Updated build system to use compileSdkVersion 28.

love/build.gradle

@@ -6,11 +6,11 @@ android {
     // See https://code.google.com/p/android/issues/detail?id=52962
     // and http://stackoverflow.com/questions/27277433/why-does-gradle-build-my-module-in-release-mode-when-the-app-is-in-debug
     // defaultPublishConfig "debug"
-    compileSdkVersion 26
+    compileSdkVersion 28
     buildToolsVersion '28.0.3'
 
     defaultConfig {
-        compileSdkVersion 26
+        compileSdkVersion 28
         buildToolsVersion "28.0.3"
         minSdkVersion 14
         externalNativeBuild {
@@ -49,7 +49,7 @@ android {
 
 dependencies {
     api fileTree(dir: 'libs', include: ['*.jar'])
-    api 'com.android.support:appcompat-v7:26.1.0'
+    api 'androidx.appcompat:appcompat:1.1.0-alpha01'
 }
 
 repositories {