나는 새로운 활동에 어떤 행동도 할 수 없다.

Question

나는 안드로이드를 처음 사용하고있다. 나는 당신에게 몇 가지 질문을하고 싶다.

내가 명령에 의해 주요 활동에서 새로운 활동을 호출 할 때

Intent myIntent = new Intent(v.getContext(), PolarView.class); 
//startActivityForResult(myIntent, 0); 
startActivityForResult(myIntent, 0); 
finish(); 

후 새로운 활동에 내가 어떤 행동을 할 수 없어, 예를 들어, 이러한 버튼 클릭과 같은

모두

Button btnSeven = (Button) this.findViewById(R.id.btn7); 
    btnSeven.setOnClickListener(new View.OnClickListener() { 

     public void onClick(View v) { 
      InputStr = InputStr + "7"; 
     InputViewField.setText(InputStr); 

     } 
    }); 
} 

및

public void btn7_click(View v) { 
     InputStr = InputStr + "7"; 
     InputViewField.setText(InputStr); 
} 

정의 로이드를 갖는의 onclick = "btn7_click"를 InputViewField가에서는 글고 객체

이다 activity`s 레이아웃 에 첫 번째 사례의 새 활동이 시작되지 않고 두 번째 사례에서이 버튼을 누르면 응용 프로그램 충돌이 발생합니다.

저를 도와주세요. 여기

은 변경 후 로그 캣의 일부 마지막 평화

StartActivityForResult() 

로그 캣

StartActivity() 

에 :

이

D/MediaScanner( 153): opendir /system/media/ failed, errno: 2 
D/MediaScanner( 153): prescan time: 25225ms 
D/MediaScanner( 153):  scan time: 162ms 
D/MediaScanner( 153): postscan time: 48ms 
D/dalvikvm( 109): GC freed 1920 objects/95640 bytes in 160ms 
D/MediaScanner( 153): total time: 25435ms 
D/MediaScannerService( 153): done scanning volume internal 
D/MediaScannerService( 153): start scanning volume external 
D/dalvikvm( 52): GREF has increased to 301 
I/ActivityManager( 52): Starting activity: Intent { cmp=complex.ComplexCalc/.PolarView } 
I/ActivityManager( 52): Displayed activity complex.ComplexCalc/.PolarView: 1414 ms (total 1414 ms) 
V/MediaScanner( 153): pruneDeadThumbnailFiles... android.database.sqlite.SQLiteCursor@43bc30b8 
V/MediaScanner( 153): /pruneDeadThumbnailFiles... android.database.sqlite.SQLiteCursor@43bc30b8 
D/MediaScanner( 153): prescan time: 1509ms 
D/MediaScanner( 153):  scan time: 405ms 
D/MediaScanner( 153): postscan time: 323ms 
D/MediaScanner( 153): total time: 2237ms 
D/MediaScannerService( 153): done scanning volume external 
D/AndroidRuntime( 223): Shutting down VM 
W/dalvikvm( 223): threadid=3: thread exiting with uncaught exception (group=0x4001b188) 
E/AndroidRuntime( 223): Uncaught handler: thread main exiting due to uncaught exception 
D/dalvikvm( 223): GC freed 3456 objects/221888 bytes in 153ms 
E/AndroidRuntime( 223): java.lang.IllegalStateException: Could not execute method of the activity 
E/AndroidRuntime( 223): at android.view.View$1.onClick(View.java:2031) 
E/AndroidRuntime( 223): at android.view.View.performClick(View.java:2364) 
E/AndroidRuntime( 223): at android.view.View.onTouchEvent(View.java:4179) 
E/AndroidRuntime( 223): at android.widget.TextView.onTouchEvent(TextView.java:6541) 
E/AndroidRuntime( 223): at android.view.View.dispatchTouchEvent(View.java:3709) 
E/AndroidRuntime( 223): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:884) 
E/AndroidRuntime( 223): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:884) 
E/AndroidRuntime( 223): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:884) 
E/AndroidRuntime( 223): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:884) 
E/AndroidRuntime( 223): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:884) 
E/AndroidRuntime( 223): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:884) 
E/AndroidRuntime( 223): at com.android.internal.policy.impl.PhoneWindow$DecorView.superDispatchTouchEvent(PhoneWindow.java:1659) 
E/AndroidRuntime( 223): at com.android.internal.policy.impl.PhoneWindow.superDispatchTouchEvent(PhoneWindow.java:1107) 
E/AndroidRuntime( 223): at android.app.Activity.dispatchTouchEvent(Activity.java:2061) 
E/AndroidRuntime( 223): at com.android.internal.policy.impl.PhoneWindow$DecorView.dispatchTouchEvent(PhoneWindow.java:1643) 
E/AndroidRuntime( 223): at android.view.ViewRoot.handleMessage(ViewRoot.java:1691) 
E/AndroidRuntime( 223): at android.os.Handler.dispatchMessage(Handler.java:99) 
E/AndroidRuntime( 223): at android.os.Looper.loop(Looper.java:123) 
E/AndroidRuntime( 223): at android.app.ActivityThread.main(ActivityThread.java:4363) 
E/AndroidRuntime( 223): at java.lang.reflect.Method.invokeNative(Native Method) 
E/AndroidRuntime( 223): at java.lang.reflect.Method.invoke(Method.java:521) 
E/AndroidRuntime( 223): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:860) 
E/AndroidRuntime( 223): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:618) 
E/AndroidRuntime( 223): at dalvik.system.NativeStart.main(Native Method) 
E/AndroidRuntime( 223): Caused by: java.lang.reflect.InvocationTargetException 
E/AndroidRuntime( 223): at complex.ComplexCalc.PolarView.btn7_click(PolarView.java:266) 
E/AndroidRuntime( 223): at java.lang.reflect.Method.invokeNative(Native Method) 
E/AndroidRuntime( 223): at java.lang.reflect.Method.invoke(Method.java:521) 
E/AndroidRuntime( 223): at android.view.View$1.onClick(View.java:2026) 
E/AndroidRuntime( 223): ... 23 more 
E/AndroidRuntime( 223): Caused by: java.lang.NullPointerException 
E/AndroidRuntime( 223): ... 27 more 
I/Process ( 52): Sending signal. PID: 223 SIG: 3 
I/dalvikvm( 223): threadid=7: reacting to signal 3 
I/dalvikvm( 223): Wrote stack trace to '/data/anr/traces.txt' 
I/ARMAssembler( 52): generated scanline__00000077:03515104_00000000_00000000 [ 33 ipp] (47 ins) at [0x46eae8:0x46eba4] in 1562593 ns 
I/ARMAssembler( 52): generated scanline__00000177:03515104_00001001_00000000 [ 91 ipp] (114 ins) at [0x46eba8:0x46ed70] in 1903198 ns 
I/Process ( 223): Sending signal. PID: 223 SIG: 9 
I/ActivityManager( 52): Process complex.ComplexCalc (pid 223) has died. 
I/WindowManager( 52): WIN DEATH: Window{43cc3920 complex.ComplexCalc/complex.ComplexCalc.PolarView paused=false} 
E/gralloc ( 52): [unregister] handle 0x481778 still locked (state=40000001) 
I/UsageStats( 52): Unexpected resume of com.android.launcher while already resumed in complex.ComplexCalc 
W/InputManagerService( 52): Got RemoteException sending setActive(false) notification to pid 223 uid 10024 

Answer 1

내가 문제의 부분은 당신이에 startActivityForResult를 (사용하고 있는지 생각 ..), 실제로 startActivity (..)를 사용해야 할 때, 새로운 액티비티가 아무것도 돌려 줬어.

그러나 오류 로그 없이는 실제 상황을 알리기가 어렵습니다.