本文实例讲述了Android开发之搜索框SearchView用法。分享给大家供大家参考,具体如下:
介绍:
SearchView时搜索组件,可以让用户输入文字,见他输入匹配结果
效果:
基本的用法 我就不详细描述了
这里主要说一些我遇到的问题:
如下:
一、点击listView后 让文字自动补全到searchView上:
首先需要设置adapter 然后这只listView的点击事件:
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private final String[] mStrings = { "我爱Java" , "安卓无敌" , "好好学习" }; final ArrayAdapter adapter = new ArrayAdapter<String>( this ,android.R.layout.simple_list_item_1,mStrings); listView.setAdapter(adapter); |
然后对listView添加 item的监听事件:
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listView.setOnItemClickListener( new ListView.OnItemClickListener() { @Override public void onItemClick(AdapterView<?> parent, View view, int position, long id) { Object string = adapter.getItem(position); searchView.setQuery(string.toString(), true ); } }); |
二、删除listView自带过滤器的黑框:
在 onQueryTextChange
对adapter设置:adapter.getFilter().filter(newText.toString());
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@Override public boolean onQueryTextChange(String newText) { //如果newText长度不为0 if (TextUtils.isEmpty(newText)){ listView.clearTextFilter(); } else { listView.setFilterText(newText); //adapter.getFilter().filter(newText.toString());//替换成本句后消失黑框!!! } return true ; } |
下面给出效果图的的完整实现方法:
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public class MainActivity extends Activity { private SearchView searchView; private ListView listView; //定义自动完成的列表 private final String[] mStrings = { "我爱Java" , "安卓无敌" , "好好学习" }; @Override protected void onCreate(Bundle savedInstanceState) { super .onCreate(savedInstanceState); setContentView(R.layout.activity_main); listView = (ListView) findViewById(R.id.lv); final ArrayAdapter adapter = new ArrayAdapter<String>( this ,android.R.layout.simple_list_item_1,mStrings); listView.setAdapter(adapter); //为ListView启动过滤 listView.setTextFilterEnabled( true ); searchView = (SearchView) findViewById(R.id.sv); //设置SearchView自动缩小为图标 searchView.setIconifiedByDefault( false ); //设为true则搜索栏 缩小成俄日一个图标点击展开 //设置该SearchView显示搜索按钮 searchView.setSubmitButtonEnabled( true ); //设置默认提示文字 searchView.setQueryHint( "输入您想查找的内容" ); //配置监听器 searchView.setOnQueryTextListener( new SearchView.OnQueryTextListener() { //点击搜索按钮时触发 @Override public boolean onQueryTextSubmit(String query) { //此处添加查询开始后的具体时间和方法 Toast.makeText(MainActivity. this , "you choose:" + query,Toast.LENGTH_SHORT).show(); return false ; } @Override public boolean onQueryTextChange(String newText) { //如果newText长度不为0 if (TextUtils.isEmpty(newText)){ listView.clearTextFilter(); } else { listView.setFilterText(newText); // adapter.getFilter().filter(newText.toString());//替换成本句后消失黑框!!! } return true ; } }); listView.setOnItemClickListener( new ListView.OnItemClickListener() { @Override public void onItemClick(AdapterView<?> parent, View view, int position, long id) { Object string = adapter.getItem(position); searchView.setQuery(string.toString(), true ); } }); } } |
最后给出布局如下:
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<? xml version = "1.0" encoding = "utf-8" ?> < LinearLayout xmlns:android = "http://schemas.android.com/apk/res/android" android:layout_width = "match_parent" android:layout_height = "match_parent" android:orientation = "vertical" > <!--定义一个SearchView--> < SearchView android:id = "@+id/sv" android:layout_width = "match_parent" android:layout_height = "wrap_content" /> <!--定义自动完成的ListView--> < ListView android:id = "@+id/lv" android:layout_width = "match_parent" android:layout_height = "0dp" android:layout_weight = "1" /> </ LinearLayout > |
希望本文所述对大家Android程序设计有所帮助。
原文链接:https://blog.csdn.net/qq_43377749/article/details/85004025