问题描述
该服务创建一个持久通知并通过 PendingIntent 开始对点击的主要活动。这里是code。
The service creates a persistent Notification and starts the main activity on click via PendingIntent. Here is the code.
Intent notificationIntent = new Intent(getApplicationContext(), ViewPagerActivity.class);
PendingIntent pendingIntent = PendingIntent.getActivity(StreamingService.this, 0, notificationIntent, 0);
但是，如果的主要活动启动当我preSS通知，则将启动再次，然后再和......
However, if the main activity is started when I press notification, it will be started again, and again and...
在最后，我也有同样的活性起球了，一个在另一个上面。我可以用pressing后退按钮，这将杀死的主要活动一次，然后让我回到相同的活动，直到我结束最后一个看到这一点。
In the end, I have the same activity pilled up, one on the top of another. I can see this by pressing the back button, which will kill the Main activity once and then get me back to the same activity until I close the last one.
我怎么能prevent这种情况发生？可 PendingIntent 检测瞄准活动运行，因此它不会再次创建相同的活动，而是开始运行的一个？
How can I prevent this to happen? Can PendingIntent detect that aiming activity is running so it does not create the same activity again, but rather start the running one?
PS。我道歉，如果不能够说明这一点。如果是这样的话，让我知道，我会重组的问题。
PS. I apologize if not being able to explain this well. If this is the case, let me know and I will rephrase the problem.
推荐答案
根据要实现的具体行为，你可以通过这些标志之一，因为getActivity（）的最后一个参数：
Depending on the exact behaviour you want to implement, you could pass one of these flags as the last param of getActivity():
- FLAG_ACTIVITY_REORDER_TO_FRONT
- FLAG_ACTIVITY_SINGLE_TOP
- FLAG_ACTIVITY_REORDER_TO_FRONT
- FLAG_ACTIVITY_SINGLE_TOP
这篇关于prevent通知PendingIntent启动活动已经开始了吗？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！