IOS Ui-button button

1 #import "ViewController.h"2 3 @interfaceViewcontroller ()4 {5UILabel *lable;6 BOOL Moveflag;7 nsinteger length;8UIButton *btn;9Nstimer *timer;Ten } One  A @end -  - @implementationViewcontroller the  -- (void) Viewdidload { - [Super Viewdidload]; -Moveflag =NO; +Length =Ten; -      +Self.view.backgroundColor =[Uicolor Darkgraycolor]; Alable =[[UILabel alloc] init]; atLable.frame = CGRectMake ( -, -,280, -); -Lable.text =@"dot me."; -Lable.backgroundcolor =[Uicolor Whitecolor]; - [Self.view addsubview:lable]; -      -     //button UIButton inBTN =[UIButton Buttonwithtype:uibuttontypecustom]; -     //Set button coordinates, size toBtn.frame = CGRectMake ( the, -, -, -); +     //Setting the background map -[Btn setimage:[uiimage imagenamed:@"Fire_down.png"] forstate:uicontrolstatenormal]; the[Btn setimage:[uiimage imagenamed:@"Blue_down.png"] forstate:uicontrolstatehighlighted]; *  $     Panax Notoginseng     //Set caption (status title) - //[btn settitle:@ "Start" forstate:uicontrolstatenormal]; the //[btn settitle:@ "Press" forstate:uicontrolstatehighlighted]; +      A     //add an [associated event] to a button the [btn addtarget:self Action: @selector (Touchme) forcontrolevents:uicontroleventtouchupinside]; +     //Add a background color - [btn Setbackgroundcolor:[uicolor cyancolor]; $      $     //Button turns round -Btn.layer.cornerRadius = -; -     //Add a button to the view the [Self.view addsubview:btn]; - Wuyi } the  --(void) Touchme Wu { -     //The ball didn't move when I judged it. About     if(Moveflag = =NO) { $Moveflag =YES; -     } -     Else -Moveflag =NO; A      +     //when the ball is not moving, point the ball-change the     if(moveflag) { -Timer = [Nstimer timerwithtimeinterval:0.1target:self selector: @selector (bollmove) Userinfo:nil Repeats:yes]; $ [[Nsrunloop Currentrunloop] Addtimer:timer formode:nsrunloopcommonmodes]; the     } the     Else the [timer invalidate]; the     //when the ball moves, point the ball-don't move . -      in } the  the-(void) Bollmove About { the      the     if(btn.frame.origin.y> -) { theLength =-Ten; +  -     } the     Else if(btn.frame.origin.y<0)Bayi     { theLength =Ten; the     } -      -CGRect rect =Btn.frame; theRECT.ORIGIN.Y + =length; theBtn.frame =rect; the  the}

IOS Ui-button button