项目介绍：

下载地址

BNTextField-Limit

限制输入字数

Installation with CocoaPods

edit your podfile

pod ‘BNTextField-Limit’

end

Usage

Creat Textfield

UITextField *testField = [[UITextField alloc] initWithFrame:CGRectMake(0, 0, 100, 40)];

Set limit

[testField limitCondition:^BOOL(NSString *inputStr){
        return ![testField.text isEqualToString:@"111"];
    } action:^{
        NSLog(@"limit action");
}];

Or

[testField limitNums:3 action:^{
    NSLog(@"num limit action");
}];

⚠️WARNNING

if you want to set the delegate , just … set it before setting the limit.