blob: e2c4992a44f7f5fede7b4e26438c0cdbb37773dc (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
|
/*
* Copyright (C) 2018 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.launcher3.util;
import android.content.Context;
import android.text.TextUtils;
import android.util.Log;
import java.lang.reflect.InvocationTargetException;
/**
* An interface to indicate that a class is dynamically loaded using resource overlay, hence its
* class name and constructor should be preserved by proguard
*/
public interface ResourceBasedOverride {
class Overrides {
private static final String TAG = "Overrides";
public static <T extends ResourceBasedOverride> T getObject(
Class<T> clazz, Context context, int resId) {
String className = context.getString(resId);
if (!TextUtils.isEmpty(className)) {
try {
Class<?> cls = Class.forName(className);
return (T) cls.getDeclaredConstructor(Context.class).newInstance(context);
} catch (ClassNotFoundException | InstantiationException | IllegalAccessException
| ClassCastException | NoSuchMethodException | InvocationTargetException e) {
Log.e(TAG, "Bad overriden class", e);
}
}
try {
return clazz.newInstance();
} catch (InstantiationException|IllegalAccessException e) {
throw new RuntimeException(e);
}
}
}
}
|