[Code Note] Unlock by gesture and unlock by note gesture

[Code Note] Unlock by gesture and unlock by note gesture

Animation unlocking-file directory

ViewController. h file

// Create a custom View, observe the Protocol, set the proxy, and implement the proxy method

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 // load the View15 LYPaintView * paintView = [LYPaintView paintView]; 16 // set proxy 17 paintView. delegate = self; 18 19 paintView. center = self. view. center; 20 // Add View21 [self. view addSubview: paintView]; 22} 23 // modify the status bar status 24-(UIStatusBarStyle) preferredStatusBarStyle {25 return UIStatusBarStyleLightContent; 26} 27 // implement proxy method 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
// File content, mainly for creating protocols and setting proxy Properties

1 # import <UIKit/UIKit. h> 2 @ class LYPaintView; 3 // create protocol 4 @ protocol LYPaintViewDelegate <NSObject> 5 // protocol Method 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

// Unlock

# 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 // Method for quickly creating an object class + (instancetype) paintView {return [[[NSBundle mainBundle] loadNibNamed: @ "LYPaintView" owner: nil options: nil] lastObject];} // start touch event-(void) touchesBegan :( NSSet <UITouch *> *) touches withEvent :( UIEvent *) event {// obtain the touch point UITouch * touch = touches. anyObject; CGPoint point = [touch locationInView: self]; // you can view whether the touch point is on the button [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 ;}}] ;}// when you move a cell by touch-(void) touchesMoved :( NSSet <UITouch *> *) touches withEvent :( UIEvent *) event {// obtain the current touch point UITouch * touch = touches. anyObject; CGPoint point = [touch locationInView: self]; // set the current vertex self. currentPoint = point; // click the traverse button to check whether the touch point is on the button [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] ;}}]; // re-paint [self setNeedsDisplay] ;}// when the touch ends-(void) touchesEnded :( NSSet <UITouch *> *) touches withEvent :( UIEvent *) event {// eliminate the last line UIButton * lastBtn = self. btnsArray. lastObject; self. currentPoint = lastBtn. center; [self setNeedsDisplay]; // traverses the touch button to obtain the entered password NSMutableString * password = [NSMutableString]; [self. btnsArray enumerateObjectsUsingBlock: ^ (UIButton * _ Nonnull obj, NSUInteger idx, BOOL * _ Nonnull stop) {NSInteger tag = obj. tag; [password appendFormat: @ "% @", @ (tag)] ;}]; BOOL isTrue; // The proxy determines whether the password is consistent if ([self. delegate respondsToSelector: @ selector (checkPwd: withPwd :)]) {isTrue = [self. delegate checkPwd: self withPwd: password];} if (isTrue) {NSLog (@ "correct password"); // restore the status of the button when the password is correct [self. btnsArray enumerateObjectsUsingBlock: ^ (UIButton * _ Nonnull obj, NSUInteger idx, BOOL * _ Nonnull stop) {obj. highlighted = NO;}]; [self. btnsArray removeAllObjects]; [self setNeedsDisplay];} else {NSLog (@ "Incorrect password"); // The line turns red when the password is incorrect. 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]; // the original state of the restore button with a delay of 1 second 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;}) ;}// Load button-(void) awakeFromNib {self. lineColor = CZLineColor; for (int I = 0; I <9; I ++) {// create a button and add UIButton * btn = [[UIButton alloc] init]; btn. tag = I; btn. userInteractionEnabled = NO; [btn failed: [UIImage imageNamed: @ "gesture_node_normal"] forState: UIControlStateNormal]; [btn failed: [UIImage imageNamed: @ "success"] forState: Success]; [btn setBackgroundImage: [UIImage imageNamed: @ "gesture_node_error"] forState: UIControlStateDisabled]; [self addSubview: btn] ;}}// frame-(void) of the Set button) 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);}];} // draw a line using the drawRect method-(void) drawRect :( CGRect) rect {// do not plot if (self. btnsArray. count = 0) {return;} // Creation path 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] ;}}]; // Add the final line segment [path addLineToPoint: self. currentPoint]; [self. lineColor setStroke]; [path setLineWidth: 10]; [path setLineCapStyle: kCGLineCapRound]; [path setLineJoinStyle: kCGLineJoinRound]; // render [path stroke];} // lazy load button array-(NSMutableArray *) btnsArray {if (_ btnsArray = nil) {_ btnsArray = [NSMutableArray array];} return _ btnsArray;} @ end