[英]Android back-stack not being created from Notification PendingIntent
如果在遵循通知時應用程序不在內存中,我就會遇到問題。 不會創建backstack。 我按照開發人員指南按照步驟操作。 請告訴我我錯過的位,否則我將不得不通過我的HomeActivity
路由所有意圖,以便按照以下意圖手動創建backstack。
AndroidManifest.xml :
<activity
android:name=".activity.HomeActivity"
android:clearTaskOnLaunch="true"
android:configChanges="orientation|keyboard|keyboardHidden|screenSize"
android:icon="@drawable/actionbar_logo"
android:label="@string/activity_label_home"
android:launchMode="singleTask"
android:parentActivityName=".activity.Start"
android:windowSoftInputMode="stateAlwaysHidden" >
<meta-data
android:name="android.support.PARENT_ACTIVITY"
android:value=".activity.Start" />
<intent-filter>
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>
<activity
android:name=".activity.ChatActivity"
android:configChanges="orientation|keyboard|keyboardHidden|screenSize"
android:label="@string/activity_label_in_chat"
android:parentActivityName=".activity.HomeActivity"
android:windowSoftInputMode="stateHidden"
tools:ignore="UnusedAttribute" >
<meta-data
android:name="android.support.PARENT_ACTIVITY"
android:value=".activity.HomeActivity" />
<intent-filter>
<action android:name="android.intent.action.VIEW" />
<category android:name="android.intent.category.DEFAULT" />
<data android:mimeType="vnd.android.cursor.item/vnd.myapp.chat" />
</intent-filter>
</activity>
建築通知 :
final String chatId = cursor.getString(cursor.getColumnIndexOrThrow(MessageColumns.CHAT));
final Intent chat = new Intent(c, ChatActivity.class);
chat.putExtra(ChatActivity.EXTRA_CHAT_ID, chatId);
PendingIntent intent = TaskStackBuilder.create(c).addNextIntentWithParentStack (chat).getPendingIntent (0, PendingIntent.FLAG_UPDATE_CURRENT);
NotificationCompat.Builder builder = new NotificationCompat.Builder (c);
final NotificationManagerCompat nm = NotificationManagerCompat.from (c);
builder
.setSmallIcon (R.drawable.ic_stat_notification)
.setContentIntent (intent)
.setGroup (GROUP_KEY_MYAPP)
.setGroupSummary (true);
Notification notification = builder.build ();
nm.notify(NOTIFICATION_ID, notification);
從操作欄處理主頁點擊 :
public void onHomeActionDefault (final Activity baseActivity) {
Keyboard.close (baseActivity);
Intent upIntent = NavUtils.getParentActivityIntent (baseActivity);
if (null != upIntent) {
if (NavUtils.shouldUpRecreateTask (baseActivity, upIntent)) {
android.support.v4.app.TaskStackBuilder.create (baseActivity)
.addNextIntentWithParentStack (upIntent)
.startActivities ();
} else {
NavUtils.navigateUpTo (baseActivity, upIntent);
}
} else {
NavUtils.navigateUpFromSameTask (baseActivity);
}
}
這里有什么我想念的嗎?
事實證明,我需要為intent添加一個標志並使用應用程序上下文。 我不需要在目標類中的java中完全創建backstack,只需要在manifest.xml中。 所以我構建了這個小方法來為我正確且一致地構建待定意圖。
public static PendingIntent addBackStack(final Context context, final Intent intent) {
TaskStackBuilder stackBuilder = TaskStackBuilder.create (context.getApplicationContext ());
stackBuilder.addNextIntentWithParentStack (intent);
intent.addFlags (Intent.FLAG_ACTIVITY_NEW_TASK);
return stackBuilder.getPendingIntent (0,PendingIntent.FLAG_UPDATE_CURRENT);
}
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