| /* |
| * 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 com.android.volley.toolbox; |
| |
| 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 java.io.File; |
| |
| public class Volley { |
| |
| /** 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. |
| */ |
| public static RequestQueue newRequestQueue(Context context, HttpStack stack) { |
| 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), 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); |
| } |
| } |