Text View does not automatically scroll

Question

I am printing debug text to my applications text view with

- (void) updateDebugWindow:(NSString *)text {
[dbgText setText:[NSString stringWithFormat:@"%@%@\r\n",dbgText.text,text]];
}

As you can see, the next line will append to the previous so that I can see what happened in the previous step. This works fine

[self updateDebugWindow:@"Debug info"];

but when it reaches bottom it does not automatically scroll down to show the next line of text, I have to manually scroll it with my finger.

Is there some option in xcode which let the text view automatically follow the text?

trumpetlicks · Accepted Answer · 2012-07-16 12:57:25Z

2

Here is your routine re-written:

- (void) updateDebugWindow:(NSString *)text {  
    [dbgText setText:[NSString stringWithFormat:@"%@%@\r\n",dbgText.text,text]];  
    [dbgText scrollRangeToVisible:NSMakeRange([dbgText .text length], 0)];
}

This adds your text, then scrolls to the last "character" in the overall string.

answered Jul 16, 2012 at 12:57

trumpetlicks

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1 Comment

trumpetlicks Over a year ago

@Wilhelmsen - Not a problem whatsoever :-)

Madhumitha · Accepted Answer · 2012-07-16 12:49:18Z

1

Try this

NSRange selectedRange = dbgText.selectedRange;
[self updateDebugWindow:@"Debug info"];
dbgText.selectedRange = selectedRange;
dbgText.scrollEnabled = YES;

Hope it will work.

answered Jul 16, 2012 at 12:49

Madhumitha

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