public class MainActivity extends ActionBarActivity {
public static final int REQUEST_CODE_ANOTHER = 1001;
TextView textView;
int resultCount = 0;
@Override
public void onCreate(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
textView = (TextView) findViewById(R.id.textView01);
Intent recivedIntent = getIntent();
resultCount = recivedIntent.getIntExtra("resultCount", 0);
textView.setText(resultCount + "로 변경되었습니다.");
}
public void Button1Clicked(View view){
Intent intent = new Intent(getApplicationContext(), AnotherActivity.class);
intent.putExtra("resultCount", resultCount);
startActivityForResult(intent, REQUEST_CODE_ANOTHER);
}
protected void onNewIntent(Intent intent){
Intent recivedIntent = getIntent();
resultCount = recivedIntent.getIntExtra("resultCount", 0);
textView.setText(resultCount + "로 변경되었습니다.");
}
}
public class AnotherActivity extends Activity {
int resultCount = 0;
public static final int REQUEST_CODE_ANOTHER = 1001;
@Override
public void onCreate(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.second);
Intent i = getIntent();
resultCount = i.getIntExtra("resultCount", 0);
resultCount++;
}
protected void onNewIntent(Intent intent){
Intent i = getIntent();
resultCount = i.getIntExtra("resultCount", 0);
resultCount++;
super.onNewIntent(i);
}
public void Button2Clicked(View view){
Intent intent = new Intent(getApplicationContext(), MainActivity.class);
intent.putExtra("resultCount", resultCount);
intent.setFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP);
startActivityForResult(intent, REQUEST_CODE_ANOTHER);
}
}
책에 flag부분 보고 공부하다가
책에 있는 코드로 하면 전달받는게 안되길래
제생각대로 코드짜봐서 resultCount가 1씩늘어나게는 성공했는데
이렇게하면 액티비티 스택에 AnotherActivity는 한개만 남아있고
다시 메인에서 AnotherActivity를 호출하면 AnotherActivity안에
onNewIntent()를 통해서 계속 변수가 저장되고있는 구조가 맞나요???
공부한지 얼마안됐는데 초반부터 머리가안돌아가네요ㅠㅠ