需求：为Listview的Item里面的按钮Button添加一个事件，单击按钮时通过事件传值并跳转到新的页面。
环境：mono
效果：
布局代码
主布局
<?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:id="@+id/myList"
android:layout_width="fill_parent"
android:layout_height="fill_parent" />
</LinearLayout>
MainLayout
Item布局
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:padding="10dp"
> <TextView
android:id="@+id/txt"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
/> <Button
android:id="@+id/btn"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
/>
</RelativeLayout>
ListviewItemlayout
MainActivity
using System; using Android.App;
using Android.Content;
using Android.Runtime;
using Android.Views;
using Android.Widget;
using Android.OS;
using System.Collections.Generic; namespace ListViewItemBtnClick
{
[Activity(Label = "ListViewItemBtnClick", MainLauncher = true, Icon = "@drawable/icon")]
public class Activity1 : Activity
{
ListView listView; protected override void OnCreate(Bundle bundle)
{
base.OnCreate(bundle); SetContentView(Resource.Layout.Main); listView = FindViewById<ListView>(Resource.Id.myList); //填充Listview
getList(listView); } //获取Listview
private void getList(ListView listview)
{ Adapter goodsAdapter = new Adapter(this);
List<Item> itemList = new List<Item>();
Item item = new Item(); //给Item赋值 并且添加到list里面
for (int i = ; i <; i++)
{
item.title = i + "|标题|";
item.button = i + "btn";
itemList.Add(item);
}
//给adapter中添加list的值
foreach (Item item1 in itemList)
{
goodsAdapter.Add(item1);
}
//将adapter的值付给listview
listview.Adapter = goodsAdapter;
} }
}
MainActivity
Item类
class Item
{
//标题 textview
public string title { get; set; }
//按钮
public string button { get; set; }
}
Item
Adapter配置数据
namespace ListViewItemBtnClick
{
class Adapter:ArrayAdapter<Item>,View.IOnClickListener
{ private Context context; public Adapter(Context context):base(context,){
//通过构造函数获取context
this.context = context; } public override View GetView(int position, View convertView, ViewGroup parent)
{
View view;
//如果convertView不为空则直接使用
if (convertView!=null)
{
view = convertView; } else
{
view = LayoutInflater.From(this.Context).Inflate(Resource.Layout.ListItem, null); } //设置title的值
TextView title = view.FindViewById<TextView>(Resource.Id.txt);
Button btn = view.FindViewById<Button>(Resource.Id.btn); Item item = GetItem(position); title.Text = item.title + position;
//给每个按钮添加一个tag tag的值为position 或者自定义的ID
btn.SetTag(Resource.Id.btn,position);
btn.Text ="--"+ position+"---";
//注册事件
btn.SetOnClickListener(this);
return view;
} public void OnClick(View v)
{
//获得点击的按钮
Button btn = v as Button;
//获得tag
int id = Convert.ToInt32(btn.GetTag(btn.Id)); Intent it = new Android.Content.Intent(); it.SetClass(context,typeof(Activity2));
it.PutExtra("pos", id);
//注意！启动新Activity
context.StartActivity(it);
}
}
}
Adapter
在其他地方显示数据
string PosValue = Intent.GetStringExtra("pos"); Toast.MakeText(this, PosValue.ToString(), ToastLength.Long).Show();
欢迎交流——小査 1070437522@qq.com
