ListView 中使用RadioButton实现单选

最新推荐文章于 2016-03-12 17:57:19 发布

原创最新推荐文章于 2016-03-12 17:57:19 发布 · 1.3k 阅读

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#android #ListView #radiobutton

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本文介绍了一个简单的 Android 应用示例，展示了如何使用 ListView 控件结合自定义适配器来显示列表项，并为列表项中的 Button 和 RadioButton 添加点击事件。

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1.activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical" >

    <ListView
        android:id="@+id/list"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent" />

</LinearLayout>

2.item.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content" >

    <Button
        android:id="@+id/button"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="测试" >
    </Button>

    <RadioButton
        android:id="@+id/radioButton"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />

</LinearLayout>

3.MainActivity

package com.example.test;

import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.Button;
import android.widget.CompoundButton;
import android.widget.Toast;
import android.widget.CompoundButton.OnCheckedChangeListener;
import android.widget.ListView;
import android.widget.RadioButton;

public class MainActivity extends Activity {

	private static final String TAG =  "MainActivity";
	private ListView listView;
	@Override
	public  void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);
		listView = (ListView)  this.findViewById(R.id.list);
		MyAdapter adapter = new  MyAdapter();
		listView.setAdapter(adapter);
	}
	private  class MyAdapter extends BaseAdapter{
		private String[] s = new  String[]{"a","b","c","d","e"};
		private int temp = -6;

		@Override
		public int getCount() {
			// TODO  Auto-generated method stub
			return s.length;
		}

		@Override
		public Object getItem(int position)  {
			// TODO Auto-generated method stub
			return  null;
		}

		@Override
		public long getItemId(int  position) {
			// TODO Auto-generated method stub
			return 0;
		}

		@Override
		public View  getView(int position, View convertView, ViewGroup parent) {
			Holder holder;
			if(convertView == null){
				convertView = MainActivity.this.getLayoutInflater().inflate(R.layout.item,  null);
				holder = new Holder();
				convertView.setTag(holder);
			}else{
				holder =  (Holder) convertView.getTag();
			}

			holder.button = (Button) convertView.findViewById(R.id.button);
			holder.button.setText(s[position]);
			holder.button.setOnClickListener(new OnClickListener() {
				
				@Override
				public void onClick(View v) {
					// TODO Auto-generated method stub
					Toast.makeText(MainActivity.this, "button", Toast.LENGTH_SHORT).show();
				}
			});

			holder.radioButton = (RadioButton)  convertView.findViewById(R.id.radioButton);
			holder.radioButton.setId(position);
			holder.radioButton.setOnCheckedChangeListener(new OnCheckedChangeListener()  {

				@Override
				public  void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {

					if(isChecked){
						if(temp != -6){
							RadioButton tempButton =  (RadioButton) MainActivity.this.findViewById(temp);
							tempButton.setChecked(false);

						}

						temp =  buttonView.getId();
						Log.i(TAG,"you are women- -   " +  isChecked + "   " + temp);
						//如果点击了ListView条目，在这里拿到Position做想要的操作...
					}
				}
			});
			return  convertView;
		}
		private class Holder{
			private Button button;
			private RadioButton radioButton;
		}
	}
}