01.public class GameActivity extends Activity
02.{
03. GameView gameview;
04. private boolean f_Pause = false;
05. private boolean f_Resume = false;
06. public void onCreate(Bundle savedInstanceState) {
07.  super.onCreate(savedInstanceState);
08.    
09.  requestWindowFeature(Window.FEATURE_NO_TITLE);
10.     getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);
11.       
12.  setContentView(R.layout.game);
13.  /*
14.  MediaPlayer player = MediaPlayer.create(this, R.raw.play);
15.  player.setVolume(0.8f, 0.8f);
16.  player.setLooping(true);
17.  player.start();
18.  */
19.    
20. }
21.   
22. @Override
23. public void onDestroy() {
24.  if(f_Pause)
25.   ;
26.  else
27.   super.onDestroy();
28. }
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01.@Override
02.public void onResume() {
03. if(f_Pause)
04. {
05.  f_Pause = false;
06.  gameview.resumeGame();
07. }
08. super.onResume();
09.}
10.@Override
11.public void onPause() {
12. f_Pause = true;
13. gameview.pauseGame();
14. super.onPause();
15.}
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1.static class GameView extends SurfaceView implements Callback, Runnable {
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1. 

 

 

Activity안에 SurfaceView를 두고 코딩중입니다. 이 Activity가 실행되면 gameview가 활성화 되고,

 

다시 홈버튼이나 뒤로가기를 누르게 될경우 프로그램이 종료되면서

 

순서대로 onPause() -> onDestroy() 가 발생하게 되는데요.

 

제가 구현하고 싶은부분은 onPause() 가 호출될때 f_Pause = true로 하여 Pause 상태가 되었다고 표시를 하고,

 

View에서의 객체에서 pauseGame() 으로 View에서의 스레드를 멈춰주는 메소드를 호출한후에,

 

Destory()가 호출되면 Activity가 사라지지않고 백그라운드에 두고 다시 게임을 켯을때 Resume 처리를 해주고 싶습니다.

 

이 방식대로 하게되면 NullPointerError 가 나는데 어떻게 구현해야 할까요?

 

 

Log 내역입니다.

 

11-09 12:39:13.153: ERROR/AndroidRuntime(335): FATAL EXCEPTION: main
11-09 12:39:13.153: ERROR/AndroidRuntime(335): java.lang.RuntimeException: Unable to pause activity {com.android.game/com.android.game.GameActivity}: java.lang.NullPointerException
11-09 12:39:13.153: ERROR/AndroidRuntime(335):     at android.app.ActivityThread.performPauseActivity(ActivityThread.java:2329)
11-09 12:39:13.153: ERROR/AndroidRuntime(335):     at android.app.ActivityThread.performPauseActivity(ActivityThread.java:2286)
11-09 12:39:13.153: ERROR/AndroidRuntime(335):     at android.app.ActivityThread.handlePauseActivity(ActivityThread.java:2266)
11-09 12:39:13.153: ERROR/AndroidRuntime(335):     at android.app.ActivityThread.access$1700(ActivityThread.java:117)
11-09 12:39:13.153: ERROR/AndroidRuntime(335):     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:939)
11-09 12:39:13.153: ERROR/AndroidRuntime(335):     at android.os.Handler.dispatchMessage(Handler.java:99)
11-09 12:39:13.153: ERROR/AndroidRuntime(335):     at android.os.Looper.loop(Looper.java:123)
11-09 12:39:13.153: ERROR/AndroidRuntime(335):     at android.app.ActivityThread.main(ActivityThread.java:3647)
11-09 12:39:13.153: ERROR/AndroidRuntime(335):     at java.lang.reflect.Method.invokeNative(Native Method)
11-09 12:39:13.153: ERROR/AndroidRuntime(335):     at java.lang.reflect.Method.invoke(Method.java:507)
11-09 12:39:13.153: ERROR/AndroidRuntime(335):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839)
11-09 12:39:13.153: ERROR/AndroidRuntime(335):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597)
11-09 12:39:13.153: ERROR/AndroidRuntime(335):     at dalvik.system.NativeStart.main(Native Method)
11-09 12:39:13.153: ERROR/AndroidRuntime(335): Caused by: java.lang.NullPointerException
11-09 12:39:13.153: ERROR/AndroidRuntime(335):     at com.android.game.GameActivity.onPause(GameActivity.java:84)
11-09 12:39:13.153: ERROR/AndroidRuntime(335):     at android.app.Activity.performPause(Activity.java:3853)
11-09 12:39:13.153: ERROR/AndroidRuntime(335):     at android.app.Instrumentation.callActivityOnPause(Instrumentation.java:1190)
11-09 12:39:13.153: ERROR/AndroidRuntime(335):     at android.app.ActivityThread.performPauseActivity(ActivityThread.java:2316)

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