So I want to present to the user an alert view for them to enter the password. I'd like to check to make sure that something was entered at the keyboard. I know in the UIAlertViewDelegate, you can get the text input. However, the only solution I have so far is,
- (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex {
NSLog(#"buttonIndex: %i", buttonIndex);
if (buttonIndex == 0) {
UITextField *passwordTextField = [alertView textFieldAtIndex:0];
if (!passwordTextField.text.length == 0) {
NSLog(#"password: %#", passwordTextField.text);
// save the password
}
else {
// Show the alert view again asking for the password
}
}
}
where I would ask for the password again right after they click ok if they didn't enter anything. Is there a better solution to this? Thanks!
Present the alert view again. You can put the alert view in a method and call it.
...
} else {
[self showPassAlert];
}
You can also watch for when the text field is edited, and enable/disable the button in the alert view. If the text field's length is 0, disable the button. When the text field is edited and its length is greater than 0, enable the button. This is more graceful than closing and reopening the view.
[[NSNotificationCenter defaultCenter] addObserver:self selector:#selector(textDidChange) name:UITextFieldTextDidChangeNotification object:textField];
...
-(void)textDidChange {
for (UIView *view in alertView.subviews) {
if ([view isKindOfClass:[UIButton class]]) {
if (textField.text.length == 0) {
//you may need to look for the button's title to make sure you are not disabling the cancel button
((UIButton *) view).enabled = NO;
} else {
((UIButton *) view).enabled = YES;
}
}
}
}
Why don't you create iboutlet/reference for your UITextFields, which will aid you to retrieve its value at any moment of time.
Related
I have a UISearchBar which I am putting in UISearchDisplayController. Now, whenever I tap on the 'Search' button on the keyboard, it dismisses the keyboard. I am implementing the below method to stop searching whenever 'Search' button is tapped in which case I do not want to loose my keyboard also. Is there any way to instruct UISearchDisplayController to not dismiss the keyboard on tap on 'Search' button?
- (void)searchBarSearchButtonClicked:(UISearchBar *)searchBar1 {
if ([searchBar.text length] < 3){
return;
}
else {
// Do searching here or other stuffs
}
}
// This method return NO to not resign first responder
- (BOOL)searchBarShouldEndEditing:(UISearchBar *)searchBar;
So on your code it should be something like this to avoid the keyboard not to dismiss on search button tap only, but will dismiss on cancel, etc.
- (void)searchBarSearchButtonClicked:(UISearchBar *)searchBar1 {
isSearchTap = YES;
}
- (BOOL)searchBarShouldEndEditing:(UISearchBar *)searchBar {
if(isSearchTap) {
return NO;
}
return YES;
}
I am using a UISearchBar to match text input against entries in a database and display the matched results to the user in a UITableView, as they type.
All is well, however, I cannot find a way to alter the return key type of the search bar's keyboard. By default it replaces the standard return key with a Search button. Because I am doing a live search as the user types, I do not need this button and having it there and inactive has raised some usability issues.
Attempted solutions
I can set a keyboard with the setKeyboard:UIKeyboardType method, however this doesn't seem to override the default setting of replacing the return key (on the standard keyboard) with a Search key and it does not allow access to change this return key.
I have thought about using a UITextField, giving me access to the returnKeyType property through the UITextInputTraits protocol. My problem with this however is that I am implementing the UISearchBarDelegate method searchBar:(UISearchBar *)searchBar textDidChange:(NSString *)searchText, which I would lose with the UITextField.
Is there a way that I can keep the functionality of the search bar's delegate methods, whilst having legitimate access to the keyboard's return key?
In fact, almost the exact screen I am implementing is found in Apple's Clock application
Screenshot:
So any help on a clean solution would be much appreciated. Note the return key on the bottom right instead of the default Search button'.
Slightly different in iOS 7 compared to the answer of #sudip.
for (UIView *subview in self.searchBar.subviews)
{
for (UIView *subSubview in subview.subviews)
{
if ([subSubview conformsToProtocol:#protocol(UITextInputTraits)])
{
UITextField *textField = (UITextField *)subSubview;
[textField setKeyboardAppearance: UIKeyboardAppearanceAlert];
textField.returnKeyType = UIReturnKeyDone;
break;
}
}
}
I tried all of these solutions without luck until I realized that in IOS8, you can just set searchBar.returnKey = .Done or whatever UIReturnKeyType you like. Sigh.
Try this:
for(UIView *subView in searchBar.subviews) {
if([subView conformsToProtocol:#protocol(UITextInputTraits)]) {
[(UITextField *)subView setKeyboardAppearance: UIKeyboardAppearanceAlert];
}
}
If you want to dismiss the return key (i.e., make it do nothing), set the "returnKeyType" property on the UITextField subview to "UIReturnKeyDone" along with "keyboardAppearence".
I had to add some lines to Neo's answer. Here is my code to add a "Done" button for UISearchbar :
for(UIView *subView in sb_manSearch.subviews) {
if([subView conformsToProtocol:#protocol(UITextInputTraits)]) {
UITextField *t = (UITextField *)subView;
[t setKeyboardAppearance: UIKeyboardAppearanceAlert];
t.returnKeyType = UIReturnKeyDone;
t.delegate = self;
break;
}
}
To change Search into Done text.
Use below code.
youtSearchBar.returnKeyType = .done
you can do it by :
- (void)viewDidLoad
{
// Adding observer that will tell you keyboard is appeared.
[[NSNotificationCenter defaultCenter] addObserver:self selector:#selector(keyboardDidShow:)
name:UIKeyboardDidShowNotification object:nil];
[super viewDidLoad];
}
- (void)keyboardDidShow:(NSNotification *)note
{
keyboardTest = [self getKeyboard];
[keyboardTest setReturnKeyEnabled: YES];
}
- (id) getKeyboard // Method that returns appeared keyboard's reference
{
id keyboardView;
// locate keyboard view
UIWindow* tempWindow = [[[UIApplication sharedApplication] windows] objectAtIndex:1];
UIView* keyboard;
for(int i=0; i<[tempWindow.subviews count]; i++)
{
keyboard = [tempWindow.subviews objectAtIndex:i];
if ([[[UIDevice currentDevice] systemVersion] floatValue] >= 3.2)
{
if([[keyboard description] hasPrefix:#"<UIPeripheralHost"] == YES)
{
keyboard = [[keyboard subviews] objectAtIndex:0];
keyboardView = keyboard ;
}
}
else
{
if([[keyboard description] hasPrefix:#"<UIKeyboard"] == YES)
keyboardView = keyboard ;
}
}
return keyboardView ;
}
UPDATE : From iOS 7 onwards, the accepted answer will not work, below version will the work on iOS 7 onwards.
UIView *subViews = [[_searchBar subviews] firstObject];
for(UIView *subView in [subViews subviews]) {
if([subView conformsToProtocol:#protocol(UITextInputTraits)]) {
[(UITextField *)subView setEnablesReturnKeyAutomatically:NO];
}
}
for (UIView *subView in view.subviews) {
if ([subView isKindOfClass:[UITextField class]])
{
UITextField *txt = (UITextField *)subView;
#try {
[txt setReturnKeyType:UIReturnKeyDone];
[txt setKeyboardAppearance:UIKeyboardAppearanceAlert];
}
#catch (NSException * e) {
// ignore exception
}
}
}
I just found the simplest wait to hack this, just put a blank when beginning editing search field
-(void)searchBarTextDidBeginEditing:(UISearchBar *)searchBar{
//Add a blank character to hack search button enable
searchBar.text = #" ";}
This may sound a newbie question, however I'm new to iOS dev.
Platform : iPad
I have a UITableView with UITextField, let say they are two.
When pressing on the first one virtual keyboard should appear, but when user tapps on the second UITextField the virtual keyboard should be hidden and data picker view should be displayed.
So here it is, how I did it.
-(void) textFieldDidBeginEditing:(UITextField *)textField {
if (textField.tag == PICKER_VIEW_TAG) {
[textField resignFirstResponder];
} else {
...
}
}
-(void) textFieldDidEndEditing:(UITextField *)textField
{
if (textField.tag != PICKER_VIEW_TAG) {
...
}
}
- (BOOL)textFieldShouldBeginEditing:(UITextField *)textField
{
if (textField.tag == PICKER_VIEW_TAG) {
[self countriesPickerView];
}
return YES;
}
-(BOOL)textFieldShouldReturn:(UITextField *)textField
{
if (textField.tag == PICKER_VIEW_TAG) {
[textField resignFirstResponder];
} else {
...
}
return YES;
}
So now the question, when I click for the first time on the first UITextField it displays keyboard, but when I switch to second one it does not hide it. Why ? and how to solve this ?
UPDATE : The corresponding textField is not getting selected but i.e. the resign takes place, right ? but the keyboard is not hidden ... why this happens ?
The issue is with your textFieldShouldReturn. If you want it to complete the action, allow it to return while resigning the first responder.
[textField resignFirstResponder];
return YES;
Set the inputView property on UITextField to display views other than keyboard to receive input. In this case, you would set the text field's inputView to be an instance of UIDatePicker. The picker will be displayed with the same keyboard animation automatically and you get to delete a bunch of code. Win/win.
can anybody help me in such situation:
I have SigninController class with two textFields (as Outlets) txtLogin and txtPassword:
when I filled txtLogin, I call [txtPassword becomeFirstResponder] to pass input focus to next field (return button works fine in txtLogin), but Return button doesn't work in txtPassword and I can't dismiss keyboard in this case. What did I write wrong ?
Example code:
- (BOOL)textFieldShouldReturn:(UITextField *)textField
{
if (textField == txtLogin) {
[txtLogin resignFirstResponder]; //Works as I think
[txtPassword becomeFirstResponder]; // txtPassword gets focus
} else {
[self signinClick]; //Never enter here
}
return YES;
}
- (IBAction)signinClick
{
NSLog(#"Signin Clicked");
[activityIndicator startAnimating];
[txtPassword resignFirstResponder];
..........
}
It seems you have forgot to set the delegate of txtPassword correctly.
specify
urtextfieldobject.delegate=self;
then urViewcontroller.h
#interface urViewcontroller
make sure both of them
My App is having a search bar for searching records from the table view,which is populated by sqlite DB.
My problem is that when the view opens the "cancel" button is not enabled and also I cant touch on that, just like a image only.It is there but no action is with that.
when we click on that search bar text the cancel button will be changed to "done" it is enabled one.
so here is my code
this is my search bar view,see that cancel button.It is not enabled
- (void)searchBarTextDidBeginEditing:(UISearchBar *)searchBar
{
//[newSearchBar setShowsCancelButton:YES animated:YES];
newSearchBar.autocapitalizationType = UITextAutocapitalizationTypeAllCharacters;
NSLog(#"search begin edit") ;
//searchString = searchBar.text;
//NSLog(#"print did edit searchstring : %#", searchString) ;
for(UIView *view in [searchBar subviews])
{
//shareItemId =newSearchBar.text;
if([view isKindOfClass:[NSClassFromString(#"UINavigationButton") class]]) {
[(UIBarItem *)view setTitle:#"Done"];
}
}
- (void)searchBarTextDidEndEditing:(UISearchBar *)searchBar
{
NSLog(#"searchBarTextDidEndEditing:");
[searchBar resignFirstResponder];
//[self dismissModalViewControllerAnimated:YES];
}
- (void)searchBarSearchButtonClicked:(UISearchBar *)searchBar
{
NSLog(#"searchBarSearchButtonClicked");
searchString = searchBar.text;
NSLog(#"search %#", searchBar.text);
[newSearchBar setShowsCancelButton:NO animated:YES];
[searchBar resignFirstResponder];
//[self dismissModalViewControllerAnimated:YES];
}
- (void)searchBarCancelButtonClicked:(UISearchBar *)searchBar
{
NSLog(#" searchBarCancelButtonClicked");
[searchBar resignFirstResponder];
shareItemName =newSearchBar.text;
[self dismissModalViewControllerAnimated:YES];
}
- (BOOL)searchBarShouldBeginEditing:(UISearchBar *)searchBar {
NSLog(#"searchBarShouldBeginEditing");
[newSearchBar setShowsCancelButton:YES animated:YES];
return YES;
}
These are my delegates for that
Please check my code and give me the answer. I need to enable the "Cancel" button when the view is loaded and it action will be go back to previous view
I need like this
Or else how can I add a another cancel button on exciting cancel button.so that I can enable that.please give me all the details
You need to set the UISearchDisplayController to be ACTIVE, like this:
[mySearchDisplayController setActive:YES animated:YES];
or more simply:
mySearchDisplayController.active = YES;
My guess is that Apple made the UISearchBar in a way that the cancel button is disabled if the search text field is empty or not first responder.
This is make sense because you should not use the "Cancel" button to other purpose than actually canceling the search. and since there is no search to cancel - the button is disabled.
If you still want that the button will be active immediately when the view is presented, you can call at viewWillAppear: to [mySearchBar becomeFirstResponder];
This will cause to the keyboard to appear and the button will be enabled.
And then if the user hit cancel you can intercept it to go back to the previous view. (I'm not sure if apple will like this behavior).
Sample code:
-(void) viewWillAppear : (BOOL) animated
{
[super viewWillAppear:animated];
// Make keyboard pop and enable the "Cancel" button.
[self.mySearchBar becomeFirstResponder];
}
Here's what I did to always enable the cancel button, even when the search field is not first responder.
I'm calling this method whenever I call resignFirstResponder on the search field
- (void)enableCancelButton {
for (UIView *view in self.searchBar.subviews) {
if ([view isKindOfClass:[UIButton class]]) {
[(UIButton *)view setEnabled:YES];
}
}
}
This works, but I'm not sure whether it will pass App Store verification yet, so use it at your own risk. Also, this probably only works if the cancel button is the only button you are using with the search field.
This works to reenable the cancel button as of iOS 8:
private func enableButtonsInSubviews(view: UIView) {
if let view = view as? UIButton {
view.enabled = true
}
for subview in view.subviews {
enableButtonsInSubviews(subview)
}
}