如果我按下“全部清除”按钮，为什么我的前台服务会停止

Question

我在清单中的许可

使用权限 android:name="android.permission.FOREGROUND_SERVICE"

服务是

android:stopWithTask="false"

onStartCommand 返回 START_STICKY 并创建此代码的通知

private void startForegroundService() {

    Intent notificationIntent = new Intent(this, MainActivity.class);
    PendingIntent pendingIntent =
            PendingIntent.getActivity(this, 0, notificationIntent, 0);

    Notification notification = null;
    if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.O) {
        notification = new Notification.Builder(this, "SEX")
                        .setContentTitle("getText(R.string.notification_title)")
                        .setContentText("getText(R.string.notification_message)")
                        .setSmallIcon(R.drawable.ic_launcher_background)
                        .setContentIntent(pendingIntent)
                        .setTicker("ssss")
                        .build();
    }else {
        notification = new Notification.Builder(this)
                .setContentTitle("getText(R.string.notification_title)")
                .setContentText("getText(R.string.notification_message)")
                .setSmallIcon(R.drawable.ic_launcher_background)
                .setContentIntent(pendingIntent)
                .setTicker("ssss")
                .build();
    }
    startForeground(423, notification);

}

但是，如果我按下“全部清除”按钮，我的服务就死了，没有调用 onTaskRemoved

Answer 1

您需要的是一个ongoing notification，将其设置在您的Notification.Builder 对象上：

notification = ...
        ...
        .setOngoing(true)
        .build();