随机变换数字位置的密码键盘。 模仿银行类应用在付款时输入的随机密码键盘。
1.将UIViewExtension与CustomKeyboard文件导入项目。
2.导入自定义键盘头文件
#import "LVKeyboardView.h"3.需要两个属性
@property (nonatomic, strong) LVKeyboardView *keyboard;
@property (nonatomic, strong) NSMutableString *passWord;4.设置需要输入密码的textField
self.textField.inputAccessoryView = [[LVKeyboardAccessoryBtn alloc] init];
self.textField.inputView = self.keyboard;
self.textField.delegate = self;5.添加以下代码实现输入功能
/***************需要*************/
- (BOOL)textFieldShouldBeginEditing:(UITextField *)textField {
self.textField.text = nil;
self.passWord = nil;
CGFloat x = 0;
CGFloat y = self.view.height - 216;
CGFloat w = self.view.width;
CGFloat h = 216;
self.keyboard = [[LVKeyboardView alloc] initWithFrame:CGRectMake(x, y, w, h)];
self.keyboard.delegate = self;
self.textField.inputView = _keyboard;
return YES;
}
#pragma mark - LVKeyboardDelegate
- (void)keyboard:(LVKeyboardView *)keyboard didClickButton:(UIButton *)button {
if (self.passWord.length > 5) return;
[self.passWord appendString:button.currentTitle];
self.textField.text = self.passWord;
}
- (void)keyboard:(LVKeyboardView *)keyboard didClickDeleteBtn:(UIButton *)deleteBtn {
NSUInteger loc = self.passWord.length;
if (loc == 0) return;
NSRange range = NSMakeRange(loc - 1, 1);
[self.passWord deleteCharactersInRange:range];
self.textField.text = self.passWord;
}
#pragma mark - 需要
- (NSMutableString *)passWord {
if (!_passWord) {
_passWord = [NSMutableString stringWithCapacity:6];
}
return _passWord;
}
#pragma mark - 如果不需要随机变换数字需要
//- (LVKeyboardView *)keyboard {
// if (!_keyboard) {
// CGFloat x = 0;
// CGFloat y = self.view.height - 216;
// CGFloat w = self.view.width;
// CGFloat h = 216;
// _keyboard = [[LVKeyboardView alloc] initWithFrame:CGRectMake(x, y, w, h)];
// _keyboard.delegate = self;
// }
// return _keyboard;
//}
/***************结束*************/
- 如果在使用过程中遇到BUG，希望你能Issues我，谢谢！