部分修改) IOS 手勢密碼(簡單版)，ios手勢

(轉 部分修改) IOS 手勢密碼(簡單版)，ios手勢

////  Created by wangtouwang on 15/4/7.//  Copyright (c) 2015年 wangtouwang. All rights reserved.//#import <UIKit/UIKit.h>@class YYLockView;@protocol YYLockViewDelegate <NSObject>//自訂一個協議 //協議方法，把當前視圖作為參數 -(void)LockViewDidClick:(YYLockView *)lockView andPwd:(NSString *)pwd;@end@interface YYLockView : UIView//代理@property(nonatomic,weak) IBOutlet id<YYLockViewDelegate>delegate;@end

 

////  YYLockView.m//  Created by wangtouwang on 15/4/7.//  Copyright (c) 2015年 wangtouwang. All rights reserved.//#import "YYLockView.h"// 設定擷取螢幕長寬全域變數#define KSCREEN_WIDTH [UIScreen mainScreen].bounds.size.width#define KSCREEN_HEIGHT [UIScreen mainScreen].bounds.size.height#define BUTTON_HEIGHT_MIDDLE_WIDTH_RADIO 1.22@interface YYLockView (){    UIView *newView;}@property(nonatomic,strong)NSMutableArray *buttons;@property(nonatomic,strong)NSMutableArray *includButtons;//定義一個屬性，記錄當前點@property(nonatomic,assign)CGPoint currentPoint;@end@implementation YYLockView#pragma mark-懶載入-(NSMutableArray *)buttons{    if (_buttons==nil) {        _buttons=[NSMutableArray array];    }    return _buttons;}#pragma mark-懶載入-(NSMutableArray *)includButtons{    if (_includButtons==nil) {        _includButtons=[NSMutableArray array];    }    return _includButtons;}-(id)initWithCoder:(NSCoder *)aDecoder{    NSLog(@"斷點 B 號 ");    if (self=[super initWithCoder:aDecoder]) {        [self setup];    }    return self;}//介面搭建- (id)initWithFrame:(CGRect)frame{    NSLog(@"斷點  1 號 ");    self = [super initWithFrame:frame];    if (self) {        [self setup];    }    return self;}//在介面上建立9個按鈕-(void)setup{//    NSLog(@"斷點 2 號 ");//    newView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, self.frame.size.width, self.frame.size.height)];//    newView.backgroundColor=[UIColor redColor];//    [self addSubview:newView];    //1.建立9個按鈕    for (int i=0; i<9; i++) {        UIButton *btn=[UIButton buttonWithType:UIButtonTypeCustom];        //2.設定按鈕的狀態背景        [btn setBackgroundImage:[UIImage imageNamed:@"gesture_node_normal"] forState:UIControlStateNormal];        [btn setBackgroundImage:[UIImage imageNamed:@"gesture_node_highlighted"] forState:UIControlStateSelected];        //3.把按鈕添加到視圖中        [self  addSubview:btn];        //將按鈕添加到包含按鈕數組中        [[self includButtons] addObject:btn];        //4.禁止按鈕的點擊事件        btn.userInteractionEnabled=NO;        //5.設定每個按鈕的tag        btn.tag=i+1;    }}//4.設定按鈕的frame-(void)layoutSubviews{    NSLog(@"斷點順序 3 號 ");    CGFloat inverst = KSCREEN_HEIGHT/4.5;    inverst=0;    //4.1需要先調用父類的方法    [super layoutSubviews];        for (int i=0; i<[self includButtons].count; i++) {        //4.2取出按鈕        UIButton *btn=[self includButtons][i];        //4.3九宮格法計算每個按鈕的frame        CGFloat row = i/3;        CGFloat loc   = i%3;//        NSLog(@"ROW=%f LOC=%f",row,loc);        CGFloat btnW=74;        CGFloat btnH=74;        CGFloat padding=(self.frame.size.width-3*btnW)/4;        CGFloat btnX=padding+(btnW+padding)*loc;        CGFloat btnY=padding*BUTTON_HEIGHT_MIDDLE_WIDTH_RADIO+(btnW+padding)*row;//        NSLog(@"BTNX-%f BTNY=%f ",btnX,btnY);        btn.frame=CGRectMake(btnX, btnY+inverst, btnW, btnH);    }}//重寫drawrect:方法-(void)drawRect:(CGRect)rect{    NSLog(@"斷點順序 4 號 ");        //擷取上下文    CGContextRef ctx=UIGraphicsGetCurrentContext();    //在每次繪製前，清空上下文    CGContextClearRect(ctx, rect);        //填充畫布顏色    [[self renderImageWithColor:[UIColor grayColor] inSize:CGSizeMake(KSCREEN_WIDTH, KSCREEN_HEIGHT)] drawInRect:CGRectMake(0, 0, KSCREEN_WIDTH, KSCREEN_HEIGHT)];//在座標中畫出圖片            //繪圖（線段）    for (int i=0; i<self.buttons.count; i++) {        UIButton *btn=self.buttons[i];        if (0==i) {            //設定起點（注意串連的是中點）            //            CGContextMoveToPoint(ctx, btn.frame.origin.x, btn.frame.origin.y);            CGContextMoveToPoint(ctx, btn.center.x, btn.center.y);        }else        {            //            CGContextAddLineToPoint(ctx, btn.frame.origin.x, btn.frame.origin.y);            CGContextAddLineToPoint(ctx, btn.center.x, btn.center.y);        }    }        //當所有按鈕的中點都串連好之後，再串連手指當前的位置    //判斷數組中是否有按鈕，只有有按鈕的時候才繪製    if (self.buttons.count !=0) {        CGContextAddLineToPoint(ctx, self.currentPoint.x, self.currentPoint.y);    }        //渲染    //設定線條的屬性    CGContextSetLineWidth(ctx, 10);    CGContextSetLineJoin(ctx, kCGLineJoinRound);    CGContextSetLineCap(ctx, kCGLineCapRound);    CGContextSetRGBStrokeColor(ctx, 255/255.0, 0/255.0, 0/255.0, 1);        CGContextStrokePath(ctx);           }//填充畫布顏色- (UIImage *)renderImageWithColor:(UIColor *)color inSize:(CGSize)size{    CGRect rect = CGRectMake(0.0f, 0.0f, size.width, size.height);    UIGraphicsBeginImageContext(rect.size);    CGContextRef context = UIGraphicsGetCurrentContext();        CGContextSetFillColorWithColor(context, [color CGColor]);    CGContextFillRect(context, rect);        UIImage *image = UIGraphicsGetImageFromCurrentImageContext();    UIGraphicsEndImageContext();        return image;}//5.監聽手指的移動-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event{    NSLog(@"斷點 E 號 ");    CGPoint starPoint=[self getCurrentPoint:touches];    UIButton *btn=[self getCurrentBtnWithPoint:starPoint];        if (btn && btn.selected != YES) {        btn.selected=YES;        [self.buttons addObject:btn];    }    //    [self setNeedsDisplay];}-(void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event{    NSLog(@"斷點 F 號 ");    CGPoint movePoint=[self getCurrentPoint:touches];    UIButton *btn=[self getCurrentBtnWithPoint:movePoint];    //儲存按鈕    //已經連過的按鈕，不可再連    if (btn && btn.selected != YES) {        //設定按鈕的選中狀態        btn.selected=YES;        //把按鈕添加到數組中        [self.buttons addObject:btn];    }    //記錄當前點（不在按鈕的範圍內）    self.currentPoint=movePoint;    //通知view重新繪製    [self setNeedsDisplay];}//手指離開的時候清除線條-(void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event{    NSLog(@"斷點 G 號 ");    //取出使用者輸入的密碼    //建立一個可變的字串，用來儲存使用者密碼    NSMutableString *result=[NSMutableString string];    for (UIButton *btn in self.buttons) {        [result appendFormat:@"%lu",btn.tag];    }    NSLog(@"使用者輸入的密碼為：%@",result);    //通知代理，告知使用者輸入的密碼    if ([self.delegate respondsToSelector:@selector(LockViewDidClick:andPwd:)]) {        [self.delegate LockViewDidClick:self andPwd:result];    }        //重設按鈕的狀態    //    for (UIButton *btn in self.buttons) {    //        btn.selected=NO;    ////        [btn setSelected:NO];    //    }        //調用該方法，它就會讓數組中的每一個元素都調用setSelected:方法，並給每一個元素傳遞一個NO參數    [self.buttons makeObjectsPerformSelector:@selector(setSelected:) withObject:@(NO)];    //清空數組    [self.buttons removeAllObjects];    [self setNeedsDisplay];        //清空當前點    self.currentPoint=CGPointZero;}//對功能點進行封裝-(CGPoint)getCurrentPoint:(NSSet *)touches{    NSLog(@"斷點 H 號 ");    UITouch *touch=[touches anyObject];    CGPoint point=[touch locationInView:touch.view];    return point;}-(UIButton *)getCurrentBtnWithPoint:(CGPoint)point{    NSLog(@"斷點 J 號 ");    for (int i=0;i<_includButtons.count;i++) {        UIButton *btn =_includButtons[i];        if (CGRectContainsPoint(btn.frame, point)) {            return btn;        }    }    return Nil;}@end