AdaptiveIconDrawable cannot be c

Caused by: java.lang.ClassCastException: android.graphics.drawable.AdaptiveIconDrawable cannot be cast to android.graphics.drawable.BitmapDrawable

出现原因是因为应用适配了API 26的自适配图标adaptive-icon，使用下面的方法读取icon，读取到应用的默认的ICON图标是个adaptive-icon 类型，所以造成了强转出错

问题代码：

Bitmap icon = ((BitmapDrawable) activity.getApplicationInfo().loadIcon(activity.getPackageManager())).getBitmap();

解决方案：

Bitmap icon = getIconBitmap(activity);

public static Bitmap getIconBitmap(Activity activity) {

try {

//Drawable icon = ContextCompat.getDrawable(context, iconId);

        Drawable icon = activity.getApplicationInfo().loadIcon(activity.getPackageManager());

        if (icon ==null) {

return null;

        }

if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O && iconinstanceof android.graphics.drawable.AdaptiveIconDrawable) {

Bitmap bitmap = Bitmap.createBitmap(icon.getIntrinsicWidth(), icon.getIntrinsicHeight(), Bitmap.Config.ARGB_8888);

            Canvas canvas =new Canvas(bitmap);

            icon.setBounds(0, 0, canvas.getWidth(), canvas.getHeight());

            icon.draw(canvas);

            return bitmap;

        }else {

return ((BitmapDrawable) icon).getBitmap();

        }

}catch (Exception e) {

return null;

    }

}