Android應用中使用ListView實作資料清單顯示（傳智播客視訊筆記）

Android應用中使用ListView實作資料清單顯示

UsingListViewActivity.java源碼：

package .sinaapp.ssun.listview;

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

import android.app.Activity;
import android.os.Bundle;
import android.widget.ListView;
import android.widget.SimpleAdapter;

public class UsingListViewActivity extends Activity {
    private List<Person> persons = new ArrayList<Person>();
    private ListView listView; 
    
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        listView = (ListView) this.findViewById(R.id.listView);
        
        for(int i=0; i<10; i++){
            Person p = new Person("SSUN-"+i,"12340-"+i,i*100);
            persons.add(p);
        }
        
        show();       
    }

    private void show() {
        List<HashMap<String, Object>> data = new ArrayList<HashMap<String,Object>>();
        
        for(Person p : persons){
            HashMap<String, Object> hm = new HashMap<String, Object>(); 
            hm.put("name", p.getName());
            hm.put("phone", p.getPhone());
            hm.put("amount", p.getAmount());
            data.add(hm);
        }
        
        SimpleAdapter adapter = new SimpleAdapter(this,data,R.layout.item, 
                    new String[]{"name","phone","amount"},
                    new int[]{R.id.name,R.id.phone,R.id.amount});
        listView.setAdapter(adapter);
    }
}

class Person{
    private String name;
    private String phone;
    private Integer amount;
    
    public Person(String name,String phone,Integer amount){
        this.name = name;
        this.phone = phone;
        this.amount = amount;
    }
    
    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getPhone() {
        return phone;
    }

    public void setPhone(String phone) {
        this.phone = phone;
    }

    public Integer getAmount() {
        return amount;
    }

    public void setAmount(Integer amount) {
        this.amount = amount;
    }
}


      

main.xml檔案：

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

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal" >    
        
        <TextView
            android:textSize="22sp"
            android:layout_width="100dp"
            android:layout_height="wrap_content"
            android:text="@string/name" />
    
        <TextView
            android:textSize="22sp"
            android:layout_width="100dp"
            android:layout_height="wrap_content"
            android:text="@string/phone" />
    
        <TextView
            android:textSize="22sp"
            android:layout_width="100dp"
            android:layout_height="wrap_content"
            android:text="@string/amount" />
    </LinearLayout>

    <ListView
        android:id="@+id/listView"
        android:layout_width="match_parent"
        android:layout_height="wrap_content" >
    </ListView>
        
</LinearLayout>      

item.xml檔案：

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

    <TextView
        android:id="@+id/name"
        android:layout_width="100dp"
        android:layout_height="wrap_content"
        android:textSize="22sp" />

    <TextView
        android:id="@+id/phone"
        android:layout_width="100dp"
        android:layout_height="wrap_content"
        android:textSize="22sp" />

    <TextView
        android:id="@+id/amount"
        android:layout_width="100dp"
        android:layout_height="wrap_content"
        android:textSize="22sp" />

</LinearLayout>      

string.xml檔案：

<?xml version="1.0" encoding="utf-8"?>
<resources>

    <string name="app_name">ListView應用</string>
    <string name="name">姓名</string>
    <string name="phone">電話</string>
    <string name="amount">金額</string>
    

</resources>