对话框未从Android中的fragmentActivity显示

Question

我想在扩展FragmentActivity的类内显示一个对话框。我尝试了很多方法。最后，我尝试了此链接 。 我已经尝试过相同的方法，但是我收到以下错误消息。

  05-14 10:15:28.821: E/AndroidRuntime(2927): java.lang.IllegalStateException: Activity has been destroyed
  05-14 10:15:28.821: E/AndroidRuntime(2927):   at   android.support.v4.app.FragmentManagerImpl.enqueueAction(FragmentManager.java:1342)
  05-14 10:15:28.821: E/AndroidRuntime(2927):   at android.support.v4.app.BackStackRecord.commitInternal(BackStackRecord.java:595)
  05-14 10:15:28.821: E/AndroidRuntime(2927):   at android.support.v4.app.BackStackRecord.commit(BackStackRecord.java:574)
  05-14 10:15:28.821: E/AndroidRuntime(2927):   at android.support.v4.app.DialogFragment.show(DialogFragment.java:127)
  05-14 10:15:28.821: E/AndroidRuntime(2927):   at com.sriseshaa.ecgviewer.FragmentTabActivity$1$1.run(FragmentTabActivity.java:70)
  05-14 10:15:28.821: E/AndroidRuntime(2927):   at android.os.Handler.handleCallback(Handler.java:725)
  05-14 10:15:28.821: E/AndroidRuntime(2927):   at android.os.Handler.dispatchMessage(Handler.java:92)
  05-14 10:15:28.821: E/AndroidRuntime(2927):   at android.os.Looper.loop(Looper.java:137)
  05-14 10:15:28.821: E/AndroidRuntime(2927):   at android.app.ActivityThread.main(ActivityThread.java:5039)
  05-14 10:15:28.821: E/AndroidRuntime(2927):   at java.lang.reflect.Method.invokeNative(Native Method)
  05-14 10:15:28.821: E/AndroidRuntime(2927):   at java.lang.reflect.Method.invoke(Method.java:511)
  05-14 10:15:28.821: E/AndroidRuntime(2927):   at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)
  05-14 10:15:28.821: E/AndroidRuntime(2927):   at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)
  05-14 10:15:28.821: E/AndroidRuntime(2927):   at dalvik.system.NativeStart.main(Native Method)

FragmentTabActivity.java:70是

   adFragment.show(getSupportFragmentManager(), "dialog");

我通过以下代码片段调用了对话框

          Bundle bundle = new Bundle();  
          bundle.putString("title", "Message");  
          bundle.putString("message", StaticHelper.l);  
          bundle.putString("positive", "Ok");  
          bundle.putString("negative", "Cancel");  
          // bundle.putInt("id", mIndex++);  
          AlertDialogFragment adFragment = new AlertDialogFragment();  
          adFragment.setArguments(bundle);  
          adFragment.show(getSupportFragmentManager(), "dialog");  

我错过了什么？ 这是什么问题呢？ 请帮助我。谢谢！

Answer 1

如果您确实要显示AlertDialog，则使用AlertDialog.Builder的问题如下。

    AlertDialog.Builder dialog = new AlertDialog.Builder(this);
    dialog.setIcon(R.drawable.ic_launcher);
    dialog.setTitle("Title");
    dialog.setMessage("Message");
    dialog.setPositiveButton("yes", new DialogInterface.OnClickListener() {
        public void onClick(DialogInterface dialog, int id) {

        }
       });
       dialog.setNegativeButton("no", new DialogInterface.OnClickListener() {
            public void onClick(DialogInterface dialog, int id) {
                dialog.dismiss();
            }
      });
      dialog.show();