Have you ever tried to launch your app in different scheme but Xcode said it could not launch it? It was perfectly fine to launch in one scheme but not the other scheme. And you received an error prompt just like the above image. Then you would click the “Details”…

I guess you’re here is because you’re using M1 for your Xcode project with Cocoapods, but you cannot perform pod install right? The error message is a little frunstrating but at the same time it is very clear: LoadError — dlopen(/Library/Ruby/Gems/2.6.0/gems/ffi-1.14.2/lib/ffi_c.bundle, 0x0009): missing compatible arch in /Library/Ruby/Gems/2.6.0/gems/ffi-1.14.2/lib/ffi_c.bundle — /Library/Ruby/Gems/2.6.0/gems/ffi-1.14.2/lib/ffi_c.bundle

Have you ever experience your fragment’s UI not updating after exit from another fragment? I spent hours to find out that the reason of this weirdness is that the fragment state after supportFragmentManager.popBackStack() is causing this issue supportFragmentManager.popBackStack() So, the solution is to use supportFragmentManager.popBackStackImmediate("theFragment", 0) instead, where the “theFragment”…

Previously, we talked about this version of Android Studio has an issue of Launcher Activity (See here). Now we got another issue about Android Studio 4.0.1, which is Gradle Build Process failed at ':app:processDebugResources' This issue will produce log like: AGPBI: {“kind”:”error”,”text”:”Android resources linking failed” ….. AAPT: Error: failed writing…

Android Studio 4.0.1 just came out July 2020 and it has some instability issues. One of which is unable to launch your launcher activity for your project if you uninstalled it on the device. The error from Android Studio is as below: Error while executing: am start -n “LauncherActivity” -a…

CameraX is a relatively new Camera API in Android. Unlike the predecessors, CameraX is easy to use and requires less tweaking in order to adopt a Camera View in your application. Since, in the official sample code, Google made it a little buggy (for good intentions though) and they only…

When we implementing OpenCV to Android Camera Project, the app crashes for no reason. Turns out the solution is really silly Just add the below line before starting the camera: OpenCVLoader.initDebug() Then this error will go away for good. That’s it. Happy coding. Let me know if you find better solution or approach in the comment section below. ;) Find me at Twitter @rick3817

In the past, we, as iOS framework authors, used to build Fat .Framework file to distribute. After WWDC2019, we can now build the Framework file with .xcframework extension using this script: Make a new target “Aggregate” on the Cross-Platform tab, and put the above script in the Build Phrase by adding a Run Script. Then you can start archiving you XCFramework ;)

Apple just announced what’s new in web/safari on WWDC2020. Let’s take a look at what API changes are concerning web developers and wkwebview users. 1. Web Animation API Web Animation API is new in Safari 13.1. i. Create and Control animation in JavaScript — Developer can now directly create and control the playback of…