saurabharora90

apply plugin: 'java-library'
apply plugin: 'kotlin'

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])
    compileOnly "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"

    compileOnly 'com.android.tools.lint:lint-api:26.4.1'
    compileOnly 'com.android.tools.lint:lint-checks:26.4.1'
}

saurabharora90

object DirectColorUseIssue {
    private const val ID = "DirectColorUse"
    private const val DESCRIPTION = "Color used directly"
    const val EXPLANATION =
        '''Avoid direct use of colors in XML files. 
        This will cause issues with different theme (dark-theme?) support'''
    private val CATEGORY = Category.CORRECTNESS
    private const val PRIORITY = 6
    private val SEVERITY = Severity.WARNING

saurabharora90

private const val BACKGROUND = "background"
private const val FOREGROUND = "foreground"
private const val SRC = "src"
private const val TEXT_COLOR = "textColor"
private const val TINT = "tint"

//Vector Drawables.
private const val FILL_COLOR = "fillColor"
private const val STROKE_COLOR = "strokeColor"
private const val COLOR = "color"

saurabharora90

class DarkThemeLintRegistry : IssueRegistry() {

    override val issues: List<Issue>
        get() = listOf(DirectColorUseIssue.ISSUE)
}

saurabharora90

object MissingNightColorIssue {
    private const val ID = "MissingNightColor"
    private const val DESCRIPTION = "Night Color missing"
    const val EXPLANATION =
        '''Night color value for this color resource seems to be missing. 
        If your app supports dark theme, then you should add an equivalent color resource for it in the night values folder.'''
    private val CATEGORY = Category.CORRECTNESS
    private const val PRIORITY = 6
    private val SEVERITY = Severity.WARNING

saurabharora90

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <color name="colorPrimary">#008577</color>
    <color name="colorPrimaryDark">#00574B</color>
    <color name="colorAccent">#D81B60</color>
</resources>

saurabharora90

private const val COLOR = "color"

class MissingNightColorDetector : ResourceXmlDetector() {

    private val nightModeColors = mutableListOf<String>()
    private val regularColors = mutableMapOf<String, Location>()

    override fun appliesTo(folderType: ResourceFolderType): Boolean {
        return folderType == ResourceFolderType.VALUES
    }

saurabharora90

class DarkThemeLintRegistry : IssueRegistry() {

    override val issues: List<Issue>
        get() = listOf(
            DirectColorUseIssue.ISSUE,
            MissingNightColorIssue.ISSUE
        )
}

saurabharora90

<?xml version="1.0" encoding="UTF-8"?>

<!DOCTYPE module PUBLIC
    "-//Checkstyle//DTD Checkstyle Configuration 1.3//EN"
    "https://checkstyle.org/dtds/configuration_1_3.dtd">

<module name="Checker">
    <property name="severity" value="warning" />
    <property name="charset" value="UTF-8" />
    <module name="FileTabCharacter">

saurabharora90

interface ModuleInitializer {

    /** Initializes a module given the application Context
     *
     * @return A Completable if the module needs the app to wait for its setup to complete before proceeding.
     * If the module setup doesn't need an asynchronous setup, then it can simply return Completable.complete()
     */
    fun initialize(context: Context): Completable
}