如何?监听位置设置是否开启(Android 应用)

OK So here's what I've got so far...
Heres my Receiver:

MyReceiver.Java

public class MyReceiver extends BroadcastReceiver {

    private final static String TAG = "LocationProviderChanged";

    boolean isGpsEnabled;
    boolean isNetworkEnabled;



    public MyReceiver() {
    // EMPTY

    // MyReceiver Close Bracket
    }



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


        // PRIMARY RECEIVER
        if (intent.getAction().matches("android.location.PROVIDERS_CHANGED")) {

            Log.i(TAG, "Location Providers Changed");

            LocationManager locationManager = (LocationManager) context.getSystemService(Context.LOCATION_SERVICE);
            isGpsEnabled = locationManager.isProviderEnabled(LocationManager.GPS_PROVIDER);
            isNetworkEnabled = locationManager.isProviderEnabled(LocationManager.NETWORK_PROVIDER);

            Toast.makeText(context, "GPS Enabled: " + isGpsEnabled + " Network Location Enabled: " + isNetworkEnabled, Toast.LENGTH_LONG).show();

            // START DIALOG ACTIVITY
            if (isGpsEnabled || isNetworkEnabled) {
                Intent runDialogActivity = new Intent(context, DialogActivity.class);
                context.startActivity(runDialogActivity);

            }

        }



        // BOOT COMPLETED (REPLICA OF PRIMARY RECEIVER CODE FOR WHEN BOOT_COMPLETED)
        if (intent.getAction().matches("android.intent.action.BOOT_COMPLETED")) {

            Log.i(TAG, "Location Providers Changed Boot");

            LocationManager locationManager = (LocationManager) context.getSystemService(Context.LOCATION_SERVICE);
            isGpsEnabled = locationManager.isProviderEnabled(LocationManager.GPS_PROVIDER);
            isNetworkEnabled = locationManager.isProviderEnabled(LocationManager.NETWORK_PROVIDER);

            Toast.makeText(context, "GPS Enabled Boot: " + isGpsEnabled + " Network Location Enabled Boot: " + isNetworkEnabled, Toast.LENGTH_LONG).show();

            // START DIALOG ACTIVITY
            if (isGpsEnabled || isNetworkEnabled) {
                Intent runDialogActivity = new Intent(context, DialogActivity.class);
                context.startActivity(runDialogActivity);

            }

        }



    // onReceive CLOSE BRACKET
    }



// CLOSE OF FULL CLASS
}

这是清单的样子:

清单.XML

<?xml version="1.0" encoding="utf-8"?>

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.ender.projects.receivertest">

    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />

    <uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />

    <application
        android:allowBackup="true"
        android:fullBackupContent="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme">

        <activity android:name=".MainActivity">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>

        <activity android:name=".DialogActivity">
        </activity>

        <receiver
            android:name=".MyReceiver"
            android:enabled="true"
            android:exported="true">
            <intent-filter>
                <action android:name="android.location.PROVIDERS_CHANGED" />

                <action android:name="android.intent.action.BOOT_COMPLETED" />

                <category android:name="android.intent.category.DEFAULT" />
            </intent-filter>
        </receiver>

    </application>

</manifest>

除了这些文件，我还有以下文件:
MainActivity.Java 和 DialogActivity.Java，都带有布局文件，
activity_main.xml 和 activity_dialog.xml 以匹配它们.

因此，如果我理解正确，当用户下载应用程序并打开它时，我的 MainActivity.Java 和相应的布局将启动.但我只是将其用作首选项屏幕.因此，一旦他们第一次打开应用程序，广播接收器应该会自动开始侦听要打开的 LOCATION 设置，对吗?我还希望广播侦听器继续侦听，即使在它接收到初始广播之后(这样如果他们关闭 LOCATION 设置，我的 onReceive 仍然会触发，然后他们再次将其打开......

那么 (A) 到目前为止我的代码看起来如何?
(B) 要完成我刚才描述的内容，需要添加什么内容?
(C) 当我打开 LOCATION 设置时，运行它会引发此错误.
..我该如何解决它?:
java.lang.RuntimeException:无法启动接收器 com.bryce.projects.servicesthreadsetc.MyReceiver:android.util.AndroidRuntimeException:从 Activity 上下文外部调用 startActivity() 需要 FLAG_ACTIVITY_NEW_TASK 标志.这真的是你想要的吗?


再次感谢所有帮助！

<receiver
    android:name=".LocationProviderChangedReceiver"
    android:exported="false" >
    <intent-filter>
        <action android:name="android.location.PROVIDERS_CHANGED" />
        <category android:name="android.intent.category.DEFAULT" />
    </intent-filter>
</receiver>

import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.location.LocationManager;
import android.util.Log;
import android.widget.Toast;

public class LocationProviderChangedReceiver extends BroadcastReceiver {
    private final static String TAG = "LocationProviderChanged";

    boolean isGpsEnabled;
    boolean isNetworkEnabled;

    @Override
    public void onReceive(Context context, Intent intent) {
        if (intent.getAction().matches("android.location.PROVIDERS_CHANGED"))
        {
            Log.i(TAG, "Location Providers changed");

            LocationManager locationManager = (LocationManager) context.getSystemService(Context.LOCATION_SERVICE);
            isGpsEnabled = locationManager.isProviderEnabled(LocationManager.GPS_PROVIDER);
            isNetworkEnabled = locationManager.isProviderEnabled(LocationManager.NETWORK_PROVIDER);

            //Start your Activity if location was enabled:
            if (isGpsEnabled || isNetworkEnabled) {
                  Intent i = new Intent(context, YourActivity.class);
                  context.startActivity(i);
            }
        }
    }
}

class LocationProviderChangedReceiver : BroadcastReceiver() {

    internal var isGpsEnabled: Boolean = false
    internal var isNetworkEnabled: Boolean = false

    override fun onReceive(context: Context, intent: Intent) {
        intent.action?.let { act ->
            if (act.matches("android.location.PROVIDERS_CHANGED".toRegex())) {
                val locationManager = context.getSystemService(Context.LOCATION_SERVICE) as LocationManager
                isGpsEnabled = locationManager.isProviderEnabled(LocationManager.GPS_PROVIDER)
                isNetworkEnabled = locationManager.isProviderEnabled(LocationManager.NETWORK_PROVIDER)

                Log.i(TAG, "Location Providers changed, is GPS Enabled: " + isGpsEnabled)

                //Start your Activity if location was enabled:
                if (isGpsEnabled || isNetworkEnabled) {
                    val i = Intent(context, YourActivity::class.java)
                    context.startActivity(i)
                }
            }
        }
    }

    companion object {
        private val TAG = "LocationProviderChanged"
    }
}

override fun onCreate(savedInstanceState: Bundle?) {
    super.onCreate(savedInstanceState)
    setContentView(R.layout.activity_main)

    val br: BroadcastReceiver = LocationProviderChangedReceiver()
    val filter = IntentFilter(LocationManager.PROVIDERS_CHANGED_ACTION)
    registerReceiver(br, filter)
}