你好动画专家!
我偶然发现了使用他们的Pop库为iOS的Facebook折纸.
所有的教程(在他们网站上的其他地方都在线)似乎专注于掌握Quartz Composer方面.我对如何获取导出的代码感兴趣(单击QC中的Origami图标并选择Export iOS code.)
进入我的iOS应用程序.
所以我开始下载“2D Waggle”示例:2D Waggle Example
以下是导出的代码:
#import "ViewController.h"
#import <POP/POP.h>
#import <POP/POPLayerExtras.h>
@interface ViewController ()
@property (nonatomic) CGFloat popAnimationProgress;
@property (nonatomic) CGFloat popAnimationProgress;
@end
@implementation ViewController
// popAnimation transition
- (void)togglePopAnimation:(BOOL)on {
POPSpringAnimation *animation = [self pop_animationForKey:@"popAnimation"];
if (!animation) {
animation = [POPSpringAnimation animation];
animation.springBounciness = 5;
animation.springSpeed = 10;
animation.property = [POPAnimatableProperty propertyWithName:@"popAnimationProgress" initializer:^(POPMutableAnimatableProperty *prop) {
prop.readBlock = ^(ViewController *obj, CGFloat values[]) {
values[0] = obj.popAnimationProgress;
};
prop.writeBlock = ^(ViewController *obj, const CGFloat values[]) {
obj.popAnimationProgress = values[0];
};
prop.threshold = 0.001;
}];
[self pop_addAnimation:animation forKey:@"popAnimation"];
}
animation.toValue = on ? @(1.0) : @(0.0);
}
- (void)setPopAnimationProgress:(CGFloat)progress {
_popAnimationProgress = progress;
POPLayerSetTranslationX(self.layer.layer, POPPixelsToPoints(progress));
}
// popAnimation transition
- (void)togglePopAnimation:(BOOL)on {
POPSpringAnimation *animation = [self pop_animationForKey:@"popAnimation"];
if (!animation) {
animation = [POPSpringAnimation animation];
animation.springBounciness = 5;
animation.springSpeed = 10;
animation.property = [POPAnimatableProperty propertyWithName:@"popAnimationProgress" initializer:^(POPMutableAnimatableProperty *prop) {
prop.readBlock = ^(ViewController *obj, CGFloat values[]) {
values[0] = obj.popAnimationProgress;
};
prop.writeBlock = ^(ViewController *obj, const CGFloat values[]) {
obj.popAnimationProgress = values[0];
};
prop.threshold = 0.001;
}];
[self pop_addAnimation:animation forKey:@"popAnimation"];
}
animation.toValue = on ? @(1.0) : @(0.0);
}
- (void)setPopAnimationProgress:(CGFloat)progress {
_popAnimationProgress = progress;
POPLayerSetTranslationY(self.layer.layer, POPPixelsToPoints(-progress));
}
// Utilities
static inline CGFloat POPPixelsToPoints(CGFloat pixels) {
static CGFloat scale = -1;
if (scale < 0) {
scale = [UIScreen mainScreen].scale;
}
return pixels / scale;
}
这是我试图用来与生成的东西进行交互的代码:
-(void)awakeFromNib
{
UIPanGestureRecognizer* pan = [[UIPanGestureRecognizer alloc] initWithTarget:self action:@selector(move:)];
[self addGestureRecognizer:pan];
}
static float firstX=0,firstY=0;
-(void)move:(id)sender {
[self bringSubviewToFront:[(UIPanGestureRecognizer*)sender view]];
CGPoint translatedPoint = [(UIPanGestureRecognizer*)sender translationInView:self];
if ([(UIPanGestureRecognizer*)sender state] == UIGestureRecognizerStateBegan) {
firstX = [[sender view] center].x;
firstY = [[sender view] center].y;
[self togglePopAnimationX:YES];
[self togglePopAnimationY:YES];
}
else if ([(UIPanGestureRecognizer*)sender state] == UIGestureRecognizerStateEnded) {
[self togglePopAnimationX:NO];
[self togglePopAnimationY:NO];
}
translatedPoint = CGPointMake(firstX+translatedPoint.x, firstY+translatedPoint.y);
//
if ([(UIPanGestureRecognizer*)sender state] == UIGestureRecognizerStateChanged) {
POPLayerSetTranslationX(self.layer, translatedPoint.x);
POPLayerSetTranslationY(self.layer, translatedPoint.y);
//[[sender view] setCenter:translatedPoint];
}
}
我只想说,这不起作用:(
所以我想我的问题是如何启动动画?
我要做的是在QC Origami中模拟“Swipe”输入补丁(见截图)
如果有人对我做错了什么以及如何正确调用动画有任何想法,我将非常感激.
非常感谢!
最佳答案 关键是将屏幕截图中的每个框/动画/设置命名为拥有自己的objectName,以便您知道它引用的是哪个CA层.然后,在导出代码时,每个popAnimation都将具有特定名称并应用于特定对象.
例:
代替
@property (nonatomic) CGFloat popAnimationProgress;
self.layer.layer
你会看到的
@property (nonatomic) CGFloat popAnimationProgress_Object1;
self.object2.layer