////  Created by wangtouwang on 15/4/7.//  Copyright (c) 2015年 wangtouwang. All rights reserved.//#import <UIKit/UIKit.h>@class YYLockView;@PRotocol YYLockViewDelegate <NSObject>//自定義一個(gè)協(xié)議 //協(xié)議方法，把當(dāng)前視圖作為參數(shù) -(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(shè)置獲取屏幕長(zhǎng)寬全局變量#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(gè)屬性，記錄當(dāng)前點(diǎn)@property(nonatomic,assign)CGPoint currentPoint;@end@implementation YYLockView#pragma mark-懶加載-(NSMutableArray *)buttons{    if (_buttons==nil) {        _buttons=[NSMutableArray array];    }    return _buttons;}#pragma mark-懶加載-(NSMutableArray *)includButtons{    if (_includButtons==nil) {        _includButtons=[NSMutableArray array];    }    return _includButtons;}-(id)initWithCoder:(NSCoder *)aDecoder{    NSLog(@"斷點(diǎn) B 號(hào) ");    if (self=[super initWithCoder:aDecoder]) {        [self setup];    }    return self;}//界面搭建- (id)initWithFrame:(CGRect)frame{    NSLog(@"斷點(diǎn)  1 號(hào) ");    self = [super initWithFrame:frame];    if (self) {        [self setup];    }    return self;}//在界面上創(chuàng)建9個(gè)按鈕-(void)setup{//    NSLog(@"斷點(diǎn) 2 號(hào) ");//    newView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, self.frame.size.width, self.frame.size.height)];//    newView.backgroundColor=[UIColor redColor];//    [self addSubview:newView];    //1.創(chuàng)建9個(gè)按鈕    for (int i=0; i<9; i++) {        UIButton *btn=[UIButton buttonWithType:UIButtonTypeCustom];        //2.設(shè)置按鈕的狀態(tài)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(shù)組中        [[self includButtons] addObject:btn];        //4.禁止按鈕的點(diǎn)擊事件        btn.userInteractionEnabled=NO;        //5.設(shè)置每個(gè)按鈕的tag        btn.tag=i+1;    }}//4.設(shè)置按鈕的frame-(void)layoutSubviews{    NSLog(@"斷點(diǎn)順序 3 號(hào) ");    CGFloat inverst = KSCREEN_HEIGHT/4.5;    inverst=0;    //4.1需要先調(diào)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(jì)算每個(gè)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(diǎn)順序 4 號(hào) ");        //獲取上下文    CGContextRef ctx=UIGraphicsGetCurrentContext();    //在每次繪制前，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)];//在坐標(biāo)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(shè)置起點(diǎn)（注意連接的是中點(diǎn)）            //            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(dāng)所有按鈕的中點(diǎn)都連接好之后，再連接手指當(dāng)前的位置    //判斷數(shù)組中是否有按鈕，只有有按鈕的時(shí)候才繪制    if (self.buttons.count !=0) {        CGContextAddLineToPoint(ctx, self.currentPoint.x, self.currentPoint.y);    }        //渲染    //設(shè)置線條的屬性    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(jiān)聽手指的移動(dòng)-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event{    NSLog(@"斷點(diǎn) E 號(hào) ");    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(diǎn) F 號(hào) ");    CGPoint movePoint=[self getCurrentPoint:touches];    UIButton *btn=[self getCurrentBtnWithPoint:movePoint];    //存儲(chǔ)按鈕    //已經(jīng)連過的按鈕，不可再連    if (btn && btn.selected != YES) {        //設(shè)置按鈕的選中狀態(tài)        btn.selected=YES;        //把按鈕添加到數(shù)組中        [self.buttons addObject:btn];    }    //記錄當(dāng)前點(diǎn)（不在按鈕的范圍內(nèi)）    self.currentPoint=movePoint;    //通知view重新繪制    [self setNeedsDisplay];}//手指離開的時(shí)候清除線條-(void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event{    NSLog(@"斷點(diǎn) G 號(hào) ");    //取出用戶輸入的密碼    //創(chuàng)建一個(gè)可變的字符串，用來保存用戶密碼    NSMutableString *result=[NSMutableString string];    for (UIButton *btn in self.buttons) {        [result appendFormat:@"%lu",btn.tag];    }    NSLog(@"用戶輸入的密碼為：%@",result);    //通知代理，告知用戶輸入的密碼    if ([self.delegate respondsToSelector:@selector(LockViewDidClick:andPwd:)]) {        [self.delegate LockViewDidClick:self andPwd:result];    }        //重置按鈕的狀態(tài)    //    for (UIButton *btn in self.buttons) {    //        btn.selected=NO;    ////        [btn setSelected:NO];    //    }        //調(diào)用該方法，它就會(huì)讓數(shù)組中的每一個(gè)元素都調(diào)用setSelected:方法，并給每一個(gè)元素傳遞一個(gè)NO參數(shù)    [self.buttons makeObjectsPerformSelector:@selector(setSelected:) withObject:@(NO)];    //清空數(shù)組    [self.buttons removeAllObjects];    [self setNeedsDisplay];        //清空當(dāng)前點(diǎn)    self.currentPoint=CGPointZero;}//對(duì)功能點(diǎn)進(jìn)行封裝-(CGPoint)getCurrentPoint:(NSSet *)touches{    NSLog(@"斷點(diǎn) H 號(hào) ");    UITouch *touch=[touches anyObject];    CGPoint point=[touch locationInView:touch.view];    return point;}-(UIButton *)getCurrentBtnWithPoint:(CGPoint)point{    NSLog(@"斷點(diǎn) J 號(hào) ");    for (int i=0;i<_includButtons.count;i++) {        UIButton *btn =_includButtons[i];        if (CGRectContainsPoint(btn.frame, point)) {            return btn;        }    }    return Nil;}@end