IOS Dev (59) Highly adaptive Uitextview

IOS Dev (59) Highly adaptive Uitextview

Arri Address: Http://blog.csdn.net/prevention

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The following _inputtextview is a Uitextview instance. The first thing to do is to set its delegate, and then add uitextviewdelegate to the interface declaration of your header file.

_inputTextView.delegate = self;

The following methods are implemented in implementation:

- (void)textViewDidChange:(UITextView *)textView{    // 获取原来的 frame    CGRect tmpRect = _inputTextView.frame;    CGSize size = [_inputTextView.text sizeWithFont:[UIFont systemFontOfSize:_inputTextFontSize]                               constrainedToSize:CGSizeMake(YOUR_TEXTVIEW_WIDTH, 2000)                                   lineBreakMode:NSLineBreakByWordWrapping];    tmpRect.size.height = size.height + 20; // 20 points for padding    tmpRect.origin.y = keyboardPositionY - tmpRect.size.height;    _inputTextView.frame = tmpRect;    _inputTextView.text = _inputTextView.text;}

• Note that the your_textview_width above is the width of your uitextview.
• Note Linebreakmode selected Nslinebreakbywordwrapping, the older version is uilinebreakmodewordwrap.
• size.height + 2020 of the padding I shed.
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