Remove FIRAppEnvironmentUtil's sharedApplication (#603)

* Deprecate FIRAppEnvironmentUtil sharedApplication

* Remove sharedApplication private API.

This also allows us to remove an AppKit dependency.

* Disable autolink when building FirebaseCore (#606)

This prevents the dependencies of FirebaseCore's dependencies from
bleeding into its interface.

The proximate benefit of avoiding this is that FirebaseCore no longer
ends up depending on ColorSync.framework which became a top-level system
framework in 10.13. This makes it possible to build against the
resulting FirebaseCore.framework on macOS 10.12 using Xcode 9 (with the
macOS 10.13 SDK).

1 files changed, 3 insertions, 19 deletions

diff --git a/Firebase/Core/third_party/FIRAppEnvironmentUtil.m b/Firebase/Core/third_party/FIRAppEnvironmentUtil.m
index fe4e23d..859c04e 100644
--- a/Firebase/Core/third_party/FIRAppEnvironmentUtil.m
+++ b/Firebase/Core/third_party/FIRAppEnvironmentUtil.m
@@ -13,6 +13,9 @@
 // limitations under the License.
 
 #import <Foundation/Foundation.h>
+#if TARGET_OS_IOS || TARGET_OS_TV
+#import <UIKit/UIKit.h>
+#endif
 
 #import "FIRAppEnvironmentUtil.h"
 
@@ -221,25 +224,6 @@ static BOOL isAppEncrypted() {
   #endif
 }
 
-#if TARGET_OS_IOS
-+ (UIApplication *)sharedApplication {
-  if ([FIRAppEnvironmentUtil isAppExtension]) {
-    return nil;
-  }
-  id sharedApplication = nil;
-  Class uiApplicationClass = NSClassFromString(@"UIApplication");
-  if (uiApplicationClass &&
-      [uiApplicationClass respondsToSelector:(NSSelectorFromString(@"sharedApplication"))]) {
-    sharedApplication = [uiApplicationClass sharedApplication];
-  }
-  return sharedApplication;
-}
-#elif TARGET_OS_OSX
-+ (NSApplication *)sharedApplication {
-  return [NSApplication sharedApplication];
-}
-#endif
-
 #pragma mark - Helper methods
 
 + (BOOL)hasSCInfoFolder {