手势密码源码

//
//  WPSignPasswordView.h
//  网投网
//
//  Created by wangtouwang on 15/4/9.
//  Copyright (c) 2015年 wangtouwang. All rights reserved.
//

#import <UIKit/UIKit.h>

@class  WPSignPasswordView;
@protocol WPSignPasswordDelegate <NSObject>

//设置密码 确认成功
@required
-(void)setPawSuccess:(NSString *)password;
//设置第一次临时密码成功
@required
-(void)setFirstPasswordSuccess:(NSString *)password;
//第二次输入确认密码错误
-(void)setTwoPasswordError;
//修改手势密码 请输入之前的密码
-(void)setSuccessAfterFirstPS:(NSString *)password;
//进入程序后输入手势密码判断是否正确
-(void)confirmPassword:(NSString *)password;
//手势密码进入修改状态(即原密码输入成功) 首次输入
-(void)updateSPFirst:(NSString *)password;
//手势密码进入修改状态(即原密码输入成功) 二次输入,相当于输入密码确认
-(void)updateSPConfirm:(NSString *)password;

@end

#pragma mark 手势密码View
@interface WPSignPasswordView : UIView


//设置代理
@property(nonatomic,strong) id<WPSignPasswordDelegate> spDelegate;

@end

//
//  WPSignPasswordView.m
//  网投网
//
//  Created by wangtouwang on 15/4/9.
//  Copyright (c) 2015年 wangtouwang. All rights reserved.
//

#import "WPSignPasswordView.h"


//屏幕的长宽
#define KSCREEN_WIDTH [UIScreen mainScreen].bounds.size.width
#define KSCREEN_HEIGHT [UIScreen mainScreen].bounds.size.height



@interface WPSignPasswordView()
{
    
}

@property(nonatomic,strong) NSMutableArray *stringArrays;
@property(nonatomic,strong) NSMutableArray *allButtonsArray;
//定义一个属性，记录当前点
@property(nonatomic,assign)CGPoint currentPoint;

@end

@implementation WPSignPasswordView


#pragma mark 实例化收集字符串的数组 并且用懒加载
-(NSMutableArray *)getStringArrays{
    if (self.stringArrays==nil) {
        self.stringArrays = [NSMutableArray array];
    }
    return  self.stringArrays;
}

#pragma mark 实例化包含所有密码按钮的数组 并且用懒加载
-(NSMutableArray *)getAllButtonsArray{
    if (self.allButtonsArray==nil) {
        self.allButtonsArray = [NSMutableArray array];
    }
    return self.allButtonsArray;
}

#pragma mark 复写初始化界面函数 initFrame
-(instancetype)initWithFrame:(CGRect)frame{
    self = [super initWithFrame:frame];
    if (self) {
        [self setup];
    }
    return self;
}

#pragma mark 界面布局
-(void)setup{
    //NSLog(@"初始化界面布局执行的");
    for (int index=1; index<=9; index++) {
        //创建按钮
        UIButton *numberButton = [[UIButton alloc] init];
        //设置按钮的背景图片,并且设置是在何种状态下
        [numberButton setBackgroundImage:[UIImage imageNamed:@"gesture_node_normal"] forState:UIControlStateNormal];
        [numberButton setBackgroundImage:[UIImage imageNamed:@"gesture_node_highlighted"] forState:UIControlStateSelected];
        //将按钮添加到视图中
        [self addSubview:numberButton];
        //将按钮存储到按钮数组中
        [[self getAllButtonsArray] addObject:numberButton];
        //禁止按钮点击事件
        numberButton.userInteractionEnabled=NO;
        //设置按钮标志值
        numberButton.tag=index;
        
    }
}

#pragma mark 看看何时触发
-(void)layoutSubviews{
    //需要先调用父类的方法
    [super layoutSubviews];
    //设置按钮位置
    for (int index=0; index<self.allButtonsArray.count; index++) {
        CGFloat inverst_top = KSCREEN_HEIGHT/4;
        inverst_top=0;
        UIButton *btn =(UIButton *) self.allButtonsArray[index];
        //NSLog(@"%i",btn.tag);
        //获取行号
        CGFloat row = index/3;
        //获取坐标号
        CGFloat loc = index%3;
        // 按钮长跟宽
        CGFloat  btnHeight = 75;
        CGFloat  btnWith=btnHeight;
        //获取按钮间隔距离
        CGFloat inverst = (KSCREEN_WIDTH-btnHeight*3)/4;
        //X Y 坐标
        CGFloat btnX = inverst +loc*(btnWith+inverst);
        CGFloat btnY = inverst + row*(btnHeight+inverst);
        btn.frame=CGRectMake(btnX, btnY+inverst_top-15, btnHeight, btnHeight);
    }
}


#pragma mark 复写画布布局
- (void)drawRect:(CGRect)rect {
    //NSLog(@"再次触发吗");
    //获取上下文
    CGContextRef context = UIGraphicsGetCurrentContext();
#pragma mark 填充画布颜色
    //填充上下文颜色
    CGContextSetFillColorWithColor(context, [[UIColor grayColor] CGColor]);
    //补充当前填充颜色的rect
    CGContextFillRect(context, rect);
#pragma mark -实现画线功能
    int i =0;
    //绘图（线段）
    for (UIButton *btn in self.stringArrays) {
        if (0==i) {
            //设置起点（注意连接的是中点）
            CGContextMoveToPoint(context, btn.center.x, btn.center.y);
        }else{
            CGContextAddLineToPoint(context, btn.center.x, btn.center.y);
        }
        i++;
    }
    //当所有按钮的中点都连接好之后，再连接手指当前的位置
    //判断数组中是否有按钮，只有有按钮的时候才绘制
    if (self.stringArrays.count !=0) {
        //画直线
        CGContextAddLineToPoint(context, self.currentPoint.x, self.currentPoint.y);
    }
    //渲染
    //设置线条的宽度
    CGContextSetLineWidth(context, 10);
    //设置图像上下文中的接接线的样式。
    CGContextSetLineJoin(context, kCGLineJoinRound);
    //设置线条终点形状
    CGContextSetLineCap(context, kCGLineCapRound);
    //画笔颜色设置
    CGContextSetRGBStrokeColor(context, 255/255.0, 100/255.0, 0/255.0, 1);
    //开始绘制图片
    CGContextStrokePath(context);
}

#pragma mark 复写 UIResponder--API 监听手指移动开始
-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event{
    UITouch *uitouch = [touches anyObject];
    CGPoint point =  [uitouch locationInView:uitouch.view];
    UIButton *targetBtn = nil;
    for (UIButton *btn in self.allButtonsArray ) {
        if (CGRectContainsPoint(btn.frame, point)) {
            targetBtn = btn;
            break;
        }
    }
    if (targetBtn&&targetBtn.selected!=YES) {
        targetBtn.selected=YES;
        [[self getStringArrays] addObject:targetBtn];
    }
}

#pragma mark 复写 UIResponder--API 监听手指移动
-(void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event{
    UITouch *uitouch = [touches anyObject];
    CGPoint movepoint =  [uitouch locationInView:uitouch.view];
    UIButton *targetBtn = nil;
    for (UIButton *btn in self.allButtonsArray ) {
        if (CGRectContainsPoint(btn.frame, movepoint)) {
            targetBtn = btn;
            break;
        }
    }
    if (targetBtn && targetBtn.selected != YES) {
        //设置按钮的选中状态
        targetBtn.selected=YES;
        //把按钮添加到数组中
        [[self getStringArrays] addObject:targetBtn];
    }
    //记录当前点（不在按钮的范围内）
    self.currentPoint=movepoint;
    //通知view重新绘制
    [self setNeedsDisplay];
}

#pragma mark 复写 UIResponder--API 监听手指离开屏幕
-(void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event{
    //取出用户输入的密码 创建一个可变的字符串，用来保存用户密码 取出用户输入的密码
    NSMutableString *result=[NSMutableString string];
    for (UIButton *btn in self.stringArrays) {
        [result appendFormat:@"%lu",btn.tag];
    }
    //NSLog(@"用户输入的密码为：%@",result);`
    //清空连线记录
    [self.stringArrays makeObjectsPerformSelector:@selector(setSelected:) withObject:@(NO)];
    //清空数组
    [self.stringArrays removeAllObjects];
    [self setNeedsDisplay];
    //清空当前点
    self.currentPoint=CGPointZero;
    
    //获取NSUserDefaults对象,判断该对象中是否已存在手势密码
    NSUserDefaults *userDefaults = [NSUserDefaults standardUserDefaults];
    BOOL flag = [userDefaults boolForKey:@"flag"];
    NSInteger temp_signpaw = [userDefaults integerForKey:@"temp_signpaw"];
    if (!flag) {
#pragma mark -还未设置密码
        //记录临时密码
        if (temp_signpaw==0) {
            if ([self.spDelegate respondsToSelector:@selector(setFirstPasswordSuccess:)]) {
                [self.spDelegate setFirstPasswordSuccess:result];
            }
        }
        //NSLog(@"%i",temp_signpaw);
        
        if (temp_signpaw!=0&&temp_signpaw==[result integerValue]) {
            //正确跳转
            if ([self.spDelegate respondsToSelector:@selector(setPawSuccess:)]) {
                [self.spDelegate setPawSuccess:result];
            }
        }else if(temp_signpaw!=0&&temp_signpaw!=[result integerValue]){
            //错误处理
            if([self.spDelegate respondsToSelector:@selector(setTwoPasswordError)]){
                [self.spDelegate setTwoPasswordError];
            }
        }
    }else{
#pragma mark -已设置密码了
        NSInteger status = [userDefaults integerForKey:@"status"];
        if (status==-1) {
            //调试状态
            NSLog(@"调试状态");
        }else{
            //正常状态
            //判断是从那个窗口跳转过来的
            NSString *page = [userDefaults objectForKey:@"turnPage"];
            if ([page isEqualToString:@"mainPage"]) {
                if ([self.spDelegate respondsToSelector:@selector(confirmPassword:)]) {
                    [self.spDelegate confirmPassword:result];
                }
            }else{
                NSInteger updateStatus = [userDefaults integerForKey:@"updateStatus"];
                if (updateStatus==1) {
                   NSInteger tempUpdate_signpaw = [userDefaults integerForKey:@"tempUpdate_signpaw"];
                    if (tempUpdate_signpaw==0) {
                        if ([self.spDelegate respondsToSelector:@selector(updateSPFirst:)]) {
                            [self.spDelegate updateSPFirst:result];
                        }
                    }
                    if(tempUpdate_signpaw!=0){
                        if ([self.spDelegate respondsToSelector:@selector(updateSPConfirm:)]) {
                            [self.spDelegate updateSPConfirm:result];
                        }
                    }
                }
                if(updateStatus!=1){
                    //判断是否为已成功输入手势密码
                    if ([self.spDelegate respondsToSelector:@selector(setSuccessAfterFirstPS:)]) {
                        [self.spDelegate setSuccessAfterFirstPS:result];
                    }
                }
            }
        }
    }
}

@end