设置tabBar的图片/高度/title颜色

实现了一下内容:

1.设置tabBarItem选中及非选中时的图片,图片充满item;

2.调整了 tabBar 高度;

3.改变了title颜色及位置.

------------代码如下:

---TabBarC.m---

#import "TabBarC.h"

#import "ViewController.h"

#import "SecViewController.h"

#define CustomTabBarHeight 60//不需要改变高度就换成self.tabBar.frame.size.height

#define CustomTabBarWidth self.tabBar.frame.size.width

@interface TabBarC ()

@end

@implementation TabBarC

- (void)viewDidLoad {

[super viewDidLoad];

//初始化子控制器

ViewController *onevc = [[ViewController alloc] init];

SecViewController *twovc = [[SecViewController alloc] init];

//将VC, 未选中图,选中图 放到数组里

NSArray *onevcArr = @[onevc,@"one_icon",@"sel_one_icon"];

NSArray *twovcArr = @[twovc,@"two_icon",@"sel_two_icon"];

NSArray *vcArr = @[onevcArr,twovcArr];

[self addToTabBar:vcArr];

}

//添加子控制器到 tabBar

- (void)addToTabBar:(NSArray *)array{

for (NSInteger i=0; i<array.count; i++) {

NSArray *everyVCArr = array[i];

UIViewController *everyVC = everyVCArr[0];

everyVC.title = @"vc标题";

everyVC.view.backgroundColor = [UIColor whiteColor];

//将图片插入的位置向下移动5.5 ; top和 bottom不为相反数点击时图片会变

everyVC.tabBarItem.imageInsets = UIEdgeInsetsMake(5.5, 0, -5.5, 0);

//tabBarItem的宽

NSInteger itemWidth = CustomTabBarWidth/array.count;

#pragma -------注意:(不设置tabBarItem.image的话,其他tabBarItem的设置都无效)

#pragma -------这里没有准备不同尺寸的合适的图片,为了展示效果直接将图片缩放到合适尺寸,缩放步骤可省略

//--------设置非选中时的图片,图设置为原始状态

everyVC.tabBarItem.image = [[self editImage:everyVCArr[1] toSize:CGSizeMake(itemWidth, CustomTabBarHeight)]imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];

//设置选中时的图片,图设置为原始状态

everyVC.tabBarItem.selectedImage = [[self editImage:everyVCArr[2] toSize:CGSizeMake(itemWidth, CustomTabBarHeight)]imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];

//调整 tabBarItem 标题位置

[everyVC.tabBarItem setTitlePositionAdjustment:UIOffsetMake(0, 5)];

//设置字体颜色

NSMutableDictionary *textAttribute = [NSMutableDictionary dictionary];

textAttribute[NSForegroundColorAttributeName] = [UIColor blackColor];

[everyVC.tabBarItem setTitleTextAttributes:textAttribute forState:UIControlStateNormal];

//设置字体颜色

[everyVC.tabBarItem setTitleTextAttributes:@{NSForegroundColorAttributeName:[UIColor redColor]} forState:UIControlStateSelected];

everyVC.tabBarItem.title = @"啦啦啦啦啦啦";

UINavigationController *nvc = [[UINavigationController alloc]initWithRootViewController:everyVC];

[self addChildViewController:nvc];

}

NSLog(@"