在Android手机中检测GPS开/关开关

Question

我想检测用户何时更改Android手机的GPS设置.当用户打开/关闭GPS卫星或通过接入点等进行检测时的​​含义

Answer 1

正如我已经发现的那样,最好的方法是附加到

<action android:name="android.location.PROVIDERS_CHANGED" />

意图.

例如:

<receiver android:name=".gps.GpsLocationReceiver">
        <intent-filter>
            <action android:name="android.location.PROVIDERS_CHANGED" />
            <category android:name="android.intent.category.DEFAULT" />
        </intent-filter>
    </receiver>

然后在代码中:

public class GpsLocationReceiver extends BroadcastReceiver implements LocationListener 
...

@Override
public void onReceive(Context context, Intent intent)
{
        if (intent.getAction().matches("android.location.PROVIDERS_CHANGED"))
        { 
            // react on GPS provider change action 
        }
}

Answer 2

以下是BroadcastReceiver检测 GPS 位置 ON/OFF 事件的代码示例：

private BroadcastReceiver locationSwitchStateReceiver = new BroadcastReceiver() {

        @Override
        public void onReceive(Context context, Intent intent) {

            if (LocationManager.PROVIDERS_CHANGED_ACTION.equals(intent.getAction())) {

                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) {
                    //location is enabled
                } else {
                    //location is disabled
                }
            }
        }
    };

您可以BroadcastReceiver动态注册您的清单文件，而不是更改您的清单文件：

IntentFilter filter = new IntentFilter(LocationManager.PROVIDERS_CHANGED_ACTION);
filter.addAction(Intent.ACTION_PROVIDER_CHANGED);
mActivity.registerReceiver(locationSwitchStateReceiver, filter);

不要忘记在您的onPause()方法中取消注册接收器：

mActivity.unregisterReceiver(locationSwitchStateReceiver);