> fieldCache = new ConcurrentHashMap<>();
34 |
35 | /**
36 | * Note that we use object key instead of string here, because string calculation will lose all
37 | * the benefits of 'HashMap', this is basically the solution of performance traps.
38 | *
39 | * So in fact we only need to use the structural comparison results of the reflection object.
40 | *
41 | * @see benchmarks for ART
42 | * @see benchmarks for JVM
43 | */
44 | private abstract static class MemberCacheKey {
45 | private final int hash;
46 |
47 | protected MemberCacheKey(int hash) {
48 | this.hash = hash;
49 | }
50 |
51 | @Override
52 | public abstract boolean equals(@Nullable Object obj);
53 |
54 | @Override
55 | public final int hashCode() {
56 | return hash;
57 | }
58 |
59 | static final class Field extends MemberCacheKey {
60 | private final Class clazz;
61 | private final String name;
62 |
63 | public Field(Class clazz, String name) {
64 | super(Objects.hash(clazz, name));
65 | this.clazz = clazz;
66 | this.name = name;
67 | }
68 |
69 | @Override
70 | public boolean equals(Object o) {
71 | if (this == o) return true;
72 | if (!(o instanceof Field field)) return false;
73 | return Objects.equals(clazz, field.clazz) && Objects.equals(name, field.name);
74 | }
75 |
76 | @NonNull
77 | @Override
78 | public String toString() {
79 | return clazz.getName() + "#" + name;
80 | }
81 | }
82 | }
83 |
84 | /**
85 | * Look up a field in a class and set it to accessible.
86 | *
87 | * @param clazz The class which either declares or inherits the field.
88 | * @param fieldName The field name.
89 | * @return A reference to the field.
90 | * @throws NoSuchFieldError In case the field was not found.
91 | */
92 | public static Field findField(Class clazz, String fieldName) {
93 | MemberCacheKey.Field key = new MemberCacheKey.Field(clazz, fieldName);
94 |
95 | return fieldCache.computeIfAbsent(key, k -> {
96 | try {
97 | Field newField = findFieldRecursiveImpl(k.clazz, k.name);
98 | newField.setAccessible(true);
99 | return Optional.of(newField);
100 | } catch (NoSuchFieldException e) {
101 | return Optional.empty();
102 | }
103 | }).orElseThrow(() -> new NoSuchFieldError(key.toString()));
104 | }
105 |
106 | private static Field findFieldRecursiveImpl(Class clazz, String fieldName) throws NoSuchFieldException {
107 | try {
108 | return clazz.getDeclaredField(fieldName);
109 | } catch (NoSuchFieldException e) {
110 | while (true) {
111 | clazz = clazz.getSuperclass();
112 | if (clazz == null || clazz.equals(Object.class))
113 | break;
114 |
115 | try {
116 | return clazz.getDeclaredField(fieldName);
117 | } catch (NoSuchFieldException ignored) {
118 | }
119 | }
120 | throw e;
121 | }
122 | }
123 |
124 | /**
125 | * Returns the value of an object field in the given object instance. A class reference is not sufficient! See also {@link #findField}.
126 | */
127 | public static Object getObjectField(Object obj, String fieldName) {
128 | try {
129 | return findField(obj.getClass(), fieldName).get(obj);
130 | } catch (IllegalAccessException e) {
131 | throw new IllegalAccessError(e.getMessage());
132 | }
133 | }
134 |
135 | /**
136 | * For inner classes, returns the surrounding instance, i.e. the {@code this} reference of the surrounding class.
137 | */
138 | public static Object getSurroundingThis(Object obj) {
139 | return getObjectField(obj, "this$0");
140 | }
141 | }
--------------------------------------------------------------------------------
/app/src/main/res/drawable-ldrtl/checklist_24.xml:
--------------------------------------------------------------------------------
1 |
7 |
10 |
11 |
--------------------------------------------------------------------------------
/app/src/main/res/drawable/baseline_fiber_manual_record_24.xml:
--------------------------------------------------------------------------------
1 |
2 |
3 |
4 |
5 |
6 |
--------------------------------------------------------------------------------
/app/src/main/res/drawable/baseline_screenshot_24.xml:
--------------------------------------------------------------------------------
1 |
2 |
3 |
4 |
5 |
6 |
--------------------------------------------------------------------------------
/app/src/main/res/drawable/checklist_24.xml:
--------------------------------------------------------------------------------
1 |
7 |
10 |
11 |
--------------------------------------------------------------------------------
/app/src/main/res/drawable/error_24.xml:
--------------------------------------------------------------------------------
1 |
7 |
10 |
11 |
--------------------------------------------------------------------------------
/app/src/main/res/drawable/ic_launcher_foreground.xml:
--------------------------------------------------------------------------------
1 |
6 |
10 |
13 |
16 |
17 |
18 |
--------------------------------------------------------------------------------
/app/src/main/res/drawable/ic_launcher_round.xml:
--------------------------------------------------------------------------------
1 |
2 |
3 | -
4 |
5 |
6 |
9 |
10 |
11 | -
14 |
17 |
18 |
--------------------------------------------------------------------------------
/app/src/main/res/drawable/splash_background.xml:
--------------------------------------------------------------------------------
1 |
2 |
3 |
3 |
4 | With the release of Android 14, Google added an API to enable app developers to detect screenshots. This API has since been adopted by popular apps such as Snapchat.
5 |
6 | CaptureSposed is an Xposed module that effectively disables this API as well as the screen recording detection API added in Android 15.
7 |
8 | **⚠️ WARNING:** CaptureSposed is intended for rooted devices running Android 14 or newer and requires Xposed. The required Xposed variant to use is LSPosed. Other Xposed variants will not work. This module cannot be guaranteed to work on all devices. In the worst case, it can cause a bootloop. Use at your own risk. Additionally, this module does not protect against screenshot detection from apps that use the pre-Android 14 approach of using file system listeners to detect screenshots ([ref 1](https://abangfadli.medium.com/shotwatch-android-screenshot-detector-library-6a75d7242109), [ref 2](https://viveksb007.wordpress.com/2017/11/10/how-snapchat-detects-when-screenshot-is-taken-hypothesis/)).
9 |
10 | 
12 | 
13 | 
15 | 
16 |