Merge pull request #80 from ParsePlatform/nlutsenko.alertView

Fixed presentation of PFAlertView when rootViewController has presentedViewController.

Author: nlutsenko

Parse/Internal/PFAlertView.m

@@ -56,6 +56,9 @@ + (void)showAlertWithTitle:(NSString *)title
 
         UIWindow *keyWindow = [UIApplication sharedApplication].keyWindow;
         UIViewController *viewController = keyWindow.rootViewController;
+        while (viewController.presentedViewController) {
+            viewController = viewController.presentedViewController;
+        }
 
         [viewController presentViewController:alertController animated:YES completion:nil];
     } else {

Tests/Unit/AlertViewTests.m

@@ -44,6 +44,7 @@ - (void)testShowAlertWithAlertViewController {
     id mockedApplication = PFStrictClassMock([UIApplication class]);
     UIWindow *mockedWindow = PFStrictClassMock([UIWindow class]);
     UIViewController *mockedViewController = PFStrictClassMock([UIViewController class]);
+    OCMStub(mockedViewController.presentedViewController).andReturn(nil);
 
     // Using .andReturn() here will result in a retain cycle, which will cause our mocked shared application to
     // persist across tests.