自定义UITabbarController控制器

 

这是定制UITabbarController的基本原理,没有进行功能性封装.

 

效果:

 

 

源码地址:

 

源码:

////  ViewController.m//  TabbarController////  Created by XianMingYou on 15/4/15.//  Copyright (c) 2015年 XianMingYou. All rights reserved.//#import "ViewController.h"#import "FirstViewController.h"#import "SecondViewController.h"#import "UIButton+DemoUse.h"typedef enum : NSUInteger {    FIRST = 0x12,    SECOND,    BACK_VIEW,} EButtonFlag;@interface ViewController ()@property (nonatomic, strong) FirstViewController  *first;@property (nonatomic, strong) SecondViewController *second;@property (nonatomic, strong) UIViewController     *current;@end@implementation ViewController- (void)viewDidLoad {    [super viewDidLoad];        self.view.backgroundColor = [UIColor whiteColor];        // 初始化第一个控制器    self.first   = [FirstViewController new];    [self addChildViewController:self.first];        // 初始化第二个控制器    self.second = [SecondViewController new];    [self addChildViewController:self.second];        // 加载第一个控制器的视图    [self.first didMoveToParentViewController:self];    [self.view addSubview:self.first.view];        // 简易存储当前控制器    self.current = self.first;        // 创建出按钮    [self createButtons];}- (void)createButtons {    UIView *backView = [[UIView alloc] initWithFrame:CGRectMake(0, 200, 320, 80)];    backView.tag     = BACK_VIEW;    [self.view addSubview:backView];        // 控制器1按钮    [UIButton createButtonWithFrame:CGRectMake(10, 0, 145, 80)                            withTag:FIRST                          withTitle:@"First"                           withFont:nil                          addTarget:self                             action:@selector(buttonEvent:)                         haveBorder:YES                       insertInView:backView];        // 控制器2按钮    [UIButton createButtonWithFrame:CGRectMake(10 + 155, 0, 145, 80)                            withTag:SECOND                          withTitle:@"Second"                           withFont:nil                          addTarget:self                             action:@selector(buttonEvent:)                         haveBorder:YES                       insertInView:backView];}- (void)buttonEvent:(UIButton *)button {        if (button.tag == FIRST) {                // 此句话必加(否则点击两次的话会报错)        if ([self.current isEqual:self.first]) {            return;        }                // 控制器转场        [self transitionFromViewController:self.current                          toViewController:self.first                                  duration:0                                   options:UIViewAnimationOptionTransitionNone                                animations:^{                                }  completion:^(BOOL finished) {                                    self.current = self.first;                                                                        // 将按钮设置到最前面                                    [self.view bringSubviewToFront:[self.view viewWithTag:BACK_VIEW]];                                }];            } else if (button.tag == SECOND) {                // 此句话必加(否则点击两次的话会报错)        if ([self.current isEqual:self.second]) {            return;        }                // 控制器转场        [self transitionFromViewController:self.current                          toViewController:self.second                                  duration:0                                   options:UIViewAnimationOptionTransitionNone                                animations:^{                                }  completion:^(BOOL finished) {                                    self.current = self.second;                                                                        // 将按钮设置到最前面                                    [self.view bringSubviewToFront:[self.view viewWithTag:BACK_VIEW]];                                }];            }    }@end