我想放置在導航欄中央的UIButton。基於該文件,看來我需要設置標題視圖,並確保leftBarButtonItem爲零。但這對我沒有用。這是代碼。爲什麼navigationItem.titleView不工作?
UIButton *btn = [UIButton buttonWithType:UIButtonTypeRoundedRect];
[btn setTitle:@"List" forState:UIControlStateNormal];
self.navigationItem.leftBarButtonItem = nil;
[self.navigationItem.titleView addSubview:btn];
它的工作原理,謝謝! – BlueDolphin 2008-12-06 23:24:01