PBReadableTransaction

Writable and readable CATransaction Animation Code.

CATransaction code is too long and unreadable:

[CATransaction begin];
[CATransaction setAnimationDuration:duration];
[CATransaction setAnimationTimingFunction:[CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut]];

// After Animation.
[CATransaction setCompletionBlock:^{
    plusLayer.affineTransform = CGAffineTransformMakeScale(1.5f, 1.5f);     // Scale 1.5
    arrowLayer.hidden = YES;
}];

// animation.
arrowLayer.opacity = 0.0f; 
arrowLayer.affineTransform = CGAffineTransformMakeRotation(M_PI * 0.5f);    // Rotate 45.
plusLayer.opacity = 1.0f;
plusLayer.affineTransform = CGAffineTransformIdentity;                      // Set Default.

[CATransaction commit];

PBReadableTransaction code:

[CATransaction animateWithDuration:duration
                animationCurveType:PBCurveTypeEaseInOut
                        animations:^{
                            arrowLayer.basicAnims = @{kFade: @(0.0f), kRotate: @(90.0f)};
                            plusLayer.basicAnims = @{kFade: @(1.0f), kRotate: @(0.0f)};
                        } completion:^{
                            plusLayer.scale = 1.5f;
                            arrowLayer.hidden = YES;
                        }];

Usage

Add your cord

#import "PBReadableTransaction.h"

Animatable Propertys

// CALayer
layer.fade = 0.45f;     // layer.opacity
layer.rotate = 45.0f;   // layer.transform = CGAffineTransformMakeRotation(...)
layer.scale = 1.3f      // layer.transform = CGAffineTransformMakeScale(...)
layer.move = (UIOffset){10.0f, 10.0f};  // layer.transform = CGAffineTransformMakeTranslate(...)

// CAShapeLayer added.
shapeLayer.drawOutline = 1.0f;  // shapeLayer.strokeEnd


// Set Multiple Animations
layer.basicAnims = @{kFade: @0.0f, kRotate: @90.0f, kScale: @1.2f};
shapeLayer.basicAnims = @{kFade: @0.4f, kMove: moveOffset(10.0f, -15.0f), kDrawOutline: 0.0f};

// Reset all animation propertys
[layer resetBasicAnims];

CATransaction with Blocks

// CATransaction Animation
[CATransaction animateWithDuration:duration
                animationCurveType:PBCurveTypeEaseInOut
                        animations:^{
                            // Do animation...
                        } completion:^{
                            // Do completed action...
                        }];
                        
// Disabled Animation
[CATransaction nonAnimateBlock:^{
    // Set layer propertys. non animate.
}];

More complicated animation

typedef void (^transactionBlock_t)();

- (void)beginToggleAnimationIsOn:(BOOL)isOn 
{
    transactionBlock_t readyBlock = nil;
    transactionBlock_t firstAnimBlock = nil;
    transactionBlock_t secondAnimBlock = nil;
    transactionBlock_t completeBlock = nil;
    
    if (isOn) {
        readyBlock = ^ {
            // Preparations for animation
        };
        firstAnimBlock = ^{ ... };
        secondAnimBlock = ^{ ... };
        completeBlock = ^{ ... };
    } else {
        readyBlock = ...
        firstAnimBlock = ...
        secondAnimBlock = ...
        completeBlock = ...
    }
    
    
    [CATransaction nonAnimateBlock:readyBlock];             // ready

    [CATransaction animateWithDuration:firstDuration
                animationCurveType:PBCurveTypeEaseInOut
                        animations:firstAnimBlock           // first animation
                        completion:^{
        [CATransaction animateWithDuration:secondDuration
                        animationCurveType:PBCurveTypeEaseOut
                                animations:secondAnimBlock  // second animation
                                completion:completeBlock];  // completion
    }];
}

Disabled Actions (Added: Jan 1, 2013)

// layer.position = ..., layer.transform = ... Non animatable.
layer.disabledActionKey = CAActionPosition | CAActionTransform;

License

This code is distributed under the terms and conditions of the MIT license.