我创建了一个活动。我在清单文件中将启动模式设置为singleTask。我不希望启动同一活动的多个实例。我在点击另一个活动的按钮时吃午饭。
如果我多次单击该按钮,则由于我已将该活动设置为单个任务,因此如果该活动已在运行,则不会发生任何事情。但我想在不创建另一个实例的情况下重新启动活动。如何实现这一点。
Thanks Deepak
我创建了一个活动。我在清单文件中将启动模式设置为singleTask。我不希望启动同一活动的多个实例。我在点击另一个活动的按钮时吃午饭。
如果我多次单击该按钮,则由于我已将该活动设置为单个任务,因此如果该活动已在运行,则不会发生任何事情。但我想在不创建另一个实例的情况下重新启动活动。如何实现这一点。
Thanks Deepak
But I want to relaunch the activity without creating another instance
你的意思是我在没有创建的情况下重新启动。我认为您可能已经在onCreate
中放置了一组代码,并且希望在活动再次获得控制权时运行。如果是这样,最好将该代码放在Resume上的或NewIntent上的
中
。因为单个任务的onCreate只执行一次
singleTask
The system creates the activity at the root of a new task and routes the intent to it. However, if an instance of the activity already exists, the system routes the intent to existing instance through a call to its onNewIntent() method, rather than creating a new one.
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