Example 3 of AlertDialog in Android (one-way selection confirmation dialog box), androidalertdialog

Example 3 of AlertDialog in Android (one-way selection confirmation dialog box), androidalertdialog

In Android development, we often need to pop up some dialogs on the Android interface, such as asking users or asking users to choose. These functions are called the Android Dialog box. The AlertDialog implementation method is the builder mode. The following is a simple simulation of a selection confirmation dialog box (single choice) dialog box, different from the example 2 is that this time as long as you are not sure, you can regret it, such:

 

Layout interface code:

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 = "one-way selection" 7 android: layout_width = "match_parent" 8 android: layout_height = "wrap_content" 9 android: onClick = "show3" 10 android: id = "@ + id/button3"/> 11 </LinearLayout>

 

Java function implementation code:

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 ("pick a daughter"); 11 final String [] beautifulGirls = {"Sister Furong", "Sister Feng", "Fan Ye", "Myself"}; 12 builder. setSingleChoiceItems (beautifulGirls, 0, new DialogInterface. onClickListener () {13 @ Override14 public void onClick (DialogInterface dialog, int which) {15 index = which; 16} 17}); 18 builder. setPositiveButton ("OK", new DialogInterface. onClickListener () {19 @ Override20 public void onClick (DialogInterface dialog, int which) {21 Toast. makeText (AlertDialogDemo. this, beautifulGirls [index] + "is your daughter-in-law", Toast. LENGTH_SHORT ). show (); 22} 23}); 24 builder. show (); 25} 26}

There is a lot of optimization space for everyone to play.