我有一个IPhone应用程序,其中我使用tabbar的自定义图像。当选择tabbar我必须显示一个图像并取消选择显示另一个。我已经成功实现了通过使用appdelegate中的波纹管代码。 `
UIImage *selectedImage0 = [UIImage imageNamed:@"pinboard_hvr2.png"];
UIImage *unselectedImage0 = [UIImage imageNamed:@"pinboard2.png"];
UIImage *selectedImage2 = [UIImage imageNamed:@"scan_hvr2.png"];
UIImage *unselectedImage2 = [UIImage imageNamed:@"scan2.png"];
UIImage *selectedImage3 = [UIImage imageNamed:@"places_hvr2.png"];
UIImage *unselectedImage3 = [UIImage imageNamed:@"places2.png"];
UITabBar *tabBar = self.tabBarController.tabBar;
tabBar.TintColor = [UIColor clearColor];
UITabBarItem *item0 = [tabBar.items objectAtIndex:0];
UITabBarItem *item1 = [tabBar.items objectAtIndex:1];
UITabBarItem *item2 = [tabBar.items objectAtIndex:2];
[item0 setFinishedSelectedImage:selectedImage0 withFinishedUnselectedImage:unselectedImage0];
[item1 setFinishedSelectedImage:selectedImage2 withFinishedUnselectedImage:unselectedImage2];
[item2 setFinishedSelectedImage:selectedImage3 withFinishedUnselectedImage:unselectedImage3];
`但是现在我的问题是我在secondindex中有一个教程视图。点击该按钮时我需要根据教程中的说明更改每个tabbar图标。但我不需要去。我想留在教程视图本身。但需要更改图标。可以帮助我实现这个目标吗?
答案 0 :(得分:1)
最后我已经解决了问题。实际上它是一个简单的东西。根据教程按钮动作设置你选择和取消选择的图像。例如,如果你有3个按钮,那里显示每个标签的重要性设置appdelegate的选定图像.tabbar根据这样的观点。
TabNavAppDelegate *appdelegate = ( TabNavAppDelegate *)[[UIApplication sharedApplication] delegate];
UIImage *unselectedImage0 = [UIImage imageNamed:@"pinboard_hvr2.png"];
UIImage *unselectedImage2 = [UIImage imageNamed:@"scan2.png"];
UIImage *selectedImage3 = [UIImage imageNamed:@"places2.png"];
UITabBar *tabBar = appdelegate.tabBarController.tabBar;
tabBar.TintColor = [UIColor clearColor];
UITabBarItem *item0 = [tabBar.items objectAtIndex:0];
UITabBarItem *item1 = [tabBar.items objectAtIndex:1];
UITabBarItem *item2 = [tabBar.items objectAtIndex:2];
[item0 setFinishedSelectedImage:unselectedImage0 withFinishedUnselectedImage:unselectedImage0];
[item1 setFinishedSelectedImage:unselectedImage2 withFinishedUnselectedImage:unselectedImage2];
[item2 setFinishedSelectedImage:selectedImage3 withFinishedUnselectedImage:selectedImage3];
`并在第三个按钮操作中将其设置回正常方式,就像在appdelegate中一样。
答案 1 :(得分:0)
向AppDelegate发送通知或调用委托方法。在该方法中,您还可以根据需要传递参数,并在那里进行特定的选项卡更改。
希望这对你有用。