Question

我的Android应用程序中有一个奇怪的问题。我已完成通知，我想在点击通知时启动新活动。问题是当我点击通知时没有任何反应，我不知道问题出在哪里？任何人都可以帮助我吗？这是我的代码：

notificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
CharSequence NotificationTicket = "Notification";
CharSequence NotificationTitle = "Notification";
CharSequence NotificationContent = "Test";
long when = System.currentTimeMillis();

Notification notification = new Notification(R.drawable.icon,
NotificationTicket, when);

Context context = getApplicationContext();

Intent notificationIntent = new Intent(this, ShopsOnMap.class);
PendingIntent contentIntent = PendingIntent.getActivity(this, 0,
notificationIntent, 0);

notification.setLatestEventInfo(context, NotificationTitle, NotificationContent, contentIntent); 
notificationManager.notify(NOTIFICATION_ID, notification);
notificationIntent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP| Intent.FLAG_ACTIVITY_SINGLE_TOP);

Answer 1

我遇到了同样的问题，然后意识到我没有在Manifest中宣布我的新活动。

<activity
        android:name=".YourActivityHere">
        </activity>

Answer 2

您需要为Intent设置操作和类别。

如果此活动不是应用程序的入口点：

Intent notificationIntent = new Intent(context, ShopsOnMap.class);
notificationIntent.setAction(Intent.ACTION_MAIN);
notificationIntent.addCategory(Intent.CATEGORY_LAUNCHER);
notificationIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);

PendingIntent myIntent = PendingIntent.getActivity(context, 0,notificationIntent, PendingIntent.FLAG_UPDATE_CURRENT);

如果是你的应用程序的入口点，你可以使用xml，就像它一样：

<activity
        android:name=".ShopsOnMap"
        android:theme="@android:style/Theme.NoTitleBar"
        android:windowSoftInputMode="adjustResize"
          android:configChanges="orientation"
        android:screenOrientation="portrait"
         >
        <intent-filter>
            <category android:name="android.intent.category.LAUNCHER" />

            <action android:name="android.intent.action.MAIN" />
        </intent-filter>
</activity>

所以，只需要添加它：

Intent notificationIntent = new Intent(context, ShopsOnMap.class);
notificationIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);

PendingIntent myIntent = PendingIntent.getActivity(context, 0,notificationIntent, PendingIntent.FLAG_UPDATE_CURRENT);

它对我有用。

Answer 3

现在我知道这个问题非常陈旧，但对我来说，解决方法是更改requestCode。显然，当requestCode为0时，它有时不起作用。它在一部手机上对我有用但在另一部手机上没有工作。

Answer 4

在评论中：我看不到您的代码有任何问题，并怀疑您的shopsonmap没有显示任何内容。我使用的代码下面的代码。

private void setNotifiy(){
    String ns = Context.NOTIFICATION_SERVICE;
    NotificationManager mNotificationManager = (NotificationManager) getSystemService(ns);

    int icon = R.drawable.notification_icon;//  R.drawable.notification_icon;
    CharSequence tickerText = "Tickertext goes here :) !";
    long when = System.currentTimeMillis();
    Context context = getApplicationContext();
    CharSequence contentTitle = "ThisIsYourTitle";
    CharSequence contentText = "some content goes here";

    Notification notification = new Notification(icon, tickerText, when);
    Intent notificationIntent = new Intent(this, MyClass.class);
    PendingIntent contentIntent = PendingIntent.getActivity(this, 0, notificationIntent, 0);    
    notification.flags = Notification.FLAG_AUTO_CANCEL;
    notification.setLatestEventInfo(context, contentTitle, contentText, contentIntent);
    mNotificationManager.notify(NOT_ID, notification);
}

如何在单击通知时启动活动？

4 个答案: