프래그먼트를 사용하는 대화 상자에 오류가 표시됩니다.

Question

Android에서 DialogFragment를 구현하기 시작했으며 다른 Java 파일과 함께 여기에 게시하는 중 오류가 발생하여 멈추었습니다.

오류 :

여기

 FATAL EXCEPTION: main 
Process: com.example.cisystem3.dialogfragment, PID: 3519 
android.util.AndroidRuntimeException: requestFeature() must be called before adding contentvat com.android.internal.policy.impl.PhoneWindow.requestFeature(PhoneWindow.java:302)                       at com.android.internal.app.AlertController.installContent(AlertController.java:233) 
at android.app.AlertDialog.onCreate(AlertDialog.java:356) 
    at android.app.Dialog.dispatchOnCreate(Dialog.java:373) 
    at android.app.Dialog.show(Dialog.java:274) 
at android.app.DialogFragment.onStart(DialogFragment.java:490) 
at android.app.Fragment.performStart(Fragment.java:2077) 
at android.app.FragmentManagerImpl.moveToState(FragmentManager.java:922) 
at android.app.FragmentManagerImpl.moveToState(FragmentManager.java:1067) 
at android.app.BackStackRecord.run(BackStackRecord.java:834) 
at android.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:1452) 
    at android.app.FragmentManagerImpl$1.run(FragmentManager.java:447) 
    at android.os.Handler.handleCallback(Handler.java:739) 
at android.os.Handler.dispatchMessage(Handler.java:95) 
at android.os.Looper.loop(Looper.java:135) 
at android.app.ActivityThread.main(ActivityThread.java:5254) 
at java.lang.reflect.Method.invoke(Native Method) 
at java.lang.reflect.Method.invoke(Method.java:372) 
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:903) 
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:698) 

내 DialogFragment이 onCreateDialog 방법

@Override 
    public Dialog onCreateDialog(Bundle savedInstanceState) { 

     AlertDialog.Builder builder = new AlertDialog.Builder(getActivity()); 
     builder.setTitle("My Dialog Box"); 
     builder.setMessage("Do you like this dialog"); 
     builder.setNegativeButton("No", new DialogInterface.OnClickListener() { 
      @Override 
      public void onClick(DialogInterface dialogInterface, int i) { 
       Toast.makeText(getActivity(), "No Clicked", Toast.LENGTH_SHORT).show(); 
      } 
     }); 
     builder.setPositiveButton("Yes", new DialogInterface.OnClickListener() { 
      @Override 
      public void onClick(DialogInterface dialogInterface, int i) { 
       Toast.makeText(getActivity(), "Yes Clicked", Toast.LENGTH_SHORT).show(); 
      } 
     }); 
     Dialog dialog = builder.create(); 

     return dialog; 
    } 

MainActivity 클릭 리스너

btnClick=(Button)findViewById(R.id.button); 
     btnClick.setOnClickListener(new View.OnClickListener() { 
      @Override 
      public void onClick(View view) { 
       FragmentManager manager=getFragmentManager(); 
       BlankFragment myFragment=new BlankFragment(); 
       myFragment.show(manager,"My Dialog"); 
      } 
     }); 

Answer 1

쓰기 당신의 MainActivity에서이 기능입니다

private void openDialog() { 
    AlertDialog.Builder builder = new AlertDialog.Builder(this); 
    builder.setTitle("My Dialog Box"); 
    builder.setMessage("Do you like this dialog"); 
    builder.setNegativeButton("No", new DialogInterface.OnClickListener() { 
     @Override 
     public void onClick(DialogInterface dialogInterface, int i) { 
      Toast.makeText(MainActivity.this, "No Clicked", Toast.LENGTH_SHORT).show(); 
     } 
    }); 
    builder.setPositiveButton("Yes", new DialogInterface.OnClickListener() { 
     @Override 
     public void onClick(DialogInterface dialogInterface, int i) { 
      Toast.makeText(MainActivity.this, "Yes Clicked", Toast.LENGTH_SHORT).show(); 
     } 
    }); 
    builder.show(); 
} 

그리고 당신은 DialogFragment 필요하지 않습니다

btnClick=(Button)findViewById(R.id.button); 
    btnClick.setOnClickListener(new View.OnClickListener() { 
     @Override 
     public void onClick(View view) { 
      openDialog(); 
     } 
    }); 

아래로 연락하십시오. DialogFragment 코드를 완전히 제거하십시오.