IOS几种类型的动画

1.点击按钮,弹出View,再次点击,View回去

      创建一个Button,并给button设置一个Bool值,在button的点击事件里写:

           - (void)viewBtnAction:(UIButton *)btn{
   
    if (self.viewbtn.selected) {
        [UIView animateWithDuration:0.5 animations:^{
            self.myView.frame = CGRectMake(0, 677, 375, 50);
            NSLog(@"===== %@", NSStringFromCGRect(self.myView.frame));
        }];
    }else{
   
    //view动画
    //参数1:动画时长
    [UIView animateWithDuration:0.5 animations:^{

        self.myView.frame = CGRectMake(0, 577, 375, 50);

        NSLog(@"===== %@",NSStringFromCGRect(self.myView.frame));

    }];

}

2.点击按钮.弹出View,过几秒,View自动回去

          创建一个Button,在button的点击事件里写:

- (void)viewBtnAction:(UIButton *)btn{

     [UIView animateWithDuration:0.5 animations:^{

            self.myView.frame = CGRectMake(0, 677, 375, 50);
            NSLog(@"===== %@", NSStringFromCGRect(self.myView.frame));
        }];

     //delay 延迟几秒执行

    [UIView animateWithDuration:0.5 delay:0.5 options:UIViewAnimationOptionLayoutSubviews animations:^{
        self.myView.frame = CGRectMake(0, 667, 375, 50);
    } completion:^(BOOL finished) {
       
    }];

}

3.键盘上的自定义动画框

      //监听键盘弹起

    [[NSNotificationCenter defaultCenter]addObserver:self selector:@selector(keyboardWillShow:) name:UIKeyboardWillShowNotification object:nil];

- (void)keyboardWillShow:(NSNotification *)notif{
    //得到键盘frame,通过键盘frame改变自定义工具栏高度
    CGRect frame = [[[notif userInfo] objectForKey:UIKeyboardFrameEndUserInfoKey] CGRectValue];
    NSLog(@"frame == %@", NSStringFromCGRect(frame));
    //view动画
    //参数1:动画时长
    [UIView animateWithDuration:0.5 animations:^{
        self.myView.frame = CGRectMake(0, 627 - frame.size.height, 375, 50);
        NSLog(@"===== %@", NSStringFromCGRect(self.myView.frame));
    }];

}

4. Transform动画

         创建一个View,和一个按钮,在按钮的点击事件里写

- (void)TransformBtnAction:(UIButton *)btn{
   
    //transform是View的一个属性,是用来改变View的形态的,通过设置transform属性值可以实现View的形态变化,比如旋转,缩放等
    //rotate:旋转的意思  M_PI是180度
//    self.myView.transform = CGAffineTransformRotate(self.myView.transform, M_PI_4);
    //每次缩放原来的0.9倍
//    self.myView.transform = CGAffineTransformScale(self.myView.transform, 0.9, 0.9);
    //移动  正数代表往右下方移动,负数代表往左上方移动

    self.myView.transform = CGAffineTransformTranslate(self.myView.transform, 5, 5);

}

5.layer动画

     创建一个Button控制,点击旋转,再次点击停止,再点击又继续;在View上添加一张图片,并给图片设置轻拍,可以点击图片控制旋不旋转,并设置Bool值;

     在Button的点击事件里写:

      - (void)layerBtnAction:(UIButton *)btn{
    //layer层,每个View视图都有一个layer层,使用来设置View上的内容,比如背景颜色,frame,文字等内容,而View只用来负责显示layer层
    //我们可以通过改变layer层的内容
   
    //改变view  z轴值
    CABasicAnimation *animation = [CABasicAnimation animationWithKeyPath:@"transform.rotation.z"];
    //旋转起始值
    animation.fromValue = [NSNumber numberWithInt:0];
    //最终旋转的角度
    animation.toValue = [NSNumber numberWithInt:M_PI * 2];
    //旋转时间
    animation.duration = 10;
    //重复次数,NSIntegerMax为无限旋转
    animation.repeatCount = NSIntegerMax;
    //旋转结束后是否要逆向返回原位置
    animation.autoreverses = NO;
    //是否按照结束位置继续旋转
    animation.cumulative = YES;
    [self.imgV.layer addAnimation:animation forKey:@"basicAnimation"];
   

}

     在轻拍事件里写:

- (void)tapImg:(UITapGestureRecognizer *)tap{
   

    if (self.isSelected) {

        //获得上次停止的时间的偏移量
        CFTimeInterval stopTime = self.imgV.layer.timeOffset;
        self.imgV.layer.beginTime = 0;
        //设置速度
        self.imgV.layer.speed = 1.0;
        //设置偏移量为0
        self.imgV.layer.timeOffset = 0;
        //设置开始时间
        self.imgV.layer.beginTime = [self.imgV.layer convertTime:CACurrentMediaTime() fromLayer:nil] - stopTime;
    }else{
       
        //每一个view的layer层系统设置记录了一个时间的属性,通过改变view动画时间来控制动画效果
        //获得当前旋转的时间点
        CFTimeInterval stopTime = [self.imgV.layer convertTime:CACurrentMediaTime() fromLayer:nil];
        //设置播放速度变成0,即停止
        self.imgV.layer.speed = 0;
        self.imgV.layer.timeOffset = stopTime;
    }
    self.isSelected = !self.isSelected;
   

}

6.长按晃动

     在一个View上添加长按手势

      UILongPressGestureRecognizer *longView = [[UILongPressGestureRecognizer alloc] initWithTarget:self action:@selector(longView:)];

    [self.myView addGestureRecognizer:longView];

- (void)longView:(UILongPressGestureRecognizer *)longTap{
   
    //旋转
    CAKeyframeAnimation *keyAnimation = [CAKeyframeAnimation animationWithKeyPath:@"transform.rotation"];
    float top = M_PI / 18;
    float bom = -M_PI / 18;
    keyAnimation.values = @[@(top),@(0),@(bom),@(0),@(top)];
    keyAnimation.repeatCount = NSIntegerMax;
    keyAnimation.duration = 0.3;
    [self.myView.layer addAnimation:keyAnimation forKey:@"key"];
   
    dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(4 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
        //停止动画
        [self.myView.layer removeAnimationForKey:@"key"];
       
    });

}

7.关键帧动画:

    创建一个按钮,在按钮上放一张没颜色图片,点击按钮,变成另一张带颜色图片,在按钮的点击事件里写:

- (void)zanBtnAction:(UIButton *)btn{
   
    //关键帧动画
    CAKeyframeAnimation *keyAnimation = [CAKeyframeAnimation animationWithKeyPath:@"transform.scale"];
    //设置关键帧的值,values是数组类型
    keyAnimation.values = @[@(0.1),@(1.0),@(1.5)];
//    NSNumber *num = [NSNumber numberWithFloat:0.1];
//    keyAnimation.values = [NSArray arrayWithObjects:(nonnull id), ..., nil];
    keyAnimation.duration = 0.3;
    [self.zanBtn.layer addAnimation:keyAnimation forKey:@"key"];
   
    if (self.zanBtn.isSelected == NO) {
        [self.zanBtn setBackgroundImage:[UIImage imageNamed:@"zan4.jpg"] forState:UIControlStateNormal];
    }else{
        [self.zanBtn setBackgroundImage:[UIImage imageNamed:@"zan2.jpg"] forState:UIControlStateNormal];
    }
    self.zanBtn.selected = !self.zanBtn.selected;

}