I want the user to confirm the password he typed it... so I use two text fields.. But somehow even if both have the same password it seems to think that the 2 strin differ
if (![self.typePTextField.text isEqualToString:self.retypePLabel.text]) {
UIAlertView *alert = [[UIAlertView alloc] initWithTitle:NSLocalizedString(#"Error", #"Error") message:NSLocalizedString(#"Passwords do not match \n please retype", #"Passwords do not match \n please retype") delegate:nil cancelButtonTitle:#"OK" otherButtonTitles:nil, nil];
[alert show];
self.typePTextField.text = #"";
self.retypePLabel.text = #"";
return;
}
The alert appears even if I type the same string twice... and only the first text field geets reset to #"" ...
What will fix this?
I'm guessing in the isEqual: method
self.retypePLabel.text
should be
self.retypePTextField.text
try
if (![self.typePTextField.text isEqualToString:self.sometextfield.text]) {
UIAlertView *alert = [[UIAlertView alloc] initWithTitle:NSLocalizedString(#"Error", #"Error") message:NSLocalizedString(#"Passwords do not match \n please retype", #"Passwords do not match \n please retype") delegate:nil cancelButtonTitle:#"OK" otherButtonTitles:nil, nil];
[alert show];
self.typePTextField.text = #"";
self.sometextfield.text = #"";
return;
}
if([_txtPassword.text isEqual:_txtconfirmPassword.text])
{
NSLog(#"Password =%# , ConfirmPassword = %# ",_txtPassword.text,_txtconfirmPassword.text);
}
else {
//// code show alert////
}
self.retypePLabel.text? are you sure you ask about this, because I think it should be like self.retypePTextField.text
Related
I'm trying to build a login page for an app. Something went wrong when testing the login condition.
There are two textfields, username and password. When the Login button is clicked, alert shows when
1) either fields are empty
2) both filled.
The code reflects this below. But the result came out no matter that the textfield is empty or not, it only showed as textfields were filled ( only the else part run). So I assume there was something wrong with the if condition. But when I checked the if condition in other view, it worked.
Can anyone help?
if ([_pLoginIDField.text isEqualToString:#""] || [_pPasswordField.text isEqualToString:#""]) {
UIAlertView *error = [[UIAlertView alloc] initWithTitle:#"Yeah !" message:#"must complete all fields" delegate:self cancelButtonTitle:#"OK" otherButtonTitles: nil];
[error show];
}
else {
UIAlertView *error2 = [[UIAlertView alloc] initWithTitle:#"Oooops !" message:#"hhhhhhhhhh" delegate:self cancelButtonTitle:#"OK" otherButtonTitles: nil];
[error2 show];
}
Try this:
if (_pLoginIDField.text.length > 0 || _pPasswordField.text.length > 0)
NSString *text = [NSString stringWithString: nameUITextField.text];
if(text.length == 0){
}
You may try this,
you can count how many characters are in string, it is indirectly checking to null.
NSString *inputString = [NSString stringWithString: nameUITextField.text];
if(inputString.charachters.count == 0){
// inputString is Blank
// Do your stuff
}else{
//inputString is not blank, Do other Stuff.
}
the above condition satisfy if inputString is blank otherwise it will enter into else block.
I'm building an iOS app and I need to provide a forgot password function. I have a db that stores registered users and their details(userArray). I have searched by email inputed so, how do I do a UIAlert that shows the found password??? below is code I tried but my if condition is wrong.
[self.theuser valueForKey:#"password"] is the retrieved password from the database and its a string.
- (IBAction)ForgotPassword:(id)sender {
if ([[self.theuser valueForKey:#"password"] > 0 ]) {
UIAlertView *alert = [[UIAlertView alloc]initWithTitle: #"Success"
message: #"Your Password is:"
delegate: self
cancelButtonTitle:#"Ok"
otherButtonTitles:nil];
[alert show];
}
You need to check that the length of the string is higher than 0, because using this:
if ([self.theuser valueForKey:#"password"])
will always return true if the value is other than nil, meaning if you server code returns that the value of password is "" (two quote marks with no space in between) then the app will recognize that the value is not nil and display an alert with no text in it
So the final code should look something like this:
- (IBAction)ForgotPassword:(id)sender {
NSString *retrievedPassword = [self.theuser valueForKey:#"password"];
if ( retrievedPassword.length > 0) {
NSString *message = [NSString stringWithFormat:#"Your password is: %#", retrievedPassword];
UIAlertView *alert = [[UIAlertView alloc]initWithTitle: #"Success"
message: message
delegate: self
cancelButtonTitle:#"Ok"
otherButtonTitles:nil];
[alert show];
}
}
Change:
#"Your Password is:"
to:
[NSString stringWithFormat:#"Your Password is: %#", [self.theuser valueForKey:#"password"]]
You can also change this:
if ([[self.theuser valueForKey:#"password"] > 0 ]) {
to this:
if ([self.theuser valueForKey:#"password"]) {
If it didn't exist, it would count as "false". Any other value is "true".
I want a UIAlertView to warn the user if there are no items matching his/her chosen search criteria. My initial idea was to use this code:
if (aOiCount == 0)
{
UIAlertView *alert = [[UIAlertView alloc] initWithTitle:#"No instances of %#",self.thisSpec.activityOfInterest message:#"Please select an activity or Cancel" delegate:nil cancelButtonTitle:#"OK" otherButtonTitles:nil];
[alert show];
}
The idea being to slip an actual activity name into the title, like in an NSLog string.
Unfortunately, this doesn't work. Compiler tells me Expected ":"
Is it possible to use a variable like this, and if so, how?
Thanks!
call this line
#"No instances of %#",self.thisSpec.activityOfInterest
in one NSString
NSString *alertstr=[NSString stringWithFormat:#"No instances of %#",self.thisSpec.activityOfInterest];
after that call your UIAlertView and then rearrange the word delegate:nil into delegate:self
if (aOiCount == 0)
{
UIAlertView *alert = [[UIAlertView alloc] initWithTitle:alertStr message:#"Please select an activity or Cancel" delegate:self cancelButtonTitle:#"OK" otherButtonTitles:nil];
[alert show];
}
I don't think this is valid Objective C syntax:
initWithTitle:#"No instances of %#",self.thisSpec.activityOfInterest
You need to wrap it in an NSString, or a self-contained form.
Consider one of the many NSString methods, such as stringWithFormat or construct one in a different way. Either way, you should pass a complete string here.
How do i compare a website result with a predicted result.
#"document.getElementsByTagName('body')[0].outerHTML"
is predicted to contain:
<body>OK</body>
But i always get an error saying that they don't match. I used this code below to compare them:
if (webresult == cmp){
then it shows an alert saying success. Or in else it'll say error. It always goes to else. Heres the code block, Please help.
- (IBAction)displayresult:(id)sender {
webresult = [webview2 stringByEvaluatingJavaScriptFromString:#"document.getElementsByTagName('body')[0].outerHTML"];
NSString *cmp = [[NSString alloc] initWithFormat:#"<body>OK</body>"];
if (webresult == cmp) {
UIAlertView *alert = [[UIAlertView alloc] initWithTitle:#"Logged in" message:#"Logged in, Proceeding to the game" delegate:self cancelButtonTitle:#"Ok" otherButtonTitles:nil, nil];
[alert show];
[alert release];
} else {
UIAlertView *alert = [[UIAlertView alloc] initWithTitle:#"Error" message:webresult delegate:self cancelButtonTitle:#"Ok" otherButtonTitles:nil, nil];
[alert show];
[alert release];
}
}
I assume that webresult is an NSString. If that is the case, then you want to use:
if ([webresult isEqualToString:cmp]) {
instead of:
if (webresult == cmp) {
as the above method checks if the strings are equal character by character, whereas the bottom method checks if the two strings are the same pointer.
if (webresult == cmp)
Here, == checks whether webresult, cmp are pointing to the same reference or not. You should instead compare value of the object by using NSString::isEqualToString.
if ( [ cmp isEqualToString:webresult ]) {
// ..
}else {
// ..
}
Note that isEqualToString is a good option because it returns boolean value.
We cannot comapre the strings with ==
We have to use isEqualToString:
if([str1 isEqualToString:str2])
{
}
else
{
}
When comparing strings you need to use isEqualToString:
if ([cmp isEqualToString:webresult]) {
...
} else {
...
}
for Swift 4.0:
if str1==str2 {
//both string are equal
}
else {
//do something expression not true
}
for Objective-C:
if ([str1 isEqualToString:str2]) {
//both string are equal
}
else {
//do something expression not true
}
I have been using VB.NET for a while and I switched to Xcode 4.
In the VB.NET environment, I used to type the following command in a button:
if TextBox1.text="" then
MessageBox.Show("You can't leave the textbox empty!, "Error!")
else
Label1.text = TextBox1.text
That is just an example. In Xcode, I want to do the same thing except for I want to have a Pop-Up Alert (in the iPhone) instead of the MessageBox in VB.NET.
Any Ideas?
Here you go
if ([TextBox1.text isEqualToString:#""]){
UIAlertView *errorAlert = [[UIAlertView alloc] initWithTitle:#"Error"
message:#"You can't leave the textbox empty!"
delegate:nil
cancelButtonTitle:#"OK"
otherButtonTitles:nil];
[errorAlert show];
[errorAlert release];
} else {
Label1.text = TextBox1.text;
}