code optimization

app/build.gradle

@@ -30,24 +30,21 @@ android {
 
 dependencies {
     //butter knife
-    implementation 'com.jakewharton:butterknife:10.2.3'
-    annotationProcessor 'com.jakewharton:butterknife-compiler:10.2.3'
-
+    implementation libs.butterknife
+    annotationProcessor libs.butterknife.compiler
     //Networking
-    implementation 'com.squareup.retrofit2:retrofit:2.9.0'
-    implementation 'com.squareup.retrofit2:converter-gson:2.9.0'
-    implementation 'com.squareup.okhttp3:okhttp:3.10.0'
-    implementation 'com.squareup.okhttp3:logging-interceptor:3.10.0'
-    implementation 'com.google.code.gson:gson:2.9.0'
-
+    implementation libs.retrofit
+    implementation libs.converter.gson
+    implementation libs.okhttp
+    implementation libs.logging.interceptor
+    implementation libs.gson
     //The mpesa Library
     implementation project(':mpesa')
     // library dependency
-
-    implementation 'androidx.appcompat:appcompat:1.5.0'
-    implementation 'com.google.android.material:material:1.6.1'
-    implementation 'androidx.constraintlayout:constraintlayout:2.1.4'
-    testImplementation 'junit:junit:4.13.2'
-    androidTestImplementation 'androidx.test.ext:junit:1.1.3'
-    androidTestImplementation 'androidx.test.espresso:espresso-core:3.4.0'
+    implementation libs.appcompat
+    implementation libs.material
+    implementation libs.constraintlayout
+    testImplementation libs.junit
+    androidTestImplementation libs.ext.junit
+    androidTestImplementation libs.espresso.core
 }

gradle/libs.versions.toml

@@ -1,5 +1,28 @@
 [versions]
+appcompat = "1.7.0"
+butterknife = "10.2.3"
+constraintlayout = "2.1.4"
+espressoCore = "3.6.1"
+gson = "2.10.1"
+junit = "4.13.2"
+junitVersion = "1.2.1"
+material = "1.12.0"
+okhttp = "4.12.0"
+retrofit = "2.10.0"
 
 [libraries]
+appcompat = { module = "androidx.appcompat:appcompat", version.ref = "appcompat" }
+butterknife = { module = "com.jakewharton:butterknife", version.ref = "butterknife" }
+butterknife-compiler = { module = "com.jakewharton:butterknife-compiler", version.ref = "butterknife" }
+constraintlayout = { module = "androidx.constraintlayout:constraintlayout", version.ref = "constraintlayout" }
+converter-gson = { module = "com.squareup.retrofit2:converter-gson", version.ref = "retrofit" }
+espresso-core = { module = "androidx.test.espresso:espresso-core", version.ref = "espressoCore" }
+ext-junit = { module = "androidx.test.ext:junit", version.ref = "junitVersion" }
+gson = { module = "com.google.code.gson:gson", version.ref = "gson" }
+junit = { module = "junit:junit", version.ref = "junit" }
+logging-interceptor = { module = "com.squareup.okhttp3:logging-interceptor", version.ref = "okhttp" }
+material = { module = "com.google.android.material:material", version.ref = "material" }
+okhttp = { module = "com.squareup.okhttp3:okhttp", version.ref = "okhttp" }
+retrofit = { module = "com.squareup.retrofit2:retrofit", version.ref = "retrofit" }
 
 [plugins]