With this component you can declaratively describe animation sequences that consist of multiple steps. (Oh, and then you can run them, if you like.)
Something like this:
CPAnimationSequence* shakespeare = [CPAnimationSequence sequenceWithSteps:
[CPAnimationStep for:0.2 animate:^{ self.romeo.alpha = 1.0; }],
[CPAnimationStep for:0.2 animate:^{ self.julia.alpha = 1.0; }],
[CPAnimationStep after:1.0 for:0.7 animate:^{
CGPoint love = CGPointMake((self.romeo.center.x + self.julia.center.x)/2,
(self.romeo.center.y + self.julia.center.y)/2);
self.romeo.center = love;
self.julia.center = love;
}],
[CPAnimationStep after:2.0 for:0.5 animate:^{ self.romeo.alpha = 0.0;
self.julia.alpha = 0.0; }]
nil];
[shakespeare run];
I described the rationale and possible improvements on the compeople developer blog on Mobile Apps.
Feel free to comment, fork, and submit pull requests!
- Made for projects under ARC; you will therefore need to use SDK 5.0+.
- Deployment target iOS 4.3+ (The demo targets iOS 5.0, but is easily adapted for iOS 4.3).
The CPAnimationSequence component is released under the MIT License.
The MIT License (MIT) Copyright (c) 2011–2012 compeople AG
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:
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