我想使用 TaskStackBuilder ，并通知制造的背堆栈背按钮来通过。我的应用程序的正常流动：

I'm trying to use TaskStackBuilder with notifications to create a back stack for the back button to go through. Normal flow of my app:

有时候，当用户没有使用我的应用背景更新后，我生成通知。如果他们点击此通知，它启动活动C，跳过A和B.我想遵循的设计指南，并创建一个回栈，所以当他们preSS回到它会在主屏幕到活动B代替。我的问题是，活动B需要在其推出的意图额外的告诉它怎么从数据库中抓取。

Sometimes, after a background update when the user isn't using my app, I generate a notification. If they click this notification, it launches Activity C, skipping A and B. I'm trying to follow the design guidelines and create a back stack, so when they press back it will go to Activity B instead of the home screen. My problem is that Activity B requires an extra in its launch intent to tell it what to grab from the database.

我目前TaskStackBuilder code：

My current TaskStackBuilder code:

TaskStackBuilder sBuilder = TaskStackBuilder.create( this );
sBuilder.addParentStack( ActivityC.class );
sBuilder.addNextIntent( launchIntent );

pIntent = sBuilder.getPendingIntent( 0, PendingIntent.FLAG_ONE_SHOT );

点击该通知将启动活动Ç就好了，但是当我preSS回它与抛出：IllegalArgumentException 从我的ContentProvider，因为活动B不知道爆炸是什么ID请求。有没有什么办法让这个额外的入后堆栈还是我停留？

Clicking on the notification launches Activity C just fine, but when I press back it explodes with an IllegalArgumentException from my ContentProvider because Activity B doesn't know what ID to request. Is there any way to get this extra into the back stack or am I stuck?

推荐答案

这行：

sBuilder.addParentStack( ActivityC.class );

增加了 ActivityC 宣布所有的父母在的Andr​​oidManifest.xml 在＆LT;荟萃数据＆GT; 。我不知道它是什么，我没有用它。我怀疑你需要它。

adds all parents declared for ActivityC in AndroidManifest.xml in <meta-data>. I don't know what it is, I haven't used it. I doubt you need it.

这行添加意图数组：

sBuilder.addNextIntent(launchIntent);

则意图的阵列用于创建PendingIntent，可能与PendingIntent.getActivities,我找不到执行，然后在某处开始Context.startActivities.

then the array of intents is used to create PendingIntent, probably with PendingIntent.getActivities, I couldn't find the implementation, which is then started somewhere with Context.startActivities.

我觉得你只需要创建设置意图，有你可以添加额外的：

I think you just need to create set of intents, there you can add extras:

Intent activityA = new Intent(context, ActivityA.class);
activityA.putExtra(key, valueA);
Intent activityB = new Intent(context, ActivityB.class);
activityB.putExtra(key, valueB);
Intent activityC = new Intent(context, ActivityC.class);
activityC.putExtra(key, valueC);

和它们添加到生成器：

sBuilder.addNextIntent(activityA);
sBuilder.addNextIntent(activityB);
sBuilder.addNextIntent(activityC);
pIntent = sBuilder.getPendingIntent( 0, PendingIntent.FLAG_ONE_SHOT );

我没有测试过，这是我快速的研究只是一个结果，我希望有人会纠正我，如果我错了。

I haven't tested it, this is only a result of my fast research, I hope someone will correct me if I'm wrong.