Android-Boot mode (singletop boot mode)

Understand the standard startup mode, is to use the task stack, advanced after out, LIFO mode to start, the following we look at another singletop boot mode.

1, we look at the picture, this page I added 2 buttons, sub-table to a page and B page, first look at a, our taskid=18, example =*f648

2, click "Jump a Page activity", found that, no change, the instance or *f648

3, we click "Jump B page Activity", taskid=18, example =*54F0, the new student has become an example.

4, we then click "Jump a Page activity", the instance changed, and our 2nd Step example is not the same, became *8A50

5, in more than a few times "jump a page activity", the instance is still *8a50

Is there any discovery, the activity of page A here is set to Singletop startup mode, if the activity instance that is currently going to jump is at the top of the stack, then no new instances will be created for the current instance .

Configuring startup Mode

Android-Boot mode (singletop boot mode)