URLs and Images in TTStyledText - iphone

Hi i created a TTStyledTextLabel, works well.
Now i want to make URL clickable, i've done this:
textLabel.text = [TTStyledText textFromXHTML:[content objectForKey:#"content"] lineBreaks:YES URLs:YES];
but my links are still unclickable. Do i have to setup a UIWebView first? Where to declare it?
Another thing is, is it possible to resize Images inside my TTStyledTextLabel to fit them to the Label Size?
Thanks in advance
// edit
what i have exactly done:
textLabel = [[TTStyledTextLabel alloc] initWithFrame:CGRectMake(0.0f, 70.0f, 320.0f, 297.0f)];
textLabel.contentInset = UIEdgeInsetsMake(20, 15, 20, 15);
textLabel.font = [UIFont systemFontOfSize:14];
textLabel.text = [TTStyledText textFromXHTML:[content objectForKey:#"content"] lineBreaks:YES URLs:YES];
[textLabel sizeToFit];
//CGFloat height = textLabel.height;
[scrollView addSubview:textLabel];
scrollView.contentSize = textLabel.frame.size;
an NSLog of my [content objectForKey:#"content"] returns something like this:
Download-Link
My Links are highlighted in my label, but they are unclickable.
i initialized my textlabel in - (void)viewDidLoad in a UIViewController

the [content objectForKey:#"content"] should return data containing string to display
if you'll add the url to TTURLMap it will also open the relevant controller
the following code snippet should work
self = [super init];
TTStyledTextLabel* label = [[[TTStyledTextLabel alloc] initWithFrame:CGRectMake(0, 0, 320, 230)] autorelease];
label.text = [TTStyledText textFromXHTML:#"link text" lineBreaks:YES URLs:YES];
[label setFont:[UIFont systemFontOfSize:16]];
[[self view] addSubview:label];
//edit
So you probably need to map "*" in the URLMap if you are using the TTNavigator, something like:
TTNavigator* navigator = [TTNavigator navigator];
navigator.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
[navigator.window makeKeyAndVisible];
TTURLMap* map = navigator.URLMap;
[map from:#"*" toViewController:[TTWebController class]];
this will map all of the urls to the TTWebController which will open a webview to browse in

I've same problem.Try to use
[navigator setRootViewController:"your main controller";]
It's work for me.

Related

How to set font to ALL of my text field?

I have this code and it's working :
[_fieldEmail setFont:[UIFont fontWithName:#"ABeeZee-Regular" size:14]];
[_fieldPassword setFont:[UIFont fontWithName:#"ABeeZee-Regular" size:14]];
[_fieldRegisterName setFont:[UIFont fontWithName:#"ABeeZee-Regular" size:14]];
[_fieldRegisterEmail setFont:[UIFont fontWithName:#"ABeeZee-Regular" size:14]];
[_fieldRegisterPassword setFont:[UIFont fontWithName:#"ABeeZee-Regular" size:14]];
[_titleLogin setFont:[UIFont fontWithName:#"Raleway-ExtraLight" size:28]];
[_titleRegister setFont:[UIFont fontWithName:#"Raleway-ExtraLight" size:28]];
[_titleVote setFont:[UIFont fontWithName:#"Raleway-ExtraLight" size:28]];
also I have this code to apply padding left and padding right for each text field that I have :
UIView *fieldEmail = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 10, 10)];
_fieldEmail.leftViewMode = UITextFieldViewModeAlways;
_fieldEmail.leftView = fieldEmail;
UIView *fieldPassword = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 10, 10)];
_fieldPassword.leftViewMode = UITextFieldViewModeAlways;
_fieldPassword.leftView = fieldPassword;
UIView *fieldRegisterName = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 10, 10)];
_fieldRegisterName.leftViewMode = UITextFieldViewModeAlways;
_fieldRegisterName.leftView = fieldRegisterName;
UIView *fieldRegisterEmail = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 10, 10)];
_fieldRegisterEmail.leftViewMode = UITextFieldViewModeAlways;
_fieldRegisterEmail.leftView = fieldRegisterEmail;
UIView *fieldRegisterPassword = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 10, 10)];
_fieldRegisterPassword.leftViewMode = UITextFieldViewModeAlways;
_fieldRegisterPassword.leftView = fieldRegisterPassword;
but I think it's an ugly code. because I have to set every text field and label one by one. Is it any better way to simplify this?
thank you very much..
I wouldn't do this way. If you check your code, you have a lot of similar pattern for your TextField.
Why don't create customTextField which is inherited from UITextField? And then, what you need is set font, leftViewMode and leftView in your customTextField class. When use it, just alloc with frame. Done!
In iOS 5 and later you can use the UIAppearance API to give a consistent style to your controls. Which iOS framework are you targeting?
OR
As suggested by Brain you can create a custom TextField and use that instead of UITextField. Your custom TextField would of course inherit from the UITextField but it will change different properties which you desire.
Make two arrays:
NSArray* fields= #[ _fieldEmail, _fieldPassword, _fieldRegisterName, _fieldRegisterEmail, _fieldRegisterPassword ];
NSArray* titles = #[ _titleLogin, _titleRegister, _titleVote ];
Then use makeObjectsPerformSelector:withObject: to execute a method call on all the array objects:
UIFont* font1= [UIFont fontWithName: #"ABeeZee-Regular" size: 14];
UIFont* font2= [UIFont fontWithName:#"Raleway-ExtraLight" size:28];
[fields makeObjectsPerformSelector: #selector(setFont:) withObject: font1];
[titles makeObjectsPerformSelector: #selector(setFont:) withObject: font2];
As for the second task you can simply use iteration and put the created UIView objects in a mutable array, if you need to use them later. If you want call them by name, then also a dictionary is a good idea:
NSArray* keys= #[ #"fieldEmail", #"fieldPassword", #"fieldRegisterName", #"fieldRegisterEmail", "fieldRegisterPassword" ];
NSMutableDictionary* fieldsDict= [[NSMutableDictionary alloc] init];
for(NSString* key in keys) {
UIView* field= [[UIView alloc] initWithFrame:CGRectMake(0, 0, 10, 10)];
field.leftViewMode= UITextFieldViewModeAlways;
field.leftView= field; // I hope that this property is weak
[fieldsDict setObject: field forKey: key];
}
You could try to loop through all the subviews and check if they are an instance of UITextField or any subclass of UITextField. If they are, you can set the font property.
I quickly wrote some sample code to show you how you could do this:
for (UIView *subview in [[self view] subviews]) {
if ([subview isKindOfClass:[UITextField class]]) {
UITextField *textField = (UITextField *)subview;
[textField setFont:[UIFont fontWithName:#"ABeeZee-Regular" size:14.f]];
}
}
Be aware of the fact that this code only loops through the 'closest' children of [self view] and thus won't modify views deeper in the hierarchy.

Preload circle for UITableView

I search for a lot forums but nothing found, my problem is that
I need preload some data from the web to load to the UITableView.
I saw some apps solved this problem, when show UITableView they shows "waiting circle" as modal view and after data is loaded just hide this circle.
Is there simple solution to do this?
What I need to do?
What kind of Request do I need: synchronius or asynchronius?
How to show this circle, do I need to show animatedGif or there is some internal/external control for this?
You need to make a NSThread for your "waiting circle"-(Activity Indicator).
1)Threads How do I create an NSThread that isn't the main thread.
2)Activity Indicator How to use activity indicator view.
- (void)showWaitingView {
NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
CGRect frame = CGRectMake(90, 190, 32, 32);
UIActivityIndicatorView* progressInd = [[UIActivityIndicatorView alloc] initWithFrame:frame];
[progressInd startAnimating];
progressInd.activityIndicatorViewStyle = UIActivityIndicatorViewStyleWhiteLarge;
frame = CGRectMake(130, 193, 140, 30);
UILabel *waitingLable = [[UILabel alloc] initWithFrame:frame];
waitingLable.text = #"Processing...";
waitingLable.textColor = [UIColor whiteColor];
waitingLable.font = [UIFont systemFontOfSize:20];;
waitingLable.backgroundColor = [UIColor clearColor];
frame = [[UIScreen mainScreen] applicationFrame];
UIView *theView = [[UIView alloc] initWithFrame:frame];
theView.backgroundColor = [UIColor blackColor];
theView.alpha = 0.7;
theView.tag = 999;
[theView addSubview:progressInd];
[theView addSubview:waitingLable];
[progressInd release];
[waitingLable release];
[window addSubview:[theView autorelease]];
[window bringSubviewToFront:theView];
[pool drain];
}
- (void)removeWaitingView {
UIView *v = [window viewWithTag:999];
if(v) [v removeFromSuperview];
}

iPhone viewForHeaderInSection

I have an application with navigation controller and some table view controller. In table view controller I have a two section header my definitions:
- (UIView *)tableView:(UITableView *)tableView viewForHeaderInSection:(NSInteger)section
{
if (section == 0) {
UIView* customView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, tableView.bounds.size.width, 74)];
UIImageView *myImageView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:#"toolbarTopBack.png"]];
UILabel *headline = [[UILabel alloc] initWithFrame:CGRectMake(11, 14, 305, 21)];
headline.backgroundColor = [UIColor clearColor];
headline.textColor = [UIColor whiteColor];
headline.font = [UIFont fontWithName:#"Helvetica Neue" size:21];
headline.text = searchPosition;
UILabel *subHeadline = [[UILabel alloc] initWithFrame:CGRectMake(11, 36, 305, 21)];
subHeadline.backgroundColor = [UIColor clearColor];
subHeadline.textColor = [UIColor grayColor];
subHeadline.font = [UIFont fontWithName:#"Helvetica Neue" size:16];
subHeadline.text = searchRegion;
[customView addSubview:myImageView];
[customView addSubview:headline];
[customView addSubview:subHeadline];
return customView;
} else {
// create the parent view that will hold header Label
UIView *customView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, tableView.bounds.size.width, 44)];
customView.userInteractionEnabled = YES;
UIImageView *myImageView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:#"mainToolBar.png"]];
UIToolbar *topToolbar = [[UIToolbar alloc] initWithFrame:CGRectMake(0, 0, tableView.bounds.size.width, 44)];
topToolbar.barStyle = UIBarStyleDefault;
[topToolbar setBackgroundColor:[UIColor clearColor]];
static dispatch_once_t onceToken; dispatch_once(&onceToken, ^{
NSMutableDictionary *appSettingsData = [[NSMutableDictionary alloc] initWithDictionary:[appDelegate getAppStrings]];
NSArray *segmentItems = [NSArray arrayWithObjects:[NSString stringWithFormat:#"%# (%d)", [appSettingsData valueForKey:#"segmentButton4"], listCountOffers], [NSString stringWithFormat:#"%# (%d)", [appSettingsData valueForKey:#"segmentButton5"], [[appDelegate comunication] getSimilarCount:[appDelegate getCurrentCI] idPosition:idPosition idRegion:idRegion]], nil];
segmentControl = [[UISegmentedControl alloc] initWithItems:segmentItems];
segmentControl.frame = CGRectMake(6, 8, 308, 29);
segmentControl.autoresizingMask = UIViewAutoresizingFlexibleWidth;
segmentControl.segmentedControlStyle = UISegmentedControlStyleBar;
[segmentControl setTintColor:[UIColor grayColor]];
[segmentControl addTarget:self action:#selector(segmentedControlIndexChanged:) forControlEvents:UIControlEventValueChanged];
segmentControl.momentary = NO;
segmentControl.selectedSegmentIndex = 0;
});
UIBarButtonItem *toolbarItem = [[UIBarButtonItem alloc] initWithCustomView:segmentControl];
[topToolbar addSubview:toolbarItem.customView];
[customView addSubview:myImageView];
[customView addSubview:topToolbar];
return customView;
}
}
I use "static dispatch_once_t onceToken; dispatch_once(&onceToken, ^{", because I need create this header only first time (because when I scroll table, method is call and call ... and this is wrong) ...
Everything works fine, when I create table view controller it show a headers, when I scroll it, nothing is recreating (it is fine), but when I push back button a then reopen tableview controller headers are empty. Where is problem ? Is there any solution, how to fix it ? Thanks a lot
Well, to me it looks like it's a problem with your static dispatch.
When you push the Back button, chances are that your view holding the table view is released (I don't know your code, but I suppose it is like that), meaning all internal variables are gone - except your static dispatch, which won't be called the next time you instantiate the view. So, during the next instantiation your segmentItems will not be created, but because the view was released, they are empty. You should solve your 'only create once' problem differently, e.g. by remembering the created segmentItems in a dictionary and getting them from there if they do not exist yet.
You're using dispatch_once without really needing to. The block will only be executed once, even if you subsequently remove the view controller from memory and deallocate segmentControl.
Use lazy loading instead - create a property for your segmentControl view within your view controller, and in the accessor for that, if the backing ivar is nil, create it then:
Your synthesize statement:
#synthesize segmentControl = _segmentControl
Your accessor method:
-(UISegmentedControl*)segmentControl
{
if (_segmentControl)
return _segmentControl;
UISegmentedControl *segmentControl = //... create your control here
self.segmentControl = segmentControl
return segmentControl;
}
Then when you want to use the view, use self.segmentControl. The first time you call it, it will be created, the subsequent times, it will be re-used.
check it with breakpoint and see the process. it maybe the memory allocation problem. See this it may help you. http://www.icodeblog.com/2010/12/10/implementing-uitableview-sections-from-an-nsarray-of-nsdictionary-objects/

UITextView, user scrolls uitextview but then it snaps back to original position, whats wrong?

I currently have a UITextView which is contained in a UIViewController using the following code:
UIViewController *container = [[UIViewController alloc] init];
container.view.frame = CGRectMake(0, 0,
[UIScreen mainScreen].bounds.size.width, 1000);
//[UIScreen mainScreen].bounds.size.height
container.view.userInteractionEnabled = YES;
container.view.clipsToBounds = YES;
UIImageView *imgView = [[UIImageView alloc]
initWithImage:[UIImage imageNamed:#"myImage.png"]];
imgView.frame = container.view.frame;
imgView.userInteractionEnabled = YES;
[container.view addSubview:imgView];
[imgView release];
UITextView *textContained = [[UITextView alloc]
initWithFrame:CGRectMake(0, 0, container.view.bounds.size.width, 1000)];
//container.view.bounds.size.height
textContained.font = [UIFont fontWithName:#"Calibri" size:14];
textContained.scrollEnabled = YES;
textContained.editable = NO;
textContained.textColor = [UIColor whiteColor];
textContained.backgroundColor = [UIColor clearColor];
textContained.font = [UIFont boldSystemFontOfSize:14];
textContained.userInteractionEnabled = YES;
textContained.alwaysBounceVertical = YES;
textContained.contentSize = CGSizeMake(container.view.frame.size.width,
container.view.frame.size.height);
I then set my UItextView text property with some text, which extends past the current screen size. I then add my UITextView to my container using the following code.
switch (indexPath.row) {
case 0:
textContained.text = #"LOTS AND LOTS OF TEXT";
[container.view addSubview:textContained];
[self.navigationController pushViewController:container animated:YES];
[textContained release];
break;
default:
break;
}
[container release];
When I test this code, the text appears just fine in the UITextView and everything looks ok. But the problem is when I try to scroll down to see the remainder of the text. Everytime I scroll down the UITextView scrolls back in to its original position. I have tried several ways to get this to work, but I think I need some fresh eyes to see what I'm doing wrong.
Any help is greatly appreciated.
First, you don't want to set the contentSize of a UITextView, since it is determined by the length of text automatically.
Try to make the height of textView smaller. For example:
UITextView *textContained = [[UITextView alloc]
initWithFrame:CGRectMake(0, 0, container.view.bounds.size.width, 50)];
And give it more text, like:
textContained.text = #"LOTS AND LOTS OF TEXT\nLOTS AND LOTS OF TEXT\nLOTS AND LOTS OF TEXT\n\nLOTS AND LOTS OF TEXT\nLOTS AND LOTS OF TEXT\n";

Parsing text file into NSArray but how do I extract it?

I have this code
NSArray *wordListArray = [[NSArray alloc] initWithArray:
[[NSString stringWithContentsOfFile:[[NSBundle mainBundle] pathForResource:#”sowpods” ofType:#”txt”]
encoding:NSMacOSRomanStringEncoding error:NULL] componentsSeparatedByString:#”\n”]];
My question is how can I extract this text and update a label in a Scrollview? I just need the user to be able to scroll down and read whats in the text file...
Sounds like what you want to do is something like:
CGRect appFrame = [[[UIApplication sharedApplication] keyWindow]frame];
UIScrollView* scrollView = [[[UIScrollView alloc] initWithFrame:appFrame] autorelease];
CGRect lblFrame = CGRectMake(0.0f, 0.0f, scrollView.frame.size.width, 20.0f);
for (NSString* word in wordListArray)
{
UILabel* lbl = [[[UILabel alloc] initWithFrame:lblFrame]autorelease];
lbl.text = word;
[scrollView addSubview:lbl];
lblFrame.origin.y += 20.0f;
}
scrollView.contentSize = CGSizeMake(lblFrame.size.width, lblFrame.origin.y);
[mainView addSubview:scrollView]; // mainView = up to you
(NB: I haven't tested this, could contain errors, but just want to give you ideas to work with.)