"Original" Logcat information demo activity life cycle

The interface is as follows: Note: This is in the phone, vertical screen state!

(i) 1 activity

/**
* 7 Methods
* Test the life cycle of 1 activity
*
* LogCat:
* 1.
* After startup: Call the following 3 methods in turn
* OnCreate
* OnStart
* Onresume
*
* Press the phone or simulator back button:
* OnPause
* OnStop
* OnDestroy
*
* 2.
* After startup: Call the following 3 methods in turn
* OnCreate
* OnStart
* Onresume
*
* Press the Phone home button:
* OnPause
* OnStop
*
* Then follow the procedure to enter:
* Onrestart
* OnStart
* Onresume
*
* Then press to return:
* OnPause
* OnStop
* Ondestory
*
* Press the Back button to exit the program, the program enters activity is shut down, the background continues to run
* Finish () method, let the program enter progress is killed, kill the process, the background is no longer running
* Press the back key and the finish () Method 2 ways, the activity life cycle is the same!
*
*/

(ii) 2 activity

/**
* LogCat:
* (i) only 7 methods are written in mainactivity
* 1.
* After startup: Call the following 3 methods in turn
* OnCreate
* OnStart
* Onresume
*
* Press to jump to the next screen:
* OnPause
* Grow Heap (frag case) to 13.002MB for 782816-byte allocation
* Grow Heap (frag case) to 15.932MB for 3131216-byte allocation
* OnStop
*
* Press the Back button: then go to run
* Onrestart
* OnStart
* Onresume
*
* Then press to return:
* OnPause
* OnStop
* Ondestory
*
*
* 2.
* After startup: Call the following 3 methods in turn
* OnCreate
* OnStart
* Onresume
*
* Press to jump to the next screen:
* OnPause
* Grow Heap (frag case) to 13.002MB for 782816-byte allocation
* Grow Heap (frag case) to 15.932MB for 3131216-byte allocation
* OnStop
*
* Press "Back to upper Interface": Then go to run
* OnCreate
* OnStart
* Onresume
*
* Then press to return:
* OnPause
* OnStop
* Ondestory
*
* Note: Call OnCreate to rebuild mainactivity after pressing "back to upper interface"
* Onrestart is called after pressing the back button, restart Mainactivity
*
* Here mainactivity and otheractivity relationship can be understood as the stack space--mainactivity first Enter and then exit,
* Otheractivity after otheractivity to exit before it is entered.
*
* (ii) write 7 methods in both Mainactivity and otheractivity
* 1.
* After startup: Call the following 3 methods in turn
* A.oncreate
* A.onstart
* A.onresume
*
* Press to jump to the next screen:
* A.onpause
* B.oncreate
* B.onstart
* B.onresume
* A.onstop
*
* Press the Back button: then go to run
* B.onpause
* A.onrestart
* A.onstart
* A.onresume
* B.onstop
* B.ondestroy
*
* Then press to return:
* A.onpause
* A.onstop
* A.ondestory
*
*
* 2.
* After startup: Call the following 3 methods in turn
* A.oncreate
* A.onstart
* A.onresume
*
* Press to jump to the next screen:
* A.onpause
* B.oncreate
* B.onstart
* B.onresume
* A.onstop
*
* Press "Back to upper Interface": Then go to run
* B.onpause
* A.oncreate
* A.onstart
* A.onresume
* B.onstop
*
* Then press to return:
* A.onpause
* B.onrestart
* B.onstart
* B.onresume
* A.onstop
* A.ondestory
*
* Then press to return:
* B.onpause
* A.onrestart
* A.onstart
* A.onresume
* B.onstop
* B.ondestroy
*
* Then press to return:
* A.onpause
* A.onstop
* A.ondestroy
*
*
* 3.
* After startup: Call the following 3 methods in turn
* A.oncreate
* A.onstart
* A.onresume
*
* Press to jump to the next screen:
* A.onpause
* B.oncreate
* B.onstart
* B.onresume
* A.onstop
*
* Press the Exit button in the Other.xml
* B.onpause
* A.onrestart
* A.onstart
* A.onresume
* B.onstop
* B.ondestroy
*
* Return to the Activity_main.xml interface and press the exit program
* A.onpause
* A.onstop
* A.ondestroy
*
*/

"Original" Logcat information demo activity life cycle