1

我想从我的主Activity使用DialogFragments创建一个DatePicker对话框。我已经扩展了DialogFragment类,并返回新datePickerDialog按java.lang.IllegalStateException:在创建日期选择器对话框时活动已被破坏

http://developer.android.com/guide/topics/ui/controls/pickers.html

这里是我的类代码:

import java.util.Calendar; 
import android.app.DatePickerDialog; 
import android.app.DatePickerDialog.OnDateSetListener; 
import android.app.Dialog; 
import android.app.DialogFragment; 
import android.os.Bundle; 
import android.widget.DatePicker; 

public class DatePickerFragment extends DialogFragment implements OnDateSetListener{ 

    @Override 
    public void onDateSet(DatePicker arg0, int arg1, int arg2, int arg3) { 
     // TODO set the date for the alarm  
    } 

    @Override 
    public Dialog onCreateDialog(Bundle savedInstanceState){ 
     //set current date as default date 
     final Calendar c = Calendar.getInstance(); 
     int year = c.get(Calendar.YEAR); 
     int month = c.get(Calendar.MONTH); 
     int day = c.get(Calendar.DAY_OF_MONTH); 

     //Create New Instance of the datepicker dialog 
     return new DatePickerDialog(getActivity(), this, year, month, day); 
    } 

} 

我对主Acivity一个按钮来触发对话框:

public void setAlarm(View view){ 
     //TextView reminder_title = (TextView) view.findViewById(R.id.reminder_title); 
     DialogFragment dateFragment = new DatePickerFragment(); 
     dateFragment.show(getFragmentManager(), "date picker"); 
    } 

但是,当我尝试点击按钮时,我得到一个“java.lang.IllegalStateException:Activity has been destroyed”异常在bel流线:

dateFragment.show(getFragmentManager(), "date picker"); 

这里的活动日志:

06-08 15:45:48.261: E/AndroidRuntime(5489): FATAL EXCEPTION: main 
06-08 15:45:48.261: E/AndroidRuntime(5489): Process: com.flamesavor.reme, PID: 5489 
06-08 15:45:48.261: E/AndroidRuntime(5489): java.lang.IllegalStateException: Activity has been destroyed 
06-08 15:45:48.261: E/AndroidRuntime(5489):  at android.app.FragmentManagerImpl.enqueueAction(FragmentManager.java:1345) 
06-08 15:45:48.261: E/AndroidRuntime(5489):  at android.app.BackStackRecord.commitInternal(BackStackRecord.java:597) 
06-08 15:45:48.261: E/AndroidRuntime(5489):  at android.app.BackStackRecord.commit(BackStackRecord.java:575) 
06-08 15:45:48.261: E/AndroidRuntime(5489):  at android.app.DialogFragment.show(DialogFragment.java:230) 
06-08 15:45:48.261: E/AndroidRuntime(5489):  at com.flamesavor.reme.ReMe.setAlarm(ReMe.java:67) 
06-08 15:45:48.261: E/AndroidRuntime(5489):  at com.flamesavor.reme.resources.ListViewAdapter.setAlarm(ListViewAdapter.java:60) 
06-08 15:45:48.261: E/AndroidRuntime(5489):  at com.flamesavor.reme.resources.ListViewAdapter$1.onClick(ListViewAdapter.java:48) 
06-08 15:45:48.261: E/AndroidRuntime(5489):  at android.view.View.performClick(View.java:4456) 
06-08 15:45:48.261: E/AndroidRuntime(5489):  at android.view.View$PerformClick.run(View.java:18462) 
06-08 15:45:48.261: E/AndroidRuntime(5489):  at android.os.Handler.handleCallback(Handler.java:733) 
06-08 15:45:48.261: E/AndroidRuntime(5489):  at android.os.Handler.dispatchMessage(Handler.java:95) 
06-08 15:45:48.261: E/AndroidRuntime(5489):  at android.os.Looper.loop(Looper.java:136) 
06-08 15:45:48.261: E/AndroidRuntime(5489):  at android.app.ActivityThread.main(ActivityThread.java:5102) 
06-08 15:45:48.261: E/AndroidRuntime(5489):  at java.lang.reflect.Method.invokeNative(Native Method) 
06-08 15:45:48.261: E/AndroidRuntime(5489):  at java.lang.reflect.Method.invoke(Method.java:515) 
06-08 15:45:48.261: E/AndroidRuntime(5489):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:785) 
06-08 15:45:48.261: E/AndroidRuntime(5489):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:601) 
06-08 15:45:48.261: E/AndroidRuntime(5489):  at dalvik.system.NativeStart.main(Native Method) 

任何帮助将非常感激。

谢谢。

回答

0

今天面临着类似的问题。这很简单。只是检查我的按钮点击以下:

if (!datePickerDialog.isAdded()) { 

      datePickerDialog.setStartDate(year, month, day); 
      datePickerDialog.show(getFragmentManager(), DATEPICKER_TAG); 
} 
else 
{ 
    //you can replace or add,,ur wish 
} 

就是这样

+0

嗨,我试过这个解决方案,但我仍然得到相同的错误 – flamesavor

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