android之ListView与自定义adapter容易实例

android之ListView与自定义adapter简单实例

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    tools:context=".MainActivity" >
    <ListView 
        android:id="@+id/lt1"
        android:layout_height="wrap_content"
        android:layout_width="match_parent"
        android:divider="#f00"
        android:dividerHeight="2px"
        android:headerDividersEnabled="true"
        android:footerDividersEnabled="true"></ListView>
    <ListView 
        android:id="@+id/lt2"
        android:layout_marginTop="20px"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:divider="#0f0"
        android:dividerHeight="2px"
        android:headerDividersEnabled="true"
        android:footerDividersEnabled="true"></ListView>
    
       <ListView 
        android:id="@+id/lt3"
        android:layout_marginTop="20px"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"></ListView>


</LinearLayout>

package com.android.xiong.arrayadaptertest;

import android.app.Activity;
import android.os.Bundle;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.BaseAdapter;
import android.widget.Button;
import android.widget.LinearLayout;
import android.widget.ListView;
import android.widget.TextView;

public class MainActivity extends Activity {

	private ListView lt1;
	private ListView lt2;
	private ListView lt3;

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);

		setContentView(R.layout.activity_main);
		lt1 = (ListView) findViewById(R.id.lt1);
		lt2 = (ListView) findViewById(R.id.lt2);
		lt3 = (ListView) findViewById(R.id.lt3);
		String[] list1 = { "张三", "李四啊", "王五" };
		ArrayAdapter<String> adapter1 = new ArrayAdapter<String>(this,
				R.layout.texton, list1);
		lt1.setAdapter(adapter1);
		String[] list2 = { "java", "C#", "C" };
		ArrayAdapter<String> adapter2 = new ArrayAdapter<String>(this,
				R.layout.checkon, list2);
		lt2.setAdapter(adapter2);
		// 自定义列表项 实现BaseAdapter接口 重写方法
		BaseAdapter adapter3 = new BaseAdapter() {

			@Override
			public View getView(int position, View convertView, ViewGroup parent) {
				// TODO Auto-generated method stub
				LinearLayout linear = new LinearLayout(MainActivity.this);
				linear.setOrientation(0);
				final TextView txt1 = new TextView(MainActivity.this);
				txt1.setText(String.valueOf(position));
				final String str = String.valueOf(position);
				final Button bt1 = new Button(MainActivity.this);
				bt1.setText("详情");
				bt1.setOnClickListener(new OnClickListener() {

					@Override
					public void onClick(View v) {
						// TODO Auto-generated method stub
						// 控制单击了Button按钮
						if (!str.equals("2"))
							txt1.setText("赋值给:" + str);

					}
				});
				linear.addView(txt1);
				linear.addView(bt1);
				return linear;
			}

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

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

			@Override
			public int getCount() {
				// TODO Auto-generated method stub
				return 4;
			}
		};
		lt3.setAdapter(adapter3);

	}

	@Override
	public boolean onCreateOptionsMenu(Menu menu) {
		// Inflate the menu; this adds items to the action bar if it is present.
		getMenuInflater().inflate(R.menu.main, menu);
		return true;
	}

}

1楼u0119604022小时前

个人感觉多写点文字介绍，看起来会轻松一点。