IOS view border Simple practices, ios view border

IOS view border Simple practices, ios view border

When we draw the UI interface, we usually use layer as the border, and then add a shadow or something to it. I prefer to use the following method,

The UI gets several border images and uses code to stretch the image.

-(UIImage *) changeBorderImage :( UIImage *) borderImage {UIImage * image = borderImage; CGFloat top = 2; // top cover height CGFloat bottom = 2; // bottom end cover height CGFloat left = 2; // left End Cover width CGFloat right = 2; // right End Cover width UIEdgeInsets insets = UIEdgeInsetsMake (top, left, bottom, right ); // specify the stretch mode. after scaling, assign image = [image resizableImageWithCapInsets: insets resizingMode: UIImageResizingModeStretch]; return image ;}

You can customize a border view or add a UIImageView with a stretched UIImage under your view.

All code:

BorderView. h

//// BorderView. h // border_creat /// Created by Tan qihong on 15/12/15. // Copyright©2015 tan qihong. all rights reserved. // # import <UIKit/UIKit. h> @ interface BorderView: UIImageView @ property (nonatomic, strong) UIImage * borderImage;-(instancetype) initWithFrame :( CGRect) frame borderImage :( UIImage *) borderImage; @ end

BorderView. m

//// BorderView. m // border_creat /// Created by Tan qihong on 15/12/15. // Copyright©2015 tan qihong. all rights reserved. // # import "BorderView. h "@ implementation BorderView-(instancetype) initWithFrame :( CGRect) frame borderImage :( UIImage *) borderImage {self = [super initWithFrame: frame]; if (self) {self. image = [self changeBorderImage: borderImage];} return self;}-(void) setBorderImage :( UIImage *) borderImage {self. borderImage = [self changeBorderImage: borderImage];}-(UIImage *) changeBorderImage :( UIImage *) borderImage {UIImage * image = borderImage; CGFloat top = 2; // top cover height CGFloat bottom = 2; // bottom end cover height CGFloat left = 2; // left End Cover width CGFloat right = 2; // width of the right end cover UIEdgeInsets insets = UIEdgeInsetsMake (top, left, bottom, right); // specify the stretch mode and assign the image = [image resizableImageWithCapInsets: insets resizingMode: UIImageResizingModeStretch]; return image;} @ end

ViewController. m

- (void)viewDidLoad {    [super viewDidLoad];    self.view.backgroundColor = [UIColor whiteColor];    BorderView *borderView = [[BorderView alloc]initWithFrame:CGRectMake(100, 100, 100, 50) borderImage:[UIImage imageNamed:@"tool_biankuang2"]];    [self.view addSubview:borderView];            BorderView *borderView1 = [[BorderView alloc]initWithFrame:CGRectMake(100, 200, 150, 100) borderImage:[UIImage imageNamed:@"tool_biankuang2"]];    [self.view addSubview:borderView1];        BorderView *borderView2 = [[BorderView alloc]initWithFrame:CGRectMake(100, 350, 30, 100) borderImage:[UIImage imageNamed:@"tool_biankuang"]];    [self.view addSubview:borderView2];    }

:

Demo address: http://pan.baidu.com/s/1dEpedBr

Tips