View(视图)——ListView之ArrayAdapter

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 1 <?xml version="1.0" encoding="utf-8"?>
 2 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
 3     xmlns:tools="http://schemas.android.com/tools"
 4     android:layout_width="match_parent"
 5     android:layout_height="match_parent"
 6     android:paddingBottom="@dimen/activity_vertical_margin"
 7     android:paddingLeft="@dimen/activity_horizontal_margin"
 8     android:paddingRight="@dimen/activity_horizontal_margin"
 9     android:paddingTop="@dimen/activity_vertical_margin"
10     tools:context="com.example.wang.testapp2.TestActivity7"
11     android:orientation="vertical">
12 
13 
14     <ListView
15         android:layout_width="match_parent"
16         android:layout_height="wrap_content"
17         android:id="@+id/lv_1" />
18 </LinearLayout>
ArrayAdapter.xml
1 <?xml version="1.0" encoding="utf-8"?>
2     <TextView xmlns:android="http://schemas.android.com/apk/res/android"
3     android:layout_width="match_parent"
4     android:layout_height="wrap_content"
5     android:textSize="20sp"
6     android:paddingTop="10dp"
7     android:paddingBottom="10dp"/>
arrayadapter.xml
 1 package com.example.wang.testapp2;
 2 
 3 import android.support.v7.app.AppCompatActivity;
 4 import android.os.Bundle;
 5 import android.widget.ArrayAdapter;
 6 import android.widget.ListView;
 7 
 8 public class TestActivity7 extends AppCompatActivity {
 9 
10     ListView lv_1;
11 
12     @Override
13     protected void onCreate(Bundle savedInstanceState) {
14         super.onCreate(savedInstanceState);
15         setContentView(R.layout.activity_test7);
16 
17         ListView lv_1=(ListView)findViewById(R.id.lv_1);
18 
19         //1.数据集合 Layout
20         String [] strings={"A1","A2","A3","A4","A5","A6","A7","A8","A9",
21                 "A1","A2","A3","A4","A5","A6","A7","A8","A9"};
22 
23         //2.创建Adapter
24         ArrayAdapter<String>  arrayAdapter=new ArrayAdapter<String>(this,R.layout.array_adapter,strings);
25 
26         //3.绑定到ListView
27         lv_1.setAdapter(arrayAdapter);
28 
29     }
30 }
ArrayAdapter.java

 

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