模拟新浪微博随便看看栏目

来源：互联网发布：今天耐克淘宝抢购编辑：程序博客网时间：2024/05/18 20:13

我是信息工程系大二的在校学生，在这学期我们开设了了Android开发基础课程，最近感觉学习颇有成效，而这几天学习了ListView组件，感觉自己学的不错，就在此献丑分享一下。

测试图如下：

代码如下：

activity_main.xml
<?xml version="1.0"?>

-<LinearLayout android:layout_height="fill_parent" android:layout_width="fill_parent" xmlns:tools="http://schemas.android.com/tools" xmlns:android="http://schemas.android.com/apk/res/android">

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

</LinearLayout>

list_item.xml
<?xml version="1.0" encoding="UTF-8"?>

-<LinearLayout android:orientation="horizontal" android:layout_height="fill_parent" android:layout_width="fill_parent" xmlns:android="http://schemas.android.com/apk/res/android">

<ImageView
        android:id="@+id/photo"
        android:padding="10dp"
        android:layout_width="48dp"
        android:layout_height="48dp" />

</LinearLayout>

MainActivity.java
package cn.bzu.listview03;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ListView;
import android.widget.SimpleAdapter;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.Toast;

//第一步：extends Activity
public class MainActivity extends Activity {
// 第二步：定义数据集合
List<Map<String, ?>> data;
ListView listView;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
data = getData();
// 第三步：创建SimpleAdapter绑定数据
SimpleAdapter adapter = new SimpleAdapter(this, data,
R.layout.list_item, new String[] { "photo", "name", "publish",
"content" }, new int[] { R.id.photo, R.id.name,
R.id.publish, R.id.content });
listView=(ListView) this.findViewById(R.id.listView);
listView.setAdapter(adapter);
listView.setOnItemClickListener(new ListClickHandler());

}

//第四步：添加单击事件
private class ListClickHandler implements OnItemClickListener{

@Override
public void onItemClick(AdapterView<?> adapterView, View view, int position,
long id) {
Map<String, String> item=(Map<String, String>) data.get(position);
Toast.makeText(MainActivity.this, item.get("name").toString(), Toast.LENGTH_LONG).show();
}

}

private List<Map<String, ?>> getData() {
  List<Map<String, ?>> data = new ArrayList<Map<String, ?>>();
  Map<String, Object> item = new HashMap<String, Object>();
  item.put("photo", R.drawable.p1);
  item.put("name", "叶叶");
  item.put("publish", "1分钟前");
  item.put("content", "正在学习AndroidListView");
  data.add(item);
  item = new HashMap<String, Object>();
  item.put("photo", R.drawable.p2);
  item.put("name", "周周");
  item.put("publish", "10分钟前");
  item.put("content", "今天出去玩耍！");
  data.add(item);
  item = new HashMap<String, Object>();
  item.put("photo", R.drawable.p3);
  item.put("name", "晨晨");
  item.put("publish", "5分钟前");
  item.put("content", "今天真无聊！");
  data.add(item);
  item = new HashMap<String, Object>();
  item.put("photo", R.drawable.p4);
  item.put("name", "小杰");
  item.put("publish", "1分钟前");
  item.put("content", "今天出去旅游了！");
  data.add(item);
  item = new HashMap<String, Object>();
  item.put("photo", R.drawable.p5);
  item.put("name", "老刘");
  item.put("publish", "2分钟前");
  item.put("content", "天气好心情好！");
  data.add(item);
  item = new HashMap<String, Object>();
  item.put("photo", R.drawable.p6);
  item.put("name", "小张");
  item.put("publish", "10分钟前");
  item.put("content", "今天天气不错心情好好！");
  data.add(item);
  item = new HashMap<String, Object>();
  item.put("photo", R.drawable.p7);
  item.put("name", "小帅");
  item.put("publish", "2分钟前");
  item.put("content", "今天天气不错心情好好！");
  data.add(item);
  item = new HashMap<String, Object>();
  item.put("photo", R.drawable.p8);
  item.put("name", "聊聊");
  item.put("publish", "5分钟前");
  item.put("content", "天气就像我的心情！");
  data.add(item);
  item = new HashMap<String, Object>();
  item.put("photo", R.drawable.p9);
  item.put("name", "小超");
  item.put("publish", "4分钟前");
  item.put("content", "今天真高兴！");
  data.add(item);
  item = new HashMap<String, Object>();
  item.put("photo", R.drawable.p10);
  item.put("name", "洁洁");
  item.put("publish", "1分钟前");
  item.put("content", "今天天气不错心情好好！");
  data.add(item);
  return data;
}

@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.activity_main, menu);
return true;
}

}

strings

<?xml version="1.0"?>

-<resources>

<string name="app_name">ListView03</string>

<string name="hello_world">Hello world!</string>

<string name="menu_settings">Settings</string>

<string name="title_activity_main">新浪微博——随便看看</string>

</resources>

mytitlebar
<?xml version="1.0" encoding="UTF-8"?>

-<resources xmlns:android="http://schemas.android.com/apk/res/android">

-<style name="myTitleBg">

<item name="android:background">#FF0000</item>

</style>

-<style name="myTheme" parent="android:Theme">

<item name="android:windowNoTitle">false</item>

<item name="android:windowTitleSize">30dp</item>

<item name="android:background">#FF0000</item>

<item name="android:windowTitleBackgroundStyle">@style/myTitleBg</item>

</style>

</resources>

??

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