實現我自己的片段作爲DialogFragment

Question

當我使用警告對話框中，我可以通過添加一個「取消」按鈕：

AlertDialog.Builder builder = new Builder(getActivity()); 
builder.setTitle("Students").setNegativeButton("Cancel",new DialogInterface.OnClickListener() { 
    public void onClick(DialogInterface dialog,int id) { 
    // if this button is clicked, just close 
    // the dialog box and do nothing 
    dialog.cancel(); 
    } 
});; 

現在我實現我自己的片段。我怎樣才能設置相同的取消按鈕？

Answer 1

你可以簡單地覆蓋DialogFragment的onCreateDialog()方法：

@Override 
    public Dialog onCreateDialog(Bundle savedInstanceState) { 
     AlertDialog.Builder builder = new Builder(getActivity()); 
builder.setTitle("Students").setNegativeButton("Cancel",new DialogInterface.OnClickListener() { 
    public void onClick(DialogInterface dialog,int id) { 
    // if this button is clicked, just close 
    // the dialog box and do nothing 
    dialog.cancel(); 
    } 
});; 
     return builder.create(); 
    } 

希望這有助於。