数字键盘添加自定义按钮

项目需要对数字键盘做个性化设置，网上找了几个例子，学习了下，然后总结了一下：

数字键盘



身份证键盘



主要的代码如下

1.- (void)addButtonToKeyboardWithSelector:(SEL)sel normal:(UIImage*)nimg highlight:(UIImage*)himg{

2. // create custom button

3. UIButton *doneButton = [UIButton buttonWithType:UIButtonTypeCustom];

4. doneButton.tag=8;

5. doneButton.frame = CGRectMake(0, 0, 106, 53);

6. doneButton.adjustsImageWhenHighlighted = NO;

7.

8. [doneButton setImage:nimg forState:UIControlStateNormal];

9. [doneButton setImage:himg forState:UIControlStateHighlighted];

10. [doneButton addTarget:self action:sel forControlEvents:UIControlEventTouchUpInside];

11. // locate keyboard view

12. int cnt=[[UIApplication sharedApplication] windows].count;

13. UIWindow* keyboardWindow = [[[UIApplication sharedApplication] windows] objectAtIndex:cnt-1];

14. doneButton.frame = CGRectMake(0, keyboardWindow.frame.size.height-53, 106, 53);

15. [keyboardWindow addSubview:doneButton];

16.

17. NSLog(@"keyboard:%@ %@ %@",NSStringFromCGRect(keyboardWindow.frame),NSStringFromCGRect(doneButton.frame),keyboardWindow.subviews);

18.}

19.

20.- (void)removeButtonFromKeyboard {

21. // locate keyboard view

22. int cnt=[[UIApplication sharedApplication] windows].count;

23. UIWindow* keyboardWindow = [[[UIApplication sharedApplication] windows] objectAtIndex:cnt-1]; 23.24.[[keyboardWindow viewWithTag:8] removeFromSuperview];

25.}

原帖地址：http://www.cocoachina.com/bbs/read.php?tid=140742