ImageUtils.java 文件源码

/**
 * 获取bitmap
 *
 * @param resId 资源id
 * @return bitmap
 */
public static Bitmap getBitmap(@DrawableRes final int resId) {
    Drawable drawable = ContextCompat.getDrawable(Utils.getApp(), resId);
    Canvas canvas = new Canvas();
    Bitmap bitmap = Bitmap.createBitmap(drawable.getIntrinsicWidth(), drawable.getIntrinsicHeight(), Bitmap.Config.ARGB_8888);
    canvas.setBitmap(bitmap);
    drawable.setBounds(0, 0, drawable.getIntrinsicWidth(), drawable.getIntrinsicHeight());
    drawable.draw(canvas);
    return bitmap;
}