How do I see with Android Studio from where the generated code in a BR file originates?

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I'm entering a new codebase and have to understand how it works. There's a BR file that's autogenerated. I think it comes from the Data Binding Library. That BR files contains a lot of values, but I see no way to automatically search for the area in the code from where the content of that file gets specified.

When I have for example:

    public static final int currentDate = 35;
    public static final int currentEmail = 36;

How do I lookup where the code that results in those variables existing originates?

Generated binding classes, A binding class is generated for each layout file. classes or the DataBindingUtil class, as shown in the following code example: setVariable(BR.item, item); To open the Device File Explorer, click View > Tool Windows > Device File Explorer (or click the Device File Explorer button in the tool window bar). As shown in figure 1 you can locate the .trace files by navigating to your app's package-specific directory. Figure 1. Locating the trace logs using the Device File Explorer.

Usually generated code relies under this path:

path to project/app/build/generated/rs

To check that in Android studio, you can change project structure view from 'Android' to 'Project' and follow above path to see generated code.

Navigate to a destination, Alternatively, to generate Kotlin code suitable for Kotlin-only modules add: useAndroidX=true in your gradle.properties file as per Migrating to AndroidX. Safe Args generates a class for each destination where an action originates. To handle other common UI components, such as the top app bar and  There has been many topics like this before and unfortunately I couldn't find anything related to remove or hiding this in the Android Studio. You also, if you remove it, it will reappear again since it is auto-generated by Android Studio so, perhaps this is gonna be a feature request for the next releases of Android Studio IDE itself.

That's a bit tricky to find. You can right click on a field and choose "Find Usages" but that will only show you where it's used, not where it originates from. The fields in BR.java are generated from methods marked with @Bindable Like

@Bindable
public String getSomeStringValue() {
    return "Some arbitrary string.";
}

Which will result in a field in the BR.java file looking like:

public static final int someStringValue = 126;

So to be able to find where something in the BR-file originates from you take what's in the BR.java file and slap on a "get" and then search for it. Myself, I would probably search for @Bindable instead.

New features in Android Studio Preview, Click File > Settings > Tools > Emulator (or Android Studio > Preferences and select View > Tool Windows > Database Inspector from the menu bar. where a resource property value originates in the source code and navigate Now, the Motion Editor can generate this XML for you, with support for start  Although the current Android Gradle Plugin doesn't generate a R.java anymore you can still inspect the corresponding class file (see Sergey V.`s answer).. However, if you (like probably in most cases) just want to look up the generated IDs for your resources, there is an easier way:

Improve your code with lint checks, Android Studio provides a code scanning tool called lint that can The lint tool checks your Android project source files for potential From the menu bar, select Analyze > Inspect Code. Android Studio comes with a selection of lint and other inspection profiles that are updated through Android updates. If you don’t need to make any changes to your Dropsource project in an IDE, you can request the Dropsource publishing service to have your app launched without the need to download your code at all. Importing into Android Studio. Open Android Studio and select Open an Existing Android Studio Project or File, Open. Locate the folder you downloaded from Dropsource and unzipped, choosing the “build.gradle” file in the root directory.

Get started with the Navigation component, Add the app bar Note: The Navigation component requires Android Studio 3.3 or A navigation graph is a resource file that contains all of your Alternatively, to generate Kotlin code suitable for Kotlin-only modules add For each action, Safe Args also generates a class for each originating destination,  If you find an issue that impacts one of the Android Developer tools, such as Android Studio, NDK, Emulator, System Images, or Jetpack, file a bug in one of these components. As the tools have different requirements, read the General Bug filing details and the linked details for the tool.

Shrink, obfuscate, and optimize your app, Learn how to shrink code in your release build to remove unused code and some of these rules files, some rules may be generated automatically by While inspecting the app's code, R8 determines that methods foo() , faz() , and bar() are use the ReTrace script, which comes packaged with ProGuard. The Android build tools use the package attribute for two things: It applies this name as the namespace for your app's generated R.java class. Example: With the above manifest, the R class will be com.example.myapp.R. It uses it to resolve any relative class names that are declared in the manifest file.

Comments
  • AndroidStudio's find usages should work