iOS中 仿Tumblr點贊心破碎動畫 韓俊強的部落格
阿新 • • 發佈:2019-01-26
最近Tumblr輕部落格無論是web端還是移動端,都非常受歡迎,簡單調研了一下,其中動畫是我感興趣的,特此寫了個仿Tumblr點贊心破碎動畫;
1.首先看下效果:
2.模仿Tumblr中的效果應用如下:
原理:使用按鈕點選Action增加兩個事件,通過改變背景hidden和frame,切換圖片,增加動畫效果等;
setupUI及touch Action:
- (void)setupUI
{
// 點選的btn
UIButton *praiseBtn = [UIButton buttonWithType:UIButtonTypeCustom];
praiseBtn.frame = CGRectMake(100, 200, KKPraiseBtnWH, KKPraiseBtnWH);
[praiseBtn setImage:[UIImage imageNamed:@"icon_like"] forState:UIControlStateNormal];
[praiseBtn setImage:[UIImage imageNamed:@"icon_likeon"] forState:UIControlStateSelected];
[self.view addSubview:praiseBtn];
[praiseBtn addTarget:self action:@selector(clickTheBtn:) forControlEvents:UIControlEventTouchUpInside];
_praiseBtn = praiseBtn;
// 放大後的btn
_coverBtn = [UIButton buttonWithType:UIButtonTypeCustom];
_coverBtn.frame = praiseBtn.frame;
_coverBtn.alpha = 0;
[_coverBtn setImage:[UIImage imageNamed:@"big"] forState:UIControlStateSelected];
[_coverBtn setImage:[UIImage imageNamed:@"big"] forState:UIControlStateNormal];
[self.view insertSubview:_coverBtn belowSubview:praiseBtn];
_cancelPraiseImg = [[UIImageView alloc]initWithFrame:CGRectMake(80, 150, KKPraiseBtnWH*2, KKPraiseBtnWH*2*KKToBrokenHeartWH)];
_cancelPraiseImg.hidden = YES;
_cancelPraiseImg.centerX = _praiseBtn.centerX;
[self.view addSubview:_cancelPraiseImg];
}
-(void)clickTheBtn:(UIButton *)btn
{
[self playAnimation];
btn.userInteractionEnabled = NO;
btn.selected = !btn.selected;
}
-(void)playAnimation{
if (!_praiseBtn.selected) {
_coverBtn.alpha = 1;
[UIView animateWithDuration:1.0f animations:^{
_coverBtn.frame = CGRectMake(80, 100, KKPraiseBtnWH*2, KKPraiseBtnWH*2);
CAKeyframeAnimation *anima = [CAKeyframeAnimation animationWithKeyPath:@"transform.rotation"];
NSValue *value1 = [NSNumber numberWithFloat:-M_PI/180*5];
NSValue *value2 = [NSNumber numberWithFloat:M_PI/180*5];
NSValue *value3 = [NSNumber numberWithFloat:-M_PI/180*5];
anima.values = @[value1,value2,value3];
anima.repeatCount = MAXFLOAT;
[_coverBtn.layer addAnimation:anima forKey:nil];
_coverBtn.alpha = 0;
_coverBtn.centerX = _praiseBtn.centerX;
} completion:^(BOOL finished) {
_coverBtn.frame = _praiseBtn.frame;
_praiseBtn.userInteractionEnabled = YES;
}];
} else {
_cancelPraiseImg.hidden = NO;
NSArray *imgArr = [NSArray arrayWithObjects:[UIImage imageNamed:@"icon_like_broken1"],[UIImage imageNamed:@"icon_like_broken2"],[UIImage imageNamed:@"icon_like_broken3"],[UIImage imageNamed:@"icon_like_broken4"], nil];
_cancelPraiseImg.animationImages = imgArr;
_cancelPraiseImg.animationDuration = KKBorkenTime;
_cancelPraiseImg.animationRepeatCount = 1;
[_cancelPraiseImg startAnimating];
[UIView animateWithDuration:KKBorkenTime animations:^{
_cancelPraiseImg.frame = CGRectMake(80, 200, KKPraiseBtnWH*2, KKPraiseBtnWH*2*KKToBrokenHeartWH);
_cancelPraiseImg.alpha = 0;
}completion:^(BOOL finished) {
_cancelPraiseImg.frame = CGRectMake(80, 150, KKPraiseBtnWH*2, KKPraiseBtnWH*2*KKToBrokenHeartWH);
_cancelPraiseImg.alpha = 1;
_praiseBtn.userInteractionEnabled = YES;
}];
}
}
詳情請看Demo:喜歡❤️star一下吧,你的支援是我最大的動力!
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