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android - 无法从 PendingIntent 触发地理围栏转换 IntentService

转载 作者:行者123 更新时间:2023-12-02 14:27:14 25 4
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即使应用程序不在后台,我也想根据用户的当前位置动态更新地理围栏列表。所以我打电话GeofencingApi.addGeofences来自服务而不是 Activity 。

public void addGeofences()
{

if (!mGoogleApiClient.isConnected()) {
Log.v("TAG", getString(R.string.not_connected));
return;
}

try {
LocationServices.GeofencingApi.addGeofences(
mGoogleApiClient,
getGeofencingRequest(),
getGeofencePendingIntent(this)
).setResultCallback(this); // Result processed in onResult().
} catch (SecurityException securityException) {
logSecurityException(securityException);
}
}

获取 PendingIntent 的代码:

private PendingIntent getGeofencePendingIntent(Context c) {
if (mGeofencePendingIntent != null) {
return mGeofencePendingIntent;
}
Intent intent = new Intent(GeofenceService.this, GeofenceTransitionsIntentService.class);
return PendingIntent.getService(this, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT);
}

获取地理围栏请求的代码:

private  GeofencingRequest getGeofencingRequest() {
GeofencingRequest.Builder builder = new GeofencingRequest.Builder();
builder.setInitialTrigger(GeofencingRequest.INITIAL_TRIGGER_ENTER);
builder.addGeofences(mGeofenceList);
return builder.build();
}

当用户进入或退出地理围栏时,它不会触发GeofenceTransitionsIntentService。在 Activity 中实现时它工作得很好,但在服务中却不起作用。

注意:这些函数是在服务中定义和调用的,该服务根据用户当前位置动态更改 mGeofenceList。

编辑:

list :

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.android.routein" >

<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.GET_ACCOUNTS" />
<uses-permission android:name="android.permission.WAKE_LOCK" />
<uses-permission android:name="com.google.android.c2dm.permission.RECEIVE" />
<uses-permission android:name="android.permission.BLUETOOTH" />
<uses-permission android:name="android.permission.BLUETOOTH_ADMIN" />

<permission
android:name="com.example.gcm.permission.C2D_MESSAGE"
android:protectionLevel="signature" />



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

.....

<service android:name=".geofencing.GeofenceTransitionsIntentService" />

<meta-data
android:name="com.google.android.geo.API_KEY"
android:value="--My Api Key--" />

.....
</application>

最佳答案

如下示例:https://developer.android.com/training/location/geofencing.html代码:https://github.com/googlesamples/android-play-location/tree/master/Geofencing

用途:

 mGoogleApiClient.blockingConnect(TIME_OUT, TimeUnit.MILLISECONDS);

并添加/更改代码如下:

public class RegisterGeoIntentService extends IntentService implements GoogleApiClient.ConnectionCallbacks, GoogleApiClient.OnConnectionFailedListener, ResultCallback<Status> {

protected static final String TAG = "RegisterGeoIS";

private static final long TIME_OUT = 100;
protected GoogleApiClient mGoogleApiClient;
protected ArrayList<Geofence> mGeofenceList;
private PendingIntent mGeofencePendingIntent;

public RegisterGeoIntentService() {
super(TAG);
}

@Override
public void onCreate() {
super.onCreate();
Log.i(TAG, "Creating Intent service");
mGeofenceList = new ArrayList<Geofence>();
mGeofencePendingIntent = null;
}

@Override
protected void onHandleIntent(Intent intent) {
buildGoogleApiClient();
populateGeofenceList();
mGoogleApiClient.blockingConnect(TIME_OUT, TimeUnit.MILLISECONDS);
String connected = mGoogleApiClient.isConnected() ? "connected" : "disconnected";
Log.i(TAG, "Restoring geofence - status: " + connected);
addGeofencesButtonHandler();
}

...

public void addGeofencesButtonHandler() {
if (!mGoogleApiClient.isConnected()) {
Toast.makeText(this, getString(R.string.not_connected), Toast.LENGTH_SHORT).show();
return;
}

try {
LocationServices.GeofencingApi.addGeofences(
mGoogleApiClient,
// The GeofenceRequest object.
getGeofencingRequest(),
// A pending intent that that is reused when calling removeGeofences(). This
// pending intent is used to generate an intent when a matched geofence
// transition is observed.
getGeofencePendingIntent()
).await(TIME_OUT, TimeUnit.MILLISECONDS);
} catch (SecurityException securityException) {
// Catch exception generated if the app does not use ACCESS_FINE_LOCATION permission.
logSecurityException(securityException);
}
Log.i(TAG, "Trying to add Geofences - result: " + result.toString());
}

...

在 AndroidManifest 中添加以下内容:

    <service android:name=".RegisterGeoIntentService" />

调用它:

    Intent kickoff = new Intent(context, RegisterGeoIntentService.class);
context.startService(kickoff);

关于android - 无法从 PendingIntent 触发地理围栏转换 IntentService,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/32537914/

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