android - 从布局创建可绘制对象

Question

有没有办法从布局生成可绘制对象？

其实我的初始布局需要裁剪一部分，我的想法是将布局转换为drawable对象，然后裁剪drawable。

Answer 1

一个简单的版本:

Bitmap snapshot = null;
    Drawable drawable = null;
    yourView.setDrawingCacheEnabled(true);
    yourView.setDrawingCacheQuality(View.DRAWING_CACHE_QUALITY_LOW); //Quality of the snpashot
    try {
        snapshot = Bitmap.createBitmap(yourView.getDrawingCache(), sizes and stuff); // You can tell how to crop the snapshot and whatever in this method
        drawable = new BitmapDrawable(snapshot)
    } finally {
        yourView.setDrawingCacheEnabled(false);
    }