界面操作:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity">
<TextView
android:id ="@+id/text"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="登陆记录"
android:textSize="20dp"
/>
<ListView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@+id/text"
android:id="@+id/list"
>
</ListView>
</RelativeLayout>
后台实现:
package com.example.abaka.myapplication;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.TextView;
import java.util.ArrayList;
import java.util.List;
public class MainActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
final TextView textView = (TextView)findViewById(R.id.text);
ListView listView=(ListView)findViewById(R.id.list);
List<String> list = new ArrayList<String>();
list.add("西安市未央区");
list.add("西安市未央区");
list.add("西安市未央区");
list.add("西安市未央区");
list.add("西安市未央区");
list.add("西安市未央区");
///可以一直添加,在真机运行后可以下拉列表
ArrayAdapter<String> adapter=new ArrayAdapter<String>(this,android.R.layout.simple_list_item_1,list);
listView.setAdapter(adapter);
}
}