I'm using a UISplitViewController, with a view that has a UITextView as the master view, but the text does not load until I rotate the ipad twice.
Logging when the app starts shows that the text view is available and the text inside it (which is defined in the nib file) is also loaded properly.
What am I doing wrong?
It seems like I've found the limit to how many characters can be initially loaded into UITextView in a UIPopoverController (for portrait mode in UISplitViewController). The maximum number of characters is 621.
I thought it weird that if I override the text view in viewDidLoad with
self.textView.text = #"hello";
it would work, but loading the text from the nib as is didn't. Through some trial and error, it seems like 621 is the maximum number characters before the text view doesn't show upon initial load.
Using a UIWebView and loading the content in code fixes this.
Related
Im having trouble resizing content inside static cells to fit different iPhone screen sizes.
Looking at the image below you can see that the UIPickerView and Sign In UILabel both did not resize in width.
I've tried adding code to the ViewDidLoad like so
self.signUp.frame = CGRectMake(0,0,self.view.frame.size.width,self.signUp.frame.size.height);to programmatically adjust their sizes but nothing changed.
I also tried adding equal width constraints to make it match the UITableViewCell contentView width and that did nothing as well.
Same issues happens to all UILabels (Membership,Schedule,Method...) and UITextFields (Comments)
This is all occurring in a UITableViewController.
How can I get it to resize?
Apples freeform UIViewController and UITableView are externally useful in this circumstance.
If you design your app in the storyboard, before applying constraints make sure the UIViewController's size is freeform (big square that doesn't match any screen size).
Then add constrains.
When you run the app, the app will resize properly.
How do I tell an NSScrollView that wraps an NSTextView to grow with the NSTextView until a maximum?
== In more details:
The UI is common in many messanger/chat app. Initially, the NSTextView is empty and has just enough height to show one line of text. The NSScrollView is just enough to fit the NSTextView. As the user type in more text, the NSScrollView should grow along with the NSTextView, until reaching a maximum height, then start showing the vertical scroll bar.
Observe NSTextStorageDidProcessEditingNotification on the text storage of the text view. Then call usedRectForTextContainer on the layout manager to determine how large the text is for the view's text container.
You may also need to add extraLineFragmentRect to it, I'm not sure. That's also available from the layout manager.
Using Autolayout and Interface Builder with the target device being iOS 7 iPhones, how do I create three of these kind of UIButtons that have an image, a divider line and text? The 3 images for each of the buttons all have the same size. The lines and text in one button must line up with the other buttons' line and text (left align the text). Things can't go crazy if the phone is turned to landscape. All buttons are the same constant size.
The buttons are part of a home screen layout which has a logo at the top and so on. When one taps one of the buttons, the app does something.
One thought was to create a button with no text, put a label on top, a thin view for the line on top, and the uiimageview on top. Maybe explicit layout constraints are not even needed? Maybe a containing view is needed for the "button" contents to keep the "button" pieces together?
Image+text can be achieved using UIButton only without adding any autolayout constraints. You set both image and text using -setImage:forState and -setTitle:forState:, and then adjust button insets using *Insets properties. To set the insets properly, play with this great test project: https://github.com/jrturton/ButtonInsets (it's not quite clear from the docs how to use them simultaneously, and this test app should give you the idea).
As for the separator, I'd recommend adding it directly to your images.
But if you don't want to stick to the UIButton and its insets, you can subclass UIView, add 2 UIImageViews (the actual image and the separator), a UILabel, and throw in a couple of constraints. To make the view clickable, you attach a UITapGestureRecognizer to it.
I am trying to initiate a scroll view in my UITextView and even though I seem to have selected the appropriate boxes, I can't seem to get the scrolling working. I have gone through multiple questions similar to this but none seem to have the answer.
I included an image of Xcode below:
Question 2: When I scroll down the majority of my text shows but the scrolling stops with two sentences or so left and I have to scroll down and hold it there to read. Any way I can fix this so it scrolls all the way to the bottom of the text?
Can you check the two boxes: Bounce Horizontally and Bounce Vertically and see what's happening? Sometimes your content are actually way bigger than your view, and they are touching a invisible outer box. If you can see they actually move, that means there is nothing wrong with touch or scroll, is just the view layout problem.
For the content issue, my guess is that the content size is not right, you can programmatically adjust it with textView.frame property, set it to a proper size, such as the frame of the window or the frame of the content, which are CGRect classes. Comment below to see if this can solve your second problem.
The text view will not scroll in storyboard, only the app. And the text view will scroll once the content in the text view exceeds the frame size.
If you're using iOS 7+, you can just turn on auto layout, pin each of the sides of the text view to the edge of its parent view, and it works fine without needing to do anything in code.
I need to create a scrollable composite view on iOS. That is to say, the view will contain at least one image, possibly a button, and some text (that we may wish to format with bold fonts, etc). The amount of data, and particularly the amount of text, is variable, from maybe 4 lines to maybe 100. The data is "variable" to a degree, and in particular the image and text do not come joined at the hip.
This all needs to fit in a "pane" of about 280h x 115w pixels in a portrait-only layout.
A single UITextView doesn't provide the facilities to display an image or format the text.
A UIWebView provides the ability to display the image and formatted text, but the button is a problem (not even sure if it's doable).
A UIScrollView would easily allow the image and button, and then a UIWebView could be embedded in the scroll view for the text, but then scrolling becomes a problem -- I'd like the entire view to scroll as one, without having to resize the web view to contain it's content, and without the confusion of a scrollable within a scrollable (the doc warns of "unexpected behavior").
(I'm guessing your thoughts at this point are that I want too much.)
So, any suggestions? What's the best way to get close to what I need here?
In iOS5 the UIWebView has a scrollView property, which is a normal UIScrollView. You should be able to add a UIButton as a subview of the scrollView to achieve what you want, although positioning it correctly may be a challenge. Prior to iOS5 you could cycle through the subviews of the UIWebView to find the UIScrollView with isKindOfClass...
I suggest testing with a UIWebView inside your UIScrollView. I don't see any interference in the iOS 5.0 simulator. I don't know if there are problems in iOS 4.0.
If you find that there is interference, you can prevent it by setting the web view's userInteractionEnabled property to NO, either in the nib or in code. This will prevent the web view from receiving any touches, so the user also won't be able to pinch-zoom it, follow links in it, or copy text from it.
In the web view's delegate, implement webViewDidFinishLoad: to set the web view's size and the scroll view's contentSize. For example:
- (void)webViewDidFinishLoad:(UIWebView *)webView {
CGRect frame = self.webView.frame;
frame.size = [self.webView sizeThatFits:CGSizeMake(frame.size.width, HUGE_VALF)];
self.webView.frame = frame;
self.scrollView.contentSize = CGSizeMake(CGRectGetMaxX(frame), CGRectGetMaxY(frame));
}
When I did a similar thing, I had a dozen of views which I added to the UIScrollView and then calculated the frames of all the views. Granted, it was an extremely tedious work, given that some views could get hidden under various conditions. The layout code was actually pretty simple, laying out views from top to bottom, but ugly. The upshot is that it works like a charm, fast and reliably. You can even trivially wrap it in an animation block.