Android版高德导航应用开发小结

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软硬件环境

Macbook Pro MGX 72
Android Studio 1.3.1
红米Note增强版

准备工作

上高德官网LBS开放平台注册帐户
下载SDK和Demo程序
地址: http://lbs.amap.com/api/android-navi-sdk/down/
给自己的应用申请Key
这个具体步骤高德的官网上都有详细的说明及操作步骤，就不多说了，照着做就行了

Android Studio运行高德导航Demo

修改AndroidManifest.xml

<meta-data    android:name="com.amap.api.v2.apikey"    android:value="4e8ee81efa8c19c8d9e0b55761f6962d" /><uses-permission android:name="android.permission.INTERNET" /><uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" /><uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" /><uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" /><uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" /><uses-permission android:name="android.permission.READ_PHONE_STATE" /><uses-permission android:name="android.permission.CHANGE_WIFI_STATE" /><uses-permission android:name="android.permission.ACCESS_WIFI_STATE" /><uses-permission android:name="android.permission.CHANGE_CONFIGURATION" /><uses-permission android:name="android.permission.WAKE_LOCK" /><uses-permission android:name="android.permission.WRITE_SETTINGS" /><uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />

常见错误及解决办法

android SDK V4和V7冲突？

首先在app下的build.gradle文件中删除provided files(‘libs/android-support-v4.jar’)或者通过File菜单下的Project Structure中的app模块中的Dependencies选项删除。然后在工程libs目录下删除android-support-v4.jar文件。

工程运行后报TTSController初始化失败？
我的做法是把libs中的so库全部copy出来，放在jniLibs文件夹中，jniLibs是自己创建的，跟libs在同一层目录下(其它目录也可以)，然后在build.gradle中声明下，以下这段语句放在android标签下即可
```
sourceSets {main {    jniLibs.srcDirs = ['jniLibs']    }}
```

大功告成，来张图秀一下

进行一次定位

   private LocationManagerProxy mLocationManager;  private AMapLocationListener mLocationListener = new AMapLocationListener() {   @Override   public void onStatusChanged(String provider, int status, Bundle extras) {       // TODO Auto-generated method stub   }   @Override   public void onProviderEnabled(String provider) {       // TODO Auto-generated method stub   }   @Override   public void onProviderDisabled(String provider) {       // TODO Auto-generated method stub   }   @Override   public void onLocationChanged(Location location) {       // TODO Auto-generated method stub   }   @Override   public void onLocationChanged(AMapLocation location) {       if (location != null && location.getAMapException().getErrorCode() == 0) {           Log.e(TAG, "GPS: " + location.getLatitude() + "," + location.getLongitude());           LatLng latLng = new LatLng(mStartPoint.getLatitude(), mStartPoint.getLongitude());           MarkerOptions markerOptions = new MarkerOptions();           markerOptions.position(latLng);           markerOptions.title("您当前的位置");           mAmap.addMarker(markerOptions);           mAmap.moveCamera(CameraUpdateFactory.newLatLngZoom(latLng, 12));       } else {           showToast("定位出现异常,请检查网络连接.");           mGPSProgressDialog.dismiss();           //以上海市人民政府为中心显示定位时出错的初始地图           LatLng latLng = new LatLng(31.230429, 121.473709);           mAmap.moveCamera(CameraUpdateFactory.newLatLngZoom(latLng, 12));       }   }};mLocationManager = LocationManagerProxy.getInstance(this);mLocationManger.requestLocationData(LocationProviderProxy.AMapNetwork, -1, 15, mLocationListener);

兴趣点(Point Of Interest)查询

应用场景一般是这样的: 在输入框中输入关键字如”东方明珠”,系统则提供所有跟”东方明珠”相关的地址信息供用户选择。以下代码是在一个输入框中输入一字符串，经过查询POI Search将相关结果返回，以listview的形式显示出来，经用户点击后将具体的信息写入到输入框中。原来项目需要，这里还记录了对应地址的经纬度数据。

                    //输入框是一个EditText                mEndPointText.addTextChangedListener(new TextWatcher() {                @Override                public void beforeTextChanged(CharSequence s, int start, int count, int after) {                }                @Override                public void onTextChanged(CharSequence s, int start, int before, int count) {                    String newText = s.toString().trim();                    PoiSearch.Query query = new PoiSearch.Query(newText, "", "021");                    query.setPageSize(10);                    query.setPageNum(1);                    PoiSearch poiSearch = new PoiSearch(NaviStartActivity.this, query);                    poiSearch.setOnPoiSearchListener(new PoiSearch.OnPoiSearchListener() {                        @Override                        public void onPoiSearched(PoiResult poiResult, int i) {                            if (i == 0) {                                for (int j = 0; j < poiResult.getPois().size(); j++) {                                    if (!poiResult.getPois().get(j).getSnippet().isEmpty()) {                                        poiAddressList.add(poiResult.getPois().get(j).getSnippet());                                        poiLatLonList.add(poiResult.getPois().get(j).getLatLonPoint());                                    }                                }                                poiAddressArray = new String[poiAddressList.size()];                                poiAddressArray = poiAddressList.toArray(poiAddressArray);                                poiLatLngArray = new LatLonPoint[poiLatLonList.size()];                                poiLatLngArray = poiLatLonList.toArray(poiLatLngArray);                                adapterTextview_poi_result = new AdapterTextview(NaviStartActivity.this, poiAddressArray);                                listView_poi_result.setAdapter(adapterTextview_poi_result);                                adapterTextview_poi_result.notifyDataSetChanged();                                poiAddressList.clear();                                poiLatLonList.clear();                            }                        }                        @Override                        public void onPoiItemDetailSearched(PoiItemDetail poiItemDetail, int i) {                        }                    });                    listView_poi_result.setOnItemClickListener(new OnItemClickListener() {                        @Override                        public void onItemClick(AdapterView<?> parent, View view, int position, long id) {                            mEndPoints.clear();                            mEndPointText.setText(poiAddressArray[position]);                            mEndPoint = new NaviLatLng(poiLatLngArray[position].getLatitude(), poiLatLngArray[position].getLongitude());                            mEndPoints.add(mEndPoint);                        }                    });                    poiSearch.searchPOIAsyn();                }                @Override                public void afterTextChanged(Editable s) {                }            });

地理编码

地理编码，通俗来讲就是将具体的地址(如xx区xx路)转换成经纬度数据，来看代码

GeocodeSearch geocodeSearch = new GeocodeSearch(this);    geocodeSearch.setOnGeocodeSearchListener(new GeocodeSearch.OnGeocodeSearchListener() {        @Override        public void onRegeocodeSearched(RegeocodeResult regeocodeResult, int i) {            //逆地理编码，经纬度转换成地址        }        @Override        public void onGeocodeSearched(GeocodeResult geocodeResult, int i) {            //地理编码，地址转换成经纬度            if (i == 0) {                if (geocodeResult != null && geocodeResult.getGeocodeAddressList() != null && geocodeResult.getGeocodeAddressList().size() > 0) {                    GeocodeAddress geocodeAddress = geocodeResult.getGeocodeAddressList().get(0);                    Log.e(TAG, "destination position: " + geocodeAddress.getLatLonPoint());                }            } else {                Toast.makeText(NaviStartActivity.this, "该地址不存在!", Toast.LENGTH_SHORT).show();            }        }    });    //以上海地区地址的查询为例,城市代码可以查看高德的文档    GeocodeQuery geocodeQuery = new GeocodeQuery(address, "021");    geocodeSearch.getFromLocationNameAsyn(geocodeQuery);

完整导航Demo的下载地址

http://download.csdn.net/detail/djstavav/9016909

Github地址

https://github.com/djstava/DJAmap

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