这次的作业没有用Adapter来做,而是在Activity中实现内容的传递,对于Adapter还不行。
1.第一个是ListView列表
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/activity_main"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context="com.example.administrator.list.MainActivity">
<ListView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="@+id/list_item">
</ListView>
</LinearLayout>
2.显示ListView的数据需要4行来显示数据所以创建四个TextView
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="match_parent"
android:layout_height="match_parent">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/name" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/age" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/address" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/email" />
</LinearLayout>
</LinearLayout>
3.在mainActivity中进行数据的传递
package com.example.administrator.list;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.widget.ListView;
import android.widget.SimpleAdapter;
import java.sql.RowId;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
public class MainActivity extends AppCompatActivity {
private String[] name={"蔡字坤","李华杰","张亮","陈旭","刘玄德"};
private int [] age={25,25,25,25,25};
private String[] adress={"厦门市","漳州市","厦门市","厦门市","福州市"};
private String[] email={"[email protected]","[email protected]","[email protected]","[email protected]","[email protected]"};
private ListView lv;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
List<Map<String, Object>> listems = new ArrayList<>();
for (int i = 0; i < name.length; i++) {
Map<String, Object> listem = new HashMap<>();
listem.put("name", "姓名:"+name[i]);
listem.put("age", "年龄:"+age[i]);
listem.put("adress", "地址:"+adress[i]);
listem.put("email","邮箱:"+email[i]);
listems.add(listem);
}
SimpleAdapter simplead = new SimpleAdapter(this, listems,R.layout.activity_list, new String[] { "name", "age", "adress","email" },
new int[] {R.id.name,R.id.age,R.id.address,R.id.email});
lv=(ListView)findViewById(R.id.list_item);
lv.setAdapter(simplead);
}
}
结果图如下: