Enable animation for android apps

Enable animation for android apps
For example, if A. java enables an animation, it then enters B. java.

1. A. java

Protected void onCreate (Bundle savedInstanceState ){
Super. onCreate (savedInstanceState );
Log. I ("START Animation", "Start Animation ");
// Remove the title
RequestWindowFeature (Window. FEATURE_NO_TITLE );
// Set full screen
GetWindow (). setFlags (WindowManager. LayoutParams. FLAG_FULLSCREEN,
WindowManager. LayoutParams. FLAG_FULLSCREEN );

SetContentView (R. layout. activity_start );
// Specifies the animation duration.
New Handler (). postDelayed (new Runnable (){

@ Override
Public void run (){
// TODO Auto-generated method stub
Intent intent = new Intent (StartActivity. this,
MainActivity. class );
StartActivityForResult (intent, 10 );


}
}, 1000*2 );
}



@ Override
Protected void onActivityResult (int requestCode, int resultCode, Intent data ){
// TODO Auto-generated method stub
Log. I ("StartActivity + returned data", requestCode + "");
Super. onActivityResult (requestCode, resultCode, data );
If (resultCode = 20 ){
Finish ();
}
}

2. B. java

@ Override
Protected void onCreate (Bundle savedInstanceState ){
Super. onCreate (savedInstanceState );
// Set the response so that StartActivity () closes itself
SetResult (20 );
SetContentView (R. layout. activity_main );



}

// Explanation

1. new Handler (). postDelayed (new Runnable (){...}

Delay intent jump

2. startActivityForResult (intent, 10 );

Parameter: (Intent intent, Int requestCode)

RequestCode is used for later destruction.

3. onActivityResult (int requestCode, int resultCode, Intent data ){

ResultCode: indicates the data returned by B. java. When B. java is started, data is sent.

A. java destroys data by itself.

4. setResult (20 );

B. Data Set in java returned to A. java. A. java destroys the data by itself.