切小标签圆角 设置导航条字体样式

切小标签圆角

    UIBezierPath *maskPath = [UIBezierPath bezierPathWithRoundedRect:self.markLabel.bounds byRoundingCorners:UIRectCornerBottomLeft | UIRectCornerBottomRight cornerRadii:CGSizeMake(5, 5)];
    CAShapeLayer *maskLayer = [[CAShapeLayer alloc] init];
    maskLayer.frame = self.markLabel.bounds;
    maskLayer.path = maskPath.CGPath;
    self.markLabel.layer.mask = maskLayer; 

 设置导航条字体样式

 [[UINavigationBar appearance] setTitleTextAttributes:@{NSForegroundColorAttributeName:[UIColor whiteColor],NSFontAttributeName:[UIFont boldSystemFontOfSize:20]}];

   字体大小、颜色

 NSDictionary *attributes = [NSDictionary dictionaryWithObjectsAndKeys:
                                [UIColor whiteColor],
                                NSForegroundColorAttributeName, nil];
    [self.navigationController.navigationBar setTitleTextAttributes:attributes];

进入横屏

-(BOOL) shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation {
    return (toInterfaceOrientation == UIInterfaceOrientationLandscapeRight);
}

-(NSUInteger)supportedInterfaceOrientations {
    return UIInterfaceOrientationMaskLandscapeRight;
}

  汉字转拼音

    NSMutableString *mutableString = [NSMutableString stringWithString:person.name];
   CFStringTransform((CFMutableStringRef)mutableString, NULL, kCFStringTransformToLatin, false);
    mutableString = (NSMutableString *)[mutableString stringByFoldingWithOptions:NSDiacriticInsensitiveSearch locale:[NSLocale currentLocale]];

pt: point

px: 像素

pt 和 px 的转换

1.3g 3gs: 1px = 1pt

2.4s, 5, 5s, 5c, 6, 6s  1pt = 2px

3.6plus, 6s plus  1pt = 3px

      添加边框 切圆角

 

        text.layer.cornerRadius = 5;

        text.layer.masksToBounds = YES;

         text.layer.borderWidth = 1;

        text.layer.borderColor = [UIColor blueColor].CGColor;

        text.borderStyle = UITextBorderStyleRoundedRect;

 

        点击按钮高亮 

    _button.showsTouchWhenHighlighted = YES;

 

KVC方法修改textField的placeholder颜色

textField.placeholder = @"username is in here!";  
[textField setValue:[UIColor redColor] forKeyPath:@"_placeholderLabel.textColor"];  
[textField setValue:[UIFont boldSystemFontOfSize:16] forKeyPath:@"_placeholderLabel.font"];