iOS gesture unlock

A demo you did during the practice, attached to GitHub address: Https://github.com/H0ng/GestureLock

#HHView. h

#import <UIKit/UIKit.h> @class hhview; @protocol hhviewdelegate <NSObject> @optional-(void) ShowView: ( hhview*) ShowView Didfinishedpath: (NSString *) path; @end @interface Hhview:uiview@property (nonatomic, weak) id< Hhviewdelegate> delegate;
@end

#HHView. M

#import "HHView.h" #import "HHCircleButton.h" @interface Hhview () @property (nonatomic, strong) Nsmutablearray * totalpointpaths; @property (nonatomic, assign) cgpoint currentpoint; @end @implementation hhview-(Nsmutablearray *)        totalpointpaths{if (_totalpointpaths = = nil) {Nsmutablearray *array = [Nsmutablearray array];    _totalpointpaths = array; } return _totalpointpaths;} /** * This method is called by Code creation */-(instancetype) initWithFrame: (CGRect) frame{if (self = [Super Initwithframe:frame]) {[sel    F Setup]; } return self;} /** * Created by XIB,SB will call this method */-(ID) Initwithcoder: (Nscoder *) decoder{if (self = [Super Initwithcoder:decoder]) {[SE    LF Setup]; } return self;} /** * Create 9 buttons */-(void) setup{for (int i = 0; i < 9; i++) {Hhcirclebutton *button = [Hhcirclebutton butto        Nwithtype:uibuttontypecustom];        Button.tag = i;    [Self Addsubview:button];        }}/** * 9-button frame */-(void) layoutsubviews{[Super Layoutsubviews]; for (inti = 0; i < Self.subviews.count;        i++) {Hhcirclebutton *button = self.subviews[i];        int col = I/3;        int row = i% 3;        CGFloat buttonw = 74;        CGFloat Buttonh = 74;        CGFloat leftparading = (SELF.FRAME.SIZE.WIDTH-BUTTONW * 3)/4.0;        CGFloat Buttonx = leftparading + (leftparading + buttonw) * ROW;        CGFloat buttony = leftparading + (leftparading + buttonh) * COL;        Button.frame = CGRectMake (Buttonx, Buttony, Buttonw, Buttonh);    }} #pragma mark-return touches point of point-(Cgpoint) pointwithtouches: (Nsset *) touches{Uitouch *touch = [touches anyobject];    Cgpoint point = [Touch locationinview:self]; return point;} #pragma mark-Determine if the contact is within the frame of the button-(Hhcirclebutton *) Buttonwithpoint: (Cgpoint) point{for (Hhcirclebutton *btn in SELF.SUBV        iews) {cgfloat wh = 24;        CGFloat FrameX = btn.center.x-wh * 0.5;        CGFloat Framey = btn.center.y-wh * 0.5; if (Cgrectcontainspoint (CGRectMake (FrameX, Framey, WH, WH),Point) {return btn; }} return nil;} #pragma mark-touchesbegan-(void) Touchesbegan: (Nsset *) touches withevent: (uievent *) event{self.currentpoint = CGPoint    Zero;        Gets the current touch point cgpoint points = [self pointwithtouches:touches];        Judge if the touch point is on a btn, return this btn, otherwise return nil Hhcirclebutton *btn = [self buttonwithpoint:point];        Determine if the btn, and whether the BTN is selected, if not, select if (btn && btn.selected = no) {btn.selected = YES;    [Self.totalpointpaths ADDOBJECT:BTN]; }//Redraw [self setneedsdisplay];} #pragma mark-touchesmoved-(void) touchesmoved: (Nsset *) touches withevent: (uievent *) event{cgpoint point = [Self point        Withtouches:touches];        Hhcirclebutton *btn = [self buttonwithpoint:point];        Determine if the button has been selected if (btn && btn.selected = = NO) {btn.selected = YES;    [Self.totalpointpaths ADDOBJECT:BTN];    }else{self.currentpoint = point; } [self setneedsdisplay];} #pragma mark-touchesended-(vOID) touchesended: (Nsset *) touches withevent: (uievent *) event{//cgpoint point = [self pointwithtouches:touches];/// /Hhcirclebutton *btn = [self buttonwithpoint:point];////if (btn && btn.selected = NO) {//BTN.        selected = yes;//[self.totalpointpaths addobject:btn];//}else{//self.currentpoint = point;//} if ([Self.delegate respondstoselector: @selector (Showview:didfinishedpath:)]) {nsmutablestring *path = [NSMutabl        Estring string];        For (Hhcirclebutton *btn in self.totalpointpaths) {[path appendformat:@ '%ld ', (long) btn.tag];    } [Self.delegate showview:self Didfinishedpath:path];    }//Will current clears 0 self.currentpoint = Cgpointzero; Then set all buttons unchecked//[Self.totalpointpaths Makeobjectsperformselector: @selector (setselected:) withobject:@ (NO)]    ;//[Self.totalpointpaths removeallobjects];    [Self setneedsdisplay]; }-(void) touchescancelled: (Nsset *) touches withevent: (UievENT *) event{[self touchesended:touches withevent:event];}        #pragma mark-Draw the link between buttons-(void) DrawRect: (CGRect) rect{if (Self.totalpointPaths.count = = 0) return;    Uibezierpath *path = [Uibezierpath Bezierpath]; for (int index = 0; index < self.totalpointPaths.count; index++) {Hhcirclebutton *btn = Self.totalpointpaths[ind        EX];        if (index = = 0) {[path moveToPoint:btn.center];        }else{[path AddLineToPoint:btn.center]; }} if (Cgpointequaltopoint (self.currentpoint, cgpointzero) = = NO) {[Path AddLineToPoint:self.currentPoi    NT];    } path.linewidth = 10;    Path.linejoinstyle = Kcglinejoinround;    [[Uicolor colorwithred:32/255.0 green:210/255.0 blue:254/255.0 alpha:0.5] set]; [Path stroke];}

#HHCircleButton. h

#import <UIKit/UIKit.h> @interface Hhcirclebutton:uibutton@end

#HHCircleButton. M

#import "HHCircleButton.h" @implementation hhcirclebutton-(ID) Initwithcoder: (Nscoder *) decoder{    if (self = [super Initwithcoder:decoder]) {        [self setup];    }    return self;} -(Instancetype) initWithFrame: (cgrect) frame{    if (self = [Super Initwithframe:frame]) {        [self setup];    }    return self;} #pragma mark-Set button state picture-(void) setup{    self.userinteractionenabled = NO;        [Self setbackgroundimage:[uiimage imagenamed:@ "Gesture_node_normal"] forstate:uicontrolstatenormal];    [Self setbackgroundimage:[uiimage imagenamed:@ "gesture_node_highlighted"] forstate:uicontrolstateselected];} @end

#ViewController. h

#import <UIKit/UIKit.h> @interface Viewcontroller:uiviewcontroller@end

#ViewController. M

#import "ViewController.h" #import "HHView.h" @interface Viewcontroller () 
iOS gesture unlock