检查GPS是在奇巧（4.4）

问题描述

下面奇巧，我得到，如果GPS是与供应商名单

 字符串商= Secure.getString（context.getContentResolver（），Secure.LOCATION_PROVIDERS_ALLOWED）;
如果（TextUtils.isEmpty（供应商））{
    返回false;
}
返回providers.contains（LocationManager.GPS_PROVIDER）;
 

但在奇巧，Secure.LOCATION_PROVIDERS_ALLOWED是德precated。

Javaodc说：使用Secure.LOCATION_MODE，定位模式是初级讲座......

  Secure.LOCATION_MODE_OFF
Secure.LOCATION_MODE_SENSORS_ONLY
Secure.LOCATION_MODE_BATTERY_SAVING
Secure.LOCATION_MODE_HIGH_ACCURACY
 

但我不知道到底是低于code是正确的。 （我没有奇巧的设备）

  INT locationMode = Secure.getInt（co​​ntext.getContentResolver（），Secure.LOCATION_MODE）;
布尔isGpsOn = locationMode = Secure.LOCATION_MODE_OFF！;
 

如果不正确，正确的答案code吧。

修改

我知道LocationManager。但它需要ACCESS_FINE_LOCATION许可。我并不需要访问的位置。

  LocationManager经理=（LocationManager）getSystemService（Context.LOCATION_SERVICE）;
布尔isGpsOn = manager.isProviderEnabled（LocationManager.GPS_PROVIDER）
 

解决方案

自答

  @TargetApi（Build.VERSION_ codeS.KITKAT）
@燮pressWarnings（德precation）
公共静态布尔isGpsEnabled（上下文的背景下）{

    如果（PackageUtil.checkPermission（上下文，Manifest.permission.ACCESS_FINE_LOCATION））{
        LocationManager LM =（LocationManager）context.getSystemService（Context.LOCATION_SERVICE）;
        返回lm.isProviderEnabled（LocationManager.GPS_PROVIDER）;
    }

    如果（Build.VERSION.SDK_INT＆LT; Build.VERSION_ codeS.KITKAT）{
        串提供商= Secure.getString（context.getContentResolver（），
                Secure.LOCATION_PROVIDERS_ALLOWED）;
        如果（TextUtils.isEmpty（供应商））{
            返回false;
        }
        返回providers.contains（LocationManager.GPS_PROVIDER）;
    } 其他 {
        最终诠释locationMode;
        尝试 {
            locationMode = Secure.getInt（co​​ntext.getContentResolver（），
                    Secure.LOCATION_MODE）;
        }赶上（SettingNotFoundException E）{
            e.printStackTrace（）;
            返回false;
        }
        开关（locationMode）{

        案例Secure.LOCATION_MODE_HIGH_ACCURACY：
        案例Secure.LOCATION_MODE_SENSORS_ONLY：
            返回true;
        案例Secure.LOCATION_MODE_BATTERY_SAVING：
        案例Secure.LOCATION_MODE_OFF：
        默认：
            返回false;
        }
    }
}
 

和添加这种方法在你的packageutils类：

 公共静态类PackageUtil {

    静态布尔的checkPermission（上下文的背景下，字符串accessFineLocation）{

        INT RES = context.checkCallingOrSelfPermission（accessFineLocation）;
        返程（RES == PackageManager.PERMISSION_GRANTED）;

    }

}
 

Below kitkat, I get if gps is on with providers list

String providers = Secure.getString(context.getContentResolver(), Secure.LOCATION_PROVIDERS_ALLOWED);
if (TextUtils.isEmpty(providers)) {
    return false;
}
return providers.contains(LocationManager.GPS_PROVIDER);

But in kitkat, Secure.LOCATION_PROVIDERS_ALLOWED is deprecated.

Javaodc say "use Secure.LOCATION_MODE", Location modes are belows...

Secure.LOCATION_MODE_OFF
Secure.LOCATION_MODE_SENSORS_ONLY
Secure.LOCATION_MODE_BATTERY_SAVING
Secure.LOCATION_MODE_HIGH_ACCURACY

But i do not know exactly below code is correct. (I do not have kitkat devices)

int locationMode = Secure.getInt(context.getContentResolver(), Secure.LOCATION_MODE);
boolean isGpsOn = locationMode != Secure.LOCATION_MODE_OFF;

If incorrect, Answer correct code please.

EDIT

I know LocationManager. But It require ACCESS_FINE_LOCATION permission. I do not need to "Access" location.

LocationManager manager = (LocationManager) getSystemService( Context.LOCATION_SERVICE );
boolean isGpsOn = manager.isProviderEnabled( LocationManager.GPS_PROVIDER ) 

解决方案

Self Answer

@TargetApi(Build.VERSION_CODES.KITKAT)
@SuppressWarnings("deprecation")
public static boolean isGpsEnabled(Context context) {

    if (PackageUtil.checkPermission(context, Manifest.permission.ACCESS_FINE_LOCATION)) {
        LocationManager lm = (LocationManager) context.getSystemService(Context.LOCATION_SERVICE);
        return lm.isProviderEnabled(LocationManager.GPS_PROVIDER);
    }

    if (Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT) {
        String providers = Secure.getString(context.getContentResolver(),
                Secure.LOCATION_PROVIDERS_ALLOWED);
        if (TextUtils.isEmpty(providers)) {
            return false;
        }
        return providers.contains(LocationManager.GPS_PROVIDER);
    } else {
        final int locationMode;
        try {
            locationMode = Secure.getInt(context.getContentResolver(),
                    Secure.LOCATION_MODE);
        } catch (SettingNotFoundException e) {
            e.printStackTrace();
            return false;
        }
        switch (locationMode) {

        case Secure.LOCATION_MODE_HIGH_ACCURACY:
        case Secure.LOCATION_MODE_SENSORS_ONLY:
            return true;
        case Secure.LOCATION_MODE_BATTERY_SAVING:
        case Secure.LOCATION_MODE_OFF:
        default:
            return false;
        }
    }
}

And Add this method in your packageutils class :

public static class PackageUtil {

    static boolean checkPermission(Context context, String accessFineLocation) {

        int res = context.checkCallingOrSelfPermission(accessFineLocation);
        return (res == PackageManager.PERMISSION_GRANTED);

    }

}

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