做分享，点击按钮直接通过view生成bitmap，view不展示

public static Bitmap createBitmap3(View v, int width, int height) {
        //测量使得view指定大小
        int measuredWidth = View.MeasureSpec.makeMeasureSpec(width, View.MeasureSpec.EXACTLY);
        int measuredHeight = View.MeasureSpec.makeMeasureSpec(height, View.MeasureSpec.EXACTLY);
        v.measure(measuredWidth, measuredHeight);
        //调用layout方法布局后，可以得到view的尺寸大小
        v.layout(0, 0, v.getMeasuredWidth(), v.getMeasuredHeight());
        Bitmap bmp = Bitmap.createBitmap(v.getWidth(), v.getHeight(), Bitmap.Config.ARGB_8888);
        Canvas c = new Canvas(bmp);
        c.drawColor(Color.WHITE);
        v.draw(c);
        return bmp;
    }

使用：

  mRootView = LayoutInflater.from(this).inflate(R.layout.activity_main, null);
//这里传值屏幕宽高，得到的视图即全屏大小
  createBitmap3(mRootView, getScreenWidth(), getScreenHeight());

生成scrollview的bitmap点下方链接
转载：https://www.cnblogs.com/taixiang/p/9575195.html