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