I'm using UIWebView to display formatted content. However, I need to replace the default keyboard for UITextViews/UITextFields with our own.
I can use grotesque methods to hide the default keyboard when it appears, but I can't find the text field to direct input to. UITextFieldTextDidBeginEditingNotification or UITextViewTextDidBeginEditingNotification is never fired off. I do see UIKeyboardWillShowNotification etc properly emitted.
It is important that the final result be App Store approved.
EDIT:
When the keyboard notification comes, note which HTML element is focused. Then make your view controller first responder.
[self becomeFirstResponder];
Your view controller should become first responder and return your custom input view.
- (BOOL)canBecomeFirstResponder {
return YES;
}
- (UIView*)inputView {
return _customInputView;
}
When your custom input view gets input, you can pass it to the HTML element.
NSString* script = [NSString stringWithFormat:#"element.value += '%#';", input];
[_webView stringByEvaluatingJavascriptFromString:script];
Related
In my iPad app there are 3 textboxes where i am using popoverview controller on second text box.
here their are 2 cases
In First Case:
As i finish editing the first textbox and click the next button on keyboard that time the keyboard is resigning perfectly and the popoverview controller is opened on second text box.Here i had written the code when the next button of the first textbox click at that time the second textbox should became FirstResponder.
In Second Case:
Here the actual problem,
When i finish editing the first textbox and directly touches the second textbox without clicking the next button on keyboard, that time popoverview controller menu is opened on second textbox and the keyboard is unable to resign , the keyboard is strucking over their my code for resigning the keyboard is not working.
Write your code which you used on NEXT button event of Keyboard in this bellow method...
- (BOOL)textFieldShouldEndEditing:(UITextField *)textField {
if (textField == yourFirstTextBox) {
// write your code here
}
return YES;
}
-(void)textFieldDidBeginEditing:(UITextField *)textfield
{
if ([textfield tag]==yourtextfieldtag)//set tag for your textfield
{
[yourfirsttextfield resignFirstResponder];
[yoursecondtextfield resignFirstResponder];
.
.
.
//Write all textField with resignFirstResponder
}
}
Here is the way you can handle your SoftKeypad
Handling Soft Keypad in iPhone Tutorial
There are three simple ways to handle keypad here
Keypad go back when Button clicked.
Keypad go back when user click on Return or Done button on keypad.
Keypad go back when user Touch on Background screen/view.
Just follow 3rd way in you case.
What you need to do is just crate a method in which call
method for the desired text field.
and Updated Related UIView class to UIControl in Interface Builder.
as I have written all the information step by step to make it more easy and clear.
Here is the responsible code snip
- (IBAction)keypadGoBack:(id)sender {
[userNameTextField resignFirstResponder];
[passwordTextField resignFirstResponder];
}
Hope this will help you.
-(BOOL)textFieldShouldBeginEditing:(UITextField *)textField
{
if(textField==yourTextField)
{
[self.view endEditing:YES];
// Write Your Popoverview Code / Extra Code
return NO;
}
return YES;
}
Here this method will get called when you will hit textfield.
And check the textfield with yourtextFieldName if its match..it will resign all keyboard.if there is more than one also..with the help of.
[self.view endEditing:YES];
And you can do Extra Code also For popoverview and return no means It will not give keyboard to that perticuler textField.
Thanks.
I have an iPhone application with a UIWebView as it's core UI and this web view shows some data that I want to add notes next to, an example scenario would be:
The User will select a text in the webview and a pop up menu
appears.
They will press AddNotes button.
An UI textview window should appear to write in.
The user should press save and the notes should be saved regarding
the location he press the AddNotes button in.
Can anyone help partially or completely?
This will help you to know about the selected test using the Rangy library:
- (BOOL) isSelectionActive
{
NSString * resultStr = [self.contentView stringByEvaluatingJavaScriptFromString:
#"rangy.getSelection().isCollapsed"];
NSLog(#"resultStr: %#", resultStr );
if ([resultStr isEqualToString:#"true"]) {
return NO;
}
else {
return YES;
}
}
When you get to know that the selection has been made then animate a UITextfield, so that user will be able to enter text in it.
I have 2 textFields side by side, countryCodeTextField and cellphoneTextField
On countryCodeTextField. I have an action selectCountry that happens on Edit Did Begin on the countryCodeTextField
- (IBAction)selectCountry:(id)sender {
countryCodeTextField.delegate = self;
[countryCodeTextField resignFirstResponder];
Note that self implements the <UITextFieldDelegate>.
Problem is when user click's cellphone the keyboard is displayed if he clicks on countryCodeTextField the keyboard is never dismissed.
If the person clicks the countryCode first then the keyboard never appears(which is what I want).
Why isn't the keyboard hidden when the user clicks cellphoneTextField first and then countryCodeTextField?
If you don't want the user to be able to edit a particular UITextField, set it to not be enabled.
UITextField *textField = ... // Allocated somehow
textfield.enabled = NO
Or just check the enabled checkbox in Interface Builder. Then the textfield will still be there and you'll be able to update it by configuring the text. But as sort of mentioned in comments, users expect UITextFields to be editable.
Also, why are you setting the delegate in the IBAction callback? I would think you'd be better off doing this in Interface Builder or when you create the UITextField in code.
EDIT:
Ok - so you want users to be able to select the box, but then bring up a custom subview(s) from which they select something which will fill the box.
So set the UITextField delegate when you create it (as mentioned above) and implement the following from the UITextFieldDelegate protocol:
- (BOOL)textFieldShouldBeginEditing:(UITextField *)textField {
return NO;
}
to return NO. Note that if you are using the same delegate for both of your UITextFields, you will need to make this method return YES for the other field. For example, something like:
- (BOOL)textFieldShouldBeginEditing:(UITextField *)textField {
if (textField == countryTextField)
return NO;
return YES;
}
Hopefully this should stop the keyboard being displayed - and now you have to work out how to fire your own subviews, which I'd suggest doing via an IBAction (touch up or something perhaps). You'll have to test various things out here, but remember you're kinda corrupting the point of UITextField and maybe it'll work and maybe it won't, and maybe it'll break in the next iOS upgrade.
Okay, so first, I think you shouldn't be using a UITextField. I think you should be using a UIButton and have the current value showing as the button's title. However, if you have your heart set on it, I would use our good friend inputView, a property on UITextField, and set that to your custom input view (which I assume is a UIPickerView or similar.)
This has the added bonus of not breaking your app horribly for blind and visually impaired users, something you should probably be aware of before you go messing about with standard behaviour.
In your method :
- (IBAction)textFieldDidBeginEditing: (UITextField *)textField
call this :
[textField becomeFirstResponder];
and apply checks for the two fields i.e., when textField is the countryCodeTextField write :
[textField resignFirstResponder];
and call your method :
[self selectCountry];
In this method display the list of country codes.
So Your code will be :
- (BOOL)textFieldShouldBeginEditing:(UITextField *)textField {
return YES;
}
- (IBAction)textFieldDidBeginEditing: (UITextField *)textField{
[textField becomeFirstResponder];
if (textField == countryCodeTextField){
[textField resignFirstResponder];
[self selectCountry];
}
}
-(IBAction)selectCountry{
//display the list no need to do anything with the textfield.Only set text of TextField as the selected countrycode.
}
I got a UIButton with style "Info Dark" set up in interface builder in my iPhone 4 app. One of the properties of the button is "Highlighted", which displays a white highlight around the button.
I would like to toggle this white highlight on and off, indicating if the button function is active or not.
The button is linked for "Touch up inside" event in the interface builder with this callback:
infoButton.highlighted = !infoButton.highlighted;
After the first touch, the highlight disappears and does not toggle as I expect it to. What else do I need to do to make the highlight toggle and display the state of the button?
Thank you!
Update:
When loaded from the interface builder, the button stays highlighted, even as the view appears/disappears. What causes this to happen is the "shows touch on highlight" interface builder property. If I assign the code above to another button, the info button highlights on and off as expected. However, the touches of the info button itself interfere with the above code, causing the button to lose the "touch" highlight
Update 2: I added another info button, directly below the first info button, in the interface builder and made it glow permanently. To create the appearance of the toggle, I hide and unhide the glowInfoButton below the real one. This works as expected:
infoButton.highlighted = NO;
glowInfoButton.highlighted = YES;
glowInfoButton.enabled = NO;
glowInfoButton.hidden = YES;
- (IBAction)toggleInfoMode:(id)sender {
// infoButton.selected = !infoButton.selected;
glowInfoButton.hidden = !glowInfoButton.hidden;
}
The Highlighted image is what displays when the UIButton is being pressed, and is controlled within the UIButton itself.
You're looking for the Selected property. You can set a Selected Image in IB, and then put a infoButton.selected = !infoButton.isSelected; in your TouchUpInside callback.
The highlighted property doesn't work like that, buttons aren't toggles.
It's just to know if the button is being pressed, if I'm correct.
If you want to implement that functionality, I recommend you subclass UIButton or UIControl.
Now that I see what you really were after I would advise subclass UIButton and check for a call to an event then toggle highlight state accordingly. You can do this without adding the dummy button.
in a custom button class implementation file place the following code, or similar:
#import "HighlightedButton.h"
#implementation HighlightedButton
BOOL currentHighlightState;
-(void)toggleHighlight:(id)sender {
self.highlighted = currentHighlightState;
}
-(void)sendAction:(SEL)action to:(id)target forEvent:(UIEvent *)event {
//get the string indicating the action called
NSString *actionString = NSStringFromSelector(action);
//get the string for the action that you want to check for
NSString *touchUpInsideMethodName = [[self actionsForTarget:target forControlEvent:UIControlEventTouchUpInside] lastObject];
if ([touchUpInsideMethodName isEqualToString:actionString]){
//toggle variable
currentHighlightState = !currentHighlightState;
//allow the call to pass through
[super sendAction:action to:target forEvent:event];
//toggle the property after a delay (to make sure the event has processed)
[self performSelector:#selector(toggleHighlight:) withObject:nil afterDelay:.2];
} else {
//not an event we are interested in, allow it pass through with no additional action
[super sendAction:action to:target forEvent:event];
}
}
#end
That was a quick run at a proper solution, there is a flicker on toggle that you may not like. I am sure if you play around with some changes that can be corrected. I tried it and actually like it for your stated case.
The highlighted state of a UIButton is simply setting the button's alpha to 0.5f. So if you set the button to not change on highlight, then just toggle the alpha between 0.1 and 0.5.
For example:
- (void)buttonPressed:(id)sender {
if((((UIButton*)sender).alpha) != 1.0f){
[((UIButton*)sender) setAlpha:1.0f];
} else {
[((UIButton*)sender) setAlpha:0.5f];
}
}
Perhaps what you really want is
infoButton.enabled = NO;
This will dim the button and disable touches when set to no, allow normal operation when set to YES.
or in your case:
infoButton.enabled = !infoButton.isEnabled;
to toggle the availability of same.
If you put this in your touchupinside event, of course it will work only the first time. After that is disabled and does not receive touch events. You would put it in another method that decides whether or not the button should be enabled.
If you truly want it to change each time it is pressed then you probably should use a switch or you may look at the -imageForState, -setTitle:forState and/or -setTitleColor:forState methods. If you want to toggle the appearance each time it is touched, you could change these.
I'm making a custom input method for the iPad, I want to be able to replace the system keyboard with my input method and enter text via that input method.
According to the documentation all I need to do is to set the inputView property with my view and it will be used instead of the system keyboard. I did that and it works, as far as showing the keyboard but how do I actually enter text into the text view?
Supposedly the text view needs to adopt the UIKeyInput and I can use the protocol's methods to enter the text but in reality UITextView doesn't adopt this protocol. conformsToProtocol:#protocol(UIKeyInput) returns NO and "deleteBackwards" is not implemented (insertText and hasText are implemented. In addition to that, "insertText" doesn't cause the textViewDidChange: delegate method to be invoked. Obviously I need to send the UIKeyInput method to some other object (a field editor?) but how do I get it?
Any ideas?
Assuming your keyboard has some buttons, why cant you just set a selector for your keys, and append to the textViews text when each button is clicked, I have done this an it works fine...Here is the method that actually does the "writing" to the UITextView, this method is part of a custom protocol defined by the inputView and is called on the delegate whenever a button is pressed, hope it helps, note: i submit ret when the return key is pushed and <- when backspace is pushed.
-(void)userDidInputString:(NSString*)s
{
NSRange r=padView.textView.selectedRange;
if([s isEqualToString:#"ret"])
s=#"\n";
if([s isEqualToString:#"<-"])
{
NSString *text=padView.textView.text;
if(r.location>0)
{
r.location=r.location-1;
r.length+=1;
}
[padView.textView setScrollEnabled:YES];
padView.textView.text=[text stringByReplacingCharactersInRange:r withString:#""];
[padView.textView setScrollEnabled:NO];
r.length=0;
[padView.textView setSelectedRange:r];
[note setNoteText:padView.textView.text];
}
else {
NSString *text=padView.textView.text;
[padView.textView setScrollEnabled:YES];
padView.textView.text=[text stringByReplacingCharactersInRange:r withString:s];
[padView.textView setScrollEnabled:NO];
r.location=r.location+[s length];
//whenever you modify the text by setting the UITextViews text property it resets the cursor to the end of the text view, we have this line below to go back to where the user left off
[padView.textView setSelectedRange:r];
}
}