Activty: Four startup modes, and activty:

Activty: Four startup modes, and activty:

Activty supports four startup modes. LaunchMode:

Standard: each time a new activity window is started (new Operation)

SingleTop: if it is a target activity at the top of the stack, It will be opened directly. Otherwise, a new activity window (new) will be opened ).

SingleTask and singleInstance are basically the same. The difference is that if the root activity is set to singleTask, the enabled activity is also in the same task, that is, the taskId is the same .. If the root activity is set to singleInstance, the activated activity is in the new task, that is, there is only one activity in the stack, and the taskid is different .. The rest is the same.