ui: cleanup various pieces of kotlin

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>

ui/src/main/java/com/wireguard/android/activity/BaseActivity.kt

@@ -23,6 +23,7 @@ abstract class BaseActivity : ThemeChangeAwareActivity() {
             onSelectedTunnelChanged(oldTunnel, value)
             selectionChangeRegistry.notifyCallbacks(oldTunnel, 0, value)
         }
+
     fun addOnSelectedTunnelChangedListener(listener: OnSelectedTunnelChangedListener) {
         selectionChangeRegistry.add(listener)
     }

ui/src/main/java/com/wireguard/android/fragment/ConfigNamingDialogFragment.kt

@@ -49,8 +49,8 @@ class ConfigNamingDialogFragment : DialogFragment() {
         val configBytes = configText!!.toByteArray(StandardCharsets.UTF_8)
         config = try {
             Config.parse(ByteArrayInputStream(configBytes))
-        } catch(e: Exception) {
+        } catch (e: Exception) {
-            when(e) {
+            when (e) {
                 is BadConfigException, is IOException -> throw IllegalArgumentException("Invalid config passed to ${javaClass.simpleName}", e)
                 else -> throw e
             }

ui/src/main/java/com/wireguard/android/fragment/TunnelEditorFragment.kt

@@ -22,10 +22,10 @@ import com.wireguard.android.backend.Tunnel
 import com.wireguard.android.databinding.TunnelEditorFragmentBinding
 import com.wireguard.android.fragment.AppListDialogFragment.AppExclusionListener
 import com.wireguard.android.model.ObservableTunnel
-import com.wireguard.android.widget.EdgeToEdge.setUpRoot
-import com.wireguard.android.widget.EdgeToEdge.setUpScrollingContent
 import com.wireguard.android.util.ErrorMessages
 import com.wireguard.android.viewmodel.ConfigProxy
+import com.wireguard.android.widget.EdgeToEdge.setUpRoot
+import com.wireguard.android.widget.EdgeToEdge.setUpScrollingContent
 import com.wireguard.config.Config
 
 /**

ui/src/main/java/com/wireguard/android/fragment/TunnelListFragment.kt

@@ -28,10 +28,10 @@ import com.wireguard.android.databinding.TunnelListFragmentBinding
 import com.wireguard.android.databinding.TunnelListItemBinding
 import com.wireguard.android.fragment.ConfigNamingDialogFragment.Companion.newInstance
 import com.wireguard.android.model.ObservableTunnel
+import com.wireguard.android.util.ErrorMessages
 import com.wireguard.android.widget.EdgeToEdge.setUpFAB
 import com.wireguard.android.widget.EdgeToEdge.setUpRoot
 import com.wireguard.android.widget.EdgeToEdge.setUpScrollingContent
-import com.wireguard.android.util.ErrorMessages
 import com.wireguard.android.widget.MultiselectableRelativeLayout
 import com.wireguard.config.Config
 import java9.util.concurrent.CompletableFuture

ui/src/main/java/com/wireguard/android/model/ApplicationData.kt

@@ -10,7 +10,7 @@ import androidx.databinding.Bindable
 import com.wireguard.android.BR
 import com.wireguard.util.Keyed
 
-class ApplicationData(val icon: Drawable, val name: String, val packageName: String, isExcludedFromTunnel : Boolean) : BaseObservable(), Keyed<String> {
+class ApplicationData(val icon: Drawable, val name: String, val packageName: String, isExcludedFromTunnel: Boolean) : BaseObservable(), Keyed<String> {
     override fun getKey(): String {
         return name
     }

ui/src/main/java/com/wireguard/android/widget/EdgeToEdge.kt

@@ -6,7 +6,12 @@ package com.wireguard.android.widget
 
 import android.view.View
 import android.view.ViewGroup
-import androidx.core.view.*
+import androidx.core.view.marginBottom
+import androidx.core.view.marginLeft
+import androidx.core.view.marginRight
+import androidx.core.view.marginTop
+import androidx.core.view.updateLayoutParams
+import androidx.core.view.updatePadding
 import com.google.android.material.floatingactionbutton.ExtendedFloatingActionButton
 
 /**

ui/src/main/java/com/wireguard/android/widget/SlashDrawable.kt

@@ -6,13 +6,11 @@
 package com.wireguard.android.widget
 
 import android.animation.ObjectAnimator
-import android.animation.ValueAnimator
 import android.content.res.ColorStateList
 import android.graphics.*
 import android.graphics.drawable.Drawable
 import android.os.Build
 import android.util.FloatProperty
-import android.util.Property
 import androidx.annotation.ColorInt
 import androidx.annotation.IntRange
 import androidx.annotation.RequiresApi
@@ -23,6 +21,7 @@ class SlashDrawable(private val mDrawable: Drawable) : Drawable() {
     private val mPath = Path()
     private val mSlashRect = RectF()
     private var mAnimationEnabled = true
+
     // Animate this value on change
     private var mCurrentSlashLength = 0f
     private var mRotation = 0f