093 adding a UIView subclass to the selector

The effect is as follows:

ViewController.h

1 #import <UIKit/UIKit.h>23@interface Viewcontroller:uiviewcontroller <uipickerviewdatasource, uipickerviewdelegate>4 @property (Strong, Nonatomic) Uipickerview *  Pikvcustom; 5 @property (Strong, Nonatomic) Nsarray *arranimal; 6 7 @end

Viewcontroller.m

1 #import "ViewController.h"2 3 @interfaceViewcontroller ()4- (void) Layoutui;5- (void) Buttondidpush: (UIButton *) sender;6 @end7 8 @implementationViewcontroller9 Ten- (void) Viewdidload { One [Super Viewdidload]; A      - [self layoutui]; - } the  -- (void) didreceivememorywarning { - [Super didreceivememorywarning]; -     //Dispose of any resources the can be recreated. + } -  +- (void) Viewwillappear: (BOOL) Animated { A [Super viewwillappear:animated]; at [Self.navigationcontroller setnavigationbarhidden:no animated:animated]; - [Self.navigationcontroller settoolbarhidden:no animated:animated]; - } -  -- (void) Layoutui { -Self.view.backgroundColor =[Uicolor Whitecolor]; inSelf.navigationItem.title =@"to add a UIView subclass to the selector"; -      to     //initialize an array of animal images (data source) _arranimal +UIImage *imgdog = [UIImage imagenamed:@"Dog"]; -UIImage *imgelephant = [UIImage imagenamed:@"Elephant"]; theUIImage *imglion = [UIImage imagenamed:@"Lion"]; *UIImage *imgmonkey = [UIImage imagenamed:@"Monkey"]; $_arranimal =@[imgdog, Imgelephant, Imglion, Imgmonkey];Panax Notoginseng_arranimal =@[_arranimal, _arranimal, _arranimal]; -      the_pikvcustom = [[Uipickerview alloc] Initwithframe:cgrectmake (0,0,0,0)]; +Cgpoint Newpoint =Self.view.center; A_pikvcustom.center =Newpoint; the_pikvcustom.datasource =Self ; +_pikvcustom.Delegate=Self ; - [Self.view Addsubview:_pikvcustom]; $      $UIButton *btnchoice = [[UIButton alloc] Initwithframe:cgrectmake (0,0, Max, +)]; -Newpoint.y + = the; -Btnchoice.center =Newpoint; theBtnChoice.layer.masksToBounds =YES; -BtnChoice.layer.cornerRadius =10.0;WuyiBtnChoice.layer.borderColor =[Uicolor Blackcolor]. Cgcolor; theBtnChoice.layer.borderWidth =2.0; -[Btnchoice Settitle:@"Selection Complete"Forstate:uicontrolstatenormal]; Wu [Btnchoice Settitlecolor:[uicolor Blackcolor] forstate:uicontrolstatenormal]; - [Btnchoice addtarget:self About Action: @selector (Buttondidpush:) $ Forcontrolevents:uicontroleventtouchupinside]; - [Self.view Addsubview:btnchoice]; - } -  A- (void) Buttondidpush: (UIButton *) Sender { +Nsinteger numberofcomponents =[_pikvcustom numberofcomponents]; theNsmutablearray *marrnew =[[Nsmutablearray alloc] initwithcapacity:numberofcomponents]; -      for(Nsinteger i=0; i<numberofcomponents; i++) { $Uiimageview *IMGV = (Uiimageview *) [_pikvcustom viewforrow:[_pikvcustom selectedrowincomponent:i] forcomponent:i]; theUiimageview *imgvnew =[[Uiimageview alloc] initWithImage:imgV.image]; theUibarbuttonitem *barbtnnew =[[Uibarbuttonitem alloc] initwithcustomview:imgvnew]; the [Marrnew addobject:barbtnnew]; the     } - [self settoolbaritems:marrnew animated:yes]; in } the  the #pragmaMark-pickerview About-(Nsinteger) Numberofcomponentsinpickerview: (Uipickerview *) Pickerview { the     return[_arranimal Count];//returns the number of component columns the } the  +-(Nsinteger) Pickerview: (Uipickerview *) Pickerview numberofrowsincomponent: (Nsinteger) component { -     return[_arranimal[0] Count];//returns the number of component rows the }Bayi  the-(UIView *) Pickerview: (Uipickerview *) Pickerview Viewforrow: (nsinteger) Row forcomponent: (Nsinteger) component Reusingview: (UIView *) View { the     //Direct Display (reuse) if the parameter view object is already initialized -Uiimageview *IMGV = (Uiimageview *) view; -     if(!IMGV) { theUIImage *img =_arranimal[component][row]; theIMGV =[[Uiimageview alloc] initwithimage:img]; the     } the     returnIMGV; - } the  the @end

AppDelegate.h

1 #import <UIKit/UIKit.h>23@interface Appdelegate:uiresponder < Uiapplicationdelegate>4 @property (Strong, Nonatomic) UIWindow *window; 5 @property (Strong, Nonatomic) Uinavigationcontroller *Navigationcontroller; 6 7 @end

Appdelegate.m

1 #import "AppDelegate.h"2 #import "ViewController.h"3 4 @interfaceappdelegate ()5 @end6 7 @implementationappdelegate8 9-(BOOL) Application: (UIApplication *) application didfinishlaunchingwithoptions: (Nsdictionary *) launchoptions {Ten_window =[[UIWindow alloc] initwithframe:[[uiscreen mainscreen] bounds]; OneViewcontroller *viewcontroller =[[Viewcontroller alloc] init]; A_navigationcontroller =[[Uinavigationcontroller alloc] initwithrootviewcontroller:viewcontroller]; -_window.rootviewcontroller =_navigationcontroller; -     //[_window Addsubview:_navigationcontroller.view];//when _window.rootviewcontroller is associated, this sentence is optional the [_window makekeyandvisible]; -     returnYES; - } -  +- (void) Applicationwillresignactive: (UIApplication *) Application { - } +  A- (void) Applicationdidenterbackground: (UIApplication *) Application { at } -  -- (void) Applicationwillenterforeground: (UIApplication *) Application { - } -  -- (void) Applicationdidbecomeactive: (UIApplication *) Application { in } -  to- (void) Applicationwillterminate: (UIApplication *) Application { + } -  the @end

093 Adding a UIView subclass to the selector