自定义简单动画

注释:

duration 动画完成时间,

delay 动画延长时间,可以理解为动画速度的时间控制

一,利用

CGAffineTransformMakeScale来做图形的缩放效果

view.transform = CGAffineTransformMakeScale(1, 1);
    [UIView animateKeyframesWithDuration:duration/3 delay:delay options:0 animations:^{
        // End
        view.transform = CGAffineTransformMakeScale(1.2, 1.2);
    } completion:^(BOOL finished) {
        [UIView animateKeyframesWithDuration:duration/3 delay:0 options:0 animations:^{
            // End
            view.transform = CGAffineTransformMakeScale(0.9, 0.9);
        } completion:^(BOOL finished) {
            [UIView animateKeyframesWithDuration:duration/3 delay:0 options:0 animations:^{
                // End
                view.transform = CGAffineTransformMakeScale(1, 1);
            } completion:^(BOOL finished) {
                
            }];
        }];
    }];

二,结合alpha来做闪现缩放

view.alpha = 1;
    view.transform = CGAffineTransformMakeScale(0.9, 0.9);
    
    [UIView animateKeyframesWithDuration:duration/3 delay:delay options:0 animations:^{
        // End
        view.alpha = 0;
        view.transform = CGAffineTransformMakeScale(1.2, 1.2);
    } completion:^(BOOL finished) {
        
    }];

 三,利用

CGAffineTransformMakeTranslation来做view的移动动画

view.transform = CGAffineTransformMakeTranslation(CGRectGetWidth([UIScreen mainScreen].bounds), 0);
    [UIView animateKeyframesWithDuration:duration/4 delay:delay options:0 animations:^{
        // End
        view.transform = CGAffineTransformMakeTranslation(-10, 0);
    } completion:^(BOOL finished) {
        [UIView animateKeyframesWithDuration:duration/4 delay:0 options:0 animations:^{
            // End
            view.transform = CGAffineTransformMakeTranslation(5, 0);
        } completion:^(BOOL finished) {
            [UIView animateKeyframesWithDuration:duration/4 delay:0 options:0 animations:^{
                // End
                view.transform = CGAffineTransformMakeTranslation(-2, 0);
            } completion:^(BOOL finished) {
                [UIView animateKeyframesWithDuration:duration/4 delay:0 options:0 animations:^{
                    // End
                    view.transform = CGAffineTransformMakeTranslation(0, 0);
                } completion:^(BOOL finished) {
                    
                }];
            }];
        }];
    }];

当然以上这些都是可以相互组合来做更炫酷的动画,具体只需要了解响应的原理,便可根据需要做出自定义的动画