百度地圖一（實現獲取經緯度和具體位置）

首先下載百度地圖開發包，把libs中的包拷到項目中libs中

在app下的build.gradle中添加sourceSets {
    main {
        jniLibs.srcDirs = ['libs']
    }
}

AndroidManifest.xml

application里添加

<meta-data android:name="com.baidu.lbsapi.API_KEY"
 android:value="秘鑰"/>

秘鑰的獲取

在安裝了Android開發環境后，主目錄下會自動創建一個隱藏的.android目錄，其下有一個debug.keystore文件即為調試秘鑰。

為了獲取證書指紋，可以運行如下命令：
 
 
 
         

  
  
  
          
keytool -list -v -keystore ~/.android/debug.keystore -alias androiddebugkey -storepass android -keypass android
  
  
  
          
 
           這樣我們就能得到MD5，SHA1和SHA256三種指紋。（本方法獲取秘鑰沒有使用過，如若獲取不到參考開發指南） 
          
 
 
 
         

<service
 android:name="com.baidu.location.f"
 android:enabled="true"
 android:process=":remote" >
</service>
在application外添加權限
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
<uses-permission android:name="android.permission.CHANGE_WIFI_STATE" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.READ_PHONE_STATE" />
<uses-permission android:name="android.permission.CALL_PHONE" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
mainActivity.java
package com.example.lgkj.bugmapapp;

import android.Manifest;
import android.content.Context;
import android.content.pm.PackageManager;
import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.v4.app.ActivityCompat;
import android.support.v4.content.ContextCompat;
import android.support.v7.app.AppCompatActivity;
import android.view.Window;
import android.widget.TextView;
import android.widget.Toast;

import com.baidu.location.BDAbstractLocationListener;
import com.baidu.location.BDLocation;
import com.baidu.location.BDLocationListener;
import com.baidu.location.LocationClient;
import com.baidu.location.LocationClientOption;
import com.baidu.mapapi.SDKInitializer;
import com.baidu.mapapi.map.BaiduMap;
import com.baidu.mapapi.map.MapView;

import java.util.ArrayList;
import java.util.List;

public class MainActivity extends AppCompatActivity{

    private MapView mMapView = null;

    BaiduMap mBaiduMap;

    public LocationClient mLocationclient;

    private TextView postionTextView;


    @Override
 protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        //獲取地圖初始化
//        requestWindowFeature(Window.FEATURE_NO_TITLE);
//        SDKInitializer.initialize(getApplicationContext());
//
//        setContentView(R.layout.activity_main);
//        mMapView = (MapView) findViewById(R.id.map_view);

//        開啟位置
 mLocationclient = new LocationClient(getApplicationContext());
//        監聽位置的變化
 mLocationclient.registerLocationListener(new MyLocationListener());
        setContentView(R.layout.activity_main);
        postionTextView = (TextView)findViewById(R.id.position_text_view);
        List<String> permissionList = new ArrayList<>();
//        開啟權限
 if (ContextCompat.checkSelfPermission(MainActivity.this, Manifest.permission.ACCESS_FINE_LOCATION)
                != PackageManager.PERMISSION_GRANTED){
            permissionList.add(Manifest.permission.ACCESS_FINE_LOCATION);
        }
        if (ContextCompat.checkSelfPermission(MainActivity.this,Manifest.permission.READ_PHONE_STATE)
                !=PackageManager.PERMISSION_GRANTED){
            permissionList.add(Manifest.permission.READ_PHONE_STATE);
        }
      if (!permissionList.isEmpty()){
            String[] permissions = permissionList.toArray(new String[permissionList.size()]);
          ActivityCompat.requestPermissions(MainActivity.this,permissions,1);
      }else{
            requestLocation();
      }
    }

//    設置更新時間間隔
 private void initLocation(){
        LocationClientOption option = new LocationClientOption();
//        option.setLocationMode(LocationClientOption.LocationMode.Device_Sensors);
 option.setScanSpan(2000);
        option.setIsNeedAddress(true);
        mLocationclient.setLocOption(option);
    }
//    開啟定位並且初始化
 private void requestLocation(){
        initLocation();
        mLocationclient.start();
    }

//    請求權限之后返回數值
 @Override
 public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {

        switch (requestCode){
            case 1:
                if (grantResults.length>0){
                    for (int result : grantResults){
                        if (result != PackageManager.PERMISSION_GRANTED){
                            Toast.makeText(this,"必須同意所有權限才能使用本程序",
                            Toast.LENGTH_SHORT).show();
                            finish();
                            return;
                        }
                    }
                    requestLocation();
                }else {
                    Toast.makeText(this,"發生未知錯誤",Toast.LENGTH_SHORT).show();
                    finish();
                }
                break;
             default:
        }
    }

//    監聽器響應值
 public class  MyLocationListener extends BDAbstractLocationListener {

        @Override
 public void onReceiveLocation(BDLocation bdLocation) {
            StringBuffer currentPostion = new StringBuffer();
            currentPostion.append("緯度：").append(bdLocation.getLatitude())
            .append("\n");
            currentPostion.append("經線：").append(bdLocation.getLongitude())
                    .append("\n");
            currentPostion.append("國家：").append(bdLocation.getCountry())
                    .append("\n");
            currentPostion.append("省：").append(bdLocation.getProvince())
                    .append("\n");
            currentPostion.append("市：").append(bdLocation.getCity())
                    .append("\n");
            currentPostion.append("區：").append(bdLocation.getDistrict())
                    .append("\n");
            currentPostion.append("街道：").append(bdLocation.getStreet())
                    .append("\n");
            currentPostion.append("定位方式：");
            if (bdLocation.getLocType()==BDLocation.TypeGpsLocation){
                currentPostion.append("GPS");
            }else if (bdLocation.getLocType()==BDLocation.TypeNetWorkLocation){
                currentPostion.append("網絡");
            }
            postionTextView.setText(currentPostion);
        }
    }
    @Override
 protected void onResume() {
        super.onResume();
//        mMapView.onResume();
 }

    @Override
 protected void onPause() {
        super.onPause();
//        mMapView.onPause();
 }

//    程序關閉之后的銷毀工作
 @Override
 protected void onDestroy() {
        super.onDestroy();
        mLocationclient.stop();
//        mMapView.onDestroy();
//        MapView.setMapCustomEnable(false);
//        mMapView = null;
 }
}