Android Development Interface View Dialog dialog box Example tutorial

User Interface View Dialog dialog box

First, Alertdialog common methods
Create a Alertdialog using the Create () method in Alertdialog.builder

Settitle (); Set Caption To dialog box
SetIcon (); Set icon for dialog box
Setmessage (); Set the message for the dialog box
Setview () to set a custom style for the dialog box
Setitems (); Sets a list to display for the dialog box, which is typically used to display a few commands
Setsinglechoiceitems (); The Setup dialog box displays a single select list
Setmultichoiceitems (); Setup dialog box displays a series of check boxes
Setneutralbutton (); normal button
Setpositivebutton (); Add OK button to dialog box
Setnegativebutton (); Add the Cancel button to the dialog box


Example one:

Figure 1 Effect: This effect is when you press the return button to eject a prompt to ensure that the correct operation, using the common style of the dialog box.

Code:

Create a dialog box Method dialog ()

protected void dialog () {
Alertdialog.builder Builder = new Builder (main.this);
Builder.setmessage ("Confirm exit"?) ");

Builder.settitle ("hint");

Builder.setpositivebutton ("Confirm", new Onclicklistener () {

@Override
public void OnClick (Dialoginterface dialog, int which) {
Dialog.dismiss ();

Main.this.finish ();
}
});

Builder.setnegativebutton ("Cancel", new Onclicklistener () {

@Override
public void OnClick (Dialoginterface dialog, int which) {
Dialog.dismiss ();
}
});

Builder.create (). Show ();
}



This method is called in the onkeydown (int keycode, KeyEvent event) method

public boolean onKeyDown (int keycode, keyevent event) {
if (keycode = = Keyevent.keycode_back && event.getrepeatcount () = = 0) {
Dialog ();
}
return false;
}

Figure 2 Effect: Change the dialog box chart, add three buttons

Dialog Dialog = new Alertdialog.builder (this). SetIcon (
Android. R.drawable.btn_star). Settitle ("Hobby Survey"). Setmessage (
"Do you like Jet Li's movie?" "). Setpositivebutton (" very like "),
New Onclicklistener () {

@Override
public void OnClick (Dialoginterface dialog, int which) {
TODO auto-generated Method Stub
Toast.maketext (Main.this, "I like his movies very much.") ",
Toast.length_long). Show ();
}
}). Setnegativebutton ("Dislike", new Onclicklistener () {

@Override
public void OnClick (Dialoginterface dialog, int which) {
TODO auto-generated Method Stub
Toast.maketext (Main.this, "I don't like his movies." ", Toast.length_long)
. Show ();
}
}). Setneutralbutton ("General", new Onclicklistener () {

@Override
public void OnClick (Dialoginterface dialog, int which) {
TODO auto-generated Method Stub
Toast.maketext (Main.this, "I don't like it." ", Toast.length_long)
. Show ();
}
). Create ();

Dialog.show ();



Figure 3 Effect: The information content is a simple view type

New Alertdialog.builder (this). Settitle ("Please enter"). SetIcon (
Android. R.drawable.ic_dialog_info). Setview (
New EditText (This)). Setpositivebutton ("OK", NULL)
. Setnegativebutton ("Cancel", null). Show ();



Figure 4 Effect: The information content is a group of radio boxes

New Alertdialog.builder (this). Settitle ("check box"). Setmultichoiceitems (
New string[] {"Item1", "Item2"}, NULL, NULL)
. Setpositivebutton ("OK", NULL)
. Setnegativebutton ("Cancel", null). Show ();



Figure 5 Effect: Information content is a set of multiple-selection boxes

New Alertdialog.builder (this). Settitle ("Radio Box"). SetIcon (
Android. R.drawable.ic_dialog_info). Setsinglechoiceitems (
New string[] {"Item1", "Item2"}, 0,
New Dialoginterface.onclicklistener () {
public void OnClick (Dialoginterface dialog, int which) {
Dialog.dismiss ();
}
}). Setnegativebutton ("Cancel", null). Show ();



Figure 6 Effect: The information content is a set of simple list items

New Alertdialog.builder (this). Settitle ("ListBox"). Setitems (
New string[] {"Item1", "Item2"}, NULL). Setnegativebutton (
OK, null). Show ();



Figure 7 Effect: The information content is a custom layout

1. layout file

<?xml version= "1.0" encoding= "Utf-8"?>
<linearlayout xmlns:android= "Http://schemas.android.com/apk/res/android"
android:layout_height= "Wrap_content" android:layout_width= "Wrap_content"
Android:background= "#ffffffff" android:orientation= "Horizontal"
Android:id= "@+id/dialog" >
<textview android:layout_height= "Wrap_content"
Android:layout_width= "Wrap_content"
Android:id= "@+id/tvname" android:text= "Name:"/>
<edittext android:layout_height= "Wrap_content"
Android:layout_width= "Wrap_content" android:id= "@+id/etname" android:minwidth= "100dip"/>

</LinearLayout>

2. Calling code

Layoutinflater inflater = Getlayoutinflater ();
View layout = Inflater.inflate (R.layout.dialog,
(ViewGroup) Findviewbyid (R.id.dialog));

New Alertdialog.builder (this). Settitle ("Custom Layout"). Setview (Layout)
. Setpositivebutton ("OK", NULL)
. Setnegativebutton ("Cancel", null). Show ();