注：动画四主要是用第三方动画库pop完成一个小效果。源码会在下个开源项目中贴出
讲真这个框架真的很牛逼
FaceBook 开源框架地址pop：https://github.com/facebook/pop
先看下开始展示没有自定义动画效果
开始展示的时候，没有动画效果
没有动画的效果吧：
可能太快了 看不出来和下面的对比效果
再看下有自定义动画效果的展示
JF.gif
展示：
/*
* 创建多个按钮
*/
- (void)setupButtons
{
// 数据
NSArray *images = @[@"ch2_xinjianrenwu_bg_new", @"ch2_xinjianricheng_bg_new", @"ch2_qiandaodaka_bg_new", @"ch2_fabudongtai_bg_new", @"ch2_fabutongzhi_bg_new", @"ch2_crm_bg_new"];
NSArray *titles = @[@"新建任务", @"新建日程", @"签到打卡", @"发布动态", @"发布通知", @"JF"];
// 类似九宫格创建法
NSUInteger count = images.count;
int maxColsCount = 3; // 一行的列数
NSUInteger rowsCount = (count + maxColsCount - 1) / maxColsCount;
// 按钮尺寸
CGFloat buttonW = JFSCREENWIDTH / maxColsCount;
CGFloat buttonH = buttonW * 1.2;
CGFloat buttonStartY = (JFSCREENHEIGHT - rowsCount * buttonH) * 0.5;
for (int i = 0; i < count; i++) {
// 创建、添加
JFAddTaskButton *button = [JFAddTaskButton buttonWithType:UIButtonTypeCustom];
button.width = -1; // 按钮的尺寸为0，还是能看见文字缩成一个点，设置按钮的尺寸为负数，那么就看不见文字了
[button addTarget:self action:@selector(buttonClick:) forControlEvents:UIControlEventTouchUpInside];
[self.buttons addObject:button];
[self.view addSubview:button];
// 内容
[button setImage:[UIImage imageNamed:images[i]] forState:UIControlStateNormal];
[button setTitle:titles[i] forState:UIControlStateNormal];
// frame
CGFloat buttonX = (i % maxColsCount) * buttonW;
CGFloat buttonY = buttonStartY + (i / maxColsCount) * buttonH;
// 初始化一个pop动画对象
POPSpringAnimation *anim = [POPSpringAnimation animationWithPropertyNamed:kPOPViewFrame];
// 从哪里来
anim.fromValue = [NSValue valueWithCGRect:CGRectMake(buttonX, buttonY - JFSCREENHEIGHT, buttonW, buttonH)];
// 到哪里去
anim.toValue = [NSValue valueWithCGRect:CGRectMake(buttonX, buttonY, buttonW, buttonH)];
// 动画速率
anim.springSpeed = JFSpringFactor;
// 摩擦系数
anim.springBounciness = JFSpringFactor;
// CACurrentMediaTime()获得的是当前时间
anim.beginTime = CACurrentMediaTime() + [self.times[i] doubleValue];
[button pop_addAnimation:anim forKey:nil];
}
}
消失：
// 禁止交互
self.view.userInteractionEnabled = NO;
// 让按钮执行动画
for (int i = 0; i < self.buttons.count; i++) {
JFAddTaskButton *button = self.buttons[i];
POPBasicAnimation *anim = [POPBasicAnimation animationWithPropertyNamed:kPOPLayerPositionY];
anim.toValue = @(button.layer.position.y + JFSCREENHEIGHT);
// CACurrentMediaTime()获得的是当前时间
anim.beginTime = CACurrentMediaTime() + [self.times[i] doubleValue];
[button.layer pop_addAnimation:anim forKey:nil];
}
JFWeakSelf;
// 让标题执行动画
POPBasicAnimation *anim = [POPBasicAnimation animationWithPropertyNamed:kPOPLayerPositionY];
anim.toValue = @(self.sloganImageView.layer.position.y + JFSCREENHEIGHT);
// CACurrentMediaTime()获得的是当前时间
anim.beginTime = CACurrentMediaTime() + [self.times.lastObject doubleValue];
[anim setCompletionBlock:^(POPAnimation *anim, BOOL finished) {
[weakSelf dismissViewControllerAnimated:NO completion:nil];
}];
[self.sloganImageView.layer pop_addAnimation:anim forKey:nil];
标题语
- (void)setupSloganView
{
CGFloat sloganY = JFSCREENHEIGHT * 0.2;
// 添加
UIImageView *sloganView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"app_slogan"]];
sloganView.y = sloganY - JFSCREENHEIGHT;
sloganView.centerX = JFSCREENWIDTH * 0.5;
[self.view addSubview:sloganView];
self.sloganImageView = sloganView;
JFWeakSelf;
// 动画
POPSpringAnimation *anim = [POPSpringAnimation animationWithPropertyNamed:kPOPLayerPositionY];
anim.toValue = @(sloganY);
anim.springSpeed = JFSpringFactor;
anim.springBounciness = JFSpringFactor;
// CACurrentMediaTime()获得的是当前时间
anim.beginTime = CACurrentMediaTime() + [self.times.lastObject doubleValue];
[anim setCompletionBlock:^(POPAnimation *anim, BOOL finished) {
// 开始交互
weakSelf.view.userInteractionEnabled = YES;
}];
[sloganView.layer pop_addAnimation:anim forKey:nil];
}
2015-12 - 29 上海
