Android learning-how to disable all activities

Activity declaration cycle
Method 1
We know that the window class of Android provides a historical stack, and we can implement it skillfully through the stack principle. Here we add the intent icon directly to window a when window a opens window B. flag_activity_clear_top. When B is enabled, all activities in the process space are cleared.

Use the followingCodeCall window B
Java code

Intent intent = new intent ();
Intent. setclass (android123.this, cwj. Class );
Intent. setflags (intent. flag_activity_clear_top); // pay attention to the flag settings of the row.
Startactivity (intent)

 

Method 2:

Write in the call exit Method

Myapplication. getinstance (). Exit ();

Public class myapplication extends application {

Private list <activity> activitylist = new shortlist <activity> ();
Private Static myapplication instance;

Private myapplication (){
}

// Obtain the unique myapplication instance in singleton Mode
Public static myapplication getinstance (){
If (null = instance ){
Instance = new myapplication ();
}
Return instance;

}

// Add the activity to the container
Public void addactivity (activity) {
activitylist. add (activity);
}

// traverse all the activities and finish
/*
* in each activity in the oncreate method, add the activity to the container of the myapplication object instance
* myapplication. getinstance (). addactivity (this );
* call the exit method when you want to end all activities.
*
* myapplication. getinstance (). exit ();
*/
Public void exit () {

For (activity: activitylist ){
Activity. Finish ();
}

System. Exit (0 );

}