package com.example.myapi.thirdbaidumap;import java.net.URISyntaxException;import java.util.ArrayList;import java.util.List;import android.app.Activity;import android.content.Context;import android.content.Intent;import android.content.pm.PackageInfo;import android.content.pm.PackageManager;import android.net.Uri;import android.os.Bundle;import android.util.Log;import android.view.View;import android.view.View.OnClickListener;import android.widget.Button;import com.example.myapi.R;/** * 测试程序跳转到第三方地图，并将数据传递过去。 * @author tony * */public class ThirdBaiduMapTestActivity extends Activity implements OnClickListener{    private Button btn_test;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.thirdbaidumaptest);        btn_test = (Button)findViewById(R.id.baidu_btn_test);        btn_test.setOnClickListener(this);    }    @Override    public void onClick(View v) {        switch(v.getId()){        case R.id.baidu_btn_test:            //如果已安装,                        if(isAvilible(this,"com.baidu.BaiduMap")){
   //传入指定应用包名                Intent intent = null;                try {//                    intent = Intent.getIntent("intent://map/direction?origin=latlng:34.264642646862,108.95108518068|name:我家&destination=大雁塔&mode=driving&region=西安&src=yourCompanyName|yourAppName#Intent;scheme=bdapp;package=com.baidu.BaiduMap;end");                    intent = Intent.getIntent("intent://map/direction?" +                            "origin=大柏树&" +                            "destination=江湾镇" +                            "&mode=driving&" +                            "region=上海市" +                            "&src=yourCompanyName|yourAppName#Intent;scheme=bdapp;package=com.baidu.BaiduMap;end");                    startActivity(intent); //启动调用                } catch (URISyntaxException e) {                    Log.e("intent", e.getMessage());                }            }else{
   //未安装                //market为路径，id为包名                //显示手机上所有的market商店                Uri uri = Uri.parse("market://details?id=com.baidu.BaiduMap");                Intent intent = new Intent(Intent.ACTION_VIEW, uri);                 startActivity(intent);             }            break;        }    }    /**     * 检查手机上是否安装了指定的软件     * @param context     * @param packageName：应用包名     * @return     */    private boolean isAvilible(Context context, String packageName){         //获取packagemanager         final PackageManager packageManager = context.getPackageManager();      //获取所有已安装程序的包信息         List
     
       packageInfos = packageManager.getInstalledPackages(0);      //用于存储所有已安装程序的包名         List
      
        packageNames = new ArrayList
       
        ();        //从pinfo中将包名字逐一取出，压入pName list中         if(packageInfos != null){             for(int i = 0; i < packageInfos.size(); i++){                 String packName = packageInfos.get(i).packageName;                 packageNames.add(packName);             }         }       //判断packageNames中是否有目标程序的包名，有TRUE，没有FALSE         return packageNames.contains(packageName);  } }