高德定位

import android.content.Context;import android.content.pm.PackageInfo;import android.content.pm.PackageManager;import android.os.Bundle;import android.support.v7.app.AppCompatActivity;import android.util.Log;import android.widget.CompoundButton;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.LocationSource;import com.amap.api.maps.MapView;

import java.security.MessageDigest;import java.security.NoSuchAlgorithmException;import java.util.Locale;

public class MainActivity extends AppCompatActivity implements LocationSource,AMapLocationListener,        CompoundButton.OnCheckedChangeListener {

    private MapView mMapView;    private AMap aMap;    private AMapLocationClient mlocationClient;    private AMapLocationClientOption mLocationOption;    private OnLocationChangedListener mListener;

    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);

        mMapView = (MapView) findViewById(R.id.map);        mMapView.onCreate(savedInstanceState);

        //设置监听        aMap = mMapView.getMap();        aMap.setLocationSource(this);        aMap.getUiSettings().setMyLocationButtonEnabled(true);//设置默认按钮是否显示        aMap.setMyLocationEnabled(true);        aMap.setMyLocationType(AMap.LOCATION_TYPE_LOCATE);//设置定位的模式为定位模式

    }

    @Override    public void onLocationChanged(AMapLocation aMapLocation) {        Log.i("TAG","onLocationChanged"+1);

        if (mListener != null && aMapLocation != null) {            if (aMapLocation != null                    && aMapLocation.getErrorCode() == 0) {                Log.i("TAG", "定位成功");                // Toast.makeText(MainActivity.this, "定位成功", Toast.LENGTH_LONG).show();                mListener.onLocationChanged(aMapLocation);// 显示系统小蓝点            } else {                String errText = "定位失败," + aMapLocation.getErrorCode() + ": " + aMapLocation.getErrorInfo();

                Toast.makeText(MainActivity.this, errText, Toast.LENGTH_LONG).show();                //Log.e("AmapErr", errText);            }        }

    }

    @Override    public void activate(OnLocationChangedListener onLocationChangedListener) {        Log.i("TAG","activate"+2);        mListener = onLocationChangedListener;        if (mlocationClient == null) {            mlocationClient = new AMapLocationClient(this);            mLocationOption = new AMapLocationClientOption();            //设置定位监听            mlocationClient.setLocationListener(this);            //设置为高精度定位模式            mLocationOption.setLocationMode(AMapLocationClientOption.AMapLocationMode.Hight_Accuracy);            //设置定位参数            mlocationClient.setLocationOption(mLocationOption);            // 此方法为每隔固定时间会发起一次定位请求，为了减少电量消耗或网络流量消耗，            // 注意设置合适的定位时间的间隔（最小间隔支持为2000ms），并且在合适时间调用stopLocation()方法来取消定位请求            // 在定位结束后，在合适的生命周期调用onDestroy()方法            // 在单次定位情况下，定位无论成功与否，都无需调用stopLocation()方法移除请求，定位sdk内部会移除            mlocationClient.startLocation();        }    }

    @Override    public void deactivate() {        Log.i("TAG","deactivate"+3);        mListener = null;        if (mlocationClient != null) {            mlocationClient.stopLocation();            mlocationClient.onDestroy();        }        mlocationClient = null;

    }

    @Override    public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {

       Log.i("TAG","onCheckedChanged"+4);        aMap.setMyLocationType(AMap.LOCATION_TYPE_LOCATE);    }

    public String sHA1(Context context) {        Log.i("TAG","sHA1"+5);        try {            PackageInfo info = context.getPackageManager().getPackageInfo(                    context.getPackageName(), PackageManager.GET_SIGNATURES);            byte[] cert = info.signatures[0].toByteArray();            MessageDigest md = MessageDigest.getInstance("SHA1");            byte[] publicKey = md.digest(cert);            StringBuffer hexString = new StringBuffer();            for (int i = 0; i < publicKey.length; i++) {                String appendString = Integer.toHexString(0xFF & publicKey[i])                        .toUpperCase(Locale.US);                if (appendString.length() == 1)                    hexString.append("0");                hexString.append(appendString);                hexString.append(":");            }            return hexString.toString();        } catch (PackageManager.NameNotFoundException e) {            e.printStackTrace();        } catch (NoSuchAlgorithmException e) {            e.printStackTrace();        }        return null;    }

    @Override    protected void onPause() {        super.onPause();

        Log.i("TAG","onPause"+6);        mMapView.onPause();        deactivate();    }

    @Override    protected void onSaveInstanceState(Bundle outState) {        super.onSaveInstanceState(outState);        Log.i("TAG","onSaveInstanceState"+7);        mMapView.onSaveInstanceState(outState);    }    @Override    protected void onResume() {        super.onResume();        Log.i("TAG","onResume"+8);        mMapView.onResume();    }

    @Override    protected void onDestroy() {        super.onDestroy();        Log.i("TAG","onDestroy"+9);        mMapView.onDestroy();        mMapView.onDestroy();        if (null != mlocationClient) {            mlocationClient.onDestroy();        }    }

}//mainfest文件  还需要导入地图的3djar 和定位的Jar  key需要自己申请 应用的包名和项目的包名需一致

<?xml version="1.0" encoding="utf-8"?><manifest package="itcast.cn.mymap"          xmlns:android="http://schemas.android.com/apk/res/android">

    <uses-permission android:name="android.permission.INTERNET" />    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />    <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />    <uses-permission android:name="android.permission.READ_PHONE_STATE" />    <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />

    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />    <uses-permission android:name="android.permission.ACCESS_LOCATION_EXTRA_COMMANDS" />    <uses-permission android:name="android.permission.CHANGE_WIFI_STATE" />

    <application        android:allowBackup="true"        android:icon="@mipmap/ic_launcher"        android:label="@string/app_name"        android:supportsRtl="true"        android:theme="@style/AppTheme">

        <meta-data            android:name="com.amap.api.v2.apikey"            android:value="3e38e8decba8f7e2f3909e76ac82362e"            ></meta-data>

        <activity android:name=".MainActivity">            <intent-filter>                <action android:name="android.intent.action.MAIN"/>

                <category android:name="android.intent.category.LAUNCHER"/>            </intent-filter>        </activity>

        <service android:name="com.amap.api.location.APSService"></service>    </application>//xml配置文件

<?xml version="1.0" encoding="utf-8"?><RelativeLayout    xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:tools="http://schemas.android.com/tools"    android:layout_width="match_parent"    android:layout_height="match_parent"  >

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

</RelativeLayout>