iOS 7 - UITextView size font to fit all text into view (no scroll)

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Happy的楠姐
Happy的楠姐 2021-02-12 22:58

I am trying to find a non-deprecated method to size the font of a textview down so that all text fits in the textview without requiring scrolling.

The method \'sizeWithF

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  •  滥情空心
    2021-02-12 23:14

    I had to do the same but then with programmatically added AutoLayout constraints (NSLayoutConstraint). Because of the constraints the contentSize wasn't correct for the most time causing the UITextView to scroll :/ To still get the correct font size I ended up just creating a new UITextView for the sake of doing some good ol' trial and error testing and getting it through there.

    Pretty simple but like with everything you just gotta come up with it :)

    NSInteger fontSize = 200;
    
    UITextView *testTextView = [[UITextView alloc] init];
    testTextView.text = self.myRealTextView.text;
    testTextView.font = [UIFont fontWithName:@"AldotheApache" size:fontSize];
    while ([testTextView sizeThatFits:(CGSizeMake(self.myRealTextView.frame.size.width, FLT_MAX))].height >= self.myRealTextView.frame.size.height ) {
        fontSize -= 0.5;
        testTextView.font = [UIFont fontWithName:@"AldotheApache" size:fontSize];
    }
    
    NSLog(@"Correct font size is: %ld",(long)fontSize);
    
    self.myRealTextView.font = [UIFont fontWithName:@"AldotheApache" size:fontSize];
    

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