| 21478 |
rajender |
1 |
/*
|
|
|
2 |
* Copyright (C) 2012 The Android Open Source Project
|
|
|
3 |
*
|
|
|
4 |
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
|
5 |
* you may not use this file except in compliance with the License.
|
|
|
6 |
* You may obtain a copy of the License at
|
|
|
7 |
*
|
|
|
8 |
* http://www.apache.org/licenses/LICENSE-2.0
|
|
|
9 |
*
|
|
|
10 |
* Unless required by applicable law or agreed to in writing, software
|
|
|
11 |
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
|
12 |
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
|
13 |
* See the License for the specific language governing permissions and
|
|
|
14 |
* limitations under the License.
|
|
|
15 |
*/
|
|
|
16 |
|
|
|
17 |
package com.android.volley.toolbox;
|
|
|
18 |
|
|
|
19 |
import android.content.Context;
|
|
|
20 |
import android.content.pm.PackageInfo;
|
|
|
21 |
import android.content.pm.PackageManager.NameNotFoundException;
|
|
|
22 |
import android.net.http.AndroidHttpClient;
|
|
|
23 |
import android.os.Build;
|
|
|
24 |
|
|
|
25 |
import com.android.volley.Network;
|
|
|
26 |
import com.android.volley.RequestQueue;
|
|
|
27 |
|
|
|
28 |
import java.io.File;
|
|
|
29 |
|
|
|
30 |
public class Volley {
|
|
|
31 |
|
|
|
32 |
/** Default on-disk cache directory. */
|
|
|
33 |
private static final String DEFAULT_CACHE_DIR = "volley";
|
|
|
34 |
|
|
|
35 |
/**
|
|
|
36 |
* Creates a default instance of the worker pool and calls {@link RequestQueue#start()} on it.
|
|
|
37 |
*
|
|
|
38 |
* @param context A {@link Context} to use for creating the cache dir.
|
|
|
39 |
* @param stack An {@link HttpStack} to use for the network, or null for default.
|
|
|
40 |
* @return A started {@link RequestQueue} instance.
|
|
|
41 |
*/
|
|
|
42 |
public static RequestQueue newRequestQueue(Context context, HttpStack stack) {
|
|
|
43 |
File cacheDir = new File(context.getCacheDir(), DEFAULT_CACHE_DIR);
|
|
|
44 |
|
|
|
45 |
String userAgent = "volley/0";
|
|
|
46 |
try {
|
|
|
47 |
String packageName = context.getPackageName();
|
|
|
48 |
PackageInfo info = context.getPackageManager().getPackageInfo(packageName, 0);
|
|
|
49 |
userAgent = packageName + "/" + info.versionCode;
|
|
|
50 |
} catch (NameNotFoundException e) {
|
|
|
51 |
}
|
|
|
52 |
|
|
|
53 |
if (stack == null) {
|
|
|
54 |
if (Build.VERSION.SDK_INT >= 9) {
|
|
|
55 |
stack = new HurlStack();
|
|
|
56 |
} else {
|
|
|
57 |
// Prior to Gingerbread, HttpUrlConnection was unreliable.
|
|
|
58 |
// See: http://android-developers.blogspot.com/2011/09/androids-http-clients.html
|
|
|
59 |
stack = new HttpClientStack(AndroidHttpClient.newInstance(userAgent));
|
|
|
60 |
}
|
|
|
61 |
}
|
|
|
62 |
|
|
|
63 |
Network network = new BasicNetwork(stack);
|
|
|
64 |
|
|
|
65 |
RequestQueue queue = new RequestQueue(new DiskBasedCache(cacheDir), network);
|
|
|
66 |
queue.start();
|
|
|
67 |
|
|
|
68 |
return queue;
|
|
|
69 |
}
|
|
|
70 |
|
|
|
71 |
/**
|
|
|
72 |
* Creates a default instance of the worker pool and calls {@link RequestQueue#start()} on it.
|
|
|
73 |
*
|
|
|
74 |
* @param context A {@link Context} to use for creating the cache dir.
|
|
|
75 |
* @return A started {@link RequestQueue} instance.
|
|
|
76 |
*/
|
|
|
77 |
public static RequestQueue newRequestQueue(Context context) {
|
|
|
78 |
return newRequestQueue(context, null);
|
|
|
79 |
}
|
|
|
80 |
}
|