android - 如何在android sdk中使用单选按钮关闭AlertDialog

Question

我创建了一个带有两个单选按钮的警报对话框。当用户选择一个选项时，我需要关闭警报对话框，但我无法关闭它。

 final CharSequence[] items = {"First Option", "Second Option"};

 AlertDialog.Builder builder = new AlertDialog.Builder(context);
 builder.setTitle("Choose an option"); 
 builder.setSingleChoiceItems(items, -1, new  DialogInterface.OnClickListener() { 
       public void  onClick(DialogInterface dialog, int item) {
            Toast.makeText(getApplicationContext(), items[item],  Toast.LENGTH_SHORT).show(); 
       } 
 });
 final AlertDialog alert = builder.create();
 alert.show();

有人可以帮助我如何做到这一点。

谢谢

Answer 1

请试试这个..

final CharSequence[] items = {"First Option", "Second Option"};

 AlertDialog.Builder builder = new AlertDialog.Builder(context);
 builder.setTitle("Choose an option"); 
 builder.setSingleChoiceItems(items, -1, new  DialogInterface.OnClickListener() { 
   public void  onClick(DialogInterface dialog, int item) {
        dialog.dismiss();
        Toast.makeText(getApplicationContext(), items[item],  Toast.LENGTH_SHORT).show(); 
   } 
});
final AlertDialog alert = builder.create();
alert.show();