Fix example Podfiles, and document better

examples/objective-c/auth_sample/Podfile

@@ -1,9 +1,10 @@
 source 'https://github.com/CocoaPods/Specs.git'
 platform :ios, '8.0'
 
-pod 'Protobuf', :path => "../../../third_party/protobuf"
+install! 'cocoapods', :deterministic_uuids => false
-pod 'BoringSSL', :podspec => "../../../src/objective-c"
+
-pod 'gRPC', :path => "../../.."
+# Location of gRPC's repo root relative to this file.
+GRPC_LOCAL_SRC = '../../..'
 
 target 'AuthSample' do
   # Depend on the generated AuthTestService library.
@@ -11,4 +12,15 @@ target 'AuthSample' do
 
   # Depend on Google's OAuth2 library
   pod 'Google/SignIn'
+
+  # Use the local versions of Protobuf, BoringSSL, and gRPC. You don't need any of the following
+  # lines in your application.
+  pod 'Protobuf', :path => "#{GRPC_LOCAL_SRC}/third_party/protobuf"
+
+  pod 'BoringSSL', :podspec => "#{GRPC_LOCAL_SRC}/src/objective-c"
+
+  pod 'gRPC', :path => GRPC_LOCAL_SRC
+  pod 'gRPC-Core', :path => GRPC_LOCAL_SRC
+  pod 'gRPC-RxLibrary', :path => GRPC_LOCAL_SRC
+  pod 'gRPC-ProtoRPC',  :path => GRPC_LOCAL_SRC
 end

examples/objective-c/helloworld/Podfile

@@ -1,11 +1,23 @@
 source 'https://github.com/CocoaPods/Specs.git'
 platform :ios, '8.0'
 
-pod 'Protobuf', :path => "../../../third_party/protobuf"
+install! 'cocoapods', :deterministic_uuids => false
-pod 'BoringSSL', :podspec => "../../../src/objective-c"
+
-pod 'gRPC', :path => "../../.."
+# Location of gRPC's repo root relative to this file.
+GRPC_LOCAL_SRC = '../../..'
 
 target 'HelloWorld' do
   # Depend on the generated HelloWorld library.
   pod 'HelloWorld', :path => '.'
+
+  # Use the local versions of Protobuf, BoringSSL, and gRPC. You don't need any of the following
+  # lines in your application.
+  pod 'Protobuf', :path => "#{GRPC_LOCAL_SRC}/third_party/protobuf"
+
+  pod 'BoringSSL', :podspec => "#{GRPC_LOCAL_SRC}/src/objective-c"
+
+  pod 'gRPC', :path => GRPC_LOCAL_SRC
+  pod 'gRPC-Core', :path => GRPC_LOCAL_SRC
+  pod 'gRPC-RxLibrary', :path => GRPC_LOCAL_SRC
+  pod 'gRPC-ProtoRPC',  :path => GRPC_LOCAL_SRC
 end

examples/objective-c/route_guide/Podfile

@@ -1,10 +1,23 @@
 source 'https://github.com/CocoaPods/Specs.git'
 platform :ios, '8.0'
 
+install! 'cocoapods', :deterministic_uuids => false
+
+# Location of gRPC's repo root relative to this file.
+GRPC_LOCAL_SRC = '../../..'
+
 target 'RouteGuideClient' do
-  pod 'Protobuf', :path => "../../../third_party/protobuf"
-  pod 'BoringSSL', :podspec => "../../../src/objective-c"
-  pod 'gRPC', :path => "../../.."
   # Depend on the generated RouteGuide library.
   pod 'RouteGuide', :path => '.'
+
+  # Use the local versions of Protobuf, BoringSSL, and gRPC. You don't need any of the following
+  # lines in your application.
+  pod 'Protobuf', :path => "#{GRPC_LOCAL_SRC}/third_party/protobuf"
+
+  pod 'BoringSSL', :podspec => "#{GRPC_LOCAL_SRC}/src/objective-c"
+
+  pod 'gRPC', :path => GRPC_LOCAL_SRC
+  pod 'gRPC-Core', :path => GRPC_LOCAL_SRC
+  pod 'gRPC-RxLibrary', :path => GRPC_LOCAL_SRC
+  pod 'gRPC-ProtoRPC',  :path => GRPC_LOCAL_SRC
 end

src/objective-c/examples/Sample/Podfile

@@ -7,6 +7,11 @@ install! 'cocoapods', :deterministic_uuids => false
 GRPC_LOCAL_SRC = '../../../..'
 
 target 'Sample' do
+  # Depend on the generated RemoteTestClient library
+  pod 'RemoteTest', :path => "../RemoteTestClient"
+
+  # Use the local versions of Protobuf, BoringSSL, and gRPC. You don't need any of the following
+  # lines in your application.
   pod 'Protobuf', :path => "#{GRPC_LOCAL_SRC}/third_party/protobuf"
 
   pod 'BoringSSL', :podspec => "#{GRPC_LOCAL_SRC}/src/objective-c"
@@ -15,6 +20,4 @@ target 'Sample' do
   pod 'gRPC-Core', :path => GRPC_LOCAL_SRC
   pod 'gRPC-RxLibrary', :path => GRPC_LOCAL_SRC
   pod 'gRPC-ProtoRPC',  :path => GRPC_LOCAL_SRC
-
-  pod 'RemoteTest', :path => "../RemoteTestClient"
 end

src/objective-c/examples/SwiftSample/Podfile

@@ -7,6 +7,11 @@ install! 'cocoapods', :deterministic_uuids => false
 GRPC_LOCAL_SRC = '../../../..'
 
 target 'SwiftSample' do
+  # Depend on the generated RemoteTestClient library
+  pod 'RemoteTest', :path => "../RemoteTestClient"
+
+  # Use the local versions of Protobuf, BoringSSL, and gRPC. You don't need any of the following
+  # lines in your application.
   pod 'Protobuf', :path => "#{GRPC_LOCAL_SRC}/third_party/protobuf"
 
   pod 'BoringSSL', :podspec => "#{GRPC_LOCAL_SRC}/src/objective-c"
@@ -15,6 +20,4 @@ target 'SwiftSample' do
   pod 'gRPC-Core', :path => GRPC_LOCAL_SRC
   pod 'gRPC-RxLibrary', :path => GRPC_LOCAL_SRC
   pod 'gRPC-ProtoRPC',  :path => GRPC_LOCAL_SRC
-
-  pod 'RemoteTest', :path => "../RemoteTestClient"
 end