Question

- (void)applicationDidFinishLaunching:(NSNotification *)aNotification
{
    self.rootVC = [[VZMConversationViewController alloc] initWithNibName:@"VZMConversationViewController" bundle:[NSBundle mainBundle]];
    [self.window.contentView addSubview:self.rootVC.view];
    self.rootVC.view.frame = ((NSView*)self.window.contentView).bounds;
/*
    [NSLayoutConstraint constraintWithItem:self.rootVC.view attribute:NSLayoutAttributeWidth relatedBy:NSLayoutRelationEqual toItem:self.window.contentView attribute:NSLayoutAttributeWidth multiplier:1 constant:0];
    [NSLayoutConstraint constraintWithItem:self.rootVC.view attribute:NSLayoutAttributeHeight relatedBy:NSLayoutRelationEqual toItem:self.window.contentView attribute:NSLayoutAttributeHeight multiplier:1 constant:0];
//above 2 lines are not working
*/


}

嘿，我是一名试图理解mac开发的iPhone开发人员，我有上面的代码以及如何向第一个视图控制器视图添加约束，以便控制器视图通过窗口调整大小。可以在XIB中完成吗？

Answer 1

- (void)applicationDidFinishLaunching:(NSNotification *)aNotification
{
    self.rootVC = [[VZMConversationViewController alloc] initWithNibName:@"VZMConversationViewController" bundle:[NSBundle mainBundle]];

    NSView *rootView=self.rootVC.view;
    [rootView setTranslatesAutoresizingMaskIntoConstraints:NO];
    [[[self window] contentView] addSubview:rootView];
    [[[self window] contentView] addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@"H:|[rootView]|" options:0 metrics:nil views:NSDictionaryOfVariableBindings(rootView)]];
    [[[self window] contentView] addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@"V:|[rootView]|" options:0 metrics:nil views:NSDictionaryOfVariableBindings(rootView)]];

}

这解决了问题

如何在Windows内容视图和NSViewControllers视图之间添加固定的宽度和高度约束

1 个答案: