体温7

今天把定位功能重新写了一下，用经纬度表示，没有调用百度地图

首先是需要有相应的权限

AndroidManifest.xml文件：

1 <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
2 <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
3 <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
4 <uses-permission android:name="android.permission.INTERNET" />

MainActivity.java

  1 //地点
  2 private EditText mLocal;
  3 public static final int LOCATION_CODE=301;
  4 private LocationManager locationManager;
  5 private String locationProvider=null;
  6 
  7 protected void onCreate(Bundle savedInstanceState) {
  8         super.onCreate(savedInstanceState);
  9         setContentView(R.layout.activity_main);
 10 
 11         //地点
 12         mLocal=findViewById(R.id.local);
 13         mLocal.setOnTouchListener(new View.OnTouchListener() {
 14             @Override
 15             public boolean onTouch(View v, MotionEvent event) {
 16                 if (event.getAction() == MotionEvent.ACTION_DOWN) {
 17                     getLocation();
 18                     return true;
 19                 }
 20                 return false;
 21             }
 22         });
 23 }
 24 
 25 private void getLocation(){
 26         locationManager=(LocationManager) getSystemService(Context.LOCATION_SERVICE);
 27         //获取所有可用的位置提供器
 28         List<String> providers=locationManager.getProviders(true);
 29         if(providers.contains(LocationManager.NETWORK_PROVIDER)){
 30             //如果是Network
 31             locationProvider=locationManager.NETWORK_PROVIDER;
 32         }
 33         if(Build.VERSION.SDK_INT>=Build.VERSION_CODES.M){
 34             //获取权限（如果没有开启权限，会弹出对话框，询问是否开启权限）
 35             if(ContextCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION)!= PackageManager.PERMISSION_GRANTED|| ActivityCompat.checkSelfPermission(this,Manifest.permission.ACCESS_COARSE_LOCATION)!=PackageManager.PERMISSION_GRANTED){
 36                 //请求权限
 37                 ActivityCompat.requestPermissions(this,new String[]{
 38                         Manifest.permission.ACCESS_FINE_LOCATION,Manifest.permission.ACCESS_COARSE_LOCATION
 39                 },LOCATION_CODE);
 40             }else{
 41                 //监测地理位置变化
 42                 locationManager.requestLocationUpdates(locationProvider,3000,1,locationListener);
 43                 Location location=locationManager.getLastKnownLocation(locationProvider);
 44                 if(location!=null){
 45                     //输入经纬度
 46                     mLocal.setText("经度："+location.getLongitude() + "，纬度：" + location.getLatitude() + "");
 47                 }
 48             }
 49         }else{
 50             //监视地理位置变化
 51             locationManager.requestLocationUpdates(locationProvider,3000,1,locationListener);
 52             Location location=locationManager.getLastKnownLocation(locationProvider);
 53             if(location!=null){
 54                 //不为空，显示地理位置经纬度
 55                 mLocal.setText("经度："+location.getLongitude() + "，纬度：" + location.getLatitude() + "");
 56             }
 57         }
 58     }
 59 public LocationListener locationListener = new LocationListener() {
 60         // Provider的状态在可用、暂时不可用和无服务三个状态直接切换时触发此函数
 61         @Override
 62         public void onStatusChanged(String provider, int status, Bundle extras) {
 63         }
 64         // Provider被enable时触发此函数，比如GPS被打开
 65         @Override
 66         public void onProviderEnabled(String provider) {
 67         }
 68         // Provider被disable时触发此函数，比如GPS被关闭
 69         @Override
 70         public void onProviderDisabled(String provider) {
 71         }
 72         //当坐标改变时触发此函数，如果Provider传进相同的坐标，它就不会被触发
 73         @Override
 74         public void onLocationChanged(Location location) {
 75             if (location != null) {
 76             //不为空,显示地理位置经纬度
 77                 mLocal.setText("经度："+location.getLongitude() + "，纬度：" + location.getLatitude() + "");
 78                 getAddress(location.getLongitude(),location.getLatitude());
 79             }
 80         }
 81     };
 82 
 83 @Override
 84 public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults){
 85         switch (requestCode) {
 86             case LOCATION_CODE:
 87                 if(grantResults.length > 0 && grantResults[0] == getPackageManager().PERMISSION_GRANTED
 88                         && grantResults[1] == PackageManager.PERMISSION_GRANTED) {
 89                     Toast.makeText(this, "申请权限", Toast.LENGTH_LONG).show();
 90                     try {
 91                         List<String> providers = locationManager.getProviders(true);
 92                         if (providers.contains(LocationManager.NETWORK_PROVIDER)) {
 93                         //如果是Network
 94                             locationProvider = LocationManager.NETWORK_PROVIDER;
 95                         }else if (providers.contains(LocationManager.GPS_PROVIDER)) {
 96                         //如果是GPS
 97                             locationProvider = LocationManager.GPS_PROVIDER;
 98                         }
 99                         //监视地理位置变化
100                         locationManager.requestLocationUpdates(locationProvider, 3000, 1, locationListener);
101                         Location location = locationManager.getLastKnownLocation(locationProvider);
102                         if (location != null) {
103                             //不为空,显示地理位置经纬度
104                             mLocal.setText("经度：" + location.getLongitude() + "，纬度：" + location.getLatitude() + "");
105                         }
106                     }catch (SecurityException e){
107                         e.printStackTrace();
108                     }
109                 } else {
110                     Toast.makeText(this, "缺少权限", Toast.LENGTH_LONG).show();
111                     finish();
112                 }
113                 break;
114         }
115 }
116 
117 @Override
118 protected void onDestroy() {
119         super.onDestroy();
120         locationManager.removeUpdates(locationListener);
121 }

activity_main.xml

 1 <EditText
 2         android:id="@+id/local"
 3         android:hint="地点"
 4         android:textColor="#000000"
 5         android:textSize="16sp"
 6         android:layout_width="match_parent"
 7         android:layout_height="50dp"
 8         android:padding="5dp"
 9         android:layout_below="@id/time"
10         android:layout_marginTop="20dp"
11         android:background="#FDDEDE"
12         android:clickable="true"
13         />

效果图如下：

明天开始建立数据库