Create `UnderNotificationBannerBehavior` class

1 files changed, 34 insertions, 0 deletions

diff --git a/android/src/main/kotlin/net/mullvad/mullvadvpn/ui/UnderNotificationBannerBehavior.kt b/android/src/main/kotlin/net/mullvad/mullvadvpn/ui/UnderNotificationBannerBehavior.kt
new file mode 100644
index 0000000000..a0759ed9fa
--- /dev/null
+++ b/android/src/main/kotlin/net/mullvad/mullvadvpn/ui/UnderNotificationBannerBehavior.kt
@@ -0,0 +1,34 @@
+package net.mullvad.mullvadvpn.ui
+
+import android.content.Context
+import android.support.design.widget.CoordinatorLayout
+import android.support.design.widget.CoordinatorLayout.Behavior
+import android.util.AttributeSet
+import android.view.View
+import android.widget.ScrollView
+import net.mullvad.mullvadvpn.R
+
+class UnderNotificationBannerBehavior(
+    context: Context,
+    attributes: AttributeSet
+) : Behavior<ScrollView>(context, attributes) {
+    override fun layoutDependsOn(parent: CoordinatorLayout, body: ScrollView, dependency: View) =
+        dependency.id == R.id.notification_banner
+
+    override fun onDependentViewChanged(
+        parent: CoordinatorLayout,
+        body: ScrollView,
+        dependency: View
+    ): Boolean {
+        val newPaddingTop = dependency.height
+
+        body.getChildAt(0).apply {
+            if (paddingTop != newPaddingTop) {
+                setPadding(paddingLeft, newPaddingTop, paddingRight, paddingBottom)
+                return true
+            } else {
+                return false
+            }
+        }
+    }
+}