Android中的AlertDialog使用示例三(单向选择确定对话框)

在Android开发中,我们经常会需要在Android界面上弹出一些对话框,比如询问用户或者让用户选择。这些功能我们叫它Android Dialog对话框,AlertDialog实现方法为建造者模式。下面我们简单模拟一个挑媳妇的选择确定对话框(单选)对话框,不同于示例二之处在于本次只要不确定就可以后悔哦,如下图:

 

Layout界面代码:

 1 <?xml version="1.0" encoding="utf-8"?>
 2 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
 3     android:orientation="vertical" android:layout_width="match_parent"
 4     android:layout_height="match_parent">
 5     <Button
 6         android:text="单向选择"
 7         android:layout_width="match_parent"
 8         android:layout_height="wrap_content"
 9         android:onClick="show3"
10         android:id="@+id/button3" />
11 </LinearLayout>

 

Java功能实现代码:

 1 public class AlertDialogDemo extends AppCompatActivity {
 2     int index=0;
 3     @Override
 4     protected void onCreate(@Nullable Bundle savedInstanceState) {
 5         super.onCreate(savedInstanceState);
 6         setContentView(R.layout.alertdialog);
 7     }
 8     public void show3(View v){
 9         AlertDialog.Builder builder = new AlertDialog.Builder(this);
10         builder.setTitle("挑媳妇儿");
11         final String[] beautifulGirls = {"芙蓉姐姐","凤姐","范爷","我自己"};
12         builder.setSingleChoiceItems(beautifulGirls, 0, new DialogInterface.OnClickListener() {
13             @Override
14             public void onClick(DialogInterface dialog, int which) {
15                 index = which;
16             }
17         });
18         builder.setPositiveButton("确定", new DialogInterface.OnClickListener() {
19             @Override
20             public void onClick(DialogInterface dialog, int which) {
21                 Toast.makeText(AlertDialogDemo.this,beautifulGirls[index]+"是你的媳妇了",Toast.LENGTH_SHORT).show();
22             }
23         });
24         builder.show();
25     }
26 }

优化空间很大,大家都可以玩玩。

原文地址:https://www.cnblogs.com/panhouye/p/6099678.html