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
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
|
/*
* Copyright (C) 2017 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.compat;
import android.annotation.TargetApi;
import android.app.WallpaperManager;
import android.content.Context;
import android.graphics.Color;
import android.os.Build;
import android.os.Handler;
import android.support.annotation.Nullable;
import android.util.Log;
import java.lang.reflect.InvocationHandler;
import java.lang.reflect.Method;
import java.lang.reflect.Proxy;
@TargetApi(Build.VERSION_CODES.O)
public class WallpaperManagerCompatVOMR1 extends WallpaperManagerCompat {
private static final String TAG = "WMCompatVOMR1";
private final WallpaperManager mWm;
private final Class mOCLClass;
private final Method mAddOCLMethod;
private final Method mWCGetMethod;
private final Method mWCGetPrimaryColorMethod;
private final Method mWCGetSecondaryColorMethod;
private final Method mWCGetTertiaryColorMethod;
private final Method mWCColorHintsMethod;
WallpaperManagerCompatVOMR1(Context context) throws Exception {
mWm = context.getSystemService(WallpaperManager.class);
mOCLClass = Class.forName("android.app.WallpaperManager$OnColorsChangedListener");
mAddOCLMethod = WallpaperManager.class.getDeclaredMethod(
"addOnColorsChangedListener", mOCLClass, Handler.class);
mWCGetMethod = WallpaperManager.class.getDeclaredMethod("getWallpaperColors", int.class);
Class wallpaperColorsClass = mWCGetMethod.getReturnType();
mWCGetPrimaryColorMethod = wallpaperColorsClass.getDeclaredMethod("getPrimaryColor");
mWCGetSecondaryColorMethod = wallpaperColorsClass.getDeclaredMethod("getSecondaryColor");
mWCGetTertiaryColorMethod = wallpaperColorsClass.getDeclaredMethod("getTertiaryColor");
mWCColorHintsMethod = wallpaperColorsClass.getDeclaredMethod("getColorHints");
}
@Nullable
@Override
public WallpaperColorsCompat getWallpaperColors(int which) {
try {
return convertColorsObject(mWCGetMethod.invoke(mWm, which));
} catch (Exception e) {
Log.e(TAG, "Error calling wallpaper API", e);
return null;
}
}
@Override
public void addOnColorsChangedListener(final OnColorsChangedListenerCompat listener) {
Object onChangeListener = Proxy.newProxyInstance(
WallpaperManager.class.getClassLoader(),
new Class[]{mOCLClass},
new InvocationHandler() {
@Override
public Object invoke(Object o, Method method, Object[] objects)
throws Throwable {
String methodName = method.getName();
if ("onColorsChanged".equals(methodName)) {
listener.onColorsChanged(
convertColorsObject(objects[0]), (Integer) objects[1]);
} else if ("toString".equals(methodName)) {
return listener.toString();
}
return null;
}
});
try {
mAddOCLMethod.invoke(mWm, onChangeListener, null);
} catch (Exception e) {
Log.e(TAG, "Error calling wallpaper API", e);
}
}
private WallpaperColorsCompat convertColorsObject(Object colors) throws Exception {
if (colors == null) {
return null;
}
Color primary = (Color) mWCGetPrimaryColorMethod.invoke(colors);
Color secondary = (Color) mWCGetSecondaryColorMethod.invoke(colors);
Color tertiary = (Color) mWCGetTertiaryColorMethod.invoke(colors);
int primaryVal = primary != null ? primary.toArgb() : 0;
int secondaryVal = secondary != null ? secondary.toArgb() : 0;
int tertiaryVal = tertiary != null ? tertiary.toArgb() : 0;
int colorHints = (Integer) mWCColorHintsMethod.invoke(colors);
return new WallpaperColorsCompat(primaryVal, secondaryVal, tertiaryVal, colorHints);
}
}
|
