实现功能：

定位自己的位置

Activity_main.xml

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AndroidManifest.xml

 

 MainActivity.java

1 package acticitytest.exapmle.com.lbstest;  2   3 import android.Manifest;  4 import android.content.pm.PackageManager;  5 import android.support.annotation.NonNull;  6 import android.support.v4.app.ActivityCompat;  7 import android.support.v4.content.ContextCompat;  8 import android.support.v7.app.AppCompatActivity;  9 import android.os.Bundle; 10 import android.widget.TextView; 11 import android.widget.Toast; 12  13 import com.baidu.location.BDLocation; 14 import com.baidu.location.BDLocationListener; 15 import com.baidu.location.LocationClient; 16 import com.baidu.location.LocationClientOption; 17  18 import java.util.ArrayList; 19 import java.util.List; 20  21 public class MainActivity extends AppCompatActivity { 22     public LocationClient mLocationClient; 23     private TextView postionText; 24  25     @Override 26     protected void onCreate(Bundle savedInstanceState) { 27         super.onCreate(savedInstanceState); 28         setContentView(R.layout.activity_main); 29         mLocationClient=new LocationClient(getApplicationContext()); 30         mLocationClient.registerLocationListener(new MyLocationListener()); 31         setContentView(R.layout.activity_main); 32         postionText=(TextView)findViewById(R.id.tv_positionTextView); 33         List
     
       permissionList=new ArrayList<>(); 34         if(ContextCompat.checkSelfPermission(MainActivity.this, 35                 Manifest.permission.ACCESS_FINE_LOCATION)!= PackageManager.PERMISSION_GRANTED){ 36             permissionList.add(Manifest.permission.ACCESS_FINE_LOCATION); 37         } 38         if(ContextCompat.checkSelfPermission(MainActivity.this, 39                 Manifest.permission.READ_PHONE_STATE)!=PackageManager.PERMISSION_GRANTED){ 40             permissionList.add(Manifest.permission.READ_PHONE_STATE); 41         } 42         if(ContextCompat.checkSelfPermission(MainActivity.this, 43                 Manifest.permission.WRITE_EXTERNAL_STORAGE)!=PackageManager.PERMISSION_GRANTED){ 44             permissionList.add(Manifest.permission.WRITE_EXTERNAL_STORAGE); 45         } 46         if(!permissionList.isEmpty()){ 47             String [] permissions=permissionList.toArray(new String[permissionList.size()]); 48             ActivityCompat.requestPermissions(MainActivity.this,permissions,1); 49         }else{ 50             requestLocation(); 51         } 52     } 53  54     public void requestLocation(){ 55         initLocation(); 56         mLocationClient.start();//开始定位 57     } 58     /**用于更新位置信息*/ 59     private void initLocation(){ 60         LocationClientOption option=new LocationClientOption(); 61         option.setScanSpan(5000);//每五秒更新当前位置 62         option.setIsNeedAddress(true); 63         mLocationClient.setLocOption(option); 64     } 65  66     @Override 67     public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) { 68         switch (requestCode){ 69             case 1: 70                 if(grantResults.length>0){ 71                     for (int result :grantResults){ 72                         if (result!=PackageManager.PERMISSION_GRANTED){ 73                             Toast.makeText(this,"必须同意所有权限才能使用本程序",Toast.LENGTH_SHORT).show(); 74                             finish(); 75                             return; 76                         } 77                     } 78                     requestLocation(); 79                 }else{ 80                     Toast.makeText(this,"未知错误",Toast.LENGTH_SHORT).show(); 81                     finish(); 82                 } 83                 break; 84             default: 85                 break; 86         } 87     } 88  89     public class MyLocationListener implements BDLocationListener{ 90         @Override 91         public void onReceiveLocation(BDLocation bdLocation) { 92             StringBuilder currentPostion =new StringBuilder(); 93             currentPostion.append("纬度：").append(bdLocation.getLatitude()).append("\n"); 94             currentPostion.append("经度：").append(bdLocation.getLongitude()).append("\n"); 95             currentPostion.append("国家：").append(bdLocation.getCountry()).append("\n"); 96             currentPostion.append("省份：").append(bdLocation.getProvince()).append("\n"); 97             currentPostion.append("区：").append(bdLocation.getCity()).append("\n"); 98             currentPostion.append("定位方式："); 99             if (bdLocation.getLocType()==BDLocation.TypeGpsLocation){100                 currentPostion.append("GPS");101             }else if(bdLocation.getLocType()==BDLocation.TypeNetWorkLocation){102                 currentPostion.append("网络");103             }else{104                 currentPostion.append("未识别");105             }106             postionText.setText(currentPostion);107         }108     }109 110     @Override111     protected void onDestroy() {112         super.onDestroy();113         mLocationClient.stop();//不断更新时一定要注意，在活动销毁时关闭，否则会一直耗电114     }115 }
     

 依赖：bulid.gradle

apply plugin: 'com.android.application'android {    compileSdkVersion 26    defaultConfig {        applicationId "acticitytest.exapmle.com.lbstest"        minSdkVersion 15        targetSdkVersion 26        versionCode 1        versionName "1.0"        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"    }    buildTypes {        release {            minifyEnabled false            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'        }    }    sourceSets{        main(){            jniLibs.srcDirs=['libs']        }    }}dependencies {    implementation fileTree(dir: 'libs', include: ['*.jar'])    implementation 'com.android.support:appcompat-v7:26.1.0'    implementation 'com.android.support.constraint:constraint-layout:1.1.0'    testImplementation 'junit:junit:4.12'    androidTestImplementation 'com.android.support.test:runner:1.0.2'    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'    compile files('libs/BaiduLBS_Android.jar')}