Application class

I try Application class on Android.




This is Application class. It is Saving int value.

public class TestApplication extends Application {
public class TestApp extends Application {
 private int _number = 0;
 @Override
    public void onCreate() {
  Log.d("test", "onCreate");
 }
    @Override
    public void onTerminate() {
  Log.d("test", "onTerminate");
    }
    public void setNumber(int number){
  Log.d("test", "setNumber");
     _number = number;
    }
    public int getNumber(){
  Log.d("test", "getNumber");
     return _number;
    }

}

This is Setter Activity for application class.

_testApp = (TestApp) this.getApplication();

_testApp.setNumber(8);
Log.d("test", "Number = "+ _testApp.getNumber());

And wake up getter Activity.

Intent intent = new Intent();
intent.setClass(this, TesterActivity.class);
startActivity(intent);

This is getter Activity.

_testApp = (TestApp) this.getApplication();

Log.d("test", "Tester Number = "+ _testApp.getNumber());

This application Log:

onCreate
setNumber
getNumber
Number = 8
getNumber
Tester Number = 8

I must change Android Manifest.xml
source code is here.