Android 通知不显示标题图像 JPG 或 PNG 格式

Question

我正在尝试在通知栏中显示图像。但是当我设置 JPG 格式的图像时，我的应用程序因 android 停止进程而关闭。当我设置 PNG 图标时，图标不显示在那里。我将两种类型的图标都调整为 32dp，并尝试调整为 24dp。这是我的代码和截图——

  public void shownotification(View view){

    Intent intent = new Intent();
    PendingIntent pendingIntent = PendingIntent.getActivity(MainActivity.this,0,intent,0);
    Notification notification = new Notification.Builder(MainActivity.this)
            .setTicker("Tittle")
            .setContentTitle("Content Tittle")
            .setContentText("All details of Content")
            .setSmallIcon(R.drawable.cdc)
            .setContentIntent(pendingIntent).getNotification();
    notification.flags = Notification.FLAG_AUTO_CANCEL;
    NotificationManager notificationManager = (NotificationManager)getSystemService(NOTIFICATION_SERVICE);
    notificationManager.notify(0,notification);
}

Answer 1

Cause for the issue is for 5.0 Lollipop and above version "Notification icons must be entirely white".

请引用以下内容创建您的通知图标https://design.google.com/icons/

并更改您的代码以使用以下代码设置图标

    public void shownotification(View view){    
            Intent intent = new Intent();
            PendingIntent pendingIntent = PendingIntent.getActivity(MainActivity.this,0,intent,0);
            Notification notification = new Notification.Builder(MainActivity.this)
                    .setTicker("Tittle")
                    .setContentTitle("Content Tittle")
                    .setContentText("All details of Content")            
                    .setContentIntent(pendingIntent).getNotification();
        if (android.os.Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP){
            notification.setSmallIcon(R.drawable.cdc_icon_transperent);
        } else { 
            notification.setSmallIcon(R.drawable.cdc);
        } 

            notification.flags = Notification.FLAG_AUTO_CANCEL;
            NotificationManager notificationManager = (NotificationManager)getSystemService(NOTIFICATION_SERVICE);
            notificationManager.notify(0,notification);
}

其中 R.drawable.cdc_icon_transperent 是新的白色图标