创建一个从布局绘制 [英] Create drawable from layout

问题描述

有没有一种方法来生成一个布局绘制对象？

Is there a way to generate a drawable object from a layout?

其实，我需要我的初始布局的裁剪一部分，我的想法是把布局成一个可绘制对象，然后裁剪绘制。

In fact, I need a cropped part of my initial layout, and my idea is to transform the layout into a drawable object and then to crop drawable.

推荐答案

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);
    }

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