title: How to replace particular character with UItextfield
body: <p>i tried all the ways but no use because of my poor logical skills... The problem is that I need to replace a word in the sentence by uitextfield, so that it looks like a blank, and that too dynamically</p>
  
  <p>For ex: Test arrives on the scene</p>
  
  <p>I need to replace "Test" in the above sentence by UItextfield, so that user can type in uitextfield. Please show me the way to replace it..  </p>
  
  <p>I used uitextview to show the question ,And the code is </p>
  
  <pre><code>UITextview   *textview = [[UITextView alloc] initWithFrame:CGRectMake(0.0, currentY, 320.0, myStringSize.height)];
  textview.text = [NSString stringWithFormat:@"%i. %@", i+1, unhide];
  textview.font = [UIFont fontWithName:@"Helvetica" size:16.0f];
  CGRect frame = textview.frame;
  frame.size.height = textview.contentSize.height;
  textview.frame = CGRectMake(0.0, currentY, 320.0, frame.size.height+20);
  textview.editable = NO;
  [scrollMain addSubview:textview];
  </code></pre>
  
  <p>Is there any way to do it...</p>
  
  <p>or Is there any way to find out the coordinates of "Test" in textview?
  Help me out guys, thanks in advance.</p>