Java tutorial
/* * Copyright (C) 2012 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 jp.egg.android.request.volley; import java.io.File; import java.net.CookieManager; import java.net.CookieStore; import android.content.Context; import android.content.pm.PackageInfo; import android.content.pm.PackageManager.NameNotFoundException; import android.net.http.AndroidHttpClient; import android.os.Build; import com.android.volley.Network; import com.android.volley.RequestQueue; import com.android.volley.toolbox.BasicNetwork; import com.android.volley.toolbox.DiskBasedCache; import com.android.volley.toolbox.HttpClientStack; import com.android.volley.toolbox.HttpStack; import com.android.volley.toolbox.HurlStack; import org.apache.http.impl.client.BasicCookieStore; import org.apache.http.impl.client.DefaultHttpClient; public class EggVolley { /** Default on-disk cache directory. */ private static final String DEFAULT_CACHE_DIR = "volley"; /** * Creates a default instance of the worker pool and calls {@link RequestQueue#start()} on it. * * @param context A {@link Context} to use for creating the cache dir. * @param stack An {@link HttpStack} to use for the network, or null for default. * @return A started {@link RequestQueue} instance. */ protected static RequestQueue newRequestQueue(Context context, HttpStack stack, int cacheSizeInBytes) { File cacheDir = new File(context.getCacheDir(), DEFAULT_CACHE_DIR); String userAgent = "volley/0"; try { String packageName = context.getPackageName(); PackageInfo info = context.getPackageManager().getPackageInfo(packageName, 0); userAgent = packageName + "/" + info.versionCode; } catch (NameNotFoundException e) { } if (stack == null) { if (Build.VERSION.SDK_INT >= 9) { stack = new HurlStack(); } else { // Prior to Gingerbread, HttpUrlConnection was unreliable. // See: http://android-developers.blogspot.com/2011/09/androids-http-clients.html stack = new HttpClientStack(AndroidHttpClient.newInstance(userAgent)); } } Network network = new BasicNetwork(stack); RequestQueue queue = new RequestQueue(new DiskBasedCache(cacheDir, cacheSizeInBytes), network); queue.start(); return queue; } // /** // * Creates a default instance of the worker pool and calls {@link RequestQueue#start()} on it. // * // * @param context A {@link Context} to use for creating the cache dir. // * @return A started {@link RequestQueue} instance. // */ // public static RequestQueue newRequestQueue(Context context) { // return newRequestQueue(context, null, ); // } /** * Creates a default instance of the worker pool and calls {@link RequestQueue#start()} on it. * * @param context A {@link Context} to use for creating the cache dir. * @return A started {@link RequestQueue} instance. */ public static RequestQueue newRequestQueue(Context context, int cacheSizeInBytes) { // DefaultHttpClient client = new DefaultHttpClient(); // BasicCookieStore store = new BasicCookieStore(); // client.setCookieStore(store); // HttpClientStack stack = new HttpClientStack(client); // return newRequestQueue(context, stack, cacheSizeInBytes); return newRequestQueue(context, null, cacheSizeInBytes); } }