063为文本输入框设置背景图片

效果如下：

ViewController.h

1 #import <UIKit/UIKit.h>

2 

3 @interface ViewController : UIViewController<UITextFieldDelegate>

4 @end

ViewController.m

 1 #import "ViewController.h"

 2 

 3 @interface ViewController ()

 4 - (void)layoutUI;

 5 @end

 6 

 7 @implementation ViewController

 8 

 9 - (void)viewDidLoad {

10     [super viewDidLoad];

11     

12     [self layoutUI];

13 }

14 

15 - (void)didReceiveMemoryWarning {

16     [super didReceiveMemoryWarning];

17     // Dispose of any resources that can be recreated.

18 }

19 

20 #pragma mark - Private Methods

21 - (void)layoutUI {

22     UITextField *txtFMessage = [[UITextField alloc] initWithFrame:CGRectMake(0, 0, 320, 50)];

23     txtFMessage.center = self.view.center;

24     txtFMessage.borderStyle = UITextBorderStyleNone; //默认值是UITextBorderStyleNone

25     txtFMessage.text = @"背景图片，编辑下回车键进入禁用状态";

26     txtFMessage.textColor = [UIColor colorWithRed:0.263 green:1.000 blue:0.246 alpha:1.000];

27     txtFMessage.textAlignment = NSTextAlignmentLeft;

28     txtFMessage.contentHorizontalAlignment = UIControlContentVerticalAlignmentCenter;

29     txtFMessage.font = [UIFont fontWithName:@"Times New Roman" size:17];

30     

31     //设置正常状态和禁用状态下的背景图片，在txtFMessage.borderStyle = UITextBorderStyleRoundedRect时就失效

32     txtFMessage.background = [[UIImage imageNamed:@"Paper"] stretchableImageWithLeftCapWidth:20 topCapHeight:20];

33     txtFMessage.disabledBackground = [[UIImage imageNamed:@"PaperDisabled"] stretchableImageWithLeftCapWidth:20 topCapHeight:20];

34     txtFMessage.delegate = self;

35     

36     [self.view addSubview:txtFMessage];

37 }

38 

39 #pragma mark - TextField

40 - (BOOL)textFieldShouldReturn:(UITextField *)textField {

41     textField.enabled = NO;

42     textField.text = @"文本输入框禁用了";

43     textField.textColor = [UIColor colorWithRed:0.734 green:0.698 blue:0.698 alpha:1.000];

44     return YES;

45 }

46 

47 @end