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76 lines
2.3 KiB
76 lines
2.3 KiB
/*
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* Copyright (C) 2009 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.camera;
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import android.location.Address;
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import android.location.Geocoder;
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import android.os.AsyncTask;
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import android.util.Log;
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import java.io.IOException;
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import java.util.List;
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// Reverse geocoding may take a long time to return so we put it in AsyncTask.
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public class ReverseGeocoderTask extends AsyncTask<Void, Void, String> {
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private static final String TAG = "ReverseGeocoder";
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public static interface Callback {
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public void onComplete(String location);
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}
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private Geocoder mGeocoder;
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private float mLat;
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private float mLng;
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private Callback mCallback;
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public ReverseGeocoderTask(Geocoder geocoder, float[] latlng,
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Callback callback) {
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mGeocoder = geocoder;
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mLat = latlng[0];
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mLng = latlng[1];
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mCallback = callback;
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}
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@Override
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protected String doInBackground(Void... params) {
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String value = MenuHelper.EMPTY_STRING;
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try {
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List<Address> address =
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mGeocoder.getFromLocation(mLat, mLng, 1);
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StringBuilder sb = new StringBuilder();
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for (Address addr : address) {
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int index = addr.getMaxAddressLineIndex();
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sb.append(addr.getAddressLine(index));
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}
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value = sb.toString();
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} catch (IOException ex) {
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value = MenuHelper.EMPTY_STRING;
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Log.e(TAG, "Geocoder exception: ", ex);
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} catch (RuntimeException ex) {
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value = MenuHelper.EMPTY_STRING;
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Log.e(TAG, "Geocoder exception: ", ex);
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}
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return value;
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}
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@Override
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protected void onPostExecute(String location) {
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mCallback.onComplete(location);
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}
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}
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