基于 iPhone View 的应用程序，无需重新加载 View

Question

我正在构建基于 View 的应用程序，它有很多页面，每个页面都有主页按钮，它将调用主页，但我的问题是每当我调用主页时， View 都会重新加载，但我不需要重新加载，所以请建议我....

主页.m

- (void)viewDidLoad {
    [super viewDidLoad];
    twitAll=0;
    facAll=0;
    CrtPage=0;
    flag=[[NSString alloc]init];
    [self Maintainpages];
    [tbv setFrame:CGRectMake(0*self.scrollView.frame.size.width,0,self.scrollView.frame.size.width,self.scrollView.frame.size.height-90)];
    [tbv1 setFrame:CGRectMake(1*self.scrollView.frame.size.width,0,self.scrollView.frame.size.width,self.scrollView.frame.size.height-90)];
    [tbv2 setFrame:CGRectMake(2*self.scrollView.frame.size.width,0,self.scrollView.frame.size.width,self.scrollView.frame.size.height-90)];
    [tbv3 setFrame:CGRectMake(3*self.scrollView.frame.size.width,0,self.scrollView.frame.size.width,self.scrollView.frame.size.height-90)];
    tbv1.hidden=YES;
    tbv2.hidden=YES;
    tbv3.hidden=YES;
    tbv.hidden=YES;
    self.view.backgroundColor = [[UIColor alloc] initWithPatternImage:[UIImage imageNamed:@"Background-bluegray.png"]];
    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(LoginCompletedSuccess:) name:@"IntigrateCompleted" object:nil];
    topbar.backgroundColor=[[[UIColor alloc]initWithPatternImage:[UIImage imageNamed:@"top-bar.png"]]autorelease];
    bottombar.backgroundColor=[[[UIColor alloc]initWithPatternImage:[UIImage imageNamed:@"top-bar.png"]]autorelease];
}

Answer 1

为了不重新加载 View ，您应该使用此源代码将所有 newView 添加为父 View 的 subview 。

[parentView addSubview:childView];

并将此 subview 置于前面

[parentView bringSubviewToFront:childView];

单击主页按钮时，删除所有 subview ，它会成为您的父 View

for(UIView *subview in [parentView subviews]) {
    [subview removeFromSuperview];
}