[Android] Chapter 6 (1) Dialog Box--The main interface of this chapter's example-php手册-php.cn

[Android] Chapter 6 (1) Dialog Box--The main interface of this chapter's example

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Release： 2016-07-06 13:30:29

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Category: C#, Android, VS2015; Creation date: 2016-02-08 In Android applications, commonly used dialog boxes include: Toast, AlertDialog, PRogressDialog, time selection dialog box, date selection dialog box, etc. This chapter mainly introduces the basic usage of these common dialog boxes. There are 4 examples of the source program in this chapter, and these examples are all in the same project

Category: C#, Android, VS2015;

Creation date: 2016-02-08

In Android applications, commonly used dialog boxes include: Toast, AlertDialog, PRogressDialog, time selection dialog box, date selection dialog box, etc. This chapter mainly introduces the basic usage of these common dialog boxes.

There are 4 examples of the source program in this chapter, and these examples are all in the same project.

Project name: ch06demos

Project template: Blank App(Android)

1. Running screenshots

The main interface operation screenshot is as follows:

[Android] Chapter 6 (1) Dialog Box--The main interface of this chapters example

Click on the example item in each row to enter the page of the corresponding example.

2. Main interface (Main.axml)

Change Main.axml to the following code:

<span style="color: #0000ff;"></span><span style="color: #ff00ff;">xml version="1.0" encoding="utf-8"</span><span style="color: #0000ff;">?></span>
<span style="color: #0000ff;"><span style="color: #800000;">LinearLayout </span><span style="color: #ff0000;">xmlns:android</span><span style="color: #0000ff;">="http://schemas.android.com/apk/res/android"</span><span style="color: #ff0000;">
    android:orientation</span><span style="color: #0000ff;">="vertical"</span><span style="color: #ff0000;">
    android:layout_width</span><span style="color: #0000ff;">="fill_parent"</span><span style="color: #ff0000;">
    android:layout_height</span><span style="color: #0000ff;">="fill_parent"</span><span style="color: #0000ff;">></span>
    <span style="color: #0000ff;"><span style="color: #800000;">ListView
        </span><span style="color: #ff0000;">android:minWidth</span><span style="color: #0000ff;">="25px"</span><span style="color: #ff0000;">
        android:minHeight</span><span style="color: #0000ff;">="25px"</span><span style="color: #ff0000;">
        android:layout_width</span><span style="color: #0000ff;">="match_parent"</span><span style="color: #ff0000;">
        android:layout_height</span><span style="color: #0000ff;">="match_parent"</span><span style="color: #ff0000;">
        android:id</span><span style="color: #0000ff;">="@+id/listView1"</span> <span style="color: #0000ff;">/></span>
<span style="color: #0000ff;"></span><span style="color: #800000;">LinearLayout</span><span style="color: #0000ff;">></span></span></span>

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3. Add the theme used in the AndroidManifest.xml file

Set a theme that applies to all pages.

<span style="color: #0000ff;"></span><span style="color: #ff00ff;">xml version="1.0" encoding="utf-8"</span><span style="color: #0000ff;">?></span>
<span style="color: #0000ff;"><span style="color: #800000;">manifest </span><span style="color: #ff0000;">xmlns:android</span><span style="color: #0000ff;">="http://schemas.android.com/apk/res/android"</span><span style="color: #ff0000;"> package</span><span style="color: #0000ff;">="ch06demos.ch06demos"</span><span style="color: #ff0000;"> android:versionCode</span><span style="color: #0000ff;">="1"</span><span style="color: #ff0000;"> android:versionName</span><span style="color: #0000ff;">="1.0"</span><span style="color: #0000ff;">></span>
  <span style="color: #0000ff;"><span style="color: #800000;">uses-sdk </span><span style="color: #ff0000;">android:minSdkVersion</span><span style="color: #0000ff;">="16"</span> <span style="color: #0000ff;">/></span>
  <span style="color: #0000ff;"><span style="color: #800000;">application </span><span style="color: #ff0000;">android:label</span><span style="color: #0000ff;">="ch06demos"</span><span style="color: #ff0000;">
    android:theme</span><span style="color: #0000ff;">="@android:style/Theme.DeviceDefault.Light"</span><span style="color: #0000ff;">></span>
  <span style="color: #0000ff;"></span><span style="color: #800000;">application</span><span style="color: #0000ff;">></span>
<span style="color: #0000ff;"></span><span style="color: #800000;">manifest</span><span style="color: #0000ff;">></span></span></span></span>

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

After all the examples in this chapter are completed, the code of MainActivity.cs is as follows:

<span style="color: #0000ff;">using</span><span style="color: #000000;"> System.Collections.Generic;
</span><span style="color: #0000ff;">using</span><span style="color: #000000;"> Android.App;
</span><span style="color: #0000ff;">using</span><span style="color: #000000;"> Android.Widget;
</span><span style="color: #0000ff;">using</span><span style="color: #000000;"> Android.OS;
</span><span style="color: #0000ff;">using</span><span style="color: #000000;"> ch06demos.SrcActivity;

</span><span style="color: #0000ff;">namespace</span><span style="color: #000000;"> ch06demos
{
    [Activity(Label </span>= <span style="color: #800000;">"</span><span style="color: #800000;">ch06demos</span><span style="color: #800000;">"</span>, MainLauncher = <span style="color: #0000ff;">true</span>, Icon = <span style="color: #800000;">"</span><span style="color: #800000;">@drawable/icon</span><span style="color: #800000;">"</span><span style="color: #000000;">)]
    </span><span style="color: #0000ff;">public</span> <span style="color: #0000ff;">class</span><span style="color: #000000;"> MainActivity : Activity
    {
        </span><span style="color: #0000ff;">string</span><span style="color: #000000;">[] items;
        </span><span style="color: #0000ff;">protected</span> <span style="color: #0000ff;">override</span> <span style="color: #0000ff;">void</span><span style="color: #000000;"> OnCreate(Bundle bundle)
        {
            </span><span style="color: #0000ff;">base</span><span style="color: #000000;">.OnCreate(bundle);
            SetContentView(Resource.Layout.Main);
            items </span>= <span style="color: #0000ff;">new</span> <span style="color: #0000ff;">string</span><span style="color: #000000;">[]
            {
                </span><span style="color: #800000;">"</span><span style="color: #800000;">Demo01：Toast</span><span style="color: #800000;">"</span><span style="color: #000000;">,
                </span><span style="color: #800000;">"</span><span style="color: #800000;">Demo02：AlertDialog</span><span style="color: #800000;">"</span><span style="color: #000000;">,
                </span><span style="color: #800000;">"</span><span style="color: #800000;">Demo03：ProgressDialog</span><span style="color: #800000;">"</span><span style="color: #000000;">,
                </span><span style="color: #800000;">"</span><span style="color: #800000;">Demo04：DatePicker、TimePicker</span><span style="color: #800000;">"</span><span style="color: #000000;">
            };
            ListView listView1 </span>= FindViewById<listview><span style="color: #000000;">(Resource.Id.listView1);
            listView1.Adapter </span>= <span style="color: #0000ff;">new</span> ArrayAdapterstring>(<span style="color: #0000ff;">this</span><span style="color: #000000;">,
                Android.Resource.Layout.SimpleListItem2, items);
            listView1.ItemClick </span>+= (s, e) =><span style="color: #000000;">
            {
                </span><span style="color: #0000ff;">int</span> index = e.Position + <span style="color: #800080;">1</span><span style="color: #000000;">;
                </span><span style="color: #0000ff;">switch</span><span style="color: #000000;"> (index)
                {
                    </span><span style="color: #0000ff;">case</span> <span style="color: #800080;">1</span><span style="color: #000000;">:
                        StartActivity(</span><span style="color: #0000ff;">typeof</span><span style="color: #000000;">(Demo01Toast));
                        </span><span style="color: #0000ff;">break</span><span style="color: #000000;">;
                    </span><span style="color: #0000ff;">case</span> <span style="color: #800080;">2</span><span style="color: #000000;">:
                        StartActivity(</span><span style="color: #0000ff;">typeof</span><span style="color: #000000;">(Demo02AlertDialog));
                        </span><span style="color: #0000ff;">break</span><span style="color: #000000;">;
                    </span><span style="color: #0000ff;">case</span> <span style="color: #800080;">3</span><span style="color: #000000;">:
                        StartActivity(</span><span style="color: #0000ff;">typeof</span><span style="color: #000000;">(Demo03ProgressDialog));
                        </span><span style="color: #0000ff;">break</span><span style="color: #000000;">;
                    </span><span style="color: #0000ff;">case</span> <span style="color: #800080;">4</span><span style="color: #000000;">:
                        StartActivity(</span><span style="color: #0000ff;">typeof</span><span style="color: #000000;">(Demo04DatePickerDialog));
                        </span><span style="color: #0000ff;">break</span><span style="color: #000000;">;
                }
            };
        }
    }
}</span></listview>

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