title: UIView 相关知识

tags: UIView

masonry 添加约束，并修改约束添加View动画

//添加约束masView = [UIView new];masView.backgroundColor = [UIColor redColor];[self.view addSubview:masView];[masView mas_makeConstraints:^(MASConstraintMaker *make) {    make.leading.equalTo(self.view).offset(20);//距离self.view左侧20    make.top.equalTo(self.view).offset(200);//距离self.view顶部200    make.width.offset(80);//宽度80    make.height.offset(80);//高度80}];//更新约束并添加动画,如果更新不成功可尝试 mas_remakeConstraints[masView mas_updateConstraints:^(MASConstraintMaker *make) {    make.width.and.height.offset(100);    make.leading.equalTo(self.view).offset(100);}];[UIView animateWithDuration:3 animations:^{    [self.view layoutIfNeeded];}];

uiview 圆角设置

m_mainImgView.layer.cornerRadius = 6;m_mainImgView.layer.masksToBounds = YES;

UIView缩放动画

-(void)mapView:(BMKMapView *)mapView didAddAnnotationViews:(NSArray *)views{    /* 为新添的annotationView添加弹出动画. */    for (UIView *view in views)    {        [self addBounceAnnimationToView:view];    }}/* annotation弹出的动画. */- (void)addBounceAnnimationToView:(UIView *)view{    CAKeyframeAnimation *bounceAnimation = [CAKeyframeAnimation animationWithKeyPath:@"transform.scale"];        bounceAnimation.values = @[@(0.05), @(1.1), @(0.9), @(1)];    bounceAnimation.duration = 0.6;        NSMutableArray *timingFunctions = [[NSMutableArray alloc] initWithCapacity:bounceAnimation.values.count];    for (NSUInteger i = 0; i < bounceAnimation.values.count; i++)    {        [timingFunctions addObject:[CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut]];    }    [bounceAnimation setTimingFunctions:timingFunctions.copy];        bounceAnimation.removedOnCompletion = NO;        [view.layer addAnimation:bounceAnimation forKey:@"bounce"];}

边框阴影

- (void)viewDidLoad  {      [self.view setBackgroundColor:[UIColor whiteColor]];      UIView *shadowView=[[UIView alloc] initWithFrame:CGRectMake(100, 100, 120, 120)];      [shadowView setBackgroundColor:[UIColor grayColor]];      [shadowView.layer setCornerRadius:4.0f];//设置View圆角      [shadowView.layer setShadowColor:[UIColor blackColor].CGColor];//设置View的阴影颜色      [shadowView.layer setShadowOpacity:0.8f];//设置阴影的透明度      [shadowView.layer setOpacity:0.5f];//设置View的透明度      [shadowView.layer setShadowOffset:CGSizeMake(4.0, 3.0)];//设置View Shadow的偏移量      [self.view addSubview:shadowView];      [super viewDidLoad];      // Do any additional setup after loading the view, typically from a nib.  }