UI Development Exercise 2----turn off the lights game

General idea: 1. First, the basic layout is completed by loop method

2. Each point must ensure that the state of the adjacent point is consistent with it, (the position of the side special consideration can be)

 //Turn off the light game
1 #import "ViewController.h"2 3 @interfaceViewcontroller ()4 5@property (nonatomic, strong) UIButton *But ;6@property (nonatomic, strong) NSString *str;//used to record the current status of the light7 8 @end9 Ten @implementationViewcontroller One  A- (void) Viewdidload { - [Super Viewdidload]; -  the[Self Loadbutton];//Lamp Layout -    -      - } +  - //Basic Layout +- (void) Loadbutton A { at     //set the light's initial state to light -_STR = [NSString stringWithFormat:@"iconfont-bulb"]; -     //implementing basic layouts in a circular form -Nsinteger n = -; -      for(inti =0; I <4; i++) -          for(inty =0; Y <4; y++) in         { -_but =[UIButton Buttonwithtype:uibuttontypecustom]; to             //set location and size +_but.frame = CGRectMake (i*self.view.frame.size.width/4+Ten, y*self.view.frame.size.width/4+ the, self.view.frame.size.width/4- -, -); -             //Add the [Self.view addsubview:_but]; *             //Set Background color $ [_but setbackgroundimage:[uiimage imagenamed:_str] forstate:uicontrolstatenormal];Panax Notoginseng             //Set Button addtarget/action event -[_but addtarget:self Action: @selector (Click:) forcontrolevents:uicontroleventtouchupinside];//Click events the             //set Tag Value, distinguish button + [_but settag:n]; A              then++; +         } - } $  $ //button Click to trigger Event -- (void) Click: (UIButton *) Butt - { theNsinteger n =Butt.tag; -NSLog (@"%ld", n);Wuyi     //if it's not a light state the     if([_str isequal:@"iconfont-4-2"] ==NO) -     { Wu         //background color set to bright light -[Butt setbackgroundimage:[uiimage imagenamed:@"iconfont-4-2"] forstate:uicontrolstatenormal]; About_str =@"iconfont-4-2"; $     } -     Else  //otherwise set to off light State -     { -NSLog (@"%@", _str); A_str =@"iconfont-bulb"; + [Butt setbackgroundimage:[uiimage imagenamed:_str] forstate:uicontrolstatenormal]; the     } -      $     //If the first row is the left and right state to be aligned with it the     if(n = =104|| n = =108|| n = = the) the     { the         //button state remains consistent theButt = (UIButton *) [Self.view viewwithtag:n +1]; -          in [Butt setbackgroundimage:[uiimage imagenamed:_str] forstate:uicontrolstatenormal]; the          theButt = (UIButton *) [Self.view viewwithtag:n +4]; About          the [Butt setbackgroundimage:[uiimage imagenamed:_str] forstate:uicontrolstatenormal]; the          theButt = (UIButton *) [Self.view viewwithtag:n-4]; +          - [Butt setbackgroundimage:[uiimage imagenamed:_str] forstate:uicontrolstatenormal]; the     }Bayi      the     //If this is the last line, leave the left and right to match its state the     Else if(n = =103|| n = =107|| n = =111) -     { -         //button state remains consistent theButt = (UIButton *) [Self.view viewwithtag:n-1]; the          the [Butt setbackgroundimage:[uiimage imagenamed:_str] forstate:uicontrolstatenormal]; the          -Butt = (UIButton *) [Self.view viewwithtag:n +4]; the          the [Butt setbackgroundimage:[uiimage imagenamed:_str] forstate:uicontrolstatenormal]; the         94Butt = (UIButton *) [Self.view viewwithtag:n-4]; the          the [Butt setbackgroundimage:[uiimage imagenamed:_str] forstate:uicontrolstatenormal]; the     }98     //the rest of the place is aligned with its state . About     Else -     {101Butt = (UIButton *) [Self.view viewwithtag:n +1];102         103 [Butt setbackgroundimage:[uiimage imagenamed:_str] forstate:uicontrolstatenormal];104          theButt = (UIButton *) [Self.view viewwithtag:n-1];106         107 [Butt setbackgroundimage:[uiimage imagenamed:_str] forstate:uicontrolstatenormal];108         109Butt = (UIButton *) [Self.view viewwithtag:n +4]; the         111 [Butt setbackgroundimage:[uiimage imagenamed:_str] forstate:uicontrolstatenormal]; the         113Butt = (UIButton *) [Self.view viewwithtag:n-4]; the          the [Butt setbackgroundimage:[uiimage imagenamed:_str] forstate:uicontrolstatenormal]; the         117     }118}

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UI Development Exercise 2----turn off the lights game