YLSSimplePasswordView

an password input view component for IOS7, it looks like ios7 native screen lock view

Getting Started

import

#import "YLSSimplePasswordView.h"

implement both delegate methods

#pragma mark - YLSSimplePasswordViewDelegate method

-(BOOL) passwordCorrect:(NSString*)input
{
    if([input isEqualToString:@"1111"]){
        return YES;
    }
    return NO;
}

-(void) inputDone
{
    [self.presentingViewController dismissViewControllerAnimated:YES completion:nil];
}

you need to implement both delegate methods:

-(BOOL) passwordCorrect:(NSString*)input

will be invoked after user input 4 characters, the delegate (usually is a UIViewController instance) use this method to tell the View if the code is correct or not

if the return value is YES, then another delegate method

-(void) inputDone

will be called, you decide what to do at this point, for example, maybe close the modal window, or show a message, or insert some data into sqlite database...

if the return value is NO, then the input field will shaked, and ask user to input again

best practise

there is no constraint about how to use this component, you can set it as a root view of a UIViewController, or attach it to another view

also, the ViewController who hold this view, can be presented by modal, or by a NavigationController, as a window or full screen

however, in my opinion, use it as a rootview, and present the viewcontroller as a modal window, looks best. following is how i use it in our app

ScreenLockViewController *screenLockViewController = [[ScreenLockViewController alloc] init];
screenLockViewController.modalPresentationStyle = UIModalPresentationFormSheet;// modal window
        
[self presentViewController:screenLockViewController animated:YES completion:nil];

-(void) loadView
{
    YLSSimplePasswordView *passwordView = [[YLSSimplePasswordView alloc] initWithDelegate:self];
    self.view = passwordView;
}

-(void) viewWillAppear:(BOOL)animated
{
    self.view.superview.backgroundColor = [UIColor clearColor];
}

example

you can see example code in project/example, or run the demo in XCode directly

3rd-lib

this component use SMFrameAdditions to handle subview frame, it's already included. however, also you can fetch it at: https://gist.github.com/nfarina/3412730

notice

in the source code, i set a ViewTag 2323 for internal use, if your app use this number for ViewTag too, it will be an error

no other constraint there, just feel free

customize

the view's frame and color is fixed by default, however you can change it by edit the source code, i think it's quite simple

contact me

welcome to contact me: kyfxbl@gmail.com

your PR or issues would be appreciated