QQ空间HD(6)-实现自定义的选项卡切换效果

#import "DJTabbarButton.h"

@implementation DJTabbarButton

- (instancetype)initWithFrame:(CGRect)frame {

if (self = [super initWithFrame:frame]) {
[self setBackgroundImage:[UIImage imageNamed:@"tabbar_separate_selected_bg"] forState:UIControlStateDisabled];
self.imageView.contentMode = UIViewContentModeCenter;

/* 设置当按钮不可用或高亮状态时不要修改图片 */
self.adjustsImageWhenDisabled = NO;
self.adjustsImageWhenHighlighted = NO;
//        self.backgroundColor = [UIColor greenColor];
}
return self;
}

- (void)layoutSubviews {

[super layoutSubviews];

if (DJLandscape) { // 横屏

/* imageView */
self.imageView.x = 0;
self.imageView.y = 0;
self.imageView.width = self.width * 0.4;
self.imageView.height = self.height;

/* titleLabel */
self.titleLabel.hidden = NO;
self.titleLabel.x = self.imageView.width;
self.titleLabel.y = 0;
self.titleLabel.width = self.width - self.imageView.width;
self.titleLabel.height = self.height;

} else { // 竖屏

/* imageView */
self.imageView.frame = self.bounds;
/* titleLabel */
self.titleLabel.hidden = YES;
}
}

/* 设置按钮无高亮状态 */
- (void)setHighlighted:(BOOL)highlighted {

}

@end

// 添加子控制器
- (void)setupChildViewControllers {

for (int i = 0; i < 6; i++) {
UIViewController *childVC = [[UIViewController alloc] init];
childVC.view.backgroundColor = DJRandomColor;
[self addChildViewController:childVC];
}
}

- (void)replaceCurrentShowingController:(DJTabBarIndex)index {

// 将当前显示的子控制器的View从界面上移除
[self.showingChildVc.view removeFromSuperview];
UIViewController *newShowingVc;
switch (index) {
case DJTabBarIndexAllStatus: // 全部动态
newShowingVc = self.childViewControllers[0];
break;
case DJTabBarIndexWithMe: // 与我相关
newShowingVc = self.childViewControllers[1];
break;
case DJTabBarIndexPhotoWall: // 照片樯
newShowingVc = self.childViewControllers[2];
break;
case DJTabBarIndexPhotoFrame: // 电子相框
newShowingVc = self.childViewControllers[3];
break;
case DJTabBarIndexFriend: // 好友
newShowingVc = self.childViewControllers[4];
break;
case DJTabBarIndexMore: // 更多
newShowingVc = self.childViewControllers[5];
break;
}

newShowingVc.view.x = self.menuView.width;
newShowingVc.view.y = 0;
newShowingVc.view.width = self.view.width - self.menuView.width;
newShowingVc.view.height = self.view.height;
[self.view addSubview:newShowingVc.view];
self.showingChildVc = newShowingVc;

}

- (void)updateSubViewFrameInLandscape {

/* menuView */
self.menuView.width = DJMenuViewLW;
self.menuView.height = DJScreenLH;
self.menuView.x = 0;
self.menuView.y = 0;

/* showingChildVc */
self.showingChildVc.view.x = self.menuView.width;
self.showingChildVc.view.y = 0;
self.showingChildVc.view.width = DJScreenLW - self.menuView.width;
self.showingChildVc.view.height = DJScreenLH;

}

- (void)updateSubViewsViewFrameInPortrait {

/* menuView */
self.menuView.width = DJMenuViewPW;
self.menuView.height = DJScrrenPH;
self.menuView.x = 0;
self.menuView.y = 0;

/* showingChildVc */
self.showingChildVc.view.x = self.menuView.width;
self.showingChildVc.view.y = 0;
self.showingChildVc.view.width = DJScreenPW - self.menuView.width;
self.showingChildVc.view.height = DJScrrenPH;

}
// 当屏幕方向将会发生改变时调用此方法
- (void)willRotateToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation duration:(NSTimeInterval)duration {

if (UIInterfaceOrientationIsLandscape(toInterfaceOrientation)) { // 横屏
[self updateSubViewFrameInLandscape];
} else { // 竖屏
[self updateSubViewsViewFrameInPortrait];
}

// 设置当前子控制器的View不拉伸
self.showingChildVc.view.autoresizingMask = UIViewAutoresizingNone;

}