问题描述

我一直在尝试使用以下方法旋转按钮:

I've been trying to rotate a button using the following method:

-(IBAction)rotate:(id)sender{
    CGPoint pencilCenter = pencil.center;
    [pencil setCenter:pencilCenter];
    CGFloat floater = 1.0;
    [UIView animateWithDuration:0.7 animations:^(void){
        [pencil setTransform:CGAffineTransformMakeRotation(floater)];
    }];
    [UIView animateWithDuration:0.7 animations:^(void){
        [pencil setTransform:CGAffineTransformMakeRotation(floater)];
    }];
}

这应该使按钮进行某种摇动"，然后它应该回到原来的位置 - 但它所做的只是改变按钮的位置，将其仅移动到一侧并在另一次运行按钮没有反应的方法根本.

This is supposed to make the button do some kind of "shake", then it's supposed to be back in its original position- yet all it does is changing the button's location, moving it to only one side and on another run of the method the button doesn't react at all.

我的代码有什么问题?

谢谢！

编辑 2:我的问题是 - 我如何制作一个按钮来做一点摇晃/摆动，例如编辑 sptingboard 时的 Wiggle 应用模式.

EDIT 2: My que is- how do I make a button to do a little shake/wiggle ,e.g. the wiggle app mode when editing sptingboard.

使用此代码让我向左旋转，从左到右然后从右到左平滑动画，然后旋转到原始位置.现在，我希望它不仅仅是旋转，而是通过动画来实现，比如摆动.

Using this code is giving me rotation to left, smooth animates from left to right then right to left, then rotates to original position. Now, I want this not to just rotate, but do this with an animation, like a wiggle.

[UIView animateWithDuration:0.25
                      delay:0.0
                    options:(UIViewAnimationOptionAllowUserInteraction | UIViewAnimationCurveLinear | UIViewAnimationOptionAutoreverse)
                 animations:^ {
                     pencil.transform = CGAffineTransformMakeRotation(DEGREES_TO_RADIANS(30));
                     pencil.transform = CGAffineTransformIdentity;
                 }
                 completion:^(BOOL finished){
                 }
 ];

谢谢！

推荐答案

导入QuartzCore/QuartzCore.h"试试这个，

Import "QuartzCore/QuartzCore.h" and try this,

CABasicAnimation *fullRotation;
fullRotation = [CABasicAnimation animationWithKeyPath:@"transform.rotation"];
fullRotation.delegate = self;
fullRotation.fromValue = [NSNumber numberWithFloat:0];
fullRotation.toValue = [NSNumber numberWithFloat:((360*M_PI)/180)];
fullRotation.duration = 1.7;
fullRotation.repeatCount = 2;
[btnTemp.layer addAnimation:fullRotation forKey:@"360"];

这篇关于旋转 UIButton的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持编程学习网！