IDMAlertViewManager was developed to help you mitigate the problem of dealing with alerts of different priorities and it also focuses on having only one alert window being displayed at a time, centralizing default network error messages in one single class.

Installation

Simply add pod 'IDMAlertViewManager' to your Podfile. Alternatively you can also copy the files in the folder Classes to your project.

We recommend importing it in the project's .pch to ease access, but you may also import on every class using UIAlertViewManager

Usage

IDMAlertViewManager completely overrides the use of UIAlertView. In fact, you shouldn't call any UIAlertView anymore. Let us deal with it for you.

The first thing you may want to do is to set the default title and message for the connectivity error alert. Append it to the bottom of your applicationDidFinishLaunching: from your AppDelegate:

[IDMAlertViewManager setDefaultConnectionErrorTitle:@"Network Connectivity Error" 
                                            message:@"Couldn't reach the server. Please, try again."];

// You may also want to provide other buttons to dismiss the window:
[IDMAlertViewManager setDefaultConnectionErrorTitle:@"Network Connectivity Error" 
                                            message:@"Couldn't reach the server. Please, try again."
                                            buttons:@[@"Cancel", @"Refresh"]];

To show the default alert window for connectivity error you must call [IDMAlertViewManager showDefaultConnectionFailureAlert]. Alternatively you can send blocks to be executed on success or failure:

[IDMAlertViewManager showDefaultConnectionAlertWithSuccess:^(NSUInteger selectedIndex) {
    // Something to do when the user dismisses the alert view
} failure:^(NSError *error) {
    // Usually called when another alert with higher priority must appear.
    // May also mean that the alert was dismissed programmatically.
    // You can find the error cause comparing error.code against the enum IDMAlertError
}];

The alert for connectivity error is always called with the default priority (IDMAlertPriorityMedium). IDMAlertViewManager adds OK as the text for the default dismissal button but you can change it if you may using [IDMAlertViewManager setDefaultDismissalButton:@"Cancel"].

Other alerts

The most complete method available is:

[IDMAlertViewManager showAlertWithTitle:@"Title"
                                message:@"Message"
                               priority:IDMAlertPriorityHigh
                                success:^(NSUInteger selectedIndex) {
                                    // Do something after dismissing the alert
                              } failure:^(NSError *error) {
                                    // Oops! Something went wrong!
                              } buttons:@[@"Yes", @"No"]];

You can also give an instance of UIAlertView to be displayed according to a priority:

UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:title
                                                    message:message
                                                   delegate:self
                                          cancelButtonTitle:@"Cancel"
                                          otherButtonTitles:@"OK", nil];

[IDMAlertViewManager showAlertView:alertView priority:IDMAlertPriorityMedium];

Priorities

There are four main priorities, but any unsigned integer may be provided to set a priority to an alert. The lower the value, the higher the priority.

If there's an alert on the screen and another with higher priority tries to appear, the current alert will be dismissed calling its errorBlock and the new alert will get its place on the screen. There will only be one alert being displayed at a time.

If an alert with equal or lower priority tries to pop on top of an existing alert, it won't show up and its errorBlock will be called if not nil.

These are the preset priorities from the IDMAlertPriority enum:

You can check the full documentation for more information.

Compatibility

IDMAlertViewManager's test classes were writen using Apple's new framework XCTest, so it's only tested agains iOS 7 since previous versions (<= iOS 6.1) are not compatible with XCTest.

However, IDMAlertViewManager does not uses anything previous to iOS 5.1, therefore it may successfully work with any iOS version from 5.1 to above. But be aware that any further development will only be tested agains iOS 7!

License

IDMAlertViewManager is licensed under the MIT License:

Copyright (c) 2013 Ideais Mobile (http://www.ideais.com.br/divisao-mobile/)

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

Complete Documentation >