一款非常简单漂亮灵活的自定义数字键盘，可以输入负数，内置了数字验证算法。你不需要在判断输入的小数或者负数是否合法

Usage

UITextField

#import <PGNumberKeyboard/PGNumberKeyboard.h>

self.yourTextField.inputView = [[PGNumberKeyboard alloc]initWithTextField:self.yourTextField];

UITextView

self.yourTextView.inputView = [[PGNumberKeyboard alloc]initWithTextView:self.yourTextView];

Advanced Usage

UITextField

PGNumberKeyboard *keyboard = [[PGNumberKeyboard alloc]initWithTextField:self.yourTextField];
keyboard.delegate = self;
self.yourTextField.inputView = keyboard;

#pragma mark - PGNumberKeyboardManagerDelegate

- (void)editChanage:(id)sender {
}

UITextView

PGNumberKeyboard *keyboard = [[PGNumberKeyboard alloc] initWithTextView:self.yourTextView];
keyboard.delegate = self;
self.yourTextView.inputView = keyboard;

#pragma mark - PGNumberKeyboardManagerDelegate

- (void)editChanage:(id)sender {
}

Overview

http://www.jianshu.com/p/d6455564675e