通过IntentService创建的通知使用传真错误意向 [英] Notification created by IntentService uses allways a wrong Intent

问题描述

当用户presses 发送按钮1（向下滚动到看到应用程序的构建）一个新的<一个href="http://developer.android.com/reference/android/app/Notification.html"><$c$c>Notification从 RefreshService 创建。如果用户presses此通知的 MainActivity 实例被启动，并且收到的 字符串 的值按钮1 过<一href="http://developer.android.com/reference/android/content/Intent.html"><$c$c>Intent.

When the user presses Send "Button 1"(scroll down to see the construction of the app) a new Notification is created from the RefreshService. If the user presses this notification a MainActivity instance gets started and receives a String with the value Button 1 over the Intent.

此值将被显示出来。

当用户现在presses的发送按钮2新的<一个href="http://developer.android.com/reference/android/app/Notification.html"><$c$c>Notification从 RefreshService 创建。如果用户presses此通知的 MainActivity 实例被启动，并且收到的 字符串 同时的值按钮1 在<一个href="http://developer.android.com/reference/android/content/Intent.html"><$c$c>Intent.

When the user presses now the Send "Button 2" a new Notification is created from the RefreshService. If the user presses this notification a MainActivity instance gets started and receives a String ALSO with the value Button 1 over the Intent.

因此​​，大家可以猜到，通常应该有值按钮2 。

So as you can guess, normally there should be the value Button 2.

在第一个按钮，用户pressed WAS 发送按钮2那么就八方通按钮2 发送。

When the first Button the user pressed was Send "Button 2" then there would allways Button 2 be sent.

唯一sollution获得第二个按钮的值是重启手机和$ P $第一pssing第二个按钮。即使是强制关闭不工作。

The only sollution to get the value of the second button is to restart the phone and pressing the second button first. Even force close doesn't work.

我知道，我也可以改变用户界面以另一种方式。但我需要这种方法的应用程序，我需要重新启动与另一 意图 这样的做法应该是相同的。

I know that I also can change the UI in another way. But I need this approach in a app where I need to restart the 'MainActivity' with another Intent so the approach should be the same.

• 一个 活动 名为 MainActivity

A <一个href="http://developer.android.com/reference/android/app/IntentService.html"><$c$c>IntentService名为 RefreshService

MainActivity 的

MainActivity

public class MainActivity extends Activity implements View.OnClickListener {
    public static final String RECEIVED = "received";

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        ((TextView)findViewById(R.id.textView_received)).setText(getIntent().getStringExtra(RECEIVED));

        findViewById(R.id.button_1).setOnClickListener(this);
        findViewById(R.id.button_2).setOnClickListener(this);
    }

    @Override
    public void onClick(View v) {
        Intent intent = new Intent(this, RefreshService.class);

        if(v.getId() == R.id.button_1){
            intent.putExtra(RECEIVED, "Button 1");
            Toast.makeText(this,"Sent \"Button 1\"",Toast.LENGTH_LONG).show();
        }
        else if(v.getId() == R.id.button_2){
            intent.putExtra(RECEIVED, "Button 2");
            Toast.makeText(this,"Sent \"Button 2\"",Toast.LENGTH_LONG).show();
        }

        startService(intent);
    }
}

RefreshService 的

RefreshService

public class RefreshService extends IntentService {
    public RefreshService() {
        super("RefreshService");
    }

    @Override
    protected void onHandleIntent(Intent intent) {
        String received = intent.getStringExtra(MainActivity.RECEIVED);

        Intent notificationIntent = new Intent(this, MainActivity.class);
        notificationIntent.putExtra(MainActivity.RECEIVED, received);
        notificationIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);

        PendingIntent pendingIntent = PendingIntent.getActivity(this, 0, notificationIntent, 0);

        NotificationCompat.Builder builder = new NotificationCompat.Builder(this).setContentTitle("IntentServiceRefresh").setContentText(received).setSmallIcon(R.drawable.ic_notification_small).setContentIntent(pendingIntent);
        Notification notification = builder.build();

        // Hide the notification after it's selected
        notification.flags |= Notification.FLAG_AUTO_CANCEL;

        NotificationManager notificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
        notificationManager.notify(0, notification);
    }
}

应用布局的

App Layout

要简单地测试了这一点，我创建了一个应用程序为Android的工作室项目，该项目 可以在这里找到：<一href="https://github.com/SimonMayerhofer/IntentServiceRefresh">https://github.com/SimonMayerhofer/IntentServiceRefresh

To simply test this I created a app as a Android Studio Project which can be found here: https://github.com/SimonMayerhofer/IntentServiceRefresh

推荐答案

我的怀疑是，因为唯一的意图改变的是群众演员，在 PendingIntent.getActivity（...）工厂方法是简单地重新使用旧的意图作为优化。

My suspicion is that, since the only thing changing in the Intent is the extras, the PendingIntent.getActivity(...) factory method is simply re-using the old intent as an optimization.

在RefreshService，请尝试：

In RefreshService, try:

PendingIntent pendingIntent = PendingIntent.getActivity(this, 0, notificationIntent, PendingIntent.FLAG_CANCEL_CURRENT);

请参阅：

<一个href="http://developer.android.com/reference/android/app/PendingIntent.html#FLAG_CANCEL_CURRENT">http://developer.android.com/reference/android/app/PendingIntent.html#FLAG_CANCEL_CURRENT

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