Question

我得到了以下内容：

一个名为DConce的类，其中包含我将要使用的一个对话框的代码：

    public class DConce extends DialogFragment{

public Dialog onCreateDialog(Bundle savedInstanceState) {
AlertDialog.Builder dshow = new AlertDialog.Builder(getActivity());

LayoutInflater inflater = getActivity().getLayoutInflater();

dshow.setView(inflater.inflate(R.layout.dialogconc, null))

       .setPositiveButton("Send", new DialogInterface.OnClickListener() {
           @Override
           public void onClick(DialogInterface dialog, int id) {

               //TODO


           }
       })
       .setNegativeButton("Close", new DialogInterface.OnClickListener() {
           public void onClick(DialogInterface dialog, int id) {
               DConce.this.getDialog().cancel();
           }
       });      

return dshow.create();

}

将另一个类放入一个名为public final class Sincr extends Fragment的片段中，我需要调用对话框：

 case R.id.btnConce:
    //here      
            break;

我该怎么做？

提前感谢。

Answer 1

修改DialogFragment：

public class DConce extends DialogFragment{

  public static DConce newInstance(){
    DConce f = new DConce();
    return f;
  }

  public Dialog onCreateDialog(Bundle savedInstanceState) {
    AlertDialog.Builder dshow = new AlertDialog.Builder(getActivity());

    LayoutInflater inflater = getActivity().getLayoutInflater();

    dshow.setView(inflater.inflate(R.layout.dialogconc, null))
      .setPositiveButton("Send", new DialogInterface.OnClickListener() {
        @Override
        public void onClick(DialogInterface dialog, int id) {
           //TODO
        }
      })
      .setNegativeButton("Close", new DialogInterface.OnClickListener() {
        public void onClick(DialogInterface dialog, int id) {
          DConce.this.getDialog().cancel();
        }
      });     
    return dshow.create();
  }    
}

然后展示它;

case R.id.btnConce:
  DConce.newInstance().show(getChildFragmentManager(), null);
  break;

您当然可以选择为String参数传递tag，以唯一标识该片段。

Answer 2

您需要添加到代码中的是newInstance，例如：

public static DConce newInstance(){
    DConce arg = new DConce();
    return arg;
  }

然后在活动中：

FragmentManager manager = getSupportFragmentManager(); // or getFragmentManager, depends on which api lvl you are working on but supportFragmentManager will make you dialog work also on devices lower than api lvl 11(3.0 - > Honeycomb)
DialogFragment Dialog = DConce.newInstance();
Dialog.show(manager, "tag");

Answer 3

在这里关注android文档：http://developer.android.com/reference/android/app/DialogFragment.html

Answer 4

创建静态方法并将代码放入其中。

并直接按类名称致电，Dcon.myAlertMessage()

从另一个类调用对话框

4 个答案: