Question

我正在尝试实现以下方案：有一个名为“学习的屏幕（此屏幕是我的标签栏控制器的rootViewController）

在此屏幕中，我需要显示两个不同的表格：字词和字词

我需要以编程方式执行此操作（即，没有nib文件）。所以我正在为研究视图控制器编写加载视图：

// Implement loadView to create a view hierarchy programmatically, without using a nib.
- (void)loadView {
  //creating the view for the screen "Study"
  CGRect cgRct = CGRectMake(0, 0, 320, 367); //define size and position of view 
  UIView *myStudyView = [[UIView alloc] initWithFrame:cgRct]; //initilize the view 
  myStudyView.autoresizesSubviews = YES; //allow it to tweak size of elements in view 
  myStudyView.backgroundColor = [UIColor brownColor];
  self.view = myStudyView; //set view property of controller to the newly created view 
  [myStudyView release];

  //creating the view for the "words" and instantiating the view controller
  WordsTableViewController *wordsTVC = [[[WordsTableViewController alloc] initWithStyle:UITableViewStylePlain] autorelease];
  cgRct = CGRectMake(0, 10, 320, 100);//define size and position of view 
  UIView *myWordsView = [[UIView alloc] initWithFrame:cgRct];//initilize the view
  myWordsView.autoresizesSubviews = YES;//allow it to tweak size of elements in view
  wordsTVC.view = myWordsView;//set view property of controller to the newly created view
  [myWordsView release];
  [self.view addSubview:wordsTVC.view];

  //creating the view for the "phrases" and instantiating the view controller
  PhrasesTableViewController *phrasesTVC = [[[PhrasesTableViewController alloc] initWithStyle:UITableViewStylePlain] autorelease];
  cgRct = CGRectMake(0, 120, 320, 100); //define size and position of view 
  UIView *myPhrasesView = [[UIView alloc] initWithFrame:cgRct]; //initilize the view 
  myPhrasesView.autoresizesSubviews = YES; //allow it to tweak size of elements in view 
  phrasesTVC.view = myPhrasesView; //set view property of controller to the newly created view 
  [myPhrasesView release];
  [self.view addSubview:phrasesTVC.view];
}

我只看到研究屏幕的棕色背景颜色。这两个表没有出现。我肯定会犯一些根本性的错误，因为它是iPhone开发的全新手。 BTW，WordsTableViewController和PhrasesTableViewController分别定义了TableViewController子类。

感谢您的帮助。 -Achilles

Answer 1

你为什么这样做？

UIView *myWordsView = [[UIView alloc] initWithFrame:cgRct];
myWordsView.autoresizesSubviews = YES;
wordsTVC.view = myWordsView;

你已经有效地告诉视图控制器不要使用它对UITableView的内部引用，而是使用一些空的UIView作为它的视图。

删除这些行并使用您在视图控制器视图中指定的CGRect调用setFrame。你应该看到你的表视图。像这样：

- (void)loadView {
  //creating the view for the screen "Study"
  CGRect cgRct = CGRectMake(0, 0, 320, 367); //define size and position of view 
  UIView *myStudyView = [[UIView alloc] initWithFrame:cgRct]; //initilize the view 
  myStudyView.autoresizesSubviews = YES; //allow it to tweak size of elements in view 
  myStudyView.backgroundColor = [UIColor brownColor];
  self.view = myStudyView; //set view property of controller to the newly created view 
  [myStudyView release];

  //creating the view for the "words" and instantiating the view controller
  WordsTableViewController *wordsTVC = [[[WordsTableViewController alloc] initWithStyle:UITableViewStylePlain] autorelease];
  cgRct = CGRectMake(0, 10, 320, 100);//define size and position of view
  [[wordsTVC view] setFrame:cgRct];
  [self.view addSubview:wordsTVC.view];

  //creating the view for the "phrases" and instantiating the view controller
  PhrasesTableViewController *phrasesTVC = [[[PhrasesTableViewController alloc] initWithStyle:UITableViewStylePlain] autorelease];
  cgRct = CGRectMake(0, 120, 320, 100); //define size and position of view
  [[phrasesTVC view] setFrame:cgRct];
  [self.view addSubview:phrasesTVC.view];
}

iphone以单一屏幕编程（不带xib文件）iphone

1 个答案: