First professional project I took on as an android developer. The use of paypal library, firebase backend server, internal SQLite database and google maps library.

app/build.gradle

@@ -0,0 +1,40 @@
+apply plugin: 'com.android.application'
+
+android {
+    compileSdkVersion 27
+    defaultConfig {
+        applicationId "com.example.h_mal.mochee"
+        minSdkVersion 26
+        targetSdkVersion 27
+        versionCode 1
+        versionName "1.0"
+        multiDexEnabled true
+        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
+    }
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
+        }
+    }
+}
+
+dependencies {
+    implementation fileTree(include: ['*.jar'], dir: 'libs')
+    implementation 'com.google.firebase:firebase-database:11.8.0'
+    implementation 'com.squareup.picasso:picasso:2.5.2'
+    androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
+        exclude group: 'com.android.support', module: 'support-annotations'
+    })
+    implementation 'com.android.support:appcompat-v7:27.0.2'
+    implementation 'com.android.support:design:27.0.2'
+    implementation 'com.android.support.constraint:constraint-layout:1.0.2'
+    implementation 'com.google.android.gms:play-services-maps:11.8.0'
+    implementation 'com.paypal.sdk:paypal-android-sdk:2.15.3'
+    implementation 'com.android.support:support-v4:27.0.2'
+    testCompile 'junit:junit:4.12'
+}
+
+
+
+apply plugin: 'com.google.gms.google-services'