I want to have a text-send view like the send-email view from the email app by apple. (the default iPhone emailapp).
I tried a UIScrollView with 2 TextFields and 1 TextView, but it looks not good, the scrollview has no function and the view does not scroll when I enter a text in the TextView (the text is hiding in the third line when I type...
Here is a picture:
http://s3.imgimg.de/uploads/Bildschirmfoto20110823um1156940f792556940f791456940f79png.png
It should look like this:
http://a5.mzstatic.com/us/r1000/032/Purple/ea/4f/03/mzl.bxracfen.320x480-75.jpg
How to rebuild?
to scroll downside when you start writing the text inside UITextfield, use this :
[yourScrollView scrollRectToVisible:CGRectMake(yourTextfield.frame.origin.x,yourTextField.frame.origin.y,yourScrollView.frame.size.width,yourScrollView.frame.size.height) animated:YES];
Also, when you edit your TextView (i.e in the textViewDidBeginEditing method), make its frame smaller so as to make it fully visible. Then, when you finish editing the text (i.e in the textViewDidEndEditing method) set the frame to whatever it was, originally.
EDIT:
//add this in .h file
NSInteger originalHeight;
//in .m file
- (void) textViewDidBeginEditing:(UITextView *)textView
{
[yourScrollView scrollRectToVisible:CGRectMake(yourTextView.frame.origin.x,yourTextView.frame.origin.y,yourScrollView.frame.size.width,yourScrollView.frame.size.height) animated:YES];
//now set the frame
//you just need to change the height, rest can be kept whatever they are
//set the newHeight so as to make the textview visible
originalHeight = yourTextView.frame.size.height;
yourTextView.frame = CGRectMake(x,y,width,newHeight);
//rest of the code
}
Now when editing is completed, set the height to as it was before.
- (void) textViewDidEndEditing:(UITextView *)textView
{
yourTextView.frame = CGRectMake(x,y,width,originalHeight);
}
I have seen this question being addressed several times here at SO, e.g Problem with UIScrollView Content Offset, but I´m still not able to solve it.
My iphone app is basically a tab bar controller with navigation bar. I have a tableview controller made programmatically and a DetailViewController that slides in when I tap a cell in my tableview controller.
The DetailViewController is made in IB and has the following hierarchy:
top view => UIScrollView => UIView => UIImage and a UITextField.
My goal is to be able to scroll the image and text field and this works well. The problem is that my UIScrollView always gets positioned at the bottom instead at the top.
After recommendations her at SO, I have made my UIScrollView same size as the top view and instead made the UIView with the max height (1500) of my variable contents.
In ViewDidLoad I set the contentSize for the UIScrollView (as this is not accessible from IB):
- (void)viewDidLoad {
[scrollView setContentSize:CGSizeMake(320, 1500)];
[scrollView setContentOffset:CGPointMake(0, 0) animated:YES];
NSLog(#"viewDidLoad: contentOffset y: %f",[scrollView contentOffset].y);
}
Specifically setting the contentOffset, I would expect my scrollView to always end up at the top. Instead it always go to the bottom. It looks to me that there is some autoscrolling beyond my control taking place after this method.
My read back of the contentOffset looks OK. It looks to me that there may be some timing related issues as the scrolling result may vary whether animation is YES or NO.
A ugly workaround I have found is by using this delegate method:
- (void)scrollViewDidEndScrollingAnimation:(UIScrollView *)scrView {
NSLog(#"Prog. scrolling ended");
[scrollView setContentOffset:CGPointMake(0, 0) animated:YES];
}
This brings my scrollview to top, but makes it bounce down and up like a yo-yo
Another clue might be that although my instance variables for the IBOutlet are set before I push the view controller, the first time comes up with empty image and textfield:
-(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
if (!detailViewController) {
detailViewController = [[DayDetailViewController alloc] init];
}
// Pass dictionary for the selected event to next controller
NSDictionary *dict = [eventsDay objectAtIndex:[indexPath row]];
// This method sets values for the image and textfield outlets
[detailViewController setEventDictionary:dict];
// Push it onto the top of the navigation controller´s stack.
[[self navigationController] pushViewController:detailViewController animated:NO];
}
If I set animation to YES, and switch the order of the IBOutlet setting and pushViewController, I can avoid the emptiness upon initialization. Why?
Any help with these matters are highly appreciated, as this is really driving me nuts!
Inspired of Ponchotg´s description of a programmatically approach, I decided to skip interface builder. The result was in some way disappointing: The same problem, with the scrollview ending up in unpredictable positions (mostly at bottom), persisted.
However, I noticed that the scroll offset error was much smaller. I think this is related to the now dynamic (and generally smaller) value of ContentOffset. After some blind experimenting I ended up setting
[textView setScrollEnabled:YES];
This was previously set to NO, as the UITextView is placed inside the scrollview, which should take care of the scrolling. (In my initial question, I have erroneously said it was a UITextField, that was wrong)
With this change my problem disappeared, I was simply not able to get into the situation with scrollview appearing at bottom anymore in the simulator! (At my 3G device I have seen a slight offset appear very seldom, but this is easily fixed with scrollViewDidEndScrollingAnimation delegate described previously ).
I consider this as solved now, but would appreciate if anyone understand why this little detail messes up things?
OK! i have a question before i can give a correct answer.
Why are you using a UIView inside the Scrollview?
You can always only put your UIImageView and UITextField inside the UIScrollView without the UIView
and set the contentSize dynamically depending on the size of the text.
to give you an example how i do it:
int contSize = 0;
imageView.frame = CGRectMake(10, 0, 300, 190);
imageView.image = [UIImage imageNamed:#"yourimage"];
contSize = 190 //or add extra space if you dont want your image and your text to be so close
[textField setScrollEnabled:NO];
textField.font = [UIFont systemFontOfSize:15];
textField.textColor = [UIColor grayColor];
textField.text = #"YOUR TEXT";
[textField setEditable:NO];
textField.frame = CGRectMake(5, contSize, 310, 34);
CGRect frameText = textField.frame;
frameText.size.height = textField.contentSize.height;
textField.frame = frameText;
contSize += (textField.contentSize.height);
[scrollView setScrollEnabled:YES];
[scrolView setContentSize:CGSizeMake(320, contSize)];
In the above example I first create an int to keep track of the ysize of my view then Give settings and the image to my UIImageView and add that number to my int then i give settings and text to my UITextField and then i calculate the size of my text depending on how long is my text and the size of my font, then add that to my int and finally assign the contentSize of my ScrollView to match my int.
That way the size of your scrollview will always match your view, and the scrollView will always be at top.
But if you don't want to do all this, you can allways just:
[scrollView setContentOffset:CGPointMake(0, 0) animated:NO];
at the end of the code where you set your image and your text, and the NOto avoid the bouncing.
Hope this helps.
I met a really strange problem while using UITextView, I try to use "GrowStyle" of UITextView, wire up the frame with contentSize, turn off the .scrollEnabled, Build & Run: but when click the bottom of the screen, the keyboard showing up, the UITextView moves up a short distance, and its Top lines disappear, here is the code:
- (void)viewDidLoad {
[super viewDidLoad];
//Turn off the scrollEnabled.
UITextView *growStyleText.scrollEnabled = NO;
//Wire the growStyleText's contentSize to its frame, let it grow.
CGRect selfHack = growStyleText.frame;
selfHack.size = growStyleText.contentSize;
growStyleText.frame = selfHack;
//Make a UIScrollView
UIScrollView *scroll.contentSize = selfHack.size;
scroll.clipsToBounds = NO;
[self.view insertSubview:scroll atIndex:1];
//Add the TextView on the ScrollView, make it scrollable.
[scroll addSubview:growStyleText];
}
After click the last line, Keyboard shows up, then the Top line Disappears! I thought about for all day long, anybody seen this? how can I make Top line moves up instead of disappear? hard question for me, guess there may be simple answers, thank you, very much.
I don't know what you are trying to do, but, since UITextView is a subclass of UIScrollView, why do you need to create it as a subview of a UIScrollView?
Then, in my experience, you can't get the contentSize of a UIScrollView before you add it to a view.
I found this answer very useful
How do I size a UITextView to its content?
Hope it helps.
I am new to iphone dev and I'm trying to create a "bookmark" in an NON-editable UITextView. More specifically - I go to the view with the UITextView, scroll maybe halfway(or to some other point) through the text, leave that view and when I come back the UITextView is showing where I left off.
I have everything figured out except how to 'capture' the point that the NON-editable UITextView is scrolled to when leaving the view. I've tried selectedRange in viewWillDisappear in every way I could think of.
Any ideas on this would be greatly appreciated, I've been struggling for almost two days.
I hope I'm explaining that clearly enough.
Thanks in advance!!
GL
h
UITextView *txtView;
CGPoint position;
m
-
-(void) savePosition
{
position = txtView.contentOffset;
}
-(void) restorePosition
{
CGRect r = CGRectMake(position.x, position.y, txtView.contentSize.width, txtView.contentSize.height);
[txtView scrollRectToVisible: r animated: NO];
}
I have a UITableView with an Index on the side; I want to add a UISearchBar to it, but the index overlaps with the "x" to clear the search. I've noticed in the Contacts application, the textfield within the UISearchBar is resized to accommodate this, but I can't work out how to do this in my own app.
I have tried the following in my viewDidLoad, but it does not seem to work.
UITextField * textField = (UITextField *)[[self.search subviews] objectAtIndex:0];
CGRect r = textField.frame;
[textField setFrame:CGRectMake(r.origin.x, r.origin.y, r.size.height, r.size.width-30)];
Any ideas?
it's much easier than all these suggestions. In interface builder, instead of putting the Search Bar as the header of your Table View, you can put a View instead. Then, put a Navigation Bar inside this View. Grab the left resizing handle of the Navigation Bar and pull it to the right until the N B is only 25 pixels wide. Clear out the Title in the N B (double click to select it, then delete). Then, add a Search Bar into the same View. Move its right resizing handle to the left, adjust so that it abuts the N B. That's it.
You can enable a cancel button if you want too and it also won't overlap the index (remains within the search bar).
Apparently a Table View can only have 1 subview in its header, that's why you need to put the View first, then the N B and Search Bar inside it.
UPDATE: see Beginning iPhone Development from Apress, p. 241 of SDK 3 edition. You just disable the index while searching.
- (NSArray *)sectionIndexTitlesForTableView:(UITableView *)tableView {
if (isSearching) {
return nil;
}
return keys;
}
Also they talk about adding a magnifying glass to the top of the index.
Great book all around.
Why not just make the actual UISearchBar smaller horizontally, and place an (empty) UINavigationBar to the right of it? They will render the exact same background.
Better than hacking the internals of Apple's objects that could change.
Also, when animating the UISearchBar's width, you'll notice that the inner text field is not animated along with it. You can fix this by calling UISearchBar's "layoutSubviews" within your animation block after changing its frame. (that's where it determines the size of the inner text field)
Ok, I've come up with a solution.
Create a subclass of UISearchBar
Include this code in the drawRect: method.
UITextView * textField = [self.subviews objectAtIndex:0];
textField.frame = CGRectMake(5, 6, (310 - kRightSideMargin), 31);
[super drawRect:rect];
Note: kRightSideMargin is a constant I set in my header file; I have it set to 25.
Thanks for the suggestions from everyone else.
As Padraig pointed out all you have to do is subclass out the searchBar. Create your UISearchBar subclass, and add the following code into the layoutSubviews method:
- (void)layoutSubviews
{
UITextField *searchField;
for(int i = 0; i < [self.subviews count]; i++)
{
if([[self.subviews objectAtIndex:i] isKindOfClass:[UITextField class]])
{
searchField = [self.subviews objectAtIndex:i];
}
}
if(!(searchField == nil))
{
searchField.frame = CGRectMake(4, 5, 285, 30);
}
}
This loops through all the subviews and checks them against type UITextField. That way if it ever moves in its line up of subviews this will still grab it. I found 285 to just wide enough not to overlap with the index of my tableView.
As of iOS 6, the navigation bar solution didn't work well for me because of slightly different looks now between the UISearchBar and UINavigationBar. So, I switched to something similar to Padraig's approach by subclassing the UISearchBar.
#interface SearchBarWithPad : UISearchBar
#end
#implementation SearchBarWithPad
- (void) layoutSubviews {
[super layoutSubviews];
NSInteger pad = 50;
for (UIView *view in self.subviews) {
if ([view isKindOfClass: [UITextField class]])
view.frame = CGRectMake (view.frame.origin.x, view.frame.origin.y, view.frame.size.width - pad, view.frame.size.height);
}
}
#end
Edit: Ah, I haven't tried it, but I think you might be able to set a navigation bar's clipToBounds = YES to turn off it's new shadow, thereby creating a consistent look again between the two controls.
I am using ViewDeck and want to show a UISearchbar inside the leftController.
Now the problem is if I open the left side which contains the navigation, the right bit overlaps my search field.
I got rid of this by over writing UISearchBar, the textfield will always have the same width, but in one case there is the ViewDeck overlapping and in the other case I hide the ViewDeck-bit and then the cancel button will take up the space:
Subclassing UISearchBar
#import "ViewDeckSearchBar.h"
#define kViewDeckPadding 55
#interface ViewDeckSearchBar()
#property (readonly) UITextField *textField;
#end
#implementation ViewDeckSearchBar
static CGRect initialTextFieldFrame;
- (void) layoutSubviews {
[super layoutSubviews];
// Store the initial frame for the the text field
static dispatch_once_t onceToken;
dispatch_once(&onceToken, ^{
initialTextFieldFrame = self.textField.frame;
});
[self updateTextFieldFrame];
}
-(void)updateTextFieldFrame{
int width = initialTextFieldFrame.size.width - (kViewDeckPadding + 6);
CGRect newFrame = CGRectMake (self.textField.frame.origin.x,
self.textField.frame.origin.y,
width,
self.textField.frame.size.height);
self.textField.frame = newFrame;
}
-(UITextField *)textField{
for (UIView *view in self.subviews) {
if ([view isKindOfClass: [UITextField class]]){
return (UITextField *)view;
}
}
return nil;
}
#end
ViewController class
In my Navigation class I need to overwrite these two UISearchbarDelegate methods in order to go to fullscreen with the search results:
- (void)searchBarTextDidBeginEditing:(UISearchBar *)searchBar{
[self.viewDeckController setLeftSize:0];
// I am also using scopes, which works fine (they fade out when not searching)
self.searchBar.scopeButtonTitles = #[#"Food",
#"Beverages",
#"Misc"];
}
-(void)searchBarTextDidEndEditing:(UISearchBar *)searchBar{
self.viewDeckController.leftSize = 55;
}
Result
ViewDeck showing to the right:
(source: minus.com)
Search in Fullscreen (The button and the scope buttons are animated in).
(source: minus.com)
searchBar.layoutMargins = UIEdgeInsetsMake(0, 0, 0, rightPad);
My old solution of changing the UITextField frame stopped working in iOS 13. Putting a UINavigationBar to the right of the UISearchBar never worked well for me as they had different looks at top and bottom.
Sorry to drag this all up again.
I wanted the UISearchBar to be shorter, and I'm using a UISearchBarController, but without actually wanting the index. This is because I have an overlay to the right:
To do this, I fake a sectionIndex with one blank item, then hide it. Here's how I do that:
- (void)hideTableIndex {
for (UIView *view in [tableView subviews]) {
if ([view isKindOfClass:NSClassFromString(#"UITableViewIndex")]) {
view.hidden = YES;
}
}
}
- (NSArray *)sectionIndexTitlesForTableView:(UITableView *)aTableView {
if (aTableView == self.searchDisplayController.searchResultsTableView) {
return nil;
} else {
[self performSelector:#selector(hideTableIndex) withObject:nil afterDelay:0];
return [NSArray arrayWithObjects:#"", nil];
}
}
- (NSInteger)tableView:(UITableView *)tableView sectionForSectionIndexTitle:(NSString *)title atIndex:(NSInteger)index {
return 0;
}
This shortens the the UISearchBar and hides the index so it can't be tapped (a small section would otherwise hand to the left of the overlay that when tapped would scroll the UITableView to the top). Like this:
Best of all, when you use the search, you still get the full width bar:
Just put a UIView and put the search bar inside that UIView. UIView must be of same size as UISearchBar.
this worked for me.
The text field used in UISearchBar is a subclass of UITextField called UISearchBarTextField.
AFAIK, there's no way to resize a UISearchBarTextField using the public API, and the private API doesn't reveal much either.
Maybe you can take a look at UISearchBarTextField's subviews, if it has any.
UPDATE: It doesn't.
UPDATE 2: I think you should take a look at UITextField's rightView property. The below code, although it doesn't work, seems like a good starting point:
UIView *emptyView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 25, 25)];
[textField setRightView:emptyView];
[textField setRightViewMode:UITextFieldViewModeAlways];
[emptyView release];
Sorry for Necroposting, but I found another way to make a little space on the right of the textfield.
I was having the problem, that I had an indexed tableview with a searchbar as the first row. Now the index and the searchbar (made in IB, btw.) were overlapping. It tried almost everything with no success. It seems that the width and height properties of the textifield don't respond... So I came up with this:
searchBar.showsCancelButton = YES;
UIView *cButton = [searchBar.subviews objectAtIndex:2];
cButton.hidden = YES;
I still can't adjust the size of the space, but this does it for now... although... pretty weird solution...
Everyone has provided ways to modify the UI. I have discovered how to obtain identical results. You must provide the following two implementations:
Use UISearchDisplayController
More importantly, make sure you initialize it with:
- (id)initWithSearchBar:(UISearchBar *)searchBar contentsController:(UIViewController *)viewController
Failure to set a valid UISearchBar (or passing nil) will prevent the adjustment of the UITextField for the index.
You must return a valid array of titles by implementing:
- (NSArray *)sectionIndexTitlesForTableView:(UITableView *)tableView;
If you return nil, the index will not be displayed, and the UITextField will not be properly adjusted.
I've submitted a bug report to Apple, suggesting that it seems logical that only #2 should be required, not #1. I have found nothing in the Human Interface Guideline (iPhone HIG) requiring use of the UISearchDisplayController.
The key is to use the "Search Bar and Search Display Controller" and not the "Search Bar" when using Interface Builder.
It kind of looks as though Apple resize the view (note that the index is animated to the right, off screen), making it bigger than the screen.
I would imagine that you'd need to implement the searchBarTextDidBeginEditing: method of the UISearchBarDelegate to trigger this at the appropriate point. This does, however, feel a bit hacky do maybe there's a better way of doing it.
Another appraoch (though tedious) would be to resize the search bar and fill the 'gap' with a navigation bar. Works for me.
What I've come up with isn't too much better. Basically, I make an empty view with the frame that I want to use for the search bar. Then I create a UIToolbar to go behind the search bar. Be sure to set its frame to the same frame as the UIView, except that the Y value has to be -1; otherwise, you'll get two borders drawn at the top. Next create your UISearchBar, but set the frame's width to 30 (or whatever makes sense for your app) less than the UIView. Add them as subviews and set your UIView as the tableHeaderView.
I followed Mike's advice by making a UIView, then putting a Navigation Bar and UISearch Bar inside it. Only problem is first time the search bar is shown its background is the same as a Navigation Bar normally?
Interestingly, if I activate the search, then click cancel the background of this 'fixed'!?
I'm using SDK 3.0, so I removed the UISearchBar item made when I dragged a UISearchDisplayController in to my NIB, then made the view as described above and wired it up to the file owner and the searchBar outlet in the search display controller.
It work fine!!!
[searchBar setContentInset:UIEdgeInsetsMake(5, 0, 5, 35)];