You place it in the res/color/ folder of your project. This is just like any other ColorStateList xml. In this particular case we’ll be using a ColorStateList selector to change the color of the TextView. You’ve probably worked with selectors before. There’s too much code that deals with updating the view in here and it only gets worse if we add more labels. We need to get “not-error” color from each component, store it, switch the color to red and if the error is fixed, restore the colors again. Easy right? Here’s the example layout:Īnd a naive way to switch the label colors when there’s an error:īut this is kinda ugly. In one of the situations, if a section is invalid, the field labels should turn red. It’s live on Maven Central so easy to add to your build if you need it.Ī while ago, I built a form based app with lots of input fields and all the things that come with that, like validation and error messages. One thing that is still missing is the option for passing in arguments to the annotation processors, when I have the need for it I’ll add it, but pull requests are welcome. This is all based of a script that I’ve been using but it got a bit cumbersome to check out the script for each project and I thought providing it as a plugin might be useful for others as well. This is also true for the first case btw if the processor generates source, it will be added to the source set for the current flavor. The plugin will add the generated source to a source set so that AS will recognize it. By default these kinds of projects build fine in Android Studio, but the generated source isn’t on any source path in Android Studio so you might get errors there. Your annotation processor produces source which you want to reference in Android Studio. For this purpose the plugin sets up an apt configuration.Ģ. You have a processor that has a compiler part and an api part, you don’t want to get the compiler in your app.
There are two use cases for this plugin:1.
Here’s a small Gradle plugin that helps out if you have a project that includes an annotation processor.
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