I have a UIButton in UIViewController, i want add to dynamic number of UITextViews in the ViewController on this button click action. After creating textviews i am moving it using touches, but as i create a new textview the previous textview does not respond to touch event.Why is this happening?
here is my code:
-(IBAction)createTextView{
UITextView *textView =[[UITextView alloc]init];
textView.frame=CGRectMake(40,40,10,300);
[self.view addSubview:textView];
}
Use textView.delegate=self; after allocating the textView. Hope it will work fine once its done.
Related
I have placed out a UIView with a UIButton as a subview in a ViewController in Interface Builder. I also have a UITextField where I have a action witch is triggered every time I type something in it. When I type something my view is supposed to get higher and the button should move to the bottom of the view. But when I type the first letter in the textfield the view resizes but the button doesn't move. When I type a second letter the button moves. Probably because the view is already resized. My question is how to get this to work simultaneously when typing the first letter in the textfield.
My code:
[[NSNotificationCenter defaultCenter] addObserver:self selector:#selector(keyPressed:) name:UITextFieldTextDidChangeNotification object:textField];
- (void)keyPressed:(NSNotification*)notification{
view.frame = CGRectMake(view.frame.origin.x, view.frame.origin.y, view.frame.size.width, 200.0);
button.frame = CGRectMake(button.frame.origin.x, (view.frame.size.height-button.frame.size.height), button.frame.size.width, button.frame.size.height);
}
try to implement this method:
-(void)textFieldDidBeginEditing:(UITextField *)textField
{
// put your action here
}
Solved it by putting the button at the bottom of the view. Then when I resized the view the button followed along by staying at the bottom. I didn't need to programmatically move the button.
So Ive added a TapGestureRecognizer to the navigation bar in order to "pull down" another view, thus its a UIPanGesture Recognizer. The problem is when this gesture is added the UITableView scrollToTop method no longer works, even if enabled before or after the addition of the gesture recognizer.
Has anyone ever experienced or can think of an easy solution?
Thanks!
Heres My Code:
if (!pan) {
_pan = [[UIPanGestureRecognizer alloc] initWithTarget:self action:#selector(panaction:)];
[_pan setMaximumNumberOfTouches:1];
}
_pan.delegate = self;
[self.navigationController.navigationBar addGestureRecognizer:_pan];
EDIT:
Ok, the problem seems to be adding a UIView as a subview in order to drag down from the UINavigation bar, when I dont add the subview the scrollToTop works fine, once its added it must be intercepting the touch event underneath the status bar..
In my app, I have my main view and when i click a button, a UIPopoverController is shown over my main view (not fullscreen so i still see the view behind) containing a UITableView. When I click one of the tableview cells, I want to show a custom view centered on screen (simple view informing the user that the app is processing) that will fade in and fade out during a specific amount of time.
The problem is that my custom view always appears UNDER the UIPopover...I tried all I can think of, bringSubviewToFront etc...Nothing works... I also tried to wrap my custom view in a UIViewController and use [mainView presentViewController:myCustomView ...] but when I do that the main view disappear
Someone can help?
Thx
Thx Ole Begemann, this question was indeed a duplicate.
Although, the solution to my problem is not to subclass UIWindow but to add my UIView to the key UIWindow :
NSArray * windows = [[UIApplication sharedApplication] windows];
UIWindow* win0 = [windows objectAtIndex:0];
[win0 addSubview:loadingView];
[win0 bringSubviewToFront:loadingWindow];
I have a UITextField in my iOS app. When a user enters text and clicks Return, the keyboard goes away due to a call to an IBAction with "resignFirstResponder."
However, XCode does not let me drag a line from the UIView itself to File Owner. How do I associate touching the background of a UIView with an IBAction that makes the keyboard go away?
You can use UITapGestureRecognizer. see: Dismiss keyboard by touching background of UITableView
so instead of tableview, just add it to your view instead:
UITapGestureRecognizer *gestureRecognizer = [[[UITapGestureRecognizer alloc] initWithTarget:self action:#selector(hideKeyboard)] autorelease];
gestureRecognizer.cancelsTouchesInView = NO; //so that action such as clear text field button can be pressed
[self.view addGestureRecognizer:gestureRecognizer];
and have a method to hide your keyboard
- (void) hideKeyboard {
[self.view endEditing:YES];
}
You've already noticed that you can't drag from the UIView to the file's owner to assoctiate an action with a touch.
The way to work around this is to change the class of the background view from UIView to UIControl and hook up an action from there to a method in your controller to stop editing.
That's because a UIControl can respond to touch events, and a UIView does not, but a UIControl subclasses UIView, and so it can be used in place of a UIView.
I wrote an example project a while ago that uses this technique. Have a look at the secondViewController's xib file and see how I've change the class of the background view and hooked it up to a an action in the controller to dismiss the keyboard.
Use the touchesBegan with Event and end editing on the view:
-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {
[self.view endEditing:YES];
}
One easy way to do it is to create a big transparent UIButton behind the view.
When an UITextField is firstResponder, I would like to bring to front an UIDatePicker (bottom part of the screen) without the "going down keyboard" (no call to UITextField resignFirstResponder).
The aim is to process like UIKeyboard of UITextField which pop-up on nearly everything when it becomeFirstResponder. modalViewController seems to be fullscreen only.
- showDatePicker:(id)sender {
if([taskName isFirstResponder]) [taskName resignFirstResponder];
[self.view.window addSubview: self.pickerView];
// size up the picker view and compute the start/end frame origin
(...)
[UIView commitAnimations];
}
This example is an animation of keyboard going down, and DatePicker going up, behind and not in front.
Do you know a solution ? A piece of code would be welcome. Thanks in advance.
This is simply done by setting the input view of the text field to the Picker View. Then, on Editing did begin tell the picker view to becomeFirst responder. Like this
textField.inputView = pickerView
then using an IBAction called when the Editing Did Begin
-(IBAction) setPickerViewAsFirstResponder:(id)sender
{
[pickerView becomeFirstResponder];
}
This works perfectly. You'll need to implement code to actually set what the picker view is currently showing to be a string in the text field still.
This definitely can be done... simply implement the method below after setting UIViewController <UITextFieldDelegate> in your .h
Long story short, this overrides the keyboard loading before text editing begins.
- (BOOL)textFieldShouldBeginEditing:(UITextField *)textField {
// Make a new view, or do what you want here
UIDatePicker *pv = [[UIDatePicker alloc] initWithFrame:CGRectMake(0,245,0,0)];
[self.view addSubview:pv];
return NO;
}