Utils.java 文件源码

/**
 * 确保drawable是能够拿到宽高的drawable
 *
 * @param drawable
 * @return
 */
public static Bitmap drawableToBitmap(Drawable drawable) {
    if (drawable == null
            && drawable.getIntrinsicWidth() > 0
            && drawable.getIntrinsicHeight() > 0) {
        return null;
    }
    Bitmap bitmap = Bitmap
            .createBitmap(
                    drawable.getIntrinsicWidth(),
                    drawable.getIntrinsicHeight(),
                    drawable.getOpacity() != PixelFormat.OPAQUE ? Bitmap.Config.ARGB_8888
                            : Bitmap.Config.RGB_565);
    Canvas canvas = new Canvas(bitmap);
    drawable.setBounds(0, 0, drawable.getIntrinsicWidth(),
            drawable.getIntrinsicHeight());
    Log.i("Utilities",
            "drawableToBitmap drawable.getIntrinsicWidth()=" + drawable.getIntrinsicWidth()
                    + ",drawable.getIntrinsicHeight()="
                    + drawable.getIntrinsicHeight());
    drawable.draw(canvas);
    return bitmap;
}