Android 下拉列表Spinner 使用

1、布局文件

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    tools:context="com.example.helloword.DropListActivity" >

    
    <Spinner 
             android:id="@+id/spinner1"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
             android:entries="@array/ctype" />
    
    <Spinner android:id="@+id/spinner2"
             android:layout_width="wrap_content" 
             android:layout_height="wrap_content"/>
    
    

</LinearLayout>

2、arrays.xml

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <string-array name="ctype">
        <item>全部</item>
        <item>电影</item>
        <item>书籍</item>
        <item>体育</item>
        <item>文娱</item>
        <item>生活</item>
    </string-array>
</resources>

3、Activity

package com.example.helloword;


import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.ArrayAdapter;
import android.widget.Spinner;

public class DropListActivity  extends Activity implements View.OnClickListener{

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_drop_list);
        
        String[] arrayStrings = new String[]{"全部","海贼王","火影忍者","龙珠"};
        
        ArrayAdapter<String> adapter = new ArrayAdapter<String>(this, android.R.layout.simple_spinner_item,arrayStrings);
        adapter.setDropDownViewResource(android.R.layout.simple_spinner_item);
        
        Spinner spinner = findViewById(R.id.spinner2);
        
        spinner.setAdapter(adapter);
    }

    @Override
    public void onPointerCaptureChanged(boolean hasCapture) {
        // TODO Auto-generated method stub
        
    }

    @Override
    public void onClick(View arg0) {
        // TODO Auto-generated method stub
        
    }

    
}