密码锁功能的实现
一个ios手势密码功能实现
ipad/iphone 都可以用
没有使用图片，里面可以通过view自己添加
keychain做的数据持久化，利用苹果官方KeychainItemWrapper类
keychain存储的数据不会因为删除app而清除记录，请调用-(void)clear清除储存密码。
简单使用方式
下载后直接把 GesturePassword 下的GesturePassword文件丢到项目中去
在 TARGETS - Build Phases - "KeychainItemWrapper.m" - Compiler Flags (-fno-objc-arc)
在需要的地方直接可以调用ViewController
第一次的时候会两次验证密码
以后便会以这个密码进行确认
清空密码可以调用 - (void)clear
- (void)verify 验证手势密码在这里
- (void)reset 重置手势密码在这 （第一次回调用到这里进行第一次设置
保存于读取密码：
直接贴代码 KeychainItemWrapper *keychain=[[KeychainItemWrapper alloc] initWithIdentifier:@"xxxxxx" accessGroup:nil];//xxxx 自定义 保存 [keyWrapper setObject:@"myChainValues" forKey:(id)kSecAttrService]; [keyWrapper setObject:[usernameTextField text] forKey:(id)kSecAttrAccount];// 上面两行用来标识一个Item [keyWrapper setObject:[passwordTextField text] forKey:(id)kSecValueData]; 读取 [usernameTextField setText:[keyWrapper objectForKey:(id)kSecAttrAccount]]; [passwordTextField setText:[keyWrapper objectForKey:(id)kSecValueData]]; 另外需要引入Security.framework 和KeychainItemWrapper头文件(百度一下多得是)
下面简单的实现一下
一：我们先导入这个框架
二：新建一个手势密码的View分别在.h和.m文件中实现以下代码
GesturePasswordView.h
@protocol GesturePasswordDelegate <NSObject> - (void)forget; - (void)change; @end #import <UIKit/UIKit.h> #import "TentacleView.h" @interface GesturePasswordView : UIView<TouchBeginDelegate> @property (nonatomic,strong) TentacleView * tentacleView; @property (nonatomic,strong) UILabel * state; @property (nonatomic,assign) id<GesturePasswordDelegate> gesturePasswordDelegate; @property (nonatomic,strong) UIImageView * imgView; @property (nonatomic,strong) UIButton * forgetButton; @property (nonatomic,strong) UIButton * changeButton; @end
GesturePasswordView.m
#import "GesturePasswordView.h"
#import "GesturePasswordButton.h"
#import "TentacleView.h"
@implementation GesturePasswordView {
NSMutableArray * buttonArray;
CGPoint lineStartPoint;
CGPoint lineEndPoint;
}
@synthesize imgView;
@synthesize forgetButton;
@synthesize changeButton;
@synthesize tentacleView;
@synthesize state;
@synthesize gesturePasswordDelegate;
- (id)initWithFrame:(CGRect)frame
{
self = [super initWithFrame:frame];
if (self) {
// Initialization code
buttonArray = [[NSMutableArray alloc]initWithCapacity:];
UIView * view = [[UIView alloc]initWithFrame:CGRectMake(frame.size.width/-, frame.size.height/-, , )];
; i<; i++) {
NSInteger row = i/;
NSInteger col = i%;
// Button Frame
NSInteger distance = /;
NSInteger size = distance/1.5;
NSInteger margin = size/;
GesturePasswordButton * gesturePasswordButton = [[GesturePasswordButton alloc]initWithFrame:CGRectMake(col*distance+margin, row*distance, size, size)];
[gesturePasswordButton setTag:i];
[view addSubview:gesturePasswordButton];
[buttonArray addObject:gesturePasswordButton];
}
frame.origin.y=;
[self addSubview:view];
tentacleView = [[TentacleView alloc]initWithFrame:view.frame];
[tentacleView setButtonArray:buttonArray];
[tentacleView setTouchBeginDelegate:self];
[self addSubview:tentacleView];
state = [[UILabel alloc]initWithFrame:CGRectMake(frame.size.width/-, frame.size.height/-, , )];
[state setTextAlignment:NSTextAlignmentCenter];
[state setFont:[UIFont systemFontOfSize:.f]];
[self addSubview:state];
imgView = [[UIImageView alloc]initWithFrame:CGRectMake(frame.size.width/-, frame.size.width/-, , )];
[imgView setBackgroundColor:[UIColor whiteColor]];
[imgView.layer setCornerRadius:];
[imgView.layer setBorderColor:[UIColor grayColor].CGColor];
[imgView.layer setBorderWidth:];
[self addSubview:imgView];
forgetButton = [[UIButton alloc]initWithFrame:CGRectMake(frame.size.width/-, frame.size.height/+, , )];
[forgetButton.titleLabel setFont:[UIFont systemFontOfSize:]];
[forgetButton setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal];
[forgetButton setTitle:@"忘记手势密码" forState:UIControlStateNormal];
[forgetButton addTarget:self action:@selector(forget) forControlEvents:UIControlEventTouchDown];
[self addSubview:forgetButton];
changeButton = [[UIButton alloc]initWithFrame:CGRectMake(frame.size.width/+, frame.size.height/+, , )];
[changeButton.titleLabel setFont:[UIFont systemFontOfSize:]];
[changeButton setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal];
[changeButton setTitle:@"修改手势密码" forState:UIControlStateNormal];
[changeButton addTarget:self action:@selector(change) forControlEvents:UIControlEventTouchDown];
[self addSubview:changeButton];
}
return self;
}
// Only override drawRect: if you perform custom drawing.
// An empty implementation adversely affects performance during animation.
- (void)drawRect:(CGRect)rect
{
// Drawing code
CGContextRef context = UIGraphicsGetCurrentContext();
CGColorSpaceRef rgb = CGColorSpaceCreateDeviceRGB();
CGFloat colors[] =
{
/ / / 255.0, 1.00,
/ / / 255.0, 1.00,
};
CGGradientRef gradient = CGGradientCreateWithColorComponents
(rgb, colors, NULL, ])*));
CGColorSpaceRelease(rgb);
CGContextDrawLinearGradient(context, gradient,CGPointMake
(0.0,0.0) ,CGPointMake(0.0,self.frame.size.height),
kCGGradientDrawsBeforeStartLocation);
}
- (void)gestureTouchBegin {
[self.state setText:@""];
}
-(void)forget{
[gesturePasswordDelegate forget];
}
-(void)change{
[gesturePasswordDelegate change];
}
@end
三：再自定义一个View用于实现界面的布局与处理
TentacleView.h
#import <UIKit/UIKit.h> @protocol ResetDelegate <NSObject> - (BOOL)resetPassword:(NSString *)result; @end @protocol VerificationDelegate <NSObject> - (BOOL)verification:(NSString *)result; @end @protocol TouchBeginDelegate <NSObject> - (void)gestureTouchBegin; @end @interface TentacleView : UIView @property (nonatomic,strong) NSArray * buttonArray; @property (nonatomic,assign) id<VerificationDelegate> rerificationDelegate; @property (nonatomic,assign) id<ResetDelegate> resetDelegate; @property (nonatomic,assign) id<TouchBeginDelegate> touchBeginDelegate; /* 1: Verify 2: Reset */ @property (nonatomic,assign) NSInteger style; - (void)enterArgin; @end
TentacleView.m
#import "TentacleView.h"
#import "GesturePasswordButton.h"
@implementation TentacleView {
CGPoint lineStartPoint;
CGPoint lineEndPoint;
NSMutableArray * touchesArray;
NSMutableArray * touchedArray;
BOOL success;
}
@synthesize buttonArray;
@synthesize rerificationDelegate;
@synthesize resetDelegate;
@synthesize touchBeginDelegate;
@synthesize style;
- (id)initWithFrame:(CGRect)frame
{
self = [super initWithFrame:frame];
if (self) {
// Initialization code
touchesArray = [[NSMutableArray alloc]initWithCapacity:];
touchedArray = [[NSMutableArray alloc]initWithCapacity:];
[self setBackgroundColor:[UIColor clearColor]];
[self setUserInteractionEnabled:YES];
success = ;
}
return self;
}
- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event{
CGPoint touchPoint;
UITouch *touch = [touches anyObject];
[touchesArray removeAllObjects];
[touchedArray removeAllObjects];
[touchBeginDelegate gestureTouchBegin];
success=;
if (touch) {
touchPoint = [touch locationInView:self];
; i<buttonArray.count; i++) {
GesturePasswordButton * buttonTemp = ((GesturePasswordButton *)[buttonArray objectAtIndex:i]);
[buttonTemp setSuccess:YES];
[buttonTemp setSelected:NO];
if (CGRectContainsPoint(buttonTemp.frame,touchPoint)) {
CGRect frameTemp = buttonTemp.frame;
CGPoint point = CGPointMake(frameTemp.origin.x+frameTemp.size.width/,frameTemp.origin.y+frameTemp.size.height/);
NSDictionary * dict = [NSDictionary dictionaryWithObjectsAndKeys:[NSString stringWithFormat:@"%f",point.x],@"x",[NSString stringWithFormat:@"%f",point.y],@"y", nil];
[touchesArray addObject:dict];
lineStartPoint = touchPoint;
}
[buttonTemp setNeedsDisplay];
}
[self setNeedsDisplay];
}
}
- (void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event{
CGPoint touchPoint;
UITouch *touch = [touches anyObject];
if (touch) {
touchPoint = [touch locationInView:self];
; i<buttonArray.count; i++) {
GesturePasswordButton * buttonTemp = ((GesturePasswordButton *)[buttonArray objectAtIndex:i]);
if (CGRectContainsPoint(buttonTemp.frame,touchPoint)) {
if ([touchedArray containsObject:[NSString stringWithFormat:@"num%d",i]]) {
lineEndPoint = touchPoint;
[self setNeedsDisplay];
return;
}
[touchedArray addObject:[NSString stringWithFormat:@"num%d",i]];
[buttonTemp setSelected:YES];
[buttonTemp setNeedsDisplay];
CGRect frameTemp = buttonTemp.frame;
CGPoint point = CGPointMake(frameTemp.origin.x+frameTemp.size.width/,frameTemp.origin.y+frameTemp.size.height/);
NSDictionary * dict = [NSDictionary dictionaryWithObjectsAndKeys:[NSString stringWithFormat:@"%f",point.x],@"x",[NSString stringWithFormat:@"%f",point.y],@"y",[NSString stringWithFormat:@"%d",i],@"num", nil];
[touchesArray addObject:dict];
break;
}
}
lineEndPoint = touchPoint;
[self setNeedsDisplay];
}
}
- (void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event{
NSMutableString * resultString=[NSMutableString string];
for ( NSDictionary * num in touchesArray ){
if(![num objectForKey:@"num"])break;
[resultString appendString:[num objectForKey:@"num"]];
}
){
success = [rerificationDelegate verification:resultString];
}
else {
success = [resetDelegate resetPassword:resultString];
}
; i<touchesArray.count; i++) {
NSInteger selection = [[[touchesArray objectAtIndex:i] objectForKey:@"num"]intValue];
GesturePasswordButton * buttonTemp = ((GesturePasswordButton *)[buttonArray objectAtIndex:selection]);
[buttonTemp setSuccess:success];
[buttonTemp setNeedsDisplay];
}
[self setNeedsDisplay];
}
// Only override drawRect: if you perform custom drawing.
// An empty implementation adversely affects performance during animation.
- (void)drawRect:(CGRect)rect
{
// Drawing code
// if (touchesArray.count<2)return;
; i<touchesArray.count; i++) {
CGContextRef context = UIGraphicsGetCurrentContext();
if (![[touchesArray objectAtIndex:i] objectForKey:@"num"]) { //防止过快滑动产生垃圾数据
[touchesArray removeObjectAtIndex:i];
continue;
}
if (success) {
CGContextSetRGBStrokeColor(context, /.f, /.f, /.f, 0.7);//线条颜色
}
else {
CGContextSetRGBStrokeColor(context, /.f, /.f, /.f, 0.7);//红色
}
CGContextSetLineWidth(context,);
CGContextMoveToPoint(context, [[[touchesArray objectAtIndex:i] objectForKey:@"x"] floatValue], [[[touchesArray objectAtIndex:i] objectForKey:@"y"] floatValue]);
) {
CGContextAddLineToPoint(context, [[[touchesArray objectAtIndex:i+] objectForKey:] objectForKey:@"y"] floatValue]);
}
else{
if (success) {
CGContextAddLineToPoint(context, lineEndPoint.x,lineEndPoint.y);
}
}
CGContextStrokePath(context);
}
}
- (void)enterArgin {
[touchesArray removeAllObjects];
[touchedArray removeAllObjects];
; i<buttonArray.count; i++) {
GesturePasswordButton * buttonTemp = ((GesturePasswordButton *)[buttonArray objectAtIndex:i]);
[buttonTemp setSelected:NO];
[buttonTemp setSuccess:YES];
[buttonTemp setNeedsDisplay];
}
[self setNeedsDisplay];
}
四：自定义一个密码按钮的View
GesturePasswordButton.h
#import <UIKit/UIKit.h> @interface GesturePasswordButton : UIView @property (nonatomic,assign) BOOL selected; @property (nonatomic,assign) BOOL success; @end
GesturePasswordButton.m
#import "GesturePasswordButton.h"
#define bounds self.bounds
@implementation GesturePasswordButton
@synthesize selected;
@synthesize success;
- (id)initWithFrame:(CGRect)frame
{
self = [super initWithFrame:frame];
if (self) {
// Initialization code
success=YES;
[self setBackgroundColor:[UIColor clearColor]];
}
return self;
}
// Only override drawRect: if you perform custom drawing.
// An empty implementation adversely affects performance during animation.
- (void)drawRect:(CGRect)rect
{
// Drawing code
CGContextRef context = UIGraphicsGetCurrentContext();
if (selected) {
if (success) {
CGContextSetRGBStrokeColor(context, /.f, /.f, /.f,);//线条颜色
CGContextSetRGBFillColor(context,/.f, /.f, /.f,);
}
else {
CGContextSetRGBStrokeColor(context, /.f, /.f, /.f,);//线条颜色
CGContextSetRGBFillColor(context,/.f, /.f, /.f,);
}
CGRect frame = CGRectMake(bounds.size.width/-bounds.size.width/+, bounds.size.height/-bounds.size.height/, bounds.size.width/, bounds.size.height/);
CGContextAddEllipseInRect(context,frame);
CGContextFillPath(context);
}
else{
CGContextSetRGBStrokeColor(context, ,,,);//线条颜色
}
CGContextSetLineWidth(context,);
CGRect frame = CGRectMake(, , bounds.size.width-, bounds.size.height-);
CGContextAddEllipseInRect(context,frame);
CGContextStrokePath(context);
if (success) {
CGContextSetRGBFillColor(context,/.f, /.f, /.f,0.3);
}
else {
CGContextSetRGBFillColor(context,/.f, /.f, /.f,0.3);
}
CGContextAddEllipseInRect(context,frame);
if (selected) {
CGContextFillPath(context);
}
}
@end
五：前面的步骤都准备好了之后，我们就需要在控制器里面实现相应的代码
GesturePasswordController.h
#import <UIKit/UIKit.h> #import "TentacleView.h" #import "GesturePasswordView.h" @interface GesturePasswordController : UIViewController <VerificationDelegate,ResetDelegate,GesturePasswordDelegate> - (void)clear; - (BOOL)exist; @end
GesturePasswordController.m
#import <Security/Security.h>
#import <CoreFoundation/CoreFoundation.h>
#import "GesturePasswordController.h"
#import "KeychainItemWrapper/KeychainItemWrapper.h"
@interface GesturePasswordController ()
@property (nonatomic,strong) GesturePasswordView * gesturePasswordView;
@end
@implementation GesturePasswordController {
NSString * previousString;
NSString * password;
}
@synthesize gesturePasswordView;
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
// Custom initialization
}
return self;
}
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view.
previousString = [NSString string];
KeychainItemWrapper * keychin = [[KeychainItemWrapper alloc]initWithIdentifier:@"Gesture" accessGroup:nil];
password = [keychin objectForKey:(__bridge id)kSecValueData];
if ([password isEqualToString:@""]) {
[self reset];
}
else {
[self verify];
}
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
#pragma mark - 验证手势密码
- (void)verify{
gesturePasswordView = [[GesturePasswordView alloc]initWithFrame:[UIScreen mainScreen].bounds];
[gesturePasswordView.tentacleView setRerificationDelegate:self];
[gesturePasswordView.tentacleView setStyle:];
[gesturePasswordView setGesturePasswordDelegate:self];
[self.view addSubview:gesturePasswordView];
}
#pragma mark - 重置手势密码
- (void)reset{
gesturePasswordView = [[GesturePasswordView alloc]initWithFrame:[UIScreen mainScreen].bounds];
[gesturePasswordView.tentacleView setResetDelegate:self];
[gesturePasswordView.tentacleView setStyle:];
// [gesturePasswordView.imgView setHidden:YES];
[gesturePasswordView.forgetButton setHidden:YES];
[gesturePasswordView.changeButton setHidden:YES];
[self.view addSubview:gesturePasswordView];
}
#pragma mark - 判断是否已存在手势密码
- (BOOL)exist{
KeychainItemWrapper * keychin = [[KeychainItemWrapper alloc]initWithIdentifier:@"Gesture" accessGroup:nil];
password = [keychin objectForKey:(__bridge id)kSecValueData];
if ([password isEqualToString:@""])return NO;
return YES;
}
#pragma mark - 清空记录
- (void)clear{
KeychainItemWrapper * keychin = [[KeychainItemWrapper alloc]initWithIdentifier:@"Gesture" accessGroup:nil];
[keychin resetKeychainItem];
}
#pragma mark - 改变手势密码
- (void)change{
}
#pragma mark - 忘记手势密码
- (void)forget{
}
- (BOOL)verification:(NSString *)result{
if ([result isEqualToString:password]) {
[gesturePasswordView.state setTextColor:[UIColor colorWithRed:/.f green:/.f blue:/.f alpha:]];
[gesturePasswordView.state setText:@"输入正确"];
//[self presentViewController:(UIViewController) animated:YES completion:nil];
return YES;
}
[gesturePasswordView.state setTextColor:[UIColor redColor]];
[gesturePasswordView.state setText:@"手势密码错误"];
return NO;
}
- (BOOL)resetPassword:(NSString *)result{
if ([previousString isEqualToString:@""]) {
previousString=result;
[gesturePasswordView.tentacleView enterArgin];
[gesturePasswordView.state setTextColor:[UIColor colorWithRed:/.f green:/.f blue:/.f alpha:]];
[gesturePasswordView.state setText:@"请验证输入密码"];
return YES;
}
else {
if ([result isEqualToString:previousString]) {
KeychainItemWrapper * keychin = [[KeychainItemWrapper alloc]initWithIdentifier:@"Gesture" accessGroup:nil];
[keychin setObject:@"<帐号>" forKey:(__bridge id)kSecAttrAccount];
[keychin setObject:result forKey:(__bridge id)kSecValueData];
//[self presentViewController:(UIViewController) animated:YES completion:nil];
[gesturePasswordView.state setTextColor:[UIColor colorWithRed:/.f green:/.f blue:/.f alpha:]];
[gesturePasswordView.state setText:@"已保存手势密码"];
return YES;
}
else{
previousString =@"";
[gesturePasswordView.state setTextColor:[UIColor redColor]];
[gesturePasswordView.state setText:@"两次密码不一致，请重新输入"];
return NO;
}
}
}
/*
#pragma mark - Navigation
// In a storyboard-based application, you will often want to do a little preparation before navigation
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
// Get the new view controller using [segue destinationViewController].
// Pass the selected object to the new view controller.
}
*/
六：最终运行效果如下