在我的应用中，Section作为一些片段的主机，MainActivity是默认的。
公交流程：fragmentA - ＆gt; fragmentA。
显示fragmentB时，通知会进入状态栏。我点击通知，fragmentB将会启动。
我想，按下后退按钮后，它会将我带回SecondActivity但重新创建fragmentB（MainActivity将会显示）。
以下是fragmentA方法：
sendNotification这是在清单中设置的。
public void sendNotification(Context context) {
// Creates an explicit intent for an Activity
Intent resultIntent = new Intent(context, SecondActivity.class);
// Creating a artifical activity stack for the notification activity
TaskStackBuilder stackBuilder = TaskStackBuilder.create(context);
stackBuilder.addParentStack(SecondActivity.class);
stackBuilder.addNextIntent(resultIntent);
// Pending intent to the notification manager
PendingIntent resultPending = stackBuilder
.getPendingIntent(0, PendingIntent.FLAG_UPDATE_CURRENT);
// Building the notification
NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(context)
.setSmallIcon(R.drawable.ic_launcher) // notification icon
.setContentTitle("I'm a simple notification")
.setContentText("I'm the text of the simple notification") // notification text
.setContentIntent(resultPending); // notification intent
// mId allows you to update the notification later on.
mNotificationManager.notify(10, mBuilder.build());
}
我还添加＆＃34; singleInstance launchMode＆＃34; <activity
android:name=".MainActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name=".SecondActivity">
<!-- Necessary to the task manager to know who is the parent activity, if you are developing API 16 or higher, you can use:
android:parentActivityName=".MainActivity" -->
<meta-data
android:name="android.support.PARENT_ACTIVITY"
android:value=".MainActivity" />
</activity>
。
我的代码有什么问题？提前谢谢。