获取 Android GpsLocationProvider 对象

发布于 2024-12-10 13:39:17 字数 1278 浏览 0 评论 0原文

我想访问 Android 上的 GpsLocationProvider 类。我想调用这个类的一些方法，比如setMinTime()。这是我的代码：

LocationManager lm = (LocationManager) getSystemService(LOCATION_SERVICE);
GpsLocationProvider pr = (GpsLocationProvider)lm.getProvider(LocationManager.GPS_PROVIDER);

问题是 GpsLocationProvider 类未解决。我知道它位于 com.android.internal.location.GpsLocationProvider 中，但此类导入也未解决，并且 import com.android.internal.*; 没有也无助于解决“GpsLocationProvider”问题。这意味着什么？感谢您的任何提示。

编辑：我知道我可以通过 LocationManager 更改大多数 LocationProvider 参数，例如 LocationManager.requestLocationUpdates(Stringprovider, long minTime, float minDistance, LocationListenerlistener)< /code> ，但我想做的是一点小技巧。我想要另一个程序比它更频繁地更新 GPS 坐标。这就是为什么我不能使用 LocationManager （需要侦听器参数），并且想要设置“全局”gps 参数，这将影响另一个活动。

EDIT2：我按照里诺的建议尝试了反射。

LocationProvider provider = lm.getProvider(LocationManager.GPS_PROVIDER);       
 try {
    Class classGpsProvider = Class.forName("com.android.internal.location.GpsLocationProvider");
        classGpsProvider.cast(provider);
    ...

但不幸的是，对 lm.getProvider() 的调用返回 DummyLocationProvider，而它的作用就像 GpsLocationProvider 的影子。

原文

I want to get to the class GpsLocationProvider on Android. I want to call a few methods of this class, like setMinTime().
Here is my code:

LocationManager lm = (LocationManager) getSystemService(LOCATION_SERVICE);
GpsLocationProvider pr = (GpsLocationProvider)lm.getProvider(LocationManager.GPS_PROVIDER);

And the problem is GpsLocationProvider class is unresolved. I know that it is located in com.android.internal.location.GpsLocationProvider , but such import is unresolved as well, and import com.android.internal.*; doesn't help to resolve ``GpsLocationProvider` too.
What does this mean?
Thank you for any tips.

EDIT: I know that I can change most of the LocationProvider pararmeters through LocationManager like LocationManager.requestLocationUpdates(String provider, long minTime, float minDistance, LocationListener listener) , but what I'm trying to do is a little hack. I want another programm to update gps coords more often than it does. That's why I cant use LocationManager (that requires listener parameter), and want to set "global" gps params, that will affect another activity.

EDIT2: I tried with reflections as suggested by Reno.

LocationProvider provider = lm.getProvider(LocationManager.GPS_PROVIDER);       
 try {
    Class classGpsProvider = Class.forName("com.android.internal.location.GpsLocationProvider");
        classGpsProvider.cast(provider);
    ...

But unfortunately the call to lm.getProvider() returns DummyLocationProvider, and that one acts like a shadow for GpsLocationProvider.

分享到QQ

分享到微博