Android Gradle Plugin for defining default wrap_content width/height attributes for views in layout. No need to declare those. Works with Data Binding now only. Add this code to your module's build.gradle and you'll get it automatically

build.gradle

apply plugin: 'com.google.gms.google-services'


class DefaultAttributesPlugin implements Plugin<Project> {
    void apply(Project project) {
        project.afterEvaluate {
            def task = project.task('checkAttributes', type: DefaultAttributes)
            project.android.applicationVariants.all { variant ->
                project.tasks."dataBindingProcessLayouts${capitalizeFirstLetter(variant.flavorName)}${capitalizeFirstLetter(variant.buildType.name)}".doLast {
                    task.execute()
                }
            }
        }
    }

    def capitalizeFirstLetter(String input) {
        return input.substring(0, 1).toUpperCase() + input.substring(1)
    }
}

class DefaultAttributes extends DefaultTask {

    DefaultAttributes() {
        group = 'pluginBasics'
    }

    @TaskAction
    def check() {
        description = 'Updates ReadMe file with the latest version'

        project.android.applicationVariants.all { variant ->
            File folder = new File("${project.projectDir}/src/main/res/layout")
            println folder.isDirectory()
            File[] listOfFiles = folder.listFiles();

            for (int i = 0; i < listOfFiles.length; i++) {
                println "found layout " + listOfFiles[i].getName()
                def filePath = "${project.buildDir}/intermediates/data-binding-layout-out/${variant.flavorName}/${variant.buildType.name}/layout/${listOfFiles[i].getName()}"
                File file = new File(filePath)

                if (file.exists()) {
                    DocumentBuilderFactory docFactory = DocumentBuilderFactory.newInstance()
                    DocumentBuilder docBuilder = docFactory.newDocumentBuilder()
                    Document doc = docBuilder.parse(filePath)

                    checkAttributes(doc.childNodes)

                    saveChanges(doc, filePath)
                }
            }
        }
    }

    def saveChanges(Document doc, String filePath) {
        TransformerFactory transformerFactory = TransformerFactory.newInstance();
        def transformer = transformerFactory.newTransformer();
        DOMSource source = new DOMSource(doc);
        StreamResult result = new StreamResult(new File(filePath));
        transformer.transform(source, result);
    }

    def checkAttributes(NodeList nodes) {
        for (def i = 0; i < nodes.length; i++) {
            def node = nodes.item(i)
            println node.nodeName
            if (node.nodeName != "#text") {
                if (!node.hasAttribute("android:layout_height")) {
                    node.setAttribute("android:layout_height", "wrap_content")
                }
                if (!node.hasAttribute("android:layout_width")) {
                    node.setAttribute("android:layout_width", "wrap_content")
                }
            }
            if (node.childNodes != null && node.childNodes.length > 0) {
                checkAttributes(node.childNodes)
            }
        }
    }
}