Fix for MagiskSU

app/build.gradle

@@ -2,17 +2,13 @@ apply plugin: 'com.android.application'
 apply plugin: 'kotlin-android'
 
 android {
-    compileSdkVersion 25
-    buildToolsVersion "25.0.2"
+    compileSdkVersion 28
     defaultConfig {
         applicationId "ua.rostopira.headsswitch"
         minSdkVersion 24
-        targetSdkVersion 25
-        versionCode 1
-        versionName "1.0"
-        jackOptions {
-            enabled true
-        }
+        targetSdkVersion 27
+        versionCode 2
+        versionName "2.0"
     }
     buildTypes {
         release {
@@ -27,7 +23,7 @@ android {
 }
 
 dependencies {
-    compile "org.jetbrains.kotlin:kotlin-stdlib-jre8:$kotlin_version"
+    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk8:$kotlin_version"
 }
 repositories {
     mavenCentral()

app/src/main/java/ua/rostopira/headsswitch/TileService.kt

@@ -29,8 +29,10 @@ class HeadsUpSwitcher: TileService() {
         isEnabled = !isEnabled
     }
 
-    private fun getPermission() =
+    private fun getPermission() {
         Runtime.getRuntime().exec("""su -c 'pm grant ${BuildConfig.APPLICATION_ID} $WRITE_SECURE_SETTINGS'""")
+        Runtime.getRuntime().exec("""su -c pm grant ${BuildConfig.APPLICATION_ID} $WRITE_SECURE_SETTINGS""")
+    }
 
     private fun setTileState(state: Boolean = isEnabled) {
         if (state) {

build.gradle

@@ -1,19 +1,21 @@
 // Top-level build file where you can add configuration options common to all sub-projects/modules.
 
 buildscript {
-    ext.kotlin_version = '1.1.0'
+    ext.kotlin_version = '1.2.51'
     repositories {
         jcenter()
+        google()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:2.3.0'
+        classpath 'com.android.tools.build:gradle:3.1.3'
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
     }
 }
 
 allprojects {
     repositories {
         jcenter()
+        google()
     }
 }