Fix openMF#100 Migrate app dependencies to androidX

visionppi/app/build.gradle

@@ -15,7 +15,7 @@ android {
         targetSdkVersion 28
         versionCode 1
         versionName "1.0"
-        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
+        testInstrumentationRunner 'androidx.test.runner.AndroidJUnitRunner'
     }
     buildTypes {
         release {
@@ -40,18 +40,18 @@ dependencies {
 
     implementation fileTree(dir: 'libs', include: ['*.jar'])
     implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
-    implementation 'com.android.support:appcompat-v7:28.0.0'
-    implementation 'com.android.support.constraint:constraint-layout:1.1.3'
+    implementation 'androidx.appcompat:appcompat:1.0.0'
+    implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
     implementation 'androidx.appcompat:appcompat:1.0.0-beta01'
     implementation 'androidx.legacy:legacy-support-v4:1.0.0-beta01'
     testImplementation 'junit:junit:4.12'
-    androidTestImplementation 'com.android.support.test:runner:1.0.2'
-    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
+    androidTestImplementation 'androidx.test.ext:junit:1.1.1'
+    androidTestImplementation 'androidx.test.espresso:espresso-core:3.1.0'
     implementation "androidx.lifecycle:lifecycle-extensions:$lifecycle_version"
     implementation "androidx.lifecycle:lifecycle-viewmodel-ktx:$lifecycle_version"
     implementation 'com.google.android.material:material:1.0.0-alpha1'
-    implementation 'com.android.support.constraint:constraint-layout:1.0.2'
-    implementation 'com.android.support:multidex:1.0.3'
+    implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
+    implementation 'androidx.multidex:multidex:2.0.0'
     implementation "androidx.constraintlayout:constraintlayout:1.1.3"
     implementation 'khttp:khttp:0.1.0'
     implementation 'com.google.code.gson:gson:2.8.5'