android内置搜索对话框（浮动搜索）例子

差点忘了，先上图看效果吧：

步骤：

（1）配置search bar的相关信息，新建一个位于res/xml下的一个searchable.xml的配置文件

<?xml version="1.0" encoding="utf-8"?>
<searchable
  xmlns:android="http://schemas.android.com/apk/res/android"
  android:hint="@string/searchHint" 
  android:searchMode="showSearchLabelAsBadge"
    android:searchSuggestAuthority="com.android.cbin.SearchSuggestionSampleProvider"
    android:searchSuggestSelection=" ? ">
  
</searchable>

（2）manifest.xml配置，搜索结果处理的Activity将出现两种情况，一种是从其他Activity中的search bar打开一个Activtiy

专门处理搜索结果，第二种是就在当前Activity就是处理结果的Activity，这配置里包含两种情况，自己可以看代码能分辨出来。

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
      package="com.android.cbin"
      android:versionCode="1"
      android:versionName="1.0">
    <application android:icon="@drawable/icon" android:label="@string/app_name">
        <activity android:name=".Main"
                  android:label="@string/app_name">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
            
            <meta-data android:name="android.app.default_searchable"
                       android:value=".SearchResultActivity" />
        </activity>
    <activity android:name="SearchResultActivity" android:launchMode="singleTop">
    
	    <intent-filter>
	    	<action android:name="android.intent.action.SEARCH"></action>
		</intent-filter>
		<meta-data android:resource="@xml/searchable" android:name="android.app.searchable"></meta-data>
	</activity>
<provider android:name="SearchSuggestionSampleProvider" android:authorities="com.android.cbin.SearchSuggestionSampleProvider"></provider>
</application>
    <uses-sdk android:minSdkVersion="7" />
</manifest> 

(3 )保存历史记录

上面authorities指向的都是name中所关联的SearchSuggestionSampleProvider，他是一个

SearchRecentSuggestionsProvider的子类

package com.android.search;
import android.content.SearchRecentSuggestionsProvider;
public class SearchSuggestionSampleProvider extends
		SearchRecentSuggestionsProvider {
	final static String AUTHORITY="com.android.search.SearchSuggestionSampleProvider";
	final static int MODE=DATABASE_MODE_QUERIES;
	
	public SearchSuggestionSampleProvider(){
		super();
		setupSuggestions(AUTHORITY, MODE);
	}
}

（4）为了能够使用search bar 我们必须重写Activity的onSearchRequested的方法，在界面上启动一个search bar

但是这个动作不会自动触发，必须通过一个按钮或者菜单的点击事件触发；

package com.android.search;
import com.android.search.R;
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
public class Main extends Activity implements OnClickListener{
    /** Called when the activity is first created. */
	private EditText etdata;
	private Button btnsearch;
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        
        findview();
    }
    
    private void findview(){
    	etdata=(EditText)findViewById(R.id.etdata);
    	btnsearch=(Button)findViewById(R.id.btncall);
    	btnsearch.setOnClickListener(this);
    }
	@Override
	public void onClick(View v) {
		// TODO Auto-generated method stub
		onSearchRequested();
	}
	
	@Override
	public boolean onSearchRequested(){
		
		String text=etdata.getText().toString();
		Bundle bundle=new Bundle();
		bundle.putString("data", text);
		
		//打开浮动搜索框（第一个参数默认添加到搜索框的值）
		//bundle为传递的数据
		startSearch("哈哈", false, bundle, false);
		//这个地方一定要返回真 如果只是super.onSearchRequested方法
		//不但onSearchRequested（搜索框默认值）无法添加到搜索框中
		//bundle也无法传递出去
		return true;
	}
    
}

（5） 在本Activity中搜索

package com.android.search;
import com.android.search.R;
import android.app.Activity;
import android.app.SearchManager;
import android.content.Intent;
import android.os.Bundle;
import android.provider.SearchRecentSuggestions;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.TextView;
public class SearchResultActivity extends Activity implements OnClickListener{
	private TextView tvquery,tvdata;
	private Button btnsearch;
	@Override
	protected void onCreate(Bundle savedInstanceState){
		super.onCreate(savedInstanceState);
		setContentView(R.layout.searchresult);
		
		tvquery=(TextView)findViewById(R.id.tvquery);
		tvdata=(TextView)findViewById(R.id.tvdata);
		btnsearch=(Button)findViewById(R.id.btnSearch);
		doSearchQuery();
		
		btnsearch.setOnClickListener(this);
	}
	
	public void doSearchQuery(){
		final Intent intent = getIntent();
		//获得搜索框里值
		String query=intent.getStringExtra(SearchManager.QUERY);
		tvquery.setText(query);
		//保存搜索记录
		SearchRecentSuggestions suggestions=new SearchRecentSuggestions(this,
				SearchSuggestionSampleProvider.AUTHORITY, SearchSuggestionSampleProvider.MODE);
		suggestions.saveRecentQuery(query, null);
		if(Intent.ACTION_SEARCH.equals(intent.getAction())){
			//获取传递的数据
			Bundle bundled=intent.getBundleExtra(SearchManager.APP_DATA);
			if(bundled!=null){
				String ttdata=bundled.getString("data");
				tvdata.setText(ttdata);
			}else{
				tvdata.setText("no data");
			}
		}
	}
	@Override
	public void onClick(View v) {
		// TODO Auto-generated method stub
		onSearchRequested();
	}
	
	@Override
	public boolean onSearchRequested(){
		
		startSearch("onNewIntent", false, null, false);
		return true;
	}
	
	@Override
	public void onNewIntent(Intent intent){
		super.onNewIntent(intent);
		//获得搜索框里值
		String query=intent.getStringExtra(SearchManager.QUERY);
		tvquery.setText(query);
		//保存搜索记录
		SearchRecentSuggestions suggestions=new SearchRecentSuggestions(this,
				SearchSuggestionSampleProvider.AUTHORITY, SearchSuggestionSampleProvider.MODE);
		suggestions.saveRecentQuery(query, null);
		if(Intent.ACTION_SEARCH.equals(intent.getAction())){
			//获取传递的数据
			Bundle bundled=intent.getBundleExtra(SearchManager.APP_DATA);
			if(bundled!=null){
				String ttdata=bundled.getString("data");
				tvdata.setText(ttdata);
			}else{
				tvdata.setText("no data");
			}
		}
	}
}