如何删除UITextView底部的空格？

Question

我正在使用UITextView，我想删除UITextview底部的空格。

Answer 1

这样的东西？

textView.text = [textView.text stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]];

Answer 2

我用它更新了上面的code.try.i认为你有欲望的结果..

// Create a size with large height, but matching width to UITextView.
[myTextView setBackgroundColor:[UIColor greenColor]];
CGSize maxSize = CGSizeMake(myTextView.frame.size.width, 20);

// Determine the size needed to display the text - we just need the new height.
CGSize textSize = [myTextView.text sizeWithFont:myTextView.font constrainedToSize:maxSize lineBreakMode:UILineBreakModeWordWrap];

// Set the UITextView's frame to the new height.
CGRect textViewRect = myTextView.frame;
textViewRect.size.height = textSize.height+13;
myTextView.frame = textViewRect;

Answer 3

我假设/猜测您希望调整UITextView的大小以便很好地适应文本。如果是这样，我建议您调查：

- (CGSize)sizeWithFont:(UIFont *)font constrainedToSize:(CGSize)size lineBreakMode:(UILineBreakMode)lineBreakMode;

例如：

// Create a size with large height, but matching width to UITextView.
CGSize maxSize = CGSizeMake(myTextView.frame.size.width, 9999);

// Determine the size needed to display the text - we just need the new height.
CGSize textSize = [myTextView.text sizeWithFont:myTextView.font constrainedToSize:maxSize lineBreakMode:UILineBreakModeWordWrap];

// Set the UITextView's frame to the new height.
CGRect textViewRect = myTextView.frame;
textViewRect.size.height = textSize.height;
myTextView.frame = textViewRect;