Add support for Expo SDK 50 / RN 0.73 (#2)

- switch to gitignored ios/android folder for example app
- update example app to Expo SDK 50
- fix android build on RN 0.73

Author: Matthieu Gicquel

android/build.gradle

@@ -51,21 +51,24 @@ afterEvaluate {
 }
 
 android {
-  compileSdkVersion safeExtGet("compileSdkVersion", 33)
+  compileSdkVersion safeExtGet("compileSdkVersion", 34)
 
-  compileOptions {
-    sourceCompatibility JavaVersion.VERSION_11
-    targetCompatibility JavaVersion.VERSION_11
-  }
+  def agpVersion = com.android.Version.ANDROID_GRADLE_PLUGIN_VERSION
+  if (agpVersion.tokenize('.')[0].toInteger() < 8) {
+    compileOptions {
+      sourceCompatibility JavaVersion.VERSION_11
+      targetCompatibility JavaVersion.VERSION_11
+    }
 
-  kotlinOptions {
-    jvmTarget = JavaVersion.VERSION_11.majorVersion
+    kotlinOptions {
+      jvmTarget = JavaVersion.VERSION_11.majorVersion
+    }
   }
 
   namespace "tech.bam.rnas"
   defaultConfig {
     minSdkVersion safeExtGet("minSdkVersion", 21)
-    targetSdkVersion safeExtGet("targetSdkVersion", 33)
+    targetSdkVersion safeExtGet("targetSdkVersion", 34)
     versionCode 1
     versionName "0.1.0"
 

example/.gitignore

@@ -33,3 +33,7 @@ yarn-error.*
 
 # typescript
 *.tsbuildinfo
+
+# Expo managed workflow
+/ios
+/android