1.修改textfield的颜色及位置
可以继承textfield类
重写它的方法；
-(void)drawPlaceholderInRect:(CGRect)rect
{
[[UIColor purpleColor]setFill];
[self.placeholder drawInRect:rect withFont:self.font lineBreakMode:UILineBreakModeTailTruncation alignment:self.textAlignment];
}
2.设置导航条透明
[self.navigationController.navigationBar setBackgroundImage:[UIImage new] forBarMetrics:UIBarMetricsDefault];
self.navigationController.navigationBar.shadowImage = [UIImage new];
self.navigationController.navigationBar.translucent = YES;
3.当自定义导航条左侧的item iOS 自带的侧滑就会消失 可以这样来实现侧滑
self.navigationItem.leftBarButtonItem = [[UIBarButtonItem alloc]initWithImage:nil style:UIBarButtonItemStylePlain target:self action:@selector(act)]; self.navigationController.interactivePopGestureRecognizer.delegate = (id<UIGestureRecognizerDelegate>)self;
4.监控键盘的事件；IQKeyboardManager 三方库
滑动，点击 隐藏导航栏（iOS8之后）
self.navigationController.hidesBarsOnSwipe = YES;
self.navigationController.hidesBarsOnTap = YES;
5.xib中设置边框
@interface CALayer (XibConfiguration)
// layer.cornerRadius
// layer.borderWidth
// layer.borderUIColor 边框颜色属性用borderUIColor
@property(nonatomic, assign) UIColor *borderUIColor;
-(void)setBorderUIColor:(UIColor*)color
{self.borderColor = color.CGColor;}
-(UIColor*)borderUIColor
{return [UIColor colorWithCGColor:self.borderColor];}
