这是问题所在：
添加地理围栏的服务：
public class GeofenceService extends Service implements GooglePlayServicesClient.ConnectionCallbacks,GooglePlayServicesClient.OnConnectionFailedListener,LocationClient.OnAddGeofencesResultListener,LocationClient.OnRemoveGeofencesResultListener { ... @Override public void onConnected(Bundle bundle) { Log.d(TAG,"onConnected"); switch (action){ case ADD: Log.d(TAG,"onConnected ADD"); locationClient.addGeofences(geofencesToAdd,getPendingIntent(),this); break; case REMOVE: Log.d(TAG,"onConnected REMOVE"); locationClient.removeGeofences(geofencesToRemove,this); break; } } private PendingIntent getPendingIntent(){ Intent intent = new Intent().setClass(this,TransitionsIntentService.class); intent.putExtra(EXTRA_DEALS,deals); return PendingIntent.getService(this,intent,PendingIntent.FLAG_CANCEL_CURRENT); } ... }
正如您所看到的,Intent会传递一些数据并启动TransitionIntentService：
public class TransitionsIntentService extends IntentService {
...
@Override
protected void onHandleIntent(Intent intent) {
deals = (ArrayList<Deal>) intent.getSerializableExtra(GeofenceService.EXTRA_DEALS); //THIS CAN BE NULL
int transitionType = LocationClient.getGeofenceTransition(intent);
List<Geofence> triggeredGeofences = LocationClient.getTriggeringGeofences(intent); //THIS CAN BE NULL
List<String> triggeredIds = new ArrayList<String>();
for (Geofence geofence : triggeredGeofences) {
Log.d("GEO","onHandle:" + geofence.getRequestId());
processGeofence(geofence,transitionType);
triggeredIds.add(geofence.getRequestId());
}
...
}
如果我尝试将getEera(…,deal)放入getPendingIntent方法,我会得到List< Geofence> triggeredGeofences = LocationClient.getTriggeringGeofences(intent)== NULL.
如果我不通过额外的一切工作正常.
我怎样才能传递额外的东西,还是从LocationClient获得额外的东西？
解决方法
我知道这是一个老问题,但我遇到了完全相同的症状和问题.基本上,似乎GeofenceEvent不能与意图中的Serializable额外共存.我找到的唯一解决方案是展平可序列化对象,并为每个字段使用一个单独的额外数据类型,如下例所示：
通过意图转移的对象：
public class MyObject {
public String stringfield;
public int intField;
public MyObject fromIntent(Intent intent) {
stringField = intent.getStringExtra("stringField");
intField = intent.getIntExtra("intField",-1);
return this;
}
public MyObject toIntent(Intent intent) {
intent.putExtra("stringField",stringField);
intent.putExtra("intField",intField);
return this;
}
}
创建和填充意图：
MyObject obj = ...; Intent intent = ...; myObject.toIntent(intent);
从收到的意图中提取数据：
Intent intent = ...; MyObject obj = new MyObject().fromIntent(intent);
