RMUniversalAlert
Wrapper class for UIAlertView / UIActionSheet / UIAlertController for targeting all iOS versions.
RMUniversalAlert is a wrapper class that builds upon UIAlertView+Blocks, UIActionSheet+Blocks, and UIAlertController+Blocks, and gives a simplified interface to support all iOS versions.
Interface
typedef void(^RMUniversalAlertCompletionBlock)(RMUniversalAlert *alert, NSInteger buttonIndex);Alert Views
+ (instancetype)showAlertInViewController:(UIViewController *)viewController
withTitle:(NSString *)title
message:(NSString *)message
cancelButtonTitle:(NSString *)cancelButtonTitle
destructiveButtonTitle:(NSString *)destructiveButtonTitle
otherButtonTitles:(NSArray *)otherButtonTitles
tapBlock:(RMUniversalAlertCompletionBlock)tapBlock;Action Sheets
+ (instancetype)showActionSheetInViewController:(UIViewController *)viewController
withTitle:(NSString *)title
message:(NSString *)message
cancelButtonTitle:(NSString *)cancelButtonTitle
destructiveButtonTitle:(NSString *)destructiveButtonTitle
otherButtonTitles:(NSArray *)otherButtonTitles
popoverPresentationControllerBlock:(void(^)(RMPopoverPresentationController *popover))popoverPresentationControllerBlock
tapBlock:(RMUniversalAlertCompletionBlock)tapBlock;Usage - Alert Views
The below code will show an alert on all iOS versions, and allow you to perform your logic in a single inline code path. On iOS 8 and above, it will use UIAlertController - giving you red text on the destructive button. On iOS 7 and earlier, it will use a standard UIAlertView.
Objective-C
[RMUniversalAlert showAlertInViewController:self
withTitle:@"Test Alert"
message:@"Test Message"
cancelButtonTitle:@"Cancel"
destructiveButtonTitle:@"Delete"
otherButtonTitles:@[@"First Other", @"Second Other"]
tapBlock:^(RMUniversalAlert *alert, NSInteger buttonIndex){
if (buttonIndex == alert.cancelButtonIndex) {
NSLog(@"Cancel Tapped");
} else if (buttonIndex == alert.destructiveButtonIndex) {
NSLog(@"Delete Tapped");
} else if (buttonIndex >= alert.firstOtherButtonIndex) {
NSLog(@"Other Button Index %ld", (long)buttonIndex - alert.firstOtherButtonIndex);
}
}];Swift
RMUniversalAlert.showAlertInViewController(self,
withTitle: "Test Alert",
message: "Test Message",
cancelButtonTitle: "Cancel",
destructiveButtonTitle: "Delete",
otherButtonTitles: ["First Other", "Second Other"],
tapBlock: {(alert, buttonIndex) in
if (buttonIndex == alert.cancelButtonIndex) {
println("Cancel Tapped")
} else if (buttonIndex == alert.destructiveButtonIndex) {
println("Delete Tapped")
} else if (buttonIndex >= alert.firstOtherButtonIndex) {
println("Other Button Index \(buttonIndex - alert.firstOtherButtonIndex)")
}
})Requirements
iOS 6 and later. Since version 0.7 the headers use the new Objective-C nullability annotations for nicer interoperability with Swift, so you will need Xcode 6.3 or later to compile it.
Usage - Action Sheet
The below code will show an action sheet on all iOS versions, and allow you to perform your logic in a single inline code path. On iOS 8 and above, it will use UIAlertController - giving you red text on the destructive button. On iOS 7 and earlier, it will use a standard UIActionSheet.
The popoverPresentationControllerBlock allows you to configure the popover's source view/rect/bar button item if the action sheet will be on an iPad.
Objective-C
[RMUniversalAlert showActionSheetInViewController:self
withTitle:@"Test Action Sheet"
message:@"Test Message"
cancelButtonTitle:@"Cancel"
destructiveButtonTitle:@"Delete"
otherButtonTitles:@[@"First Other", @"Second Other"]
popoverPresentationControllerBlock:^(RMPopoverPresentationController *popover){
popover.sourceView = self.view;
popover.sourceRect = sender.frame;
}
tapBlock:^(RMUniversalAlert *alert, NSInteger buttonIndex){
if (buttonIndex == alert.cancelButtonIndex) {
NSLog(@"Cancel Tapped");
} else if (buttonIndex == alert.destructiveButtonIndex) {
NSLog(@"Delete Tapped");
} else if (buttonIndex >= alert.firstOtherButtonIndex) {
NSLog(@"Other Button Index %ld", (long)buttonIndex - alert.firstOtherButtonIndex);
}
}];Swift
RMUniversalAlert.showActionSheetInViewController(self,
withTitle: "Test Action Sheet",
message: "Test Message",
cancelButtonTitle: "Cancel",
destructiveButtonTitle: "Delete",
otherButtonTitles: ["First Other", "Second Other"],
popoverPresentationControllerBlock: {(popover) in
popover.sourceView = self.view
popover.sourceRect = sender.frame
},
tapBlock: {(alert, buttonIndex) in
if (buttonIndex == alert.cancelButtonIndex) {
println("Cancel Tapped")
} else if (buttonIndex == alert.destructiveButtonIndex) {
println("Delete Tapped")
} else if (buttonIndex >= alert.firstOtherButtonIndex) {
println("Other Button Index \(buttonIndex - alert.firstOtherButtonIndex)")
}
})Installation
pod 'RMUniversalAlert' using CocoaPods.
Examples
Download this project, navigate to Tests and run pod install. Open RMUniversalAlert.xcworkspace.