编程/动态添加按钮控件使用单声道为Android {例如}查看 [英] Programmatically/Dynamically Add Button Controls to View using Mono for Android {example}

问题描述

寻找如何动态地从活动添加控件的一个例子。

Looking for an example of how to dynamically add controls from the activity.

内的活动，让我们把它称为Activity2.cs，动态添加按钮的变量数MyView.axml。

Inside an activity, lets call it "Activity2.cs", dynamically add a variable number of buttons to "MyView.axml".

我在寻找code像下面（除code，实际工作）：

I'm looking for code like below (except code that actually works):

        string[] textArray = new string[] { "button1", "button2", "button3", "button4" };
        int counter= 3;

        for (int i = 0; i < length; i++)
        {

            var mytest = new button(this);

            mytest.Text = textArray[i];
            mytest.id= textArray[i];

            View(MyView.axml).add(mytest);
        }

的结果将是四个按钮被添加在视图的底部。我可以用单声道为Android（即在Visual Studio），当发现示例如何动态地在Android中添加控件，但不是。

The result would be that four buttons are added at the bottom of the view. I can find examples for how to dynamically add controls in Android, but not when using Mono for Android (ie in Visual Studio).

推荐答案

假设您的布局文件看起来像这样（Main.axml）：

Let's say your layout file looks like this (Main.axml):

<?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"
    android:id="@+id/Buttons">
</LinearLayout>

然后在你的活动，你可以添加按钮对象，这样的布局：

Then in your activity you can add Button objects to the layout like this:

[Activity(Label = "Buttons", MainLauncher = true, Icon = "@drawable/icon")]
public class ButtonActivity : Activity
{
    protected override void OnCreate(Bundle bundle)
    {
        base.OnCreate(bundle);

        SetContentView(Resource.Layout.Main);

        var buttons = FindViewById<LinearLayout>(Resource.Id.Buttons);

        for (int i = 1; i <= 4; i++)
        {
            var button = new Button(this);
            button.Text = "Button " + i;
            button.LayoutParameters = new ViewGroup.LayoutParams(ViewGroup.LayoutParams.MatchParent,
                                                                 ViewGroup.LayoutParams.WrapContent);

            buttons.AddView(button);
        }
    }
}

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