实用小抄-工具类（慢慢补充）

 

 // drawable 转换成 bitmap

static Bitmap drawableToBitmap(Drawable drawable)
{
int width = drawable.getIntrinsicWidth();// 取drawable的长宽
int height = drawable.getIntrinsicHeight();
Bitmap.Config config = drawable.getOpacity() != PixelFormat.OPAQUE ? Bitmap.Config.ARGB_8888 : Bitmap.Config.RGB_565;// 取drawable的颜色格式
Bitmap bitmap = Bitmap.createBitmap(width, height, config);// 建立对应bitmap
Canvas canvas = new Canvas(bitmap);// 建立对应bitmap的画布
drawable.setBounds(0, 0, width, height);
drawable.draw(canvas);// 把drawable内容画到画布中
return bitmap;
}

 

 // view 转换成 bitmap

public static Bitmap convertViewToBitmap(View view){
view.measure(MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED), MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED));
view.layout(0, 0, view.getMeasuredWidth(), view.getMeasuredHeight());
view.buildDrawingCache();
Bitmap bitmap = view.getDrawingCache();

return bitmap;
}