一、添加ListView控件：
<ListView
android:id="@+id/listView"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintTop_toTopOf="parent"
tools:layout_editor_absoluteX="1dp" />
二、类文件Country.java：
package com.july.listviewapp;
public class Country {
private String name;
private int icon;
public Country(String name,int icon){
this.name = name;
this.icon = icon;
}
public String getName(){
return name;
}
public void setName(String name){
this.name = name;
}
public int getIcon(){
return icon;
}
public void setIcon(int icon){
this.icon = icon;
}
}
三、子布局文件：
<?xml version="1.0"
