Android支持庫v4對話框片段

Question

我在做什麼？ 我有這個加載了一個XML的片段。在該XML內我有一個圖像按鈕，它應該顯示一個對話框消息。

這是片段的代碼;

import android.os.Bundle; 
import android.support.v4.app.Fragment; 
import android.support.v4.app.FragmentActivity; 
import android.view.LayoutInflater; 
import android.view.View; 
import android.view.ViewGroup; 

public class LoadingupFragment extends Fragment { 

@Override 
public View onCreateView(LayoutInflater inflater, ViewGroup container, 
         Bundle savedInstanceState) { 
    // Inflate the layout for this fragment 
    final View v = inflater.inflate(R.layout.example, container, false); 

return v; 
} 


public void dialogboxalert (View view){ 

    ExampleAlert dialog = new ExampleAlert(); 
    // dialog.show(getSupportFragmentManager(),""); ERRRORRR 

} 

這是對話框的代碼;

import android.app.AlertDialog; 
import android.app.Dialog; 
import android.content.DialogInterface; 
import android.os.Bundle; 

public class ExampleAlert extends android.support.v4.app.DialogFragment { 

    @Override 
    public Dialog onCreateDialog(Bundle savedInstanceState) { 

     AlertDialog.Builder builder = new AlertDialog.Builder(getActivity()); 
     builder.setMessage("This is my dialog..").setPositiveButton("OK",new DialogInterface.OnClickListener() { 
      @Override 
      public void onClick(DialogInterface dialog, int which) { 

      } 
     }).setNegativeButton("CANCEL", new DialogInterface.OnClickListener() { 
      @Override 
      public void onClick(DialogInterface dialog, int which) { 

      } 
     }); 

     AlertDialog dialog = builder.create(); 

     return dialog; 
    } 
} 

請問有人可以幫我解決支持庫問題嗎？發生

Answer 1

的問題，因爲你的DialogFragment擴展android.app.DialogFragement，它應該擴展android.support.v4.app.DialogFragment

Answer 2

自從谷歌發佈了新的支持庫，你應該使用這個類擴展您的對話片段AppCompatDialog

https://developer.android.com/reference/android/support/v7/app/AppCompatDialog.html