android - NotificationCompat.setLargeIcon(Bitmap) 未显示

Question

我正在处理通知。但是 setLargeIcon(Bitmap) 方法不起作用。这是我的代码 fragment :

NotificationManager notificationManager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
NotificationCompat.Builder notificationCompatBuilder = new NotificationCompat.Builder(this, "chanel1103")
            .setLargeIcon(BitmapFactory.decodeResource(getResources(), R.drawable.ic_music_player))
            .setSmallIcon(android.R.drawable.ic_lock_idle_alarm)
            .setContentTitle(getString(R.string.noti_title))
            .setContentText(getString(R.string.noti_content));
            .setSubText(getString(R.string.noti_sub_text));

if (notificationManager != null) {
      notificationManager.notify(1, notificationCompatBuilder.build());
}

无论我将 setLargeIcon 放在 setSmallIcon 之前，它仍然不起作用。它只为 small 和 largeIcon 显示 smallIcon。我的大图标是矢量可绘制

Answer 1

如果您使用矢量图像资源，您必须像这样获取位图:

public static Bitmap getBitmapFromVectorDrawable(Context context, int drawableId) {
    Drawable drawable = ContextCompat.getDrawable(context, drawableId);
    Bitmap bitmap = Bitmap.createBitmap(drawable.getIntrinsicWidth(),
            drawable.getIntrinsicHeight(), Bitmap.Config.ARGB_8888);
    Canvas canvas = new Canvas(bitmap);
    drawable.setBounds(0, 0, canvas.getWidth(), canvas.getHeight());
    drawable.draw(canvas);

    return bitmap;
}

然后在您的构建器中:

.setLargeIcon(getBitmapFromVectorDrawable(this, R.drawable.R.drawable.ic_music_player))