Add alert convenience methods.

kirbyt · Sep 26, 2015 · d25be00 · d25be00
1 parent 3b67836
commit d25be00
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Showing 2 changed files with 25 additions and 4 deletions.
diff --git a/WPSKit/UIKit/UIViewController+WPSKit.h b/WPSKit/UIKit/UIViewController+WPSKit.h
@@ -11,7 +11,10 @@
 @interface UIViewController (WPSKit)
 
 - (void)wps_clearBackButtonTitle;
-- (void)wps_setBackButtonTitle:(NSString *)title;
-- (void)wps_setBackButtonChevron:(UIImage *)image;
+- (void)wps_setBackButtonTitle:(nullable NSString *)title;
+- (void)wps_setBackButtonChevron:(nullable UIImage *)image;
+
+- (void)wps_presentOkayAlertWithTitle:(nullable NSString *)title message:(nullable NSString *)message;
+- (void)wps_presentOkayAlertWithError:(nullable NSError *)error;
 
 @end
diff --git a/WPSKit/UIKit/UIViewController+WPSKit.m b/WPSKit/UIKit/UIViewController+WPSKit.m
@@ -15,17 +15,35 @@ - (void)wps_clearBackButtonTitle
   [self wps_setBackButtonTitle:@""];
 }
 
-- (void)wps_setBackButtonTitle:(NSString *)title
+- (void)wps_setBackButtonTitle:(nullable NSString *)title
 {
    UIBarButtonItem *backButton = [[UIBarButtonItem alloc] initWithTitle:title style:UIBarButtonItemStylePlain target:nil action:nil];
    [[self navigationItem] setBackBarButtonItem:backButton];
 }
 
-- (void)wps_setBackButtonChevron:(UIImage *)image
+- (void)wps_setBackButtonChevron:(nullable UIImage *)image
 {
   UINavigationBar *navBar = [[self navigationController] navigationBar];
   [navBar setBackIndicatorImage:image];
   [navBar setBackIndicatorTransitionMaskImage:image];
 }
 
+#pragma mark - Alert Helpers
+
+- (void)wps_presentOkayAlertWithTitle:(nullable NSString *)title message:(nullable NSString *)message
+{
+  UIAlertController *alertController = [UIAlertController alertControllerWithTitle:title message:message preferredStyle:UIAlertControllerStyleAlert];
+  UIAlertAction *okayAction = [UIAlertAction actionWithTitle:NSLocalizedStringFromTable(@"OK", @"WPSKit", @"Alert button title") style:UIAlertActionStyleDefault handler:nil];
+  [alertController addAction:okayAction];
+
+  [self presentViewController:alertController animated:YES completion:nil];
+}
+
+- (void)wps_presentOkayAlertWithError:(nullable NSError *)error
+{
+  NSString *title = NSLocalizedStringFromTable(@"Error",  @"WPSKit", @"Alert title.");
+  NSString *message = [error localizedDescription];
+  [self wps_presentOkayAlertWithTitle:title message:message];
+}
+
 @end