Chapter 2 dialog box (1) Example of this chapter main interface, Chapter 6th example

Chapter 2 dialog box (1) Example of this chapter main interface, Chapter 6th example

Category: C #, Android, VS2015;

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In Android applications, common dialogs include Toast, AlertDialog, ProgressDialog, Time Selection, and date selection. This chapter describes the basic usage of these commonly used dialogs.

There are four examples of the source program in this chapter, all of which are in the same project.

Project name: ch06demos

Project template: Blank App (Android)

1. Run

The main interface is run as follows:

Click the sample items in each row to go to the corresponding Sample Page.

2. Main Interface (Main. axml)

Change Main. axml to the following code:

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:orientation="vertical"    android:layout_width="fill_parent"    android:layout_height="fill_parent">    <ListView        android:minWidth="25px"        android:minHeight="25px"        android:layout_width="match_parent"        android:layout_height="match_parent"        android:id="@+id/listView1" /></LinearLayout>

3. Add the topic to the AndroidManifest. xml file.

Set the topic applied to all pages.

<?xml version="1.0" encoding="utf-8"?><manifest xmlns:android="http://schemas.android.com/apk/res/android" package="ch06demos.ch06demos" android:versionCode="1" android:versionName="1.0">  <uses-sdk android:minSdkVersion="16" />  <application android:label="ch06demos"    android:theme="@android:style/Theme.DeviceDefault.Light">  </application></manifest>

4. The active file (MainActivity. cs) corresponding to the main interface)

The MainActivity. cs code is as follows:

using System.Collections.Generic;using Android.App;using Android.Widget;using Android.OS;using ch06demos.SrcActivity;namespace ch06demos{    [Activity(Label = "ch06demos", MainLauncher = true, Icon = "@drawable/icon")]    public class MainActivity : Activity    {        string[] items;        protected override void OnCreate(Bundle bundle)        {            base.OnCreate(bundle);            SetContentView(Resource.Layout.Main);            items = new string[]            {                "Demo01：Toast",                "Demo02：AlertDialog",                "Demo03：ProgressDialog",                "Demo04：DatePicker、TimePicker"            };            ListView listView1 = FindViewById<ListView>(Resource.Id.listView1);            listView1.Adapter = new ArrayAdapter<string>(this,                Android.Resource.Layout.SimpleListItem2, items);            listView1.ItemClick += (s, e) =>            {                int index = e.Position + 1;                switch (index)                {                    case 1:                        StartActivity(typeof(Demo01Toast));                        break;                    case 2:                        StartActivity(typeof(Demo02AlertDialog));                        break;                    case 3:                        StartActivity(typeof(Demo03ProgressDialog));                        break;                    case 4:                        StartActivity(typeof(Demo04DatePickerDialog));                        break;                }            };        }    }}