
    this.popupLayout.setVisibility(GONE);
    this.setActive(false);

    wm.addView(this.popupLayout, params);

    context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
}


private void show(){
    Animation in = AnimationUtils.loadAnimation(this.context, android.R.anim.fade_in);
    this.popupLayout.setAnimation(in);

    this.setActive(true);
    this.popupLayout.setVisibility(VISIBLE);
}
Était-ce utile?

La solution

I'm not sure about exact requirements for Your task, but there's two ways to provide animation to window:

  1. Use WindowManager.LayoutParams.windowAnimations like the following:

    params.windowAnimations = android.R.style.Animation_Translucent;
    
  2. Add additonal 'container' view, because WindowManager is not a real ViewGroup and so normal animation for adding views is not working with it. This question has been asked already, however it lacks the code. I would apply it the following way:

    public class BannerLayout extends View {
    
        private final Context mContext;
    
        private final ViewGroup mPopupLayout;
    
        private final ViewGroup mParentView;
    
        public BannerLayout(Activity activity, final Context context) {
            super(context);
    
            mContext = context;
    
            final WindowManager.LayoutParams params = new WindowManager.LayoutParams(
                    WindowManager.LayoutParams.TYPE_SYSTEM_OVERLAY,
                    WindowManager.LayoutParams.FLAG_LAYOUT_IN_SCREEN |
                            WindowManager.LayoutParams.FLAG_WATCH_OUTSIDE_TOUCH,
                    PixelFormat.TRANSLUCENT);
    
            final WindowManager mWinManager = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE);
    
            LayoutInflater inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
            mPopupLayout = (RelativeLayout) inflater.inflate(R.layout.popup_activity, null);
            mPopupLayout.setVisibility(GONE);
    
            params.width = ActionBar.LayoutParams.WRAP_CONTENT;
            params.height = ActionBar.LayoutParams.WRAP_CONTENT;
    
            // Default variant
            // params.windowAnimations = android.R.style.Animation_Translucent;
    
            mParentView = new FrameLayout(mContext);
    
            mWinManager.addView(mParentView, params);
    
            mParentView.addView(mPopupLayout);
            mPopupLayout.setVisibility(GONE);
        }
    
        /**
         * Shows view
         */
        public void show(){
            final Animation in = AnimationUtils.loadAnimation(this.mContext, android.R.anim.fade_in);
    
            in.setDuration(2000);
    
            mPopupLayout.setVisibility(VISIBLE);
            mPopupLayout.startAnimation(in);
        }
    
        /**
         * Hides view
         */
        public void hide() {
            mPopupLayout.setVisibility(GONE);
        }
    }
    

Autres conseils

Yes it is indeed possible. As long as the view you want to animate is inside a container, by container I mean for instance a LinearLayout or any other layout will do. Conclusively the view to be animated should not be the root view of a window and so you should be able to animate the view :) Hope it helps

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