source code :https://github.com/fantasyRqg/MytestApp/tree/AndroidLaunchModeTest

以下文字摘自?

• Tasks and Back Stack

主要解釋關于?FLAG_ACTIVITY_NEW_TASK?和 singleTask 的特性

When the intent that launches an activity contains the?FLAG_ACTIVITY_NEW_TASK?flag.

A new activity is, by default, launched into the task of the activity that called?startActivity(). It's pushed onto the same back stack as the caller. However, if the intent passed to?startActivity()?contains theFLAG_ACTIVITY_NEW_TASK?flag, the system looks for a different task to house the new activity. Often, it's a new task. However, it doesn't have to be. If there's already an existing task with the same affinity as the new activity, the activity is launched into that task. If not, it begins a new task.

轉載于:https://www.cnblogs.com/fantasy-es/p/4685587.html

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