Implement colorPickerDialog extension for creating ColorPickerDialog

Author: skydoves

colorpickerview/src/main/java/com/skydoves/colorpickerview/kotlin/ColorPickerDialogExtension.kt

@@ -0,0 +1,34 @@
+/*
+ * Designed and developed by 2017 skydoves (Jaewoong Eum)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.skydoves.colorpickerview.kotlin
+
+import android.content.Context
+import com.skydoves.colorpickerview.ColorPickerDialog
+
+@DslMarker
+internal annotation class ColorPickerDsl
+
+/**
+ * Creates a lambda scope for implementing [ColorPickerDialog] using its [ColorPickerDialog.Builder].
+ *
+ * @param block lambda scope for receiving [ColorPickerDialog.Builder].
+ * @return new instance of [ColorPickerDialog].
+ */
+@ColorPickerDsl
+@JvmSynthetic
+fun Context.colorPickerDialog(block: ColorPickerDialog.Builder.() -> Unit) =
+  ColorPickerDialog.Builder(this).apply(block)

spotless.gradle

@@ -22,4 +22,11 @@ spotless {
     googleJavaFormat()
     endWithNewline()
   }
+  kotlin {
+    target "**/*.kt"
+    ktlint("$versions.ktlintGradle").userData(['indent_size': '2', 'continuation_indent_size': '2'])
+    licenseHeaderFile "$rootDir/spotless.license.java"
+    trimTrailingWhitespace()
+    endWithNewline()
+  }
 }