有时候调用苹果手机的系统键盘满足不了现实中的各种需求，因此就需要我们自定义键盘来代替系统原有的键盘
话不多说，直接上代码：
首先代码创建一个输入框或直接在storyboard中拖一个UITextFild来弹出键盘：
_textField = [[UITextField alloc] init];
_textField.frame = CGRectMake(60, 200, 200, 30);
_textField.borderStyle = UITextBorderStyleRoundedRect;
_textField.keyboardType = UIKeyboardTypeDefault;
_textField.autocapitalizationType = UITextAutocapitalizationTypeNone;
_textField.tag = 100;
_textField.returnKeyType = UIReturnKeyNext;
// 自定义键盘
UIImageView *inputView = [self setInputView];
_textField.inputView = inputView;
[self.view addSubview:_textField];
这是用自定义的键盘来覆盖原有的键盘
编辑键盘上的按钮：
#pragma mark - 自定义键盘
- (UIImageView *)setInputView{
UIImageView *imageView = [[UIImageView alloc] init];
imageView.userInteractionEnabled = YES;
imageView.frame = CGRectMake(0, 0, 320, 200);
imageView.backgroundColor = [UIColor grayColor];
// 自定义键盘内容
_emojiArray = @[@"1",@"2",@"3",@"4",@"5",@"6",@"7",@"8",@"9",@"10",@"11",@"12",@"13",@"14",@"15",@"16",@"17"];
CGFloat buttonW = 40;
CGFloat buttonH = 40;
NSInteger numberOfRow = ScreenW / buttonW;//列数
NSInteger numberOfLine = _emojiArray.count / numberOfRow;//行数
if (_emojiArray.count % numberOfRow) {
numberOfLine = numberOfLine + 1;
}
for (int j = 0; j < numberOfLine; j ++) {
for (int i = 0; i < numberOfRow; i ++) {
if (i + j * numberOfRow < _emojiArray.count) {
UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom];
CGFloat X = 5 + 40 * i;
CGFloat Y = 5 + buttonH * j;
button.frame = CGRectMake(X, Y, buttonW, buttonH);
[button addTarget:self action:@selector(inputViewClick:) forControlEvents:UIControlEventTouchUpInside];
button.tag = i + j * numberOfRow;
NSLog(@"button.tag = = = = %ld",button.tag);
[button setTitle:[_emojiArray objectAtIndex:button.tag] forState:UIControlStateNormal];
[imageView addSubview:button];
}
}
}
return imageView;
}
最后实现键盘上的按钮的实现方法：
- (void)inputViewClick:(UIButton *)button{
NSLog(@"%@",_emojiArray[button.tag]);
// 拼接
NSString *str = [NSString stringWithFormat:@"%@%@",_textField.text,_emojiArray[button.tag]];
_textField.text = str;
}
系统的键盘在弹出的状态下，点击屏幕的空白处收回键盘，那就需要加入下面这段代码来结束按钮的编辑状态：
- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event{
[self.view endEditing:YES];
}
效果如图：
原文：http://www.cnblogs.com/h-tao/p/5233803.html