IOS UITextView limit

IOS UITextView limit

 

 

 

 

// UITextVIew input box

Self. contentTV = [[UITextView alloc] initWithFrame: CGRectMake (0, lineVIewOne. frame. origin. y + lineVIewOne. frame. size. height + 1, self. view. frame. size. width, 160)];

Self. contentTV. backgroundColor = [UIColor whiteColor];

Self. contentTV. textAlignment = NSTextAlignmentLeft;

// Self. contentTV. text = @ "What problems do you encounter during use? You can give us feedback in a timely manner! ";

Self. contentTV. font = [UIFont systemFontOfSize: 14.0];

Self. contentTV. keyboardType = UIKeyboardTypeNamePhonePad;

Self. contentTV. clearsOnInsertion = YES;

[Self. view addSubview: self. contentTV];

Self. contentTV. delegate = self;

Self. placehoderLabel = [[UILabel alloc] initWithFrame: CGRectMake (0, 0, self. contentTV. frame. size. width, 30)];

Self. placehoderLabel. backgroundColor = [UIColor whiteColor];

Self. placehoderLabel. text = @ "What problems do you encounter during use? You can give us feedback in a timely manner! ";

// Self. placehoderLabel. alpha = 0.5;

// Self. placehoderLabel. textAlignment = NSTextAlignmentCenter;

Self. placehoderLabel. font = [UIFont systemFontOfSize: 13.0];

[Self. contentTV addSubview: self. placehoderLabel];

 

# Pragma mark-UITextViewDelegate

-(BOOL) textView :( UITextView *) textView shouldChangeTextInRange :( nsange) range replacementText :( NSString *) text

{

NSString * temp = [textView. text

StringByReplacingCharactersInRange: range

WithString: text];

 

NSInteger remaintextnum= 100;

// Calculate the remaining number of words that can be entered

If (range. location> = 100)

{

RemainTextNum = 0;

[Self showSimpleAlert: @ "Enter less than 100 words! "];

Self. emailFT. userInteractionEnabled = NO;

Return YES;

}

Else

{

NSString * nsTextContent = temp;

NSInteger existTextNum = [nsTextContent length];

RemainTextNum = 100-existTextNum;

Self. label = [[UILabel alloc] initWithFrame: CGRectMake (textView. frame. size. width-80, textView. frame. size. height-30, 80, 30)];

Self. label. textAlignment = NSTextAlignmentCenter;

[TextView addSubview: self. label];

Self. label. backgroundColor = [UIColor whiteColor];

Self. label. text = [NSString stringWithFormat: @ "% ld/100", (long) remainTextNum];

Return YES;

}

}

 

 

When you enter it, the label displays the remaining words.