android 后台持续定位源码
时间: 2023-07-29 16:14:40 浏览: 72
以下是一个简单的后台持续定位的 Android 源码示例:
首先,在 AndroidManifest.xml 文件中添加以下权限:
```xml
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>
```
接下来,创建一个 Service 类来处理位置更新:
```java
public class LocationService extends Service {
private LocationManager locationManager;
@Override
public void onCreate() {
super.onCreate();
locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
}
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
startLocationUpdates();
return START_STICKY;
}
private void startLocationUpdates() {
LocationRequest locationRequest = new LocationRequest()
.setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY)
.setInterval(10000) // 10 seconds
.setFastestInterval(5000); // 5 seconds
LocationCallback locationCallback = new LocationCallback() {
@Override
public void onLocationResult(LocationResult locationResult) {
if (locationResult != null) {
Location location = locationResult.getLastLocation();
// Do something with the new location
Log.d("LocationService", "New location: " + location.getLatitude() + ", " + location.getLongitude());
}
}
};
try {
locationManager.requestLocationUpdates(locationRequest, locationCallback, Looper.myLooper());
} catch (SecurityException e) {
// Handle exception
}
}
@Override
public void onDestroy() {
super.onDestroy();
locationManager.removeUpdates(locationCallback);
}
}
```
此服务将使用 FusedLocationProviderClient 请求位置更新,并在每次更新时将新位置记录到日志中。
最后,在您的应用程序中调用以下代码以启动服务:
```java
Intent intent = new Intent(context, LocationService.class);
context.startService(intent);
```
请注意,此代码仅提供了一个简单的示例,并且您可能需要根据您的需求进行更改。另外,请确保在使用位置服务时遵循 Android 的最佳实践。