android怎么判断定位是否开启

判断 Android 设备是否开启定位服务,有以下几种常用的方式:

1. 检查位置权限状态:

```java

int locationPermissionStatus = ContextCompat.checkSelfPermission(context, Manifest.permission.ACCESS_FINE_LOCATION);

if (locationPermissionStatus == PackageManager.PERMISSION_GRANTED) {

// 定位权限已获取

} else {

// 定位权限未获取

}

```

2. 检查位置服务是否开启:

```java

LocationManager locationManager = (LocationManager) context.getSystemService(Context.LOCATION_SERVICE);

boolean isGpsEnabled = locationManager.isProviderEnabled(LocationManager.GPS_PROVIDER);

boolean isNetworkEnabled = locationManager.isProviderEnabled(LocationManager.NETWORK_PROVIDER);

if (isGpsEnabled || isNetworkEnabled) {

// 位置服务已开启

} else {

// 位置服务未开启

}

```

3. 使用 Google Play Services 提供的 API 检查:

```java

GoogleApiClient googleApiClient = new GoogleApiClient.Builder(context)

.addConnectionCallbacks(this)

.addOnConnectionFailedListener(this)

.addApi(LocationServices.API)

.build();

googleApiClient.connect();

int locationSettingsStatus = LocationSettingsStatusCodes.SUCCESS;

try {

LocationSettingsRequest.Builder builder = new LocationSettingsRequest.Builder()

.addLocationRequest(LocationRequest.create());

LocationSettingsRequest locationSettingsRequest = builder.build();

locationSettingsStatus = LocationServices.SettingsApi.checkLocationSettings(googleApiClient, locationSettingsRequest)

.getStatus()

.getStatusCode();

} catch (Exception e) {

e.printStackTrace();

}

if (locationSettingsStatus == LocationSettingsStatusCodes.SUCCESS) {

// 位置服务已开启

} else {

// 位置服务未开启

}

```

这几种方式各有优缺点,可根据实际情况选择合适的方式。