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Android example source code file (GeocoderProxy.java)

This example Android source code file (GeocoderProxy.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Android by Example" TM.

Java - Android tags/keywords

android, available, connection, content, context, geocoderparams, geocoderproxy, ibinder, igeocodeprovider, intent, list, location, os, remoteexception, service, serviceconnection, string, tag, util

The GeocoderProxy.java Android example source code

/*
 * Copyright (C) 2010 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.internal.location;

import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.content.ServiceConnection;
import android.location.Address;
import android.location.GeocoderParams;
import android.location.IGeocodeProvider;
import android.os.IBinder;
import android.os.RemoteException;
import android.os.SystemClock;
import android.util.Log;

import java.util.List;

/**
 * A class for proxying IGeocodeProvider implementations.
 *
 * {@hide}
 */
public class GeocoderProxy {

    private static final String TAG = "GeocoderProxy";

    private final Context mContext;
    private final Intent mIntent;
    private final Connection mServiceConnection = new Connection();
    private IGeocodeProvider mProvider;

    public GeocoderProxy(Context context, String serviceName) {
        mContext = context;
        mIntent = new Intent(serviceName);
        mContext.bindService(mIntent, mServiceConnection, Context.BIND_AUTO_CREATE);
    }

    private class Connection implements ServiceConnection {
        public void onServiceConnected(ComponentName className, IBinder service) {
            Log.d(TAG, "onServiceConnected " + className);
            synchronized (this) {
                mProvider = IGeocodeProvider.Stub.asInterface(service);
            }
        }

        public void onServiceDisconnected(ComponentName className) {
            Log.d(TAG, "onServiceDisconnected " + className);
            synchronized (this) {
                mProvider = null;
            }
        }
    }

    public String getFromLocation(double latitude, double longitude, int maxResults,
            GeocoderParams params, List<Address> addrs) {
        IGeocodeProvider provider;
        synchronized (mServiceConnection) {
            provider = mProvider;
        }
        if (provider != null) {
            try {
                return provider.getFromLocation(latitude, longitude, maxResults,
                        params, addrs);
            } catch (RemoteException e) {
                Log.e(TAG, "getFromLocation failed", e);
            }
        }
        return "Service not Available";
    }

    public String getFromLocationName(String locationName,
            double lowerLeftLatitude, double lowerLeftLongitude,
            double upperRightLatitude, double upperRightLongitude, int maxResults,
            GeocoderParams params, List<Address> addrs) {
        IGeocodeProvider provider;
        synchronized (mServiceConnection) {
            provider = mProvider;
        }
        if (provider != null) {
            try {
                return provider.getFromLocationName(locationName, lowerLeftLatitude,
                        lowerLeftLongitude, upperRightLatitude, upperRightLongitude,
                        maxResults, params, addrs);
            } catch (RemoteException e) {
                Log.e(TAG, "getFromLocationName failed", e);
            }
        }
        return "Service not Available";
    }
}

Other Android examples (source code examples)

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