grid点击

 /**
     * Recycle bitmap resources
     */
    public void recycleBitmapRes() {
        if (mConvertViews != null && !mConvertViews.isEmpty()) {
            Collection<View> views = mConvertViews.values();
            mConvertViews.clear();
            for (View view : views) {
                ImageView icon = (ImageView) view.findViewById(R.id.imgIcon);
                if (icon != null) {
                    if (icon.getDrawable() != null && icon.getDrawable() instanceof BitmapDrawable) {
                        Bitmap bitmap = ((BitmapDrawable) icon.getDrawable()).getBitmap();
                        if (bitmap != null && !bitmap.isRecycled()) {
                            bitmap.recycle();
                        }
                    }
                }
            }
        }
    }

    @Override
    public void notifyDataSetChanged(){
        //Avoiding that buttons cannot be pressed
        Utils.LogI("GameListAdapter", "notifyDataSetChanged");
        recycleBitmapRes();
        super.notifyDataSetChanged();
    }