數字鍵盤添加自定義按鈕(轉自cocoachina)

原創

陈雪666

2020-02-21 04:19

項目需要對數字鍵盤做個性化設置，網上找了幾個例子，學習了下，然後總結了一下：

數字鍵盤

身份證鍵盤

主要的代碼如下
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.}

示例代碼：