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.systemui.statusbar.phone;
18 
19 import android.content.Context;
20 
21 import com.android.systemui.R;
22 
23 import static android.util.Pools.SynchronizedPool;
24 
25 /**
26  * A class to generate {@link VelocityTrackerInterface}, depending on the configuration.
27  */
28 public class VelocityTrackerFactory {
29 
30     public static final String PLATFORM_IMPL = "platform";
31     public static final String NOISY_IMPL = "noisy";
32 
obtain(Context ctx)33     public static VelocityTrackerInterface obtain(Context ctx) {
34         String tracker = ctx.getResources().getString(R.string.velocity_tracker_impl);
35         switch (tracker) {
36             case NOISY_IMPL:
37                 return NoisyVelocityTracker.obtain();
38             case PLATFORM_IMPL:
39                 return PlatformVelocityTracker.obtain();
40             default:
41                 throw new IllegalStateException("Invalid tracker: " + tracker);
42         }
43     }
44 }
45