Android 向ListView里动态添加内容

<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/listview"
android:layout_width="fill_parent"
android:layout_height="match_parent">

</ListView>

</LinearLayout>

package com.test;

import java.util.ArrayList;
import java.util.List;

import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.Toast;
import android.app.Activity;
import android.content.Intent;

public class MainActivity extends Activity {

private ListView listView = null;
@SuppressWarnings("rawtypes")
private ArrayAdapter adapter = null;
List<String> data = null;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);

listView = (ListView) findViewById(R.id.listview);
data = new ArrayList<String>();
data.add("Activity_1");
data.add("Activity_2");
data.add("Activity_3");
adapter = new ArrayAdapter<String>(this, android.R.layout.simple_expandable_list_item_1,data);
listView.setAdapter(adapter);

listView.setOnItemClickListener(new OnItemClickListener() {

@Override
public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,
long arg3) {
Toast.makeText(getApplicationContext(), arg2+"", Toast.LENGTH_SHORT).show();
Intent intent = new Intent();
intent.setClass(MainActivity.this, Activity_1.class);
MainActivity.this.startActivity(intent);
finish();
}
});

}

}

public ArrayAdapter (Context context, int textViewResourceId, T[] objects)

context为当前的环境变量
textViewResourceId 可以显示一行文字的一个布局文件
T[] objects 一个List的集合，也就是数据源