Android 通过通知将变量传递给活动

以下是我的代码：

gcminentservice:

Intent notificationIntent = new Intent(this, MainActivity.class);
notificationIntent.setAction(Intent.ACTION_MAIN);
notificationIntent.addCategory(Intent.CATEGORY_LAUNCHER);
notificationIntent.putExtra("screen", activityToShow);
notificationIntent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP | Intent.FLAG_ACTIVITY_SINGLE_TOP);

PendingIntent intent2 = PendingIntent.getActivity(this, 0, notificationIntent, PendingIntent.FLAG_UPDATE_CURRENT);

NotificationCompat.Builder nBuilder = 
        new NotificationCompat.Builder(this)
        .setSmallIcon(smallIconToDisplayInGCM)
        .setLargeIcon(largeIconToDisplayInGCM)
        .setContentTitle(title)
        .setContentText(text)
        .setSound(sound)
        .setTicker(ticker)
        .setContentIntent(intent2)
        .setAutoCancel(true);

主要活动：

onCreate（）

onCreate（）之外的新方法

---

当我点击推送通知时，它甚至没有点击Log.d（）

Intent notificationIntent = new Intent(this, MainActivity.class);
    notificationIntent.setAction(Intent.ACTION_MAIN); 
    notificationIntent.addCategory(Intent.CATEGORY_LAUNCHER);
    notificationIntent.putExtra("screen", "debugScreen"); 
    notificationIntent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP | Intent.FLAG_ACTIVITY_SINGLE_TOP);
    NotificationManager nMgr = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
    PendingIntent intent2 = PendingIntent.getActivity(this, 0, notificationIntent, PendingIntent.FLAG_UPDATE_CURRENT);

    NotificationCompat.Builder nBuilder = 
            new NotificationCompat.Builder(this)
            .setSmallIcon(R.drawable.ic_launcher)
            .setContentTitle("Some Title")
            .setContentText("Some text")
            .setContentIntent(intent2)
            .setAutoCancel(true);
    nMgr.notify(0, nBuilder.build());

以及onNewIntent方法：

@Override 
public void onNewIntent(Intent intent){ 
    Bundle extras = intent.getExtras(); 
    String tabNumber;

    if(extras != null) {
        tabNumber = extras.getString("screen");
        Log.d("TEMP", "Tab Number: " + tabNumber);

    } else {
        Log.d("TEMP", "Extras are NULL");

    }
}

我可以检查它是否正常工作，变量是否传递给intent中的活动

我认为您可能做错的是使用变量activityToShow设置意图数据。考虑到Intent.putExtra（…）是一个重载方法，如果您传递一个整数，您将无法获取字符串

我建议您监控活动toshow变量的状态，并向接收器添加一些日志记录，以检查您得到了什么（包括变量类型）以及您在活动中收到了什么

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希望有帮助。

我在活动中调用了onNewIntent（）方法-

MainActivity.java

Intent notificationIntent = new Intent(this, MainActivity.class);
    notificationIntent.setAction(Intent.ACTION_MAIN); 
    notificationIntent.addCategory(Intent.CATEGORY_LAUNCHER);
    notificationIntent.putExtra("screen", "debugScreen"); 
    notificationIntent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP | Intent.FLAG_ACTIVITY_SINGLE_TOP);
    NotificationManager nMgr = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
    PendingIntent intent2 = PendingIntent.getActivity(this, 0, notificationIntent, PendingIntent.FLAG_UPDATE_CURRENT);

    NotificationCompat.Builder nBuilder = 
            new NotificationCompat.Builder(this)
            .setSmallIcon(R.drawable.ic_launcher)
            .setContentTitle("Some Title")
            .setContentText("Some text")
            .setContentIntent(intent2)
            .setAutoCancel(true);
    nMgr.notify(0, nBuilder.build());

@Override 
public void onNewIntent(Intent intent){ 
    Bundle extras = intent.getExtras(); 
    String tabNumber;

    if(extras != null) {
        tabNumber = extras.getString("screen");
        Log.d("TEMP", "Tab Number: " + tabNumber);

    } else {
        Log.d("TEMP", "Extras are NULL");

    }
}