Shulou(Shulou.com)06/02 Report--

This article introduces the knowledge of "how to get Activity started in a new task". Many people will encounter this dilemma in the operation of actual cases, so let the editor lead you to learn how to deal with these situations. I hope you can read it carefully and be able to achieve something!

Although SubActivity's launchMode is set to "singleTask" mode, it is not as described in the official documentation:

The system creates a new task and instantiates the activity at the root of the new task.

Instead, it starts in a task that has the same taskAffinity as it, and is at the top of the stack for that task

So, in the previous figure, an arrow with the label "singleTask" points to Activity Y at the top of a task stack.

So, is there any way to get a "singleTask" Activity to start in a new task? The answer is yes. From the above code analysis, as long as we can enter the if statement of the function startActivityUncheckedLocked:

[java] view plaincopy if (r.resultTo = = null & &! addingToTask & & (launchFlags&Intent.FLAG_ACTIVITY_NEW_TASK)! = 0) {/ / todo: should do better management of integers. That's all for mService.mCurTask++; if (mService.mCurTask android:label= "@ string/app_name" android:taskAffinity= "shy.luo.task.main.activity" android:label= "@ string/sub_activity" android:launchMode= "singleTask" android:taskAffinity= "shy.luo.task.sub.activity" > "how to get Activity started in a new task". Thank you for reading. If you want to know more about the industry, you can follow the website, the editor will output more high-quality practical articles for you!

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