Android入门之AutoCompleteTextView（纯java）

最新推荐文章于 2021-05-25 14:19:08 发布

李工电子说

最新推荐文章于 2021-05-25 14:19:08 发布

阅读量1.9k

点赞数

CC 4.0 BY-SA版权

分类专栏： Android 文章标签： android java dropdown import string dialog

本文链接：https://blog.youkuaiyun.com/mrlixirong/article/details/6756371

Android 专栏收录该内容

68 篇文章

订阅专栏

本文通过一个具体的示例展示了如何在Android应用中使用AutoCompleteTextView组件。该组件能够提供自动补全的功能，当用户输入文字时，会从预设的数据集中提供匹配建议。示例中包括了设置布局、绑定数据源及添加点击监听器等关键步骤。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.*;
import android.widget.AdapterView.OnItemClickListener;

public class AutoCompleteTextViewTest extends Activity {
	private LinearLayout mainLayout=null;
	private TextView tv0=null;
	private TextView tv1=null;
	private AutoCompleteTextView actv1=null;
	private TextView tv2=null;
	private AutoCompleteTextView actv2=null;
	
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        mainLayout_init();
        setContentView(mainLayout);
    }
    /*mainLayout初始化*/
    void mainLayout_init(){
    	mainLayout=new LinearLayout(this);
    	LinearLayout.LayoutParams lp=new LinearLayout.LayoutParams(-1, -1);
    	mainLayout.setLayoutParams(lp);
    	mainLayout.setOrientation(LinearLayout.VERTICAL);
    	tv0_init();
    	tv1_init();
    	actv1_init();
    	tv2_init();
    	actv2_init();
    	mainLayout.addView(tv0);
    	mainLayout.addView(tv1);
    	mainLayout.addView(actv1);
    	mainLayout.addView(tv2);
    	mainLayout.addView(actv2);
    }
    /*tv0初始化*/
    void tv0_init(){
    	tv0=new TextView(this);
    	tv0.setText("这里显示操作结果\n");
    	tv0.append("----------华丽的分割线----------\n");
    }
    /*tv1初始化*/
    void tv1_init(){
    	tv1=new TextView(this);
    	tv1.setText("这是英文自动填表");
    }
    /*actv1初始化*/
    void actv1_init(){
    	actv1=new AutoCompleteTextView(this);
    	LinearLayout.LayoutParams lp=new LinearLayout.LayoutParams(-1,-2);
    	actv1.setLayoutParams(lp);
    	//字符数组是内容
        String str[]={"beijing","shanghai","guangzhou","shenzhen","xiamen","beijing1","beijing2","beijing3",};
        //ArrayAdapter aa是中间联系设备
        ArrayAdapter<String> aa=new ArrayAdapter<String>(this,android.R.layout.simple_dropdown_item_1line,str);
        //绑定
        actv1.setAdapter(aa);
        //监听
        OnItemClickListener oicl=new OnItemClickListener(){
			public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,long arg3) {
				tv0.setText("您选择了"+actv1.getText()+"\n");
		    	tv0.append("----------华丽的分割线----------\n");
			}
        };
        actv1.setOnItemClickListener(oicl);
    }
    /*tv2初始化*/
    void tv2_init(){
    	tv2=new TextView(this);
    	tv2.setText("这是中文的自动填表");
    }
    /*actv2初始化*/ 
    void actv2_init(){
    	actv2=new AutoCompleteTextView(this);
    	LinearLayout.LayoutParams lp=new LinearLayout.LayoutParams(-1,-2);
    	actv2.setLayoutParams(lp);
        String str[]={"北京","上海","广州","深圳","厦门","北京1","北京2","北京3",};
        ArrayAdapter<String> aa=new ArrayAdapter<String>(this,android.R.layout.select_dialog_item,str);
        actv2.setAdapter(aa);
        //监听
        OnItemClickListener oicl=new OnItemClickListener(){
			public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,long arg3) {
				tv0.setText("您选择了"+actv2.getText()+"\n");
		    	tv0.append("----------华丽的分割线----------\n");
			}
        };
        actv2.setOnItemClickListener(oicl);
    }
}