<meta-data android:name="com.amap.api.v2.apikey"
android:value="你申請的key" />
<service android:name="com.amap.api.location.APSService"></service>

<!--允許程序打開網(wǎng)絡套接字-->
 <uses-permission android:name="android.permission.INTERNET" />
 <!--允許程序設置內(nèi)置sd卡的寫權限-->
 <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
 <!--允許程序獲取網(wǎng)絡狀態(tài)-->
 <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
 <!--允許程序訪問WiFi網(wǎng)絡信息-->
 <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
 <!--允許程序讀寫手機狀態(tài)和身份-->
 <uses-permission android:name="android.permission.READ_PHONE_STATE" />
 <!--用于進行網(wǎng)絡定位-->
 <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"></uses-permission>
 <!--用于訪問GPS定位-->
 <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"></uses-permission>
 <!--用于獲取wifi的獲取權限，wifi信息會用來進行網(wǎng)絡定位-->
 <uses-permission android:name="android.permission.CHANGE_WIFI_STATE"></uses-permission>
 <!--用于讀取手機當前的狀態(tài)-->
 <uses-permission android:name="android.permission.READ_PHONE_STATE"></uses-permission>
 <!--用于申請調用A-GPS模塊-->
 <uses-permission android:name="android.permission.ACCESS_LOCATION_EXTRA_COMMANDS"/>
 <!--獲取運營商信息，用于支持提供運營商信息相關的接口-->
 <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
 <!--用于訪問wifi網(wǎng)絡信息，wifi信息會用于進行網(wǎng)絡定位-->
 <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
 <!--這個權限用于獲取wifi的獲取權限，wifi信息會用來進行網(wǎng)絡定位-->
 <uses-permission android:name="android.permission.CHANGE_WIFI_STATE" />
 <!--用于訪問網(wǎng)絡，網(wǎng)絡定位需要上網(wǎng)-->
 <uses-permission android:name="android.permission.INTERNET" />
 <!--用于讀取手機當前的狀態(tài)-->
 <uses-permission android:name="android.permission.READ_PHONE_STATE" />
 <!--寫入擴展存儲，向擴展卡寫入數(shù)據(jù)，用于寫入緩存定位數(shù)據(jù)-->
 <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />

<com.amap.api.maps.MapView
 android:id="@+id/map"
 android:layout_width="match_parent"
 android:layout_height="match_parent"></com.amap.api.maps.MapView>

import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;
import android.widget.Toast;
 
import com.amap.api.location.AMapLocation;
import com.amap.api.location.AMapLocationClient;
import com.amap.api.location.AMapLocationClientOption;
import com.amap.api.location.AMapLocationListener;
import com.amap.api.maps.AMap;
import com.amap.api.maps.CameraUpdateFactory;
import com.amap.api.maps.LocationSource;
import com.amap.api.maps.MapView;
import com.amap.api.maps.UiSettings;
import com.amap.api.maps.model.LatLng;
 
import java.text.SimpleDateFormat;
import java.util.Date;
 
public class MainActivity extends AppCompatActivity implements LocationSource, AMapLocationListener {
 
 //AMap是地圖對象
 private AMap aMap;
 private MapView mapView;
 //聲明AMapLocationClient類對象，定位發(fā)起端
 private AMapLocationClient mLocationClient = null;
 //聲明mLocationOption對象，定位參數(shù)
 public AMapLocationClientOption mLocationOption = null;
 //聲明mListener對象，定位監(jiān)聽器
 private OnLocationChangedListener mListener = null;
 //標識，用于判斷是否只顯示一次定位信息和用戶重新定位
 private boolean isFirstLoc = true;
 
 @Override
 protected void onCreate(Bundle savedInstanceState) {
 super.onCreate(savedInstanceState);
 setContentView(R.layout.activity_main);
 //獲取地圖控件引用
 mapView = (MapView) findViewById(R.id.map);
 //在activity執(zhí)行onCreate時執(zhí)行mMapView.onCreate(savedInstanceState)，實現(xiàn)地圖生命周期管理
 mapView.onCreate(savedInstanceState);
 if (aMap == null) {
 aMap = mapView.getMap();
 //設置顯示定位按鈕 并且可以點擊
 UiSettings settings = aMap.getUiSettings();
 aMap.setLocationSource(this);//設置了定位的監(jiān)聽
 // 是否顯示定位按鈕
 settings.setMyLocationButtonEnabled(true);
 aMap.setMyLocationEnabled(true);//顯示定位層并且可以觸發(fā)定位,默認是flase
 }
 //開始定位
 location();
 }
 
 private void location() {
 //初始化定位
 mLocationClient = new AMapLocationClient(getApplicationContext());
 //設置定位回調監(jiān)聽
 mLocationClient.setLocationListener(this);
 //初始化定位參數(shù)
 mLocationOption = new AMapLocationClientOption();
 //設置定位模式為Hight_Accuracy高精度模式，Battery_Saving為低功耗模式，Device_Sensors是僅設備模式
 mLocationOption.setLocationMode(AMapLocationClientOption.AMapLocationMode.Hight_Accuracy);
 //設置是否返回地址信息（默認返回地址信息）
 mLocationOption.setNeedAddress(true);
 //設置是否只定位一次,默認為false
 mLocationOption.setOnceLocation(false);
 //設置是否強制刷新WIFI，默認為強制刷新
 mLocationOption.setWifiActiveScan(true);
 //設置是否允許模擬位置,默認為false，不允許模擬位置
 mLocationOption.setMockEnable(false);
 //設置定位間隔,單位毫秒,默認為2000ms
 mLocationOption.setInterval(2000);
 //給定位客戶端對象設置定位參數(shù)
 mLocationClient.setLocationOption(mLocationOption);
 //啟動定位
 mLocationClient.startLocation();
 }
 
 @Override
 protected void onDestroy() {
 super.onDestroy();
 //在activity執(zhí)行onDestroy時執(zhí)行mMapView.onDestroy()，實現(xiàn)地圖生命周期管理
 mapView.onDestroy();
 mLocationClient.stopLocation();//停止定位
 mLocationClient.onDestroy();//銷毀定位客戶端。
 }
 
 @Override
 protected void onResume() {
 super.onResume();
 //在activity執(zhí)行onResume時執(zhí)行mMapView.onResume ()，實現(xiàn)地圖生命周期管理
 mapView.onResume();
 }
 
 @Override
 protected void onPause() {
 super.onPause();
 //在activity執(zhí)行onPause時執(zhí)行mMapView.onPause ()，實現(xiàn)地圖生命周期管理
 mapView.onPause();
 }
 
 @Override
 protected void onSaveInstanceState(Bundle outState) {
 super.onSaveInstanceState(outState);
 //在activity執(zhí)行onSaveInstanceState時執(zhí)行mMapView.onSaveInstanceState (outState)，實現(xiàn)地圖生命周期管理
 mapView.onSaveInstanceState(outState);
 }
 
 @Override
 public void onLocationChanged(AMapLocation aMapLocation) {
 if (aMapLocation != null) {
 if (aMapLocation.getErrorCode() == 0) {
 //定位成功回調信息，設置相關消息
 aMapLocation.getLocationType();//獲取當前定位結果來源，如網(wǎng)絡定位結果，詳見官方定位類型表
 aMapLocation.getLatitude();//獲取緯度
 aMapLocation.getLongitude();//獲取經(jīng)度
 aMapLocation.getAccuracy();//獲取精度信息
 SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
 Date date = new Date(aMapLocation.getTime());
 df.format(date);//定位時間
 aMapLocation.getAddress();//地址，如果option中設置isNeedAddress為false，則沒有此結果，網(wǎng)絡定位結果中會有地址信息，GPS定位不返回地址信息。
 aMapLocation.getCountry();//國家信息
 aMapLocation.getProvince();//省信息
 aMapLocation.getCity();//城市信息
 aMapLocation.getDistrict();//城區(qū)信息
 aMapLocation.getStreet();//街道信息
 aMapLocation.getStreetNum();//街道門牌號信息
 aMapLocation.getCityCode();//城市編碼
 aMapLocation.getAdCode();//地區(qū)編碼
 
 // 如果不設置標志位，此時再拖動地圖時，它會不斷將地圖移動到當前的位置
 if (isFirstLoc) {
  //設置縮放級別
  aMap.moveCamera(CameraUpdateFactory.zoomTo(17));
  //將地圖移動到定位點
  aMap.moveCamera(CameraUpdateFactory.changeLatLng(new LatLng(aMapLocation.getLatitude(), aMapLocation.getLongitude())));
  //點擊定位按鈕 能夠將地圖的中心移動到定位點
  mListener.onLocationChanged(aMapLocation);
  //添加圖釘
  // aMap.addMarker(getMarkerOptions(amapLocation));
  //獲取定位信息
  StringBuffer buffer = new StringBuffer();
  buffer.append(aMapLocation.getCountry() + ""
  + aMapLocation.getProvince() + ""
  + aMapLocation.getCity() + ""
  + aMapLocation.getProvince() + ""
  + aMapLocation.getDistrict() + ""
  + aMapLocation.getStreet() + ""
  + aMapLocation.getStreetNum());
  Toast.makeText(getApplicationContext(), buffer.toString(), Toast.LENGTH_LONG).show();
  isFirstLoc = false;
 }
 
 
 } else {
 //顯示錯誤信息ErrCode是錯誤碼，errInfo是錯誤信息，詳見錯誤碼表。
 Log.e("AmapError", "location Error, ErrCode:"
  + aMapLocation.getErrorCode() + ", errInfo:"
  + aMapLocation.getErrorInfo());
 Toast.makeText(getApplicationContext(), "定位失敗", Toast.LENGTH_LONG).show();
 }
 }
 }
 
 
 @Override
 public void activate(OnLocationChangedListener onLocationChangedListener) {
 mListener = onLocationChangedListener;
 }
 
 @Override
 public void deactivate() {
 mListener = null;
 }
}