Android Activity XML configuration

<Activity 
    Android: name = "xxxActivity" 
    Android: configChanges = "Keyboard | keyboardHidden | Orientation | screenSize" 
    Android: launchMode = "singleTask"> 


of VALUE the DESCRIPTION 
 "mcc" international mobile subscriber identity code is changed Country ---- - sim is detected, and to update mcc mcc mobile users country code 
"mnc" mobile network international mobile subscriber identity number is changed ------ sim is detected, and to update mnc MNC mobile network number, of up to two digits, identifying the mobile subscriber belongs to a mobile communication network 
"locale" ----- address has changed the user selects a new language is displayed 
"touchscreen" touch screen is changed - ----- usually is not going to happen 
"keyboard" keyboard has changed ---- for example, a user with an external keyboard 
"keyboardHidden"Keyboard usability changed
"navigation" navigation has changed ----- usually does not happen 
"screenLayout" screen display changes ------ different display is activated 
"fontScale" font selection ratio has changed ---- different global font 
"uiMode" user mode has changed 
"orientation" to change the screen orientation 
"screenSize" screen size change the 
physical size of the "smallestScreenSize" the screen changes, such as: a connection to an external screen