android使用高德地图api

使用高德地图获取当前定位和显示定位地图。

1、添加应用key
主要填写sha1安全码和包名
SHA1码：可在eclipse下，Window->Preferences->Android->Build，SHA1 fingerprint。
Package：自定义，后面开发时创建的包名要对应，例如：com.amap.navi.demo

2、创建工程
创建时包名要定义为com.amap.navi.demo。

AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.amap.navi.demo"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk
        android:minSdkVersion="8"
        android:targetSdkVersion="21" />

    <!--用于进行网络定位-->
    <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"></uses-permission>
    <!--用于访问GPS定位-->
    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"></uses-permission>
    <!--获取运营商信息，用于支持提供运营商信息相关的接口-->
    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"></uses-permission>
    <!--用于访问wifi网络信息，wifi信息会用于进行网络定位-->
    <uses-permission android:name="android.permission.ACCESS_WIFI_STATE"></uses-permission>
    <!--这个权限用于获取wifi的获取权限，wifi信息会用来进行网络定位-->
    <uses-permission android:name="android.permission.CHANGE_WIFI_STATE"></uses-permission>
    <!--用于访问网络，网络定位需要上网-->
    <uses-permission android:name="android.permission.INTERNET"></uses-permission>
    <!--用于读取手机当前的状态-->
    <uses-permission android:name="android.permission.READ_PHONE_STATE"></uses-permission>
    <!--写入扩展存储，向扩展卡写入数据，用于写入缓存定位数据-->
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"></uses-permission>

    <application
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >
        <meta-data
            android:name="com.amap.api.v2.apikey"
            android:value="a73068790b8a332ad8538002102b5edf"/>
        <service android:name="com.amap.api.location.APSService" >
        </service>
        <activity
            android:name=".MainActivity"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

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

</manifest>

MainActivity.java

package com.amap.navi.demo;

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

import com.amap.api.location.AMapLocation;
import com.amap.api.location.AMapLocationClient;
import com.amap.api.location.AMapLocationClientOption;
import com.amap.api.location.AMapLocationClientOption.AMapLocationMode;
import com.amap.api.location.AMapLocationListener;
import com.amap.api.maps2d.AMap;
import com.amap.api.maps2d.AMap.OnMapLoadedListener;
import com.amap.api.maps2d.CameraUpdateFactory;
import com.amap.api.maps2d.MapView;
import com.amap.api.maps2d.model.BitmapDescriptorFactory;
import com.amap.api.maps2d.model.LatLng;
import com.amap.api.maps2d.model.MarkerOptions;

import android.support.v7.app.ActionBarActivity;
import android.annotation.SuppressLint;
import android.os.Bundle;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.TextView;
import android.widget.Toast;

public class MainActivity extends ActionBarActivity
{
    //声明AMapLocationClient类对象
    public AMapLocationClient mLocationClient = null;
    public AMapLocationClientOption mLocationOption = null;
    private TextView hellow = null;
    private Button startlocation = null;
    private Button stoplocation = null;
    private MapView mMapView = null;
    private AMap mMap = null;

    private LatLng locLatlng;

    @Override
    protected void onCreate(Bundle savedInstanceState)
    {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        hellow = (TextView)findViewById(R.id.hellow);
        //控制按钮，开始和停止获取当前定位
        startlocation = (Button)findViewById(R.id.startlocation);
        stoplocation = (Button)findViewById(R.id.stoplocation);
        mMapView = (MapView) findViewById(R.id.map);
        mMapView.onCreate(savedInstanceState);

        startlocation.setOnClickListener(locationlister);
        stoplocation.setOnClickListener(locationlister);

        mLocationClient = new AMapLocationClient(getApplicationContext());
        mLocationClient.setLocationListener(mLocationListener);
        mLocationOption = new AMapLocationClientOption();
        mLocationOption.setLocationMode(AMapLocationMode.Hight_Accuracy);
        mLocationOption.setOnceLocationLatest(true);
        mLocationOption.setNeedAddress(true);

        mLocationClient.setLocationOption(mLocationOption);

        if (mMap == null) {
            mMap = mMapView.getMap();
        }
        mMap.setOnMapLoadedListener(onmaploadedlistener);
    }

    public OnClickListener locationlister = new OnClickListener()
    {

        @SuppressLint("ShowToast")
        @Override
        public void onClick(View v)
        {
            switch (v.getId())
            {
            case R.id.startlocation:
                mLocationClient.startLocation();
                break;

            case R.id.stoplocation:
                mLocationClient.stopLocation();
                mLocationClient.onDestroy();
                break;

            default:
                break;
            }
        }
    };

    public AMapLocationListener mLocationListener = new AMapLocationListener()
    {

        @Override
        public void onLocationChanged(AMapLocation amapLocation)
        {String text = null;
            // TODO Auto-generated method stub
            if (amapLocation != null) {
                if (amapLocation.getErrorCode() == 0) {
                    //可在其中解析amapLocation获取相应内容。
                    selflatitude = amapLocation.getLatitude();
                    selflongitude = amapLocation.getLongitude();
                    Toast.makeText(getApplicationContext(), "lat:"+selflatitude+"long:"+selflongitude, 500).show();
                    text = "定位结果来源:"+amapLocation.getLocationType()+"\n"+
                            "纬度:"+amapLocation.getLatitude()+"\n"+
                            "经度:"+amapLocation.getLongitude()+"\n"+
                            "地址:"+amapLocation.getAddress();
                    locLatlng = new LatLng(amapLocation.getLatitude(),
                                           amapLocation.getLongitude());
                    if (mMap != null) {
                        addLocationMarker();
                        Log.e("MAP", "aaa");
                    }
                }else {
                //定位失败时，可通过ErrCode（错误码）信息来确定失败的原因，errInfo是错误信息，详见错误码表。
                Log.e("AmapError","location Error, ErrCode:"
                    + amapLocation.getErrorCode() + ", errInfo:"
                    + amapLocation.getErrorInfo());
                text = "location Error, ErrCode:"+ amapLocation.getErrorCode() + ", errInfo:"+ amapLocation.getErrorInfo();
                hellow.setText(text);
                }
            }
        }
    };
    public OnMapLoadedListener onmaploadedlistener = new OnMapLoadedListener()
    {

        @Override
        public void onMapLoaded()
        {
            // TODO Auto-generated method stub
            addLocationMarker();
        }
    };

    /**
     * 添加定位小图标到地图上
     */
    private void addLocationMarker() {
            if (locLatlng != null) {
                mMap.clear();
                mMap.addMarker(new MarkerOptions().position(locLatlng).icon(
BitmapDescriptorFactory.fromResource(R.drawable.markpoint)));
                mMap.moveCamera(CameraUpdateFactory.newLatLngZoom(locLatlng, 10));
            }
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu)
    {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.main, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item)
    {
        // Handle action bar item clicks here. The action bar will
        // automatically handle clicks on the Home/Up button, so long
        // as you specify a parent activity in AndroidManifest.xml.
        int id = item.getItemId();
        if (id == R.id.action_settings)
        {
            return true;
        }
        return super.onOptionsItemSelected(item);
    }

    @Override
    protected void onDestroy()
    {
        // TODO Auto-generated method stub
        super.onDestroy();
        mMapView.onDestroy();
    }

    @Override
    protected void onPause()
    {
        // TODO Auto-generated method stub
        super.onPause();
        mMapView.onPause();
    }

    @Override
    protected void onResume()
    {
        // TODO Auto-generated method stub
        super.onResume();
        mMapView.onResume();
    }

    @Override
    protected void onSaveInstanceState(Bundle outState)
    {
        // TODO Auto-generated method stub
        super.onSaveInstanceState(outState);
        mMapView.onSaveInstanceState(outState);
    }


}