[Android Memory] 手動回收ImageVIew的圖片資源

ImageView默認是不進行圖片資源的回收的，需要我們自己在activity或者fragment中進行回收：

public static void releaseImageViewResouce(ImageView imageView) {
        if (imageView == null) return;
        Drawable drawable = imageView.getDrawable();
        if (drawable != null && drawable instanceof BitmapDrawable) {
            BitmapDrawable bitmapDrawable = (BitmapDrawable) drawable;
            Bitmap bitmap = bitmapDrawable.getBitmap();
            if (bitmap != null && !bitmap.isRecycled()) {
                bitmap.recycle();
            }
        }
    }