相关疑难解决方法(0)

我已经创建了一个非常简单的演示应用来测试其功能automaticallyAdjustsScrollViewInsets,但是我的标签栏覆盖了tableView的最后一个单元格.

我的AppDelegate代码:

UITabBarController *tabControl = [[UITabBarController alloc] init];
tabControl.tabBar.translucent = YES;
testViewController *test = [[testViewController alloc] init];
[tabControl setViewControllers:@[test]];

[self.window setRootViewController:tabControl];

我的testViewController(UITableViewController的子类)代码:

- (void)viewDidLoad
{
[super viewDidLoad];
self.automaticallyAdjustsScrollViewInsets = YES;
self.tableView = [[UITableView alloc] initWithFrame:self.view.bounds];
self.tableView.dataSource = self;
self.tableView.scrollIndicatorInsets = self.tableView.contentInset;
//[self.view addSubview:self.tableView];

// Do any additional setup after loading the view.
}

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
return 20;
}

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
UITableViewCell *cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:@""];
cell.textLabel.text = @"test"; …

出于某些奇怪的原因,当设置了scrollofset时,我的UITextView文本会出现裁剪.

这是它的样子:

这样做发生在:

        textview.contentInset = UIEdgeInsetsZero;
        [textview setContentOffset:CGPointMake(0, startypos + offset_yshift) animated:NO];

我尝试手动设置contentSize.height,但这引入了另一个奇怪的行为,其中内容偏移似乎被忽略..

''编辑'':这是用于实例化文本字段的代码:

  CGRect myImageRect = CGRectMake(-50.0f, -50.0f, 40.0f, 40.0f);
  textview = [[UITextView alloc] initWithFrame: myImageRect];
  textview.autocapitalizationType = UITextAutocapitalizationTypeNone;
  [textview setScrollEnabled:YES];
  textview.hidden = YES;
  textview.contentInset = UIEdgeInsetsZero;
  textview.opaque = NO;
  textview.backgroundColor = [UIColor clearColor];
  textview.textColor = [UIColor colorWithWhite:1 alpha:1];
  textview.textAlignment = NSTextAlignmentCenter;
  textview.frame = CGRectMake(0, 0, 250, 30);
  textview.scrollEnabled = NO;

以及检查每帧内容定位的"更新"代码:

  // setting the actual size here
  UITextPosition * pos = [textview positionFromPosition: textview.endOfDocument offset:nil];
  CGRect therect = …