| /* |
| * Copyright (C) 2011 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.android.gallery3d.ui; |
| |
| import android.content.Context; |
| import android.location.Address; |
| import android.os.Handler; |
| import android.os.Looper; |
| |
| import com.android.gallery3d.app.AbstractGalleryActivity; |
| import com.android.gallery3d.data.MediaDetails; |
| import com.android.gallery3d.util.Future; |
| import com.android.gallery3d.util.FutureListener; |
| import com.android.gallery3d.util.GalleryUtils; |
| import com.android.gallery3d.util.ReverseGeocoder; |
| import com.android.gallery3d.util.ThreadPool.Job; |
| import com.android.gallery3d.util.ThreadPool.JobContext; |
| |
| public class DetailsAddressResolver { |
| private AddressResolvingListener mListener; |
| private final AbstractGalleryActivity mContext; |
| private Future<Address> mAddressLookupJob; |
| private final Handler mHandler; |
| |
| private class AddressLookupJob implements Job<Address> { |
| private double[] mLatlng; |
| |
| protected AddressLookupJob(double[] latlng) { |
| mLatlng = latlng; |
| } |
| |
| @Override |
| public Address run(JobContext jc) { |
| ReverseGeocoder geocoder = new ReverseGeocoder(mContext.getAndroidContext()); |
| return geocoder.lookupAddress(mLatlng[0], mLatlng[1], true); |
| } |
| } |
| |
| public interface AddressResolvingListener { |
| public void onAddressAvailable(String address); |
| } |
| |
| public DetailsAddressResolver(AbstractGalleryActivity context) { |
| mContext = context; |
| mHandler = new Handler(Looper.getMainLooper()); |
| } |
| |
| public String resolveAddress(double[] latlng, AddressResolvingListener listener) { |
| mListener = listener; |
| mAddressLookupJob = mContext.getThreadPool().submit( |
| new AddressLookupJob(latlng), |
| new FutureListener<Address>() { |
| @Override |
| public void onFutureDone(final Future<Address> future) { |
| mAddressLookupJob = null; |
| if (!future.isCancelled()) { |
| mHandler.post(new Runnable() { |
| @Override |
| public void run() { |
| updateLocation(future.get()); |
| } |
| }); |
| } |
| } |
| }); |
| return GalleryUtils.formatLatitudeLongitude("(%f,%f)", latlng[0], latlng[1]); |
| } |
| |
| private void updateLocation(Address address) { |
| if (address != null) { |
| Context context = mContext.getAndroidContext(); |
| String parts[] = { |
| address.getAdminArea(), |
| address.getSubAdminArea(), |
| address.getLocality(), |
| address.getSubLocality(), |
| address.getThoroughfare(), |
| address.getSubThoroughfare(), |
| address.getPremises(), |
| address.getPostalCode(), |
| address.getCountryName() |
| }; |
| |
| String addressText = ""; |
| for (int i = 0; i < parts.length; i++) { |
| if (parts[i] == null || parts[i].isEmpty()) continue; |
| if (!addressText.isEmpty()) { |
| addressText += ", "; |
| } |
| addressText += parts[i]; |
| } |
| String text = String.format("%s : %s", DetailsHelper.getDetailsName( |
| context, MediaDetails.INDEX_LOCATION), addressText); |
| mListener.onAddressAvailable(text); |
| } |
| } |
| |
| public void cancel() { |
| if (mAddressLookupJob != null) { |
| mAddressLookupJob.cancel(); |
| mAddressLookupJob = null; |
| } |
| } |
| } |