Two ways to customize the label Toolbar

Set Root View Controller in appdelegate. m

Maintabbarcontroller. h

@interface MainTabbarController : UITabBarController{    UIImageView *_selectedImg;    UIView *_tabbarView;}- (void)showtabbar:(BOOL)show;

Maintabbarcontroller. m

# Import "maintabbarcontroller. H "# import" basenavgationcontroller. H "# import" homeviewcontroller. H "# import" squleviewcontroller. H "# import" searchviewcontroller. H "# import" commentviewcontroller. H "# import" messageviewcontroller. H "@ interface maintabbarcontroller () @ end @ implementation maintabbarcontroller-(ID) initwithnibname :( nsstring *) bundle :( nsbundle *) handle {self = [Super initwithnibname: nibnameornil Bundle: nibbundleornil]; If (Self) {// custom initialization} return self;}-(void) viewdidload {[Super viewdidload]; // create a level-3 controller [self _ initviewctrl]; // customize the label toolbar // [self _ inittabbarview]; [self _ newinittabarview];} // create a third-level controller-(void) _ initviewctrl {// create a first-level view controller homeviewcontroller * homectrl = [[homeviewcontroller alloc] init]; squleviewcontroller * squlectrl = [[squleviewcontroller alloc] init]; searchviewcontroller * searchctrl = [[searchviewcontroller alloc] init]; commentviewcontroller * commentctrl = [[commentviewcontroller alloc] init]; messageviewcontroller * messagectrl = [[messageviewcontroller alloc] init]; nsarray * viewctrls = @ [homectrl, squlectrl, searchctrl, commentctrl, messagectrl]; // create a second-level navigation Controller/* basenavgationcontroller * navctrl1 = [basenavgationcontroller alloc] handler: homectrl]; optional * navctrl2 = [[basenavgationcontroller alloc] direction: squlectrl]; basenavgationcontroller * navctrl3 = [[using alloc] direction: searchctrl]; optional * navctrl4 = [[basenavgationcontroller alloc] direction: commentctrl]; basenavgationcontroller * navctrl5 = [[basenavgationcontroller alloc] Reverse: messagectrl]; * // create nsmutablearray * navctrls = [[nsmutablearray alloc] limit: 5]; for (INT I = 0; I <5; I ++) {uiviewcontroller * viewctrl = viewctrls [I]; basenavgationcontroller * navctrl = [[basenavgationcontroller alloc] initwithrootviewcontroller: viewctrl]; // Add the Controller to the array [navctrls addobject: navctrl];} // store the navigation controller in the array // nsarray * navctrls = @ [navctrl1, navctrl2, navctrl3, navctrl4, navctrl5]; // create a third-level label controller self. viewcontrollers = navctrls;} // custom toolbar-(void) _ inittabbarview {// 1. hide the toolbar self generated by default. tabbar. hidden = yes; // 2. create a toolbar VIEW _ tabbarview = [[uiview alloc] initwithframe: cgrectmake (0,480-49,320, 49)]; _ tabbarview. backgroundcolor = [uicolor colorwithpatternimage: [uiimage imagenamed: @ "navbg"]; [self. view addsubview: _ tabbarview]; // 3. add the subview button for (INT I = 0; I <5; I ++) {// set the image name nsstring * name = [nsstring stringwithformat: @ "% d", I + 1]; uibutton * button = [uibutton buttonwithtype: uibuttontypecustom]; [Button setimage: [uiimage imagenamed: Name] forstate: uicontrolstatenormal]; button. tag = I; button. frame = cgrectmake (64-42)/2 + 64 * I, (49-44)/2, 42, 44); [Button addtarget: Self action: @ selector (buttonaction :) forcontrolevents: uicontroleventtouchupinside]; [_ tabbarview addsubview: button];} // 4. create selected image _ selectedimg = [[uiimageview alloc] initwithframe: cgrectmake (64-53)/2, (49-45)/2, 53, 45)]; _ selectedimg. image = [uiimage imagenamed: @ "selected"]; [_ tabbarview addsubview: _ selectedimg];} // 2. method 2: retain the custom toolbar-(void) _ newinittabarview {<strong> <span style = "color: # cc0000;"> // 1. remove all buttons on the toolbar </span> </strong> // obtain the subview nsarray * subviews = [self. tabbar subviews]; // nslog (@ "----- subviews: % @", subviews); // remove the uitabbarbutton object for (uiview * view in subviews) {// remove an object of the uitabbarbutton type // convert the uitabbarbutton to the class name class = nsclassfromstring (@ "uitabbarbutton"); // remove the view if ([view iskindofclass: class]) {[view removefromsuperview] ;}// 2. set the background color of tabbarview [self. tabbar setbackgroundimage: [uiimage imagenamed: @ "navbg"]; // 3. add the subview button for (INT I = 0; I <5; I ++) {// set the image name nsstring * name = [nsstring stringwithformat: @ "% d", I + 1]; uibutton * button = [uibutton buttonwithtype: uibuttontypecustom]; [Button setimage: [uiimage imagenamed: Name] forstate: uicontrolstatenormal]; button. tag = I; button. frame = cgrectmake (64-42)/2 + 64 * I, (49-44)/2, 42, 44); [Button addtarget: Self action: @ selector (buttonaction :) forcontrolevents: uicontroleventtouchupinside]; [self. tabbar addsubview: button];} // 4. create selected image _ selectedimg = [[uiimageview alloc] initwithframe: cgrectmake (64-53)/2, (49-45)/2, 53, 45)]; _ selectedimg. image = [uiimage imagenamed: @ "selected"]; [self. tabbar addsubview: _ selectedimg];}-(void) buttonaction :( uibutton *) button {// switch the attempt to self. selectedindex = button. tag; [uiview beginanimations: NULL context: Nil]; [uiview setanimationduration :. 3]; _ selectedimg. center = button. center; // close the animation [uiview commitanimations];} // whether to display the label toolbar-(void) showtabbar :( bool) show {// _ tabbarview. frame. origin. X =-320; error cgrect frame = _ tabbarview. frame; If (show) {// display frame. origin. X = 0;} else {frame. origin. X =-320;} [uiview beginanimations: Nil context: Nil]; [uiview setanimationduration :. 35]; _ tabbarview. frame = frame; [uiview commitanimations];} @ end

Create a navigation controller parent class to facilitate unified navigation bar settings

Basenavgationcontroller. m

- (void)viewDidLoad{    [super viewDidLoad];    [self.navigationBar setBackgroundImage:[UIImage imageNamed:@"navbar_bg_normal1"] forBarMetrics:UIBarMetricsDefault];    }

Homeviewcontroller. m

# Import "homeviewcontroller. H "# import" detailviewcontroller. H "# import" maintabbarcontroller. H "@ interface homeviewcontroller () @ end @ implementation homeviewcontroller-(ID) initwithnibname :( nsstring *) bundle :( nsbundle *) handle {self = [Super initwithnibname: nibnameornil Bundle: nibbundleornil]; If (Self) {// custom initialization self. title = @ "personal Center";} return self;}-(void) viewdidload {[Super viewdidload]; // create a button uibutton * button = [uibutton buttonwithtype: uibuttontyperoundedrect]; button. backgroundcolor = [uicolor greencolor]; button. frame = cgrectmake (90, 90, 90, 50); [Button addtarget: Self action: @ selector (buttonaction) forcontrolevents: uicontroleventtouchupinside]; [self. view addsubview: button];}-(void) buttonaction {detailviewcontroller * detailctrl = [[detailviewcontroller alloc] init]; [self. navigationcontroller pushviewcontroller: detailctrl animated: Yes]; // hide the toolbar maintabbarcontroller * mainctrl = (maintabbarcontroller *) self. tabbarcontroller; [mainctrl showtabbar: No];} @ end

Detailviewcontroller. m

# Import "detailviewcontroller. H "# import" maintabbarcontroller. H "@ interface detailviewcontroller () @ end @ implementation detailviewcontroller-(ID) initwithnibname :( nsstring *) bundle :( nsbundle *) handle {self = [Super initwithnibname: nibnameornil Bundle: nibbundleornil]; If (Self) {// when the view is pushed, remove the label bar self. hidesbottombarwhenpushed = yes;} return self;}-(void) viewdidload {[Super viewdidload]; self. title = @ "details"; self. view. backgroundcolor = [uicolor redcolor];}-(void) viewwilldisappear :( bool) animated {[Super viewwilldisappear: animated]; // note: view Controller can get the label toolbar maintabbarcontroller * mainctrl = (maintabbarcontroller *) self. tabbarcontroller; // display the toolbar [mainctrl showtabbar: Yes];}

Squleviewcontroller. m

-(ID) initwithnibname :( nsstring *) nibnameornil bundle :( nsbundle *) attributes {self = [Super initwithnibname: nibnameornil Bundle: nibbundleornil]; If (Self) {self. title = @ "square";} return self;}-(void) viewdidload {[Super viewdidload]; self. view. backgroundcolor = [uicolor greencolor];}

Searchviewcontroller. m

Commentviewcontroller. m

Messageviewcontroller. m

The three files are consistent with squleviewcontroller. m, and only the title and backgroundcolor are set.

Two ways to customize the label Toolbar