我正在尝试在我的应用程序中实现Geofence，但问题是当我在标记的位置时它没有触发。
我所做的是从Place Picker中设置纬度和经度。
我获取的值是正确的，因为我在Google Maps上放置了这个位置，因为我读到很多答案说人们设置了错误的经纬度值。
我有两个类：GeofenceSingleton.class和GeofenceTransitionsIntentService。
GeofenceSingleton.class看起来像：
public class GeofenceSingleton implements GoogleApiClient.ConnectionCallbacks, GoogleApiClient.OnConnectionFailedListener, ResultCallback<Status> {
private GoogleApiClient googleApiClient;
private static GeofenceSingleton _singleInstance;
private static Context appContext;
private static final String ERR_MSG = "Application Context is not set!! " +
"Please call GeofenceSngleton.init() with proper application context";
private PendingIntent mGeofencePendingIntent;
private static ArrayList<Geofence> mGeofenceList;
private GeofenceSingleton() {
if (appContext == null)
throw new IllegalStateException(ERR_MSG);
this.googleApiClient = new GoogleApiClient.Builder(this.appContext)
.addApi(LocationServices.API)
.addConnectionCallbacks(this)
.addOnConnectionFailedListener(this)
.build();
this.googleApiClient.connect();
mGeofenceList = new ArrayList<Geofence>();
}
/**
* @param applicationContext
*/
public static void init(Context applicationContext) {
appContext = applicationContext;
}
public static GeofenceSingleton getInstance() {
if (_singleInstance == null)
synchronized (GeofenceSingleton.class) {
if (_singleInstance == null)
_singleInstance = new GeofenceSingleton();
}
return _singleInstance;
}
@Override
public void onConnected(Bundle bundle) {
}
@Override
public void onConnectionSuspended(int i) {
}
@Override
public void onConnectionFailed(ConnectionResult connectionResult) {
}
public void addGeofence(Location location, String uid) {
mGeofenceList.add(new Geofence.Builder()
.setRequestId(uid)
.setCircularRegion(
location.getLatitude(),
location.getLongitude(),
500
)
.setTransitionTypes(Geofence.GEOFENCE_TRANSITION_ENTER)
.setExpirationDuration(1000000)
.build());
}
private GeofencingRequest getGeofencingRequest() {
GeofencingRequest.Builder builder = new GeofencingRequest.Builder();
builder.setInitialTrigger(GeofencingRequest.INITIAL_TRIGGER_ENTER);
builder.addGeofences(mGeofenceList);
return builder.build();
}
private PendingIntent getGeofencePendingIntent() {
// Reuse the PendingIntent if we already have it.
if (mGeofencePendingIntent != null) {
return mGeofencePendingIntent;
}
Intent intent = new Intent(appContext, GeofenceSingleton.class);
// We use FLAG_UPDATE_CURRENT so that we get the same pending intent back when calling
// addGeofences() and removeGeofences().
return PendingIntent.getService(appContext, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT);
}
public void startGeofencing() {
if (!googleApiClient.isConnected()) {
Toast.makeText(appContext, "API client not connected", Toast.LENGTH_SHORT).show();
return;
}
LocationServices.GeofencingApi.addGeofences(
googleApiClient,
// 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()
).setResultCallback(this); // Result processed in onResult().
Toast.makeText(appContext,"Geofencing started", Toast.LENGTH_LONG).show();
}
public void removeGeofence(){
LocationServices.GeofencingApi.removeGeofences(
googleApiClient,
// This is the same pending intent that was used in addGeofences().
getGeofencePendingIntent()
);
}
@Override
public void onResult(Status status) {
if (status.isSuccess()) {
// Update state and save in shared preferences.
Toast.makeText(
appContext,
"YO",
Toast.LENGTH_SHORT
).show();
} else {
Toast.makeText(
appContext,
"NOO",
Toast.LENGTH_SHORT
).show();
}
}
}
并且 GeofenceTransitionsIntentService
public class GeofenceTransitionsIntentService extends IntentService {
private static final String TAG = "Geofence-Service";
private Handler handler;
SharedPreferences sp;
SharedPreferences.Editor editor;
String EmailName, MessageEmail;
Context mContext;
Boolean EmailSent = false;
public GeofenceTransitionsIntentService() {
super(TAG);
}
@Override
public void onCreate() {
super.onCreate();
this.mContext = this;
sp = PreferenceManager.getDefaultSharedPreferences(this);
handler = new Handler();
}
@Override
protected void onHandleIntent(Intent intent) {
final GeofencingEvent geofencingEvent = GeofencingEvent.fromIntent(intent);
if (geofencingEvent.hasError()) {
Log.e(TAG, "Error in geofencing event");
return;
}
// Get the transition type.
final int geofenceTransition = geofencingEvent.getGeofenceTransition();
// Test that the reported transition was of interest.
if (geofenceTransition == 1) {
handler.post(new Runnable() {
@Override
public void run() {
Toast.makeText(getApplicationContext(), "Entered", Toast.LENGTH_SHORT).show();
sendNotification();
}
});
Log.i(TAG, "Entered");
}
else {
// Log the error.
handler.post(new Runnable() {
@Override
public void run() {
Toast.makeText(getApplicationContext(), "Sorry you are out", Toast.LENGTH_SHORT).show();
}
});
Log.e(TAG, String.valueOf(geofenceTransition));
}
}
private void sendNotification() {
Toast.makeText(GeofenceTransitionsIntentService.this, "HEEEEEEEY I'M IN", Toast.LENGTH_SHORT).show();
}
在我的
MainActivity中，我有以下内容：GeofenceSingleton.init(this); //If I don't call this the class doesn't work
this.geofenceSingleton = GeofenceSingleton.getInstance();
接下来我会按如下方式建立一个地理围栏（Geofence）：
Location geofence = new Location("");
geofence.setLatitude(Double.parseDouble(latitude));
geofence.setLongitude(Double.parseDouble(longitude));
geofenceSingleton.addGeofence(geofence, GeofenceKey);
geofenceSingleton.startGeofencing();
注意事项
我在我的manifest.xml中添加了<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
我将service声明为<service android:name=".GeofenceTransitionsIntentService"/>
并且我在我的build.gradle文件中添加了这一行： compile 'com.google.android.gms:play-services:7.8.0'
它只显示了Toast.makeText(appContext,"YO",Toast.LENGTH_SHORT).show();，这是因为状态是成功的，并且还显示了Toast.makeText(appContext,"Geofencing started", Toast.LENGTH_LONG).show();，这意味着已经开始。
问题
为什么我的IntentService从未被调用过？
我测试了一下，输入了我家的Lat/Long，应该会触发，不是吗？