Update example project

Author: cbrevik

example/android/app/build.gradle

@@ -115,10 +115,22 @@ android {
             include "armeabi-v7a", "x86"
         }
     }
+    signingConfigs {
+        release {
+            if (project.hasProperty('MYAPP_RELEASE_STORE_FILE')) {
+                storeFile file(MYAPP_RELEASE_STORE_FILE)
+                storePassword MYAPP_RELEASE_STORE_PASSWORD
+                keyAlias MYAPP_RELEASE_KEY_ALIAS
+                keyPassword MYAPP_RELEASE_KEY_PASSWORD
+            }
+        }
+    }
     buildTypes {
         release {
+            debuggable true
             minifyEnabled enableProguardInReleaseBuilds
             proguardFiles getDefaultProguardFile("proguard-android.txt"), "proguard-rules.pro"
+            signingConfig signingConfigs.release
         }
     }
     // applicationVariants are e.g. debug, release

example/android/gradle.properties

@@ -18,3 +18,7 @@
 # org.gradle.parallel=true
 
 android.useDeprecatedNdk=true
+MYAPP_RELEASE_STORE_FILE=my-release-key.keystore
+MYAPP_RELEASE_KEY_ALIAS=my-key-alias
+MYAPP_RELEASE_STORE_PASSWORD=test1234
+MYAPP_RELEASE_KEY_PASSWORD=test1234