冲刺（四）

ListView用法，适配器的简单使用代码

package com.example.twj.testyixue;

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

/**
 * Created by t'w'j on 2020/4/18.
 */
public class ListViewDemoActivity extends Activity {
    private ListView mphoneBookListView;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_listview_demo);

        mphoneBookListView=(ListView)findViewById(R.id.list_view);

        PhoneBookAdapter phoneBookAdapter=new PhoneBookAdapter(ListViewDemoActivity.this);
        mphoneBookListView.setAdapter(phoneBookAdapter);

    }
}

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="horizontal"
    android:padding="15dip" >



    <TextView
        android:id="@+id/time"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_centerVertical="true"
        android:gravity="center" />

</RelativeLayout>