IOS Sets the tab Bar in Tabviewcontroller and implements the custom

Development environment: Xcode 6.1 iOS 7.1.2 & iOS 8.1

Implement function One, the third tab corresponding view is displayed when the app is opened;

Implement function Two, set the picture for each tab and select the picture.

-(BOOL) Application: (UIApplication *) application didfinishlaunchingwithoptions: (Nsdictionary *) launchOptions {    Override point for customization after application launch.        ---------------------------------------------    //Set the first view as Camera view and custom tab bar    //------- --------------------------------------    [self settabbar];}

Implement Settab Bar:

---------------------------------------------#pragma mark-tab bar//-------------------------------------------    ---(void) settabbar{Uitabbarcontroller *tabviewcontroller = (Uitabbarcontroller *) Self.window.rootViewController;    [Tabviewcontroller Setselectedindex:2];    Uitabbar *tabbar = Tabviewcontroller.tabbar;        [TabBar settintcolor: [Uicolor Greencolor]];    First Uitabbaritem *tabbaritem1 = [Tabbar.items objectatindex:0];    uiimage* tabbaritem1image = [UIImage imagenamed:@ "XXX"]; UIImage *scaledtabbaritem1image = [UIImage imagewithcgimage:[tabbaritem1image cgimage] Scale: (Tabbaritem1image.scale    * 3) Orientation: (tabbaritem1image.imageorientation)];    uiimage* tabbaritem1selectedimage = [UIImage imagenamed:@ "XXX"]; UIImage *scaledtabbaritem1selectedimage = [UIImage imagewithcgimage:[tabbaritem1selectedimage cgimage] Scale: (    Tabbaritem1selectedimage.scale * 3) Orientation: (tabbaritem1selectedimage.imageorientation)]; (void) [TabBarItem1 initwithtitle:@]First "Image:scaledtabbaritem1image Selectedimage:scaledtabbaritem1selectedimage];    Second Uitabbaritem *tabbaritem2 = [Tabbar.items objectatindex:1];    uiimage* tabbaritem2image = [UIImage imagenamed:@ "XXX"]; UIImage *scaledtabbaritem2image = [UIImage imagewithcgimage:[tabbaritem2image cgimage] Scale: (Tabbaritem2image.scale    * 3) Orientation: (tabbaritem2image.imageorientation)];    uiimage* tabbaritem2selectedimage = [UIImage imagenamed:@ "XXX"]; UIImage *scaledtabbaritem2selectedimage = [UIImage imagewithcgimage:[tabbaritem2selectedimage cgimage] Scale: (    Tabbaritem2selectedimage.scale * 3) Orientation: (tabbaritem2selectedimage.imageorientation)]; (void)        [TabBarItem2 initwithtitle:@ "Second" Image:scaledtabbaritem2image selectedimage:scaledtabbaritem2selectedimage]; and Others Tabs-the same way}

in the didfinishlaunchingwithoptions a custom jump directly to a tab:

    Uitabbarcontroller *tabviewcontroller = (Uitabbarcontroller *) Self.window.rootViewController;    [Tabviewcontroller Setselectedindex:2];

To keep the pixels sharp, make the icons clearer, use large pictures, and then use the code to narrow them down:

[UIImage imagewithcgimage:[tabbaritem1image Cgimage] Scale: (Tabbaritem1image.scale * 3) Orientation: ( Tabbaritem1image.imageorientation)];

another:

Because the selected image system will always set the picture to tint color, the default is blue, so you need to set your own color:

[TabBar settintcolor: [Uicolor Greencolor]];

Reference Links:

Http://stackoverflow.com/questions/18894985/uitabbar-not-showing-selected-item-images-in-ios-7

http://stackoverflow.com/a/19386156/3458781

http://www.appcoda.com/ios-programming-how-to-customize-tab-bar-background-appearance/

IOS Sets the tab Bar in Tabviewcontroller and implements the custom