1 /*
2  * Copyright (C) 2014 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.launcher3.compat;
18 
19 import android.content.Context;
20 
21 import com.android.launcher3.Utilities;
22 
23 import java.util.HashMap;
24 
25 public abstract class PackageInstallerCompat {
26 
27     public static final int STATUS_INSTALLED = 0;
28     public static final int STATUS_INSTALLING = 1;
29     public static final int STATUS_FAILED = 2;
30 
31     private static final Object sInstanceLock = new Object();
32     private static PackageInstallerCompat sInstance;
33 
getInstance(Context context)34     public static PackageInstallerCompat getInstance(Context context) {
35         synchronized (sInstanceLock) {
36             if (sInstance == null) {
37                 if (Utilities.ATLEAST_LOLLIPOP) {
38                     sInstance = new PackageInstallerCompatVL(context);
39                 } else {
40                     sInstance = new PackageInstallerCompatV16();
41                 }
42             }
43             return sInstance;
44         }
45     }
46 
47     /**
48      * @return a map of active installs to their progress
49      */
updateAndGetActiveSessionCache()50     public abstract HashMap<String, Integer> updateAndGetActiveSessionCache();
51 
onStop()52     public abstract void onStop();
53 
54     public static final class PackageInstallInfo {
55         public final String packageName;
56 
57         public int state;
58         public int progress;
59 
PackageInstallInfo(String packageName)60         public PackageInstallInfo(String packageName) {
61             this.packageName = packageName;
62         }
63 
PackageInstallInfo(String packageName, int state, int progress)64         public PackageInstallInfo(String packageName, int state, int progress) {
65             this.packageName = packageName;
66             this.state = state;
67             this.progress = progress;
68         }
69     }
70 }
71