When selecting a QR code from the gallery for recognition, if the background is colored, it will not be recognized. If the background is white, it will be ok.

[Jingzhenzxz]

recurrent:

1. Open your QR code business card in "Personal Information" on WeChat, first select a white background and click "Save", then select a color background and click "Save".
2. Run the sample app on an Android phone (mine is a Xiaomi phone, Android 13), select "Default Mode", select "scan code", select "Select a picture from the gallery", and select the 2D image with a white background just saved. The code can be successfully recognized, but if you select the QR code with a color background that you just saved, the recognition fails.

中文版 复现：

1. 在微信的“个人信息”中打开自己的二维码名片，先选择白色背景，点击”保存“，再选择一个彩色背景，点击“保存”。
2. 在安卓手机（我的是小米手机，Android 13）上运行示例app，选择“Default Mode”，选择“scan code”，选择“从图库中选择图片”，选择刚才保存的白色背景的二维码，可以成功识别，但如果选择刚才保存的彩色背景的二维码，则识别失败。

[arcticfox1919]

@Jingzhenzxz The ability to scan is provided by Huawei's SDK, and it seems that the SDK does not support colored backgrounds.