iOS密码框的实现方式

说一下密码加密的实现方式

 

效果图：

 

 

 

 

 

实现方式：

 

主要说一下密码框的实现，这个密码框中间的四个数字其实是4个 UITextField ，然后通过键盘删除键 和TextFiled 的协议shouldChangeCharactersInRange.来判断输入的位置，代码如下；

 

 

 

直接上代码：

 

//
//  IDSGameRoomSecretView.h
//
//  Created by levi.duan on 2017/7/18.
//  Copyright © 2017年 Near. All rights reserved.
//

#import <UIKit/UIKit.h>
#import "BaseViewController.h"

typedefvoid(^handleInputPasswordBlock)(NSString *password);

@interface IDSGameRoomSecretView : UIView

- (instancetype)initWithPasswordCallBack:(handleInputPasswordBlock)passwordCallback;

/**
 弹出说明视图
 */
- (void)showInputSecretView;

@end

 

 

 

 

 

 

//
//  IDSGameRoomSecretView.m
//  Near
//
//  Created by levi.duan on 2017/7/18.
//  Copyright © 2017年 Near. All rights reserved.
//

#import "IDSGameRoomSecretView.h"
#import "PZXVerificationTextField.h"

@interfaceIDSGameRoomSecretView()<UIGestureRecognizerDelegate,UITextFieldDelegate,PZXTextFieldDelegate>

@property (nonatomic,strong) UILabel *titleLabel;
@property (nonatomic,strong) UILabel *subtitleLabel;
@property (nonatomic,strong) UITextField *secretTextField;
@property (nonatomic,strong) UIButton *gameRoomBtn;
@property (nonatomic, strong) UIView *secretRoomView;
@property (nonatomic, strong) NSMutableArray *textFieldArray;
@property (nonatomic , copy) handleInputPasswordBlock onHandlePasswordCallBack;

@end

@implementation IDSGameRoomSecretView

- (instancetype)initWithPasswordCallBack:(handleInputPasswordBlock)passwordCallback
{
    if (self = [superinit]) {
        self.onHandlePasswordCallBack = passwordCallback;
    }
   
    returnself;
}

- (void)showInputSecretView
{

    self.backgroundColor = [UIColorcolorWithRed:0green:0blue:0alpha:0.7];

    [[AppDelegatemainWindow] addSubview:self];
    [self.inputViewbecomeFirstResponder];
   
    self.frame = CGRectMake(0, 0, SCREEN_WIDTH, SCREEN_HEIGHT);
   
    UITapGestureRecognizer *selfRecognizer = [[UITapGestureRecognizeralloc] initWithTarget:selfaction:@selector(removeView)];
    self.userInteractionEnabled = YES;
    [selfaddGestureRecognizer:selfRecognizer];
    selfRecognizer.delegate = self;
   
    self.secretRoomView = [[UIViewalloc] initWithFrame:CGRectMake(0, 0, 510/2, 380/2)];
    self.secretRoomView.centerY = SCREEN_HEIGHT/2;
    self.secretRoomView.centerX = SCREEN_WIDTH/2;
    self.secretRoomView.backgroundColor = [UIColorwhiteColor];
   
    self.secretRoomView.centerY = SCREEN_HEIGHT/2-50;
 
   

    _titleLabel = [[UILabelalloc] initWithFrame:CGRectMake(0, 50/2, 0, 0)];
    _titleLabel.text = @"房间已加锁";
    _titleLabel.textColor = NF_Color_C3;
    _titleLabel.font = [UIFontsystemFontOfSize:Near_Final_Font_T6];
    [_titleLabelsizeToFit];
    _titleLabel.centerX = self.secretRoomView.frame.size.width/2;
    [self.secretRoomViewaddSubview:_titleLabel];
   
    _subtitleLabel = [[UILabelalloc] initWithFrame:CGRectMake(0,CGRectGetMaxY(self.titleLabel.frame)+10, 0, 0)];
    _subtitleLabel.text = @"输入房间密码";
    _subtitleLabel.textColor = NF_Color_C10;
    _subtitleLabel.font = [UIFontsystemFontOfSize:Near_Final_Font_T9];
    [_subtitleLabelsizeToFit];
    _subtitleLabel.centerX = self.secretRoomView.frame.size.width/2;
    [self.secretRoomViewaddSubview:_subtitleLabel];
   
    self.textFieldArray = [NSMutableArrayarray];
    NSArray *views = [selfsubviews];
    for (UITextField *tf in views) {
        [tf removeFromSuperview];
    }
   
    for (int i=0;i<4;++i) {
        PZXVerificationTextField *tf = [[PZXVerificationTextFieldalloc] initWithFrame:CGRectMake(70/2+i*70/2+15*i, CGRectGetMaxY(self.subtitleLabel.frame)+15, 70/2, 70/2)];
        [tf setFont:[UIFontsystemFontOfSize:Near_Final_Font_T5]];
        [tf setTextColor:NF_Color_C4];
        tf.backgroundColor = [UIColorclearColor];
        tf.layer.borderWidth = 0.5;
        tf.layer.borderColor = NF_Color_C9.CGColor;
        tf.layer.cornerRadius = 5.f;
        tf.layer.masksToBounds = YES;
        tf.tintColor =[UIColorclearColor];
        tf.tag = 100+i;
        tf.keyboardType = UIKeyboardTypeNumberPad;
        tf.textAlignment = NSTextAlignmentCenter;
        tf.delegate = self;
        tf.pzx_delegate = self;
        [self.secretRoomViewaddSubview:tf];
        [self.textFieldArraycl_addObject:tf];
        [tf becomeFirstResponder];
    }
   
    self.gameRoomBtn = [[UIButtonalloc] initWithFrame:CGRectMake(0, 270/2, 228/2, 68/2)];
    self.gameRoomBtn.centerX = self.secretRoomView.frame.size.width/2;
   
    [self.gameRoomBtnsetTitle:@"确定"forState:UIControlStateNormal];
    [self.gameRoomBtn.titleLabelsetFont:[UIFontsystemFontOfSize:Near_Final_Font_T5]];
    [self.gameRoomBtn.titleLabelsetTextColor:NF_Color_C1];
    self.gameRoomBtn.backgroundColor = NF_Color_C27;
    [self.gameRoomBtnaddTarget:selfaction:@selector(interRoomVoid) forControlEvents:UIControlEventTouchUpInside];
    self.gameRoomBtn.layer.cornerRadius = 5.0f;
    self.gameRoomBtn.layer.masksToBounds = YES;
   
    [self.secretRoomViewaddSubview:self.gameRoomBtn];
   
    [selfaddSubview:self.secretRoomView];
   
    self.secretRoomView.layer.cornerRadius = 10.f;
    self.secretRoomView.layer.masksToBounds = YES;
   
   
}

#pragma mark - Public Methods

/*
- (void)showDalog
{
    [[AppDelegate mainWindow] addSubview:self];
    [self.inputView becomeFirstResponder];
}
 */

- (void)removeView
{
    [selfremoveFromSuperview];
}

-(BOOL)textField:(UITextField *)textField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString *)string{
   
    textField.text = string;
   
    if (textField.text.length > 0) {//防止退格第一个的时候往后跳一格
       
        if (textField.tag<  [[_textFieldArraylastObject] tag]) {
           
            UITextField *newTF =  (UITextField *)[selfviewWithTag:textField.tag+1];
           
            [newTF becomeFirstResponder];
        }
    }
    returnNO;
}

//点击退格键的代理
#pragma mark - PZXTextFieldDelegate
-(void)PZXTextFieldDeleteBackward:(PZXVerificationTextField *)textField{
   
    if (textField.tag > [[_textFieldArrayfirstObject] tag]) {
       
        UITextField *newTF =  (UITextField *)[selfviewWithTag:textField.tag-1];
        newTF.text = @"";
        [newTF becomeFirstResponder];
    }
   
   
}

- (void)interRoomVoid
{
    [selfgetVertificationCode];
}

-(void)getVertificationCode{ //获取验证码方法
   
    NSString *str = [NSStringstring];
   
    for (int i = 0; i<_textFieldArray.count; i++) {
        str = [str stringByAppendingString:[NSStringstringWithFormat:@"%@",(UITextField *)[_textFieldArray[i] text]]];
    }
    if (self.onHandlePasswordCallBack) {
        self.onHandlePasswordCallBack(str);
    }
    [selfremoveView];
}

-(void)touchesBegan:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event{
   
    for (UITextField *tf inself.textFieldArray) {
       
        [tf resignFirstResponder];
    }
}

- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldReceiveTouch:(UITouch *)touch
{
    if ([touch.viewisDescendantOfView:self.secretRoomView]) {
        returnNO;
    }
    returnYES;
}

@end

 

//
//  PZXVerificationTextField.h
//  Near
//
//  Created by levi.duan on 2017/7/19.
//  Copyright © 2017年 Near. All rights reserved.
//

#import <UIKit/UIKit.h>

@classPZXVerificationTextField;//要class一下不然代理里面无法识别

@protocol PZXTextFieldDelegate <NSObject>

- (void)PZXTextFieldDeleteBackward:(PZXVerificationTextField *)textField;

@end

@interface PZXVerificationTextField : UITextField

@property (nonatomic, assign)id<PZXTextFieldDelegate> pzx_delegate;

@end

 

 

 

//
//  PZXVerificationTextField.m
//  Near
//
//  Created by levi.duan on 2017/7/19.
//  Copyright © 2017年 Near. All rights reserved.
//

#import "PZXVerificationTextField.h"

@implementation PZXVerificationTextField

-(void)deleteBackward{
    [superdeleteBackward];
    if ([self.pzx_delegaterespondsToSelector:@selector(PZXTextFieldDeleteBackward:)]) {
       
        [self.pzx_delegatePZXTextFieldDeleteBackward:self];
    }
   
   
}

@end