Add ViewGroup extension function

* Visibility

Author: enginebai

base/src/main/java/com/enginebai/base/extensions/ViewGroupExt.kt

@@ -0,0 +1,37 @@
+package com.enginebai.base.extensions
+
+import android.view.View
+import android.view.ViewGroup
+
+fun ViewGroup.setVisible(visible: Boolean) {
+	visibility = if (visible) View.VISIBLE else View.INVISIBLE
+}
+
+fun ViewGroup.setExistence(exist: Boolean) {
+	visibility = if (exist) View.VISIBLE else View.GONE
+}
+
+fun ViewGroup.gone() {
+	setExistence(false)
+}
+
+fun ViewGroup.invisible() {
+	setVisible(false)
+}
+
+fun ViewGroup.visible() {
+	visibility = View.VISIBLE
+}
+
+fun ViewGroup.toggleVisible() {
+	visibility = if (visibility == View.VISIBLE) View.INVISIBLE else View.VISIBLE
+}
+
+fun ViewGroup.toggleExistence() {
+	visibility = if (visibility == View.VISIBLE) View.GONE else View.VISIBLE
+}
+
+val ViewGroup.isGone: Boolean get() = (visibility == View.GONE)
+val ViewGroup.isInvisible: Boolean get() = (visibility == View.INVISIBLE)
+val ViewGroup.isVisible: Boolean get() = (visibility == View.VISIBLE)
+