TUIViewNSViewContainer doesn't work as expected

[luosheng]

Here's the scenario: I have a TUIView called ExampleView acting as the rootView of a TUINSView and I want to add an NSView to it. So I copy the following code from TwUI's ExampleProject and paste it to ExampleView's initWithFrame: method.

NSTextField *textField = [[NSTextField alloc] initWithFrame:NSMakeRect(20, 180, 91, 22)];
[textField.cell setUsesSingleLineMode:YES];
[textField.cell setScrollable:YES];

self.textFieldContainer = [[TUIViewNSViewContainer alloc] initWithNSView:textField];
self.textFieldContainer.backgroundColor = [NSColor blueColor];
[self addSubview:self.textFieldContainer];

It was supposed to show a text field on the screen. However it just showed a blue rectangle instead (the TUIViewNSViewContainer).

So I looked into the source of TUIViewNSViewContainer. It tried to add the NSView to its ancestorTUINSView's appKitHostView. However, at that time the TUIViewNSViewContainer's ancestorTUINSView property is still nil becasuse here's how we initialize the ExampleView in the ExampleAppDelegate:

TUINSView *tuiTableViewContainer = [[TUINSView alloc] initWithFrame:b];
[tableViewWindow setContentView:tuiTableViewContainer];

ExampleView *tableExample = [[ExampleView alloc] initWithFrame:b];
tuiTableViewContainer.rootView = tableExample;

The ExampleView's nsView property is set in the last statement when TUINSView's setRootView method is called. So adding a NSView to TUIView in the initWithFrame: method before it won't work.

The ExampleProject works because text fields are added to the table cells, which are initialized after TUIViewNSViewContainer's nsView is set.

[jspahrsummers]

Fixed by #70. Thanks for reporting this!