zya

ZYActivity

Easier UIActivity inheritance.

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ZYActivity

Extending the regular UIActivity

iOS 6 introduced the UIActivity, as an inheritable class.

In order to create custom activities programmers would have to override the following:

- (NSString *)activityType;
- (NSString *)activityTitle;
- (UIImage *)activityImage;
- (BOOL)canPerformWithActivityItems:(NSArray *)activityItems;
- (void)prepareWithActivityItems:(NSArray *)activityItems;

Plus one and just one of the following:

- (UIViewController *)activityViewController;
- (void)performActivity;

Extending the ZYActivity

Extending the UIActivity isn't the most convenient way. By inheriting from this class you'll find that activityType is taken care of and that the storing of the activity items and the execution of the action happens in one step, so instead of prepareWithActivityItems:, performActivity and activityViewController you now only have to override performWithActivityItems:.

If you don't want to show a UIViewController, you can simply return nil on performWithActivityItems:.

So now, only the following need to be overridden:

- (NSString *)activityTitle;
- (UIImage *)activityImage;
- (BOOL)canPerformWithActivityItems:(NSArray *)activityItems;
- (UIViewController *)performWithActivityItems:(NSArray *)activityItems;

Silent activity sample - source

- (UIViewController *)performWithActivityItems:(NSArray *)activityItems {

    NSOperationQueue *backgroundQueue =
    [[NSOperationQueue alloc] init];

    [backgroundQueue addOperationWithBlock:^{
    
        NSLog(@"My activity has begun!", nil);
    
        sleep(3);
    
        NSLog(@"My activity has finished!", nil);
    
        [self activityDidFinish:YES];
    }];

    return nil;
}

Visible activity sample - source

- (UIViewController *)performWithActivityItems:(NSArray *)activityItems {

    ZYHelloViewController *helloViewController =
    [[ZYHelloViewController alloc] initWithNibName:@"ZYHelloViewController"
                                            bundle:nil];
    
    helloViewController.activity = self;

    return helloViewController;
}

License

Copyright (c) 2012 Mariano Abdala.

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.

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