Android 12版本如何获取gps原始观测量
时间: 2023-09-10 20:05:04 浏览: 50
Android 12版本提供了通过GNSS原始观测量API获取GPS原始观测量的功能。你可以使用以下步骤来获取GPS原始观测量:
1. 确保你的设备支持GNSS原始观测量API。你可以在设备的设置中查找“GNSS原始观测量”选项,如果找到了该选项,说明你的设备支持该API。
2. 在你的应用程序中添加以下权限:
```
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>
<uses-permission android:name="android.permission.ACCESS_BACKGROUND_LOCATION" />
```
3. 在你的应用程序中添加以下依赖项:
```
implementation 'com.android.support:support-v4:28.0.0'
implementation 'com.android.support:appcompat-v7:28.0.0'
implementation 'com.google.android.gms:play-services-location:17.0.0'
```
4. 创建一个LocationCallback对象来处理位置更新:
```
LocationCallback locationCallback = new LocationCallback() {
@Override
public void onLocationResult(LocationResult locationResult) {
// 处理位置更新
}
};
```
5. 创建LocationRequest对象以请求位置更新和GNSS原始观测量:
```
LocationRequest locationRequest = new LocationRequest();
locationRequest.setInterval(1000);
locationRequest.setFastestInterval(500);
locationRequest.setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY);
locationRequest.setNumUpdates(1);
locationRequest.setWaitForAccurateLocation(true);
locationRequest.setMinAccuracyMeters(10);
locationRequest.setMinTime(5000);
locationRequest.setMaxTime(10000);
locationRequest.setBearingRequired(false);
locationRequest.setSpeedRequired(false);
locationRequest.setVerticalAccuracyMeters(10);
locationRequest.setHorizontalAccuracyMeters(10);
locationRequest.setPowerRequirement(LocationRequest.POWER_HIGH);
locationRequest.setLocationPurpose(LocationRequest.PURPOSE_NAVIGATION);
locationRequest.setNeedGnssMeasurement(true);
```
6. 请求位置更新:
```
LocationServices.getFusedLocationProviderClient(context)
.requestLocationUpdates(locationRequest, locationCallback, Looper.getMainLooper());
```
7. 在onLocationResult回调方法中获取GNSS原始观测量:
```
@Override
public void onLocationResult(LocationResult locationResult) {
if (locationResult == null) {
return;
}
Location location = locationResult.getLastLocation();
if (location != null) {
GnssMeasurement measurement = location.getExtras().getParcelable(Location.EXTRA_GNSS_MEASUREMENTS);
if (measurement != null) {
// 处理GNSS原始观测量
}
}
}
```
请注意,获取GNSS原始观测量需要设备具有GNSS芯片,因此不是所有设备都支持此功能。另外,由于该功能涉及到敏感数据,因此需要向用户请求权限。