Add Add-to-app update instructions to README

add_to_app/README.md

@@ -62,3 +62,21 @@ iOS or Android app, the best places to go are:
 
 If you run into an issue with the sample itself, please file an issue
 in the [main Flutter repo](https://github.com/flutter/flutter/issues).
+
+## Updating Android samples and its dependencies
+
+TODO @ewindmill: Expand these instructions for those of us with little Android experience :)
+
+* Open the top level build.gradle file in android studio
+* Open “Upgrade Assistant” and click upgrade
+* If after upgrading it fails to build try upgrading to a slightly less new version
+* If you get an unknown class version exception 61, 66, etc, try setting the version of Java used by modifying JAVA_HOME
+* If it still fails to build try checking if the Flutter code referenced in the build is up-to-date and doesn't use discontinued plugins. (Common cases include “namespace”)
+* The 'project structure' -> 'modules' view can be helpful in understanding the dependency tree.
+* Once the app builds with the latest gradle/agp update any deprecated usages in app/build.gradle
+
+* compileSdkVersion -> sdkVersion
+* Update the target sdk version and read through each target sdk update
+* Export broadcast receivers
+* Update the way flutter is imported to use flutter gradle plugin
+* https://flutter.dev/go/flutter-gradle-plugin-apply

compass_app/macos/Flutter/ephemeral/Flutter-Generated.xcconfig

@@ -0,0 +1,11 @@
+// This is a generated file; do not edit or check into version control.
+FLUTTER_ROOT=/Users/ewindmill/development/flutter
+FLUTTER_APPLICATION_PATH=/Users/ewindmill/development/samples/compass_app
+COCOAPODS_PARALLEL_CODE_SIGN=true
+FLUTTER_BUILD_DIR=build
+FLUTTER_BUILD_NAME=0.1.0
+FLUTTER_BUILD_NUMBER=0.1.0
+DART_OBFUSCATION=false
+TRACK_WIDGET_CREATION=true
+TREE_SHAKE_ICONS=false
+PACKAGE_CONFIG=.dart_tool/package_config.json

compass_app/macos/Flutter/ephemeral/flutter_export_environment.sh

@@ -0,0 +1,12 @@
+#!/bin/sh
+# This is a generated file; do not edit or check into version control.
+export "FLUTTER_ROOT=/Users/ewindmill/development/flutter"
+export "FLUTTER_APPLICATION_PATH=/Users/ewindmill/development/samples/compass_app"
+export "COCOAPODS_PARALLEL_CODE_SIGN=true"
+export "FLUTTER_BUILD_DIR=build"
+export "FLUTTER_BUILD_NAME=0.1.0"
+export "FLUTTER_BUILD_NUMBER=0.1.0"
+export "DART_OBFUSCATION=false"
+export "TRACK_WIDGET_CREATION=true"
+export "TREE_SHAKE_ICONS=false"
+export "PACKAGE_CONFIG=.dart_tool/package_config.json"