chore(example): update example.

Author: jaywcjlove

example/.buckconfig

@@ -1,4 +1,7 @@
 module.exports = {
   root: true,
   extends: '@react-native-community',
+  parserOptions: {
+    requireConfigFile: false,
+  },
 };

example/.eslintrc.js

@@ -20,6 +20,7 @@ DerivedData
 *.hmap
 *.ipa
 *.xcuserstate
+ios/.xcode.env.local
 
 # Android/IntelliJ
 #
@@ -28,32 +29,35 @@ build/
 .gradle
 local.properties
 *.iml
+*.hprof
+.cxx/
+*.keystore
+!debug.keystore
 
 # node.js
 #
 node_modules/
 npm-debug.log
 yarn-error.log
 
-# BUCK
-buck-out/
-\.buckd/
-*.keystore
-!debug.keystore
-
 # fastlane
 #
 # It is recommended to not store the screenshots in the git repo. Instead, use fastlane to re-generate the
 # screenshots whenever they are needed.
 # For more information about the recommended setup visit:
 # https://docs.fastlane.tools/best-practices/source-control/
 
-*/fastlane/report.xml
-*/fastlane/Preview.html
-*/fastlane/screenshots
+**/fastlane/report.xml
+**/fastlane/Preview.html
+**/fastlane/screenshots
+**/fastlane/test_output
 
 # Bundle artifact
 *.jsbundle
 
-# CocoaPods
+# Ruby / CocoaPods
 /ios/Pods/
+/vendor/bundle/
+
+# Temporary files created by Metro to check the health of the file watcher
+.metro-health-check*

example/.flowconfig

@@ -0,0 +1 @@
+18

example/.gitattributes

@@ -1,6 +1,7 @@
 module.exports = {
+  arrowParens: 'avoid',
+  bracketSameLine: true,
   bracketSpacing: false,
-  jsxBracketSameLine: true,
   singleQuote: true,
   trailingComma: 'all',
 };

example/.gitignore

@@ -0,0 +1 @@
+2.7.6