Question

我有两项活动，ChatActivity和ChatOneActivity

我想在ChatActivity中构建通知，当我按下通知时，我发现调用了onDestroy()方法。为什么？我可以理解为什么调用onStop方法，因为视图不再可见。但onDestroy()？为什么？我没有完成ChatActivity！

我该如何预防？我只是希望调用onStop方法，我不希望活动被杀死。

以下是我如何构建通知

private void showNotification(String id, String message) {
    NotificationCompat.Builder builder = new NotificationCompat.Builder(
            getApplicationContext())
            .setSmallIcon(android.R.drawable.sym_action_email)
            .setContentTitle("You have a new message")
            .setContentText(message);
    Intent intent = new Intent(ChatActivity.this, ChatOneActivity.class);
    intent.putExtra("toId", id);
    TaskStackBuilder stackBuilder = TaskStackBuilder
            .create(ChatActivity.this);
    stackBuilder.addParentStack(ChatOneActivity.class);
    stackBuilder.addNextIntent(intent);
    PendingIntent pendingIntent = stackBuilder.getPendingIntent(0,
            PendingIntent.FLAG_CANCEL_CURRENT);

    builder.setContentIntent(pendingIntent);
    NotificationManager mNotificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
    mNotificationManager.notify(1, builder.build());
}

还有我的清单

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.webmobilegroupchat"
android:versionCode="1"
android:versionName="1.0" >

<uses-sdk
    android:minSdkVersion="11"
    android:targetSdkVersion="16" />

<uses-permission android:name="android.permission.INTERNET" />

<application
    android:allowBackup="true"
    android:icon="@drawable/ic_launcher"
    android:label="@string/app_name"
    android:theme="@style/AppTheme" >
    <activity
        android:name="com.example.webmobilegroupchat.MainActivity"
        android:label="@string/app_name" >
    </activity>
    <activity
        android:name="com.example.webmobilegroupchat.ChatActivity"
        android:label="@string/title_activity_chat" >
    </activity>
    <activity
        android:name="com.example.webmobilegroupchat.ChatOneActivity"
        android:label="@string/title_activity_chat_one" >
        <meta-data
            android:name="android.support.PARENT_ACTIVITY"
            android:value="com.example.webmobilegroupchat.ChatActivity" />
    </activity>
    <activity
        android:name="com.example.webmobilegroupchat.SplashActivity"
        android:label="@string/title_activity_splash" >
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />

            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>
</application>

Answer 1

因为您调用了此代码：

TaskStackBuilder stackBuilder = TaskStackBuilder.create(ChatActivity.this);
stackBuilder.addParentStack(ChatOneActivity.class);
stackBuilder.addNextIntent(intent);
PendingIntent pendingIntent = stackBuilder.getPendingIntent(0,PendingIntent.FLAG_CANCEL_CURRENT);

TaskStackBuilder.create将返回一个新的TaskStackBuilder，用于启动由一系列活动组成的新任务堆栈。

用这样的常规pendingintent替换它们解决了它：

PendingIntent pendingIntent = PendingIntent.getActivity(context, (int)System.currentTimeMillis(), intent, PendingIntent.FLAG_UPDATE_CURRENT);

为什么在我开始通知时会调用onDestroy（）？怎么预防呢？

1 个答案: