【代碼筆記】手勢解鎖，筆記手勢解鎖

【代碼筆記】手勢解鎖，筆記手勢解鎖

動畫實現解鎖-檔案目錄

ViewController.h檔案

//建立自訂的View,遵守協議，設定代理，實現代理方法

 1 #import "LYPaintView.h" 2  3 #import "ViewController.h" 4  5 @interface ViewController ()<LYPaintViewDelegate> 6  7 @end 8  9 @implementation ViewController10 11 - (void)viewDidLoad {12     [super viewDidLoad];13     self.view.backgroundColor=[UIColor colorWithPatternImage:[UIImage imageNamed:@"bg"]];14     //載入子定的View15     LYPaintView *paintView=[LYPaintView paintView];16     //設定代理17     paintView.delegate=self;18     19     paintView.center =self.view.center;20     //添加View21     [self.view addSubview:paintView];22 }23 //修改狀態列的狀態24 -(UIStatusBarStyle)preferredStatusBarStyle{25     return UIStatusBarStyleLightContent;26 }27 //實現代理方法28 -(BOOL)checkPwd:(LYPaintView *)paintView withPwd:(NSString *)pawd{29     if ([pawd isEqualToString:@"345"]) {30         return YES;31     }32     return NO;33 }34 @end

LYPaintView.h
//檔案內容，主要是建立協議，設定代理屬性

 1 #import <UIKit/UIKit.h> 2 @class LYPaintView; 3 //建立協議 4 @protocol LYPaintViewDelegate <NSObject> 5 //協議的方法 6 -(BOOL)checkPwd:(LYPaintView *)paintView withPwd:(NSString *)pawd; 7  8 @end 9 10 @interface LYPaintView : UIView11 +(instancetype)paintView;12 @property(nonatomic,weak)id <LYPaintViewDelegate>delegate;13 @end

LYPaintView.m

//實現解鎖

#import "LYPaintView.h"#define CZLineColor [UIColor colorWithRed:0.0 green:170/255.0 blue:255/255.0 alpha:0.5]@interface LYPaintView ()@property(nonatomic,strong)NSMutableArray *btnsArray;@property(nonatomic,strong)UIColor *lineColor;@property(nonatomic,assign)CGPoint currentPoint;@end@implementation LYPaintView//快速建立對象類方法+(instancetype)paintView{    return [[[NSBundle mainBundle]loadNibNamed:@"LYPaintView" owner:nil options:nil]lastObject];    }//開始觸摸事件-(void)touchesBegan:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event{    //擷取觸摸點    UITouch *touch=touches.anyObject;    CGPoint point=[touch locationInView:self];    //遍曆按鈕看觸摸點是否在按鈕上    [self.subviews enumerateObjectsUsingBlock:^(__kindof UIButton * _Nonnull obj, NSUInteger idx, BOOL * _Nonnull stop) {                BOOL isContain=CGRectContainsPoint(obj.frame, point);        if (isContain && obj.highlighted==NO) {            obj.highlighted=YES;            [self.btnsArray addObject:obj];        }else{            obj.highlighted =NO;        }            }];    }//觸摸移動時-(void)touchesMoved:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event{    //擷取當前的觸摸點    UITouch *touch=touches.anyObject;    CGPoint point=[touch locationInView:self];    //設定當前點    self.currentPoint=point;    //遍曆按鈕看觸摸點是否在按鈕上    [self.subviews enumerateObjectsUsingBlock:^(__kindof UIButton * _Nonnull obj, NSUInteger idx, BOOL * _Nonnull stop) {                BOOL isContain=CGRectContainsPoint(obj.frame, point);        if (isContain && obj.highlighted==NO) {            obj.highlighted=YES;            [self.btnsArray addObject:obj];                    }    }];    //重繪    [self setNeedsDisplay];}//觸摸結束時-(void)touchesEnded:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event{    //消除最後的線   UIButton *lastBtn = self.btnsArray.lastObject;    self.currentPoint=lastBtn.center;    [self setNeedsDisplay];    //遍曆觸摸過的按鈕獲得輸入的密碼    NSMutableString *password=[NSMutableString string];    [self.btnsArray enumerateObjectsUsingBlock:^(UIButton *  _Nonnull obj, NSUInteger idx, BOOL * _Nonnull stop) {        NSInteger tag=obj.tag;        [password appendFormat:@"%@",@(tag)];    }];    BOOL isTrue;    //代理實現判斷密碼是否一致    if ([self.delegate respondsToSelector:@selector(checkPwd:withPwd:)]) {       isTrue = [self.delegate checkPwd:self withPwd:password];    }    if (isTrue) {        NSLog(@"密碼正確");        //密碼正確時恢複按鈕的狀態        [self.btnsArray enumerateObjectsUsingBlock:^(UIButton *  _Nonnull obj, NSUInteger idx, BOOL * _Nonnull stop) {            obj.highlighted=NO;                    }];        [self.btnsArray removeAllObjects];        [self setNeedsDisplay];            }else{        NSLog(@"密碼錯誤");         //密碼錯誤時線變為紅色        self.userInteractionEnabled=NO;        [self.btnsArray enumerateObjectsUsingBlock:^(UIButton *  _Nonnull obj, NSUInteger idx, BOOL * _Nonnull stop) {            obj.highlighted=NO;            obj.enabled=NO;        }];        self.lineColor=[UIColor redColor];        [self setNeedsDisplay];        //延遲1秒恢複按鈕的原來狀態        dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(1.0 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{                        [self.btnsArray enumerateObjectsUsingBlock:^(UIButton *  _Nonnull obj, NSUInteger idx, BOOL * _Nonnull stop) {                obj.enabled=YES;            }];            [self.btnsArray removeAllObjects];            [self setNeedsDisplay];            self.userInteractionEnabled=YES;            self.lineColor=CZLineColor;        });                           }    }//載入按鈕-(void)awakeFromNib{    self.lineColor=CZLineColor;        for (int i=0; i<9; i++) {        //建立按鈕並添加        UIButton *btn=[[UIButton alloc]init];        btn.tag=i;        btn.userInteractionEnabled = NO;                [btn setBackgroundImage:[UIImage imageNamed:@"gesture_node_normal"] forState:UIControlStateNormal];        [btn setBackgroundImage:[UIImage imageNamed:@"gesture_node_highlighted"] forState:UIControlStateHighlighted];        [btn setBackgroundImage:[UIImage imageNamed:@"gesture_node_error"] forState:UIControlStateDisabled];                [self addSubview:btn];    }    }//設定按鈕的frame-(void)layoutSubviews{    [super layoutSubviews];    int conNum=3;    CGFloat btnW=70;    CGFloat btnH=70;    CGFloat magin=(self.frame.size.width - conNum *btnW)/(conNum -1);        [self.subviews enumerateObjectsUsingBlock:^(__kindof UIButton * _Nonnull obj, NSUInteger idx, BOOL * _Nonnull stop) {        NSInteger col=idx % conNum;        NSInteger row=idx / conNum;        CGFloat btnX=col *(magin + btnW);        CGFloat btnY=row *(magin + btnH);                obj.frame=CGRectMake(btnX, btnY, btnW, btnH);    }];    }//drawRect方法繪製線條- (void)drawRect:(CGRect)rect {    //如果數組內沒有元素就不要繪製了    if (self.btnsArray.count==0) {        return ;    }        //建立路徑    UIBezierPath *path=[UIBezierPath bezierPath];    [self.btnsArray enumerateObjectsUsingBlock:^(UIButton *  _Nonnull obj, NSUInteger idx, BOOL * _Nonnull stop) {        if (idx==0) {            [path  moveToPoint:obj.center];        }else{            [path addLineToPoint:obj.center];        }    }];    //添加最後的線段    [path addLineToPoint:self.currentPoint];    [self.lineColor setStroke];    [path setLineWidth:10];    [path setLineCapStyle:kCGLineCapRound];    [path setLineJoinStyle:kCGLineJoinRound];    //渲染    [path stroke];    }//懶載入按鈕數組-(NSMutableArray *)btnsArray{    if (_btnsArray==nil) {        _btnsArray=[NSMutableArray array];    }    return _btnsArray;}@end