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.
Related
I am new to iPhone,
How do I vertically align my text in the UILabel?
Here is my Code snippet,
UILabel *lbl=[[UILabel alloc]init];
lbl.frame=CGRectMake(10,10,100,100);
lbl.backgroundColor=[UIColor clearColor];
lbl.font=[UIFont systemFontOfSize:13];
lbl.text=#"123456";
[scrollVw addSubview:lbl];
text displayed is in the format of 123456 but i want text should be display vertically like,
6
5
4
3
2
1
Any help will be appriciated.
Its impossible to align the text in UILabel vertically. But, you can dynamically change the height of the label using sizeWithFont: method of NSString, and just set its x and y as you want.
As an alternative you can use UITextField. It supports the contentVerticalAlignment peoperty as it is a subclass of UIControl. You have to set its userInteractionEnabled to NO to prevent user from typing text on it.
EDIT 1
Well instead of a UILabel , Make a UITableView like :-
TableActivityLevel=[[UITableView alloc] initWithFrame:CGRectMake(224, 203, 27, 0) style:UITableViewStylePlain];
TableActivityLevel.delegate=self;
TableActivityLevel.dataSource=self;
TableActivityLevel.autoresizingMask = UIViewAutoresizingFlexibleHeight;
TableActivityLevel.rowHeight = 17;
TableActivityLevel.backgroundColor=[UIColor clearColor];
TableActivityLevel.layer.borderColor = [[UIColor clearColor]CGColor];
TableActivityLevel.separatorStyle = UITableViewCellSeparatorStyleNone;
EDIT 2 Found the method using UILabels too !! :) Check this out....
UILabel *label1 = [[UILabel alloc]initWithFrame:CGRectMake(0.0, 0.0, 10.0, 100.0)];
[label1 setBackgroundColor:[UIColor clearColor]];
[label1 setNumberOfLines:0];
[label1 setCenter:self.view.center];
[label1 setFont:[UIFont fontWithName:#"Helvetica" size:12.0]];
[label1 setTextColor:[UIColor whiteColor]];
[label1 setTextAlignment:UITextAlignmentCenter];
[label1 setText:#"1 2 3 4 5 6"];
[self.view addSubview:label1];
If it just a single lined text as in your example you can use various workarounds. I personally would create a UILabel subclass as follows,
#implementation VerticalLabel
- (id)initWithCoder:(NSCoder *)aDecoder
{
self = [super initWithCoder:aDecoder];
if (self) {
self.numberOfLines = 0;
}
return self;
}
- (void)setText:(NSString *)text {
NSMutableString *newString = [NSMutableString string];
for (int i = text.length-1; i >= 0; i--) {
[newString appendFormat:#"%c\n", [text characterAtIndex:i]];
}
super.text = newString;
}
#end
You now just have to replace
UILabel *lbl = [[UILabel alloc] init];
with
UILabel *lbl = [[VerticalLabel alloc] init];
to get vertical text.
Hi the following code is work well
UILabel *lbl=[[UILabel alloc]init];
lbl.frame=CGRectMake(10,10,10,300);
lbl.backgroundColor=[UIColor clearColor];
lbl.numberOfLines=6; // Use one to 6 numbers
lbl.font=[UIFont systemFontOfSize:13];
lbl.text=#"123456";
NSString *reverse=lbl.text;
NSMutableString *reversedString = [NSMutableString string];
NSInteger charIndex = [reverse length];
while (charIndex > 0) {
charIndex--;
NSRange subStrRange = NSMakeRange(charIndex, 1);
[reversedString appendString:[reverse substringWithRange:subStrRange]];
}
NSLog(#"%#", reversedString);
CGSize labelSize = [lbl.text sizeWithFont:lbl.font
constrainedToSize:lbl.frame.size
lineBreakMode:lbl.lineBreakMode];
lbl.frame = CGRectMake(
lbl.frame.origin.x, lbl.frame.origin.y,
lbl.frame.size.width, labelSize.height);
lbl.text=reversedString;
[scrollview addSubview:lbl];
UILabel *lbl=[[UILabel alloc]init];
lbl.frame=CGRectMake(10,10,10,100);
lbl.backgroundColor=[UIColor clearColor];
lbl.font=[UIFont systemFontOfSize:13];
lbl.text=#"123456";
lbl.numberOfLines = 10;
[self.view addSubview:lbl];
You cant do vertical allignment but use another way to display it
UILabel *lbl=[[UILabel alloc]init];
lbl.frame=CGRectMake(10,10,100,400);
lbl.backgroundColor=[UIColor clearColor];
lbl.font=[UIFont systemFontOfSize:13];
lbl.text=#"1\n2\n3\n4\n5\n6";
[scrollVw addSubview:lbl];
I am trying to customize my tableView in my IOS app. When my tableView(or rather array) is empty, I want to display a customized label instead of the items in the tableView. The label I am referring to is "label0". But something is terribly wrong, my [label0 setHidden:YES]; or [label0 setHidden:NO]; only works in the first block of the if "method"? In the second block (if else) nothing happens no matter what I try to set the label as (hidden or shown).
What have I missed? I cannot see my own fault?
- (UIView *) tableView:(UITableView *)tableView viewForHeaderInSection:(NSInteger)section
{
UIView *headerView = [[[UIView alloc] initWithFrame:CGRectMake(0, 0, tableView.bounds.size.width, 30)] autorelease];
UILabel *label0 = [[[UILabel alloc] initWithFrame:CGRectMake(0, 25, tableView.bounds.size.width - 0, 100)] autorelease];
if ([self.searchResults count] == 0){
headerView.backgroundColor = [UIColor colorWithPatternImage:[UIImage imageNamed:#"lista2.png"]];
UILabel *label = [[[UILabel alloc] initWithFrame:CGRectMake(5, 3, tableView.bounds.size.width - 5, 18)] autorelease];
label.text = #"Information";
label.textColor = [UIColor whiteColor];
label.backgroundColor = [UIColor clearColor];
[headerView addSubview:label];
label0.text = #"Test test test";
label0.textColor = [UIColor blackColor];
label0.backgroundColor = [UIColor whiteColor];
[tableView addSubview:label0];
[label0 setHidden:NO];
}
else {
headerView.backgroundColor = [UIColor colorWithPatternImage:[UIImage imageNamed:#"lista2.png"]];
UILabel *label2 = [[[UILabel alloc] initWithFrame:CGRectMake(5, 3, tableView.bounds.size.width - 5, 18)] autorelease];
label2.text = #"Search results";
label2.textColor = [UIColor whiteColor];
label2.backgroundColor = [UIColor clearColor];
[headerView addSubview:label2];
[label0 setHidden:YES];
}
return headerView;
}
EDIT
I have moved the code to viewDidLoad and set the property for the UILabel. This have unfortunately not solved my problem....
UILabel *label0 = [[[UILabel alloc] initWithFrame:CGRectMake(0, 25, tableView.bounds.size.width - 0, 100)] autorelease];
[tableView addSubview:label0];
if ([self.searchResults count] == 0){
label0.text = #"Test test test";
label0.textColor = [UIColor blackColor];
label0.backgroundColor = [UIColor whiteColor];
[label0 setHidden:NO];
}
else {
[label0 setHidden:YES];
}
This is because your label0 is created every time this method is called so in "else" you are referring to totally different object (not the one that you added to tableView when array was empty).
You shouldn't be adding subviews to tableView from this method. Consider using viewDidLoad. That way you will be adding label0 only once. To achieve that add label0 as property of your viewController.
You forgot to add label0 as subview please put this line in the else statement
[tableView addSubview:label0];
also I cannot see any benefit from doing so. I believe you can just hide the table view and show another view that has the label. but nesting views that way is not good when you come back to debug this code after 1 month you will struggle to understand it.
You say in your edit that you set the property for the UILabel (I assume you mean that you have a property called label0?). If this is so, then when you alloc init your label, it should be self.label0 = ..... not UILabel *label0 = .....
I am trying to add label (headerLabel) to another subview (introPadTutorial) here and it is not showing up on the screen. Can some please help me where am I making mistake?
//Header file
#property (nonatomic, retain) UIView *introPadTutorial;
//Implementation file
#synthesize introPadTutorial;
UIView *v = [_appDelegate getCurrentView];
CGRect tutorialFrame = [self getTableViewFrame];
introPadTutorial = [[UIView alloc] initWithFrame:CGRectMake(v.frame.size.width, 80, -tutorialFrame.size.width, v.frame.size.height)];
[introPadTutorial setBackgroundColor:[UIColor uberLightGray]];
[introPadTutorial setUserInteractionEnabled:YES];
UILabel *headerLabel = [[UILabel alloc] initWithFrame:CGRectMake(10, 10, 180, 180)];
[headerLabel setText:#"test test test"];
[headerLabel setBackgroundColor:[UIColor greenColor]];
[headerLabel setFont:[UIFont boldSystemFontOfSize:16.0f]];
[headerLabel setTextColor:[UIColor redColor]];
[headerLabel setShadowColor:[UIColor whiteColor]];
[headerLabel setShadowOffset:CGSizeMake(0, 1)];
[self.introPadTutorial addSubview:headerLabel];
[headerLabel release];
[v addSubview:introPadTutorial];
[introPadTutorial release];
Don't use a negative width to change the POSITION, use the origin to change the position.
Use this:
introPadTutorial = [[UIView alloc] initWithFrame:CGRectMake(v.frame.size.width - tutorialFrame.size.width, 80, tutorialFrame.size.width, v.frame.size.height)];
I think that should help make the subview actually show up.
May be your...
introPadTutorial = [[UIView alloc] initWithFrame:CGRectMake(v.frame.size.width, 80, -tutorialFrame.size.width, v.frame.size.height)];
should actually be...
introPadTutorial = [[UIView alloc] initWithFrame:CGRectMake(0, 80, tutorialFrame.size.width, v.frame.size.height)];
Is your introPadTutorial view showing up? You have a negative width in it's initWithFrame call.
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/
i am a junior programmer
I face a problem of some of the subview in the program not shown ,
don't know if it is the addsubview order problem or the others .
hope if anyone can provide a suggestion or solution .thanks all
for (int i = 0; i < NUM_DISHES; i++) {
UIImageView* img_steps = [[UIImageView alloc] initWithImage:[UIImage imageNamed:[NSString stringWithFormat:#"%d.jpg", i]]];
//IMPORTANT: The i*W_IPAD means that 1st 0*1024 , 1*1024 , 2*1024.............and so on
[img_steps setFrame:CGRectMake(W_IPAD, 0, W_IPAD , H_UPFR)];
UIImageView* imageset = [[UIImageView alloc] initWithImage:[UIImage imageNamed:[ary_img objectAtIndex:i]]];
[imageset setFrame:CGRectMake(89, 9, H_INGREPHOTO, W_INGREPHOTO)];
[ary_image addObject:imageset];
//ingredient amount section
UILabel* lbl_amt = [[UILabel alloc] initWithFrame:CGRectMake(128, 177, 190, 33)];
[lbl_amt setText:[ary_amount objectAtIndex:i]];
[lbl_amt setFont:[UIFont systemFontOfSize:25]];
[lbl_amt setTextColor:[UIColor blackColor]];
[lbl_amt setBackgroundColor:[UIColor clearColor]];
[ary_amt addObject:lbl_amt];
//method section
UILabel* lbl_method = [[UILabel alloc] initWithFrame:CGRectMake(596, 93, 130, 32)];
[lbl_method setText:[ary_meth objectAtIndex:i]];
[lbl_method setBackgroundColor:[UIColor clearColor]];
[lbl_method setFont:[UIFont systemFontOfSize:30]];
[lbl_method setTextColor:[UIColor blackColor]];
[ary_method addObject:lbl_method];
//alpha bar step number step number section
UILabel* lbl_numberstep = [[UILabel alloc] initWithFrame:CGRectMake(90 + (130 * i), 5, W_NUMBERSTEP, H_NUMBERSTEP)];
[lbl_numberstep setText:[NSString stringWithFormat:#"%d",i + 1]];
[lbl_numberstep setFont:[UIFont systemFontOfSize:20]];
[lbl_numberstep setBackgroundColor:[UIColor clearColor]];
[lbl_numberstep setTextColor:[UIColor blackColor]];
[self.view addSubview:img_steps];
[alpha_bar addSubview:lbl_numberstep];
[alphaframe addSubview:[ary_method objectAtIndex:i]];
[alphaframe addSubview:[ary_amt objectAtIndex:i]];
[alphaframe addSubview:[ary_image objectAtIndex:i]];
}
// Section --- Add Subview
[self.view addSubview:background];
[background addSubview:main_view];
[main_view addSubview:alpha_bar];
[main_view addSubview:alphaframe];
[main_view addSubview:but_transit_to_a]; //can add to the main_view
[main_view addSubview:left_buttom];
[main_view addSubview:right_buttom];
[alpha_bar addSubview:bar];
[alpha_bar addSubview:lbl_lastnum];
[alphaframe addSubview:but_transit_to_c];
}
return self;
}
To bring the subview to front you can use [yourMainView bringSubviewToFront:yoursubview]. If your subview isn't showing then, check that you've properly set up the subview's frame and that hidden = NO.
The view.subviews array holds the bottom-most view in index zero, and holds views in an order relating to their "z-index". So [myView.subviews lastObject]; will always give the view in front of all other views and [myView.subviews objectAtIndex:0]; will have the view below all views in that array.
From the UIView docs - subviews property:
You can use this property to retrieve the subviews associated with
your custom view hierarchies. The order of the subviews in the array
reflects their visible order on the screen, with the view at index 0
being the backmost view. For complex views declared in UIKit and other
system frameworks, any subviews of the view are generally considered
private and subject to change at any time. Therefore, you should not
attempt to retrieve or modify subviews for these types of
system-supplied views. If you do, your code may break during a future
system update.