Notification Icon Fix
A module for AOSP, MIUI and HyperOS. Using an algorithm to convert white notification icons into recognizable icons.
Supported System
- Android 8.1 ~ AOSP main branch
- HyperOS
- MIUI 10 and above
Screenshots
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Algorithm Details
- Determine and reduce oversized icons to the maximum allowed icon size
- Map the icon pixel position to a two-dimensional coordinate system and calculate the geometric center
- (For MIUI) Detect transparent borders and trim icons
- (For MIUI and HyperOS) Determine if the icon has a marketing banner and replace it with a perfect icon (Need to install it yourself)
- (For HyperOS) Determine if the icon is a weather icon, and replace it with an MAML icon with real-time temperature (there is a race on HyperOS, which shows that the temperature area is blank, which is a system bug)
- Calculate the average lumens, excluding transparent pixels
- Quantify the most common color of edge pixels
- Calculate the Euclidean distance between the color of the edge pixel and the most common color obtained above in the Lab color space to determine whether the icon has a border
- Determine whether the icon background is light or dark
- Use K-means quantizer to extract the primary color of the icon
- Invert the icon foreground according to the background and remove the border
- Determine the actual visible area of the icon and remove the blank area based on the visual center
- Final result output, cache icon, and accent color to WeakHashMap
Package
io.github.howard20181.notificationiconfix
Authors
Releases
1.6.10
Release Type: Stable
9/9/2025, 4:32:04 PM
Changelog
- Fixed the media notification hook for Android R~T. Some car system UIs use an older version of media notifications even on Android T, but I'm probably the only user using this module in my car.
- Attempted to improve compatibility with Evolution-X. While keeping compatibility with third-party ROM changes like this tends to be a waste of time, it only requires three lines of code.
- Added two pixels to the outer border of the icon.
It's time to rewrite the icon generation algorithm. It's currently based on a "heuristic foreground extraction" algorithm written in Java. In layman's terms, it redraws the icon based on average brightness, but tries to optimize for edges. There are a ton of issues. It's impossible to cram OpenCV into the system module. Should I switch to the Sobel operator? Or implement erosion manually in Java? Anyway, I can't call external packages, so I'll have to write my own magic. My previous plan to use a third-party icon library hasn't been put on the agenda.
变更日志
- 为Android R~T修复媒体通知 hook。有些车机的系统界面即使是Android T 也在用低版本的媒体通知，但是车载上用这个模块的用户可能只有我。
- 尝试兼容 Evolution-X。虽然不应该浪费时间去兼容这种第三方ROM变更，但是只需要3行代码。
- 图标外边界增加2行像素。
生成图标的算法是时候重写了，现在是Java写的“启发式前景提取”，说人话是基于平均亮度的图标重绘，只不过尽量根据边的情况优化，一堆问题。也不可能把OpenCV塞进系统模块里。之后改用索伯算子？或者是手工用Java实现腐蚀？反正不能调用外部包，只能自己写魔法。之前计划的直接用第三方绘制的图标库也没提上日程。