1.在AppDelegate中设置第一个加载的页面，根VIEW
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
FirstViewController *firstController = [[FirstViewController alloc] init];
self.window.rootViewController = [[UINavigationController alloc]initWithRootViewController:firstController];
self.window.backgroundColor = [UIColor whiteColor];
[self.window makeKeyAndVisible];
return YES;
}
2.页面跳转
SecondViewController *secondController = [[SecondViewController alloc]init];
[self.navigationController pushViewController:secondController animated:YES];
3.页面返回
-(void)backToFirstClick
{
UINavigationController *topNavagation = self.navigationController.topViewController;
if([topNavagation isKindOfClass:[SecondViewController class]])
{
UIAlertView *alertView = [[UIAlertView alloc]initWithTitle:@"" message:@"确定要返回第一个页面吗？" delegate:self cancelButtonTitle:@"取消" otherButtonTitles:@"确定", nil];
[alertView show];
}
}
- (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex
{
if(buttonIndex == 1)
{
[self.navigationController popViewControllerAnimated:YES];
}
}