When I try to show cyrillic chars or specific chars like "★" in UIAlertView* instead of messages it's show some random chars (maybe 1, maybe 10..).
Examples:
[[[[UIAlertView alloc] initWithTitle:#"Тест тема (cyr)"
message:#"Message with char ★"
delegate:self
cancelButtonTitle:#"Ок (cyr)"
otherButtonTitles:nil] autorelease] show];
In result I have:
Title: " 5 A B
Message: M
Button: :
There is a bug with non-ASCII characters in strings that is planned to be fixed in the Apportable platform in the next few months. In the meantime, a workaround is:
[[[[UIAlertView alloc] initWithTitle:[NSString stringWithUTF8String:#"Тест тема (cyr)"]
message:[NSString stringWithUTF8String:#"Message with char ★"]
delegate:self
cancelButtonTitle:[NSString stringWithUTF8String:#"Ок (cyr)"]
otherButtonTitles:nil] autorelease] show];
Related
i have an error which i donno how to fix it it's making me crazy. i have searched about the solution a lot but didn't find anything which works here .
here is the code and you can see the error in the picture .
thanks
UIAlertView *alert = [[UIAlertView alloc]
initWithTitle:[NSString stringWithUTF8String:title]
message:[NSString stringWithUTF8String:body]
delegate:nil
cancleButtonTitle:[NSString stringWithUTF8String:cancleLable]
otherButtonTitles:[NSString stringWithUTF8String:firstLable],
[NSString stringWithUTF8String:secondLable], nil];
[alert show];
I'm trying to create a function in order to save some code, however I have no idea how I should do it.
if (count > 100 && count < 120)
{
UIAlertView *alert = [[UIAlertView alloc] initWithTitle:#"Time is up!"
message:[NSString stringWithFormat:#"You're really good at this! You scored %i points", count - 1]
delegate:self
cancelButtonTitle:#"Play Again"
otherButtonTitles:nil];
[alert show];
}
else if(count > 120)
{
UIAlertView *alert2 = [[UIAlertView alloc] initWithTitle:#"Time is up!"
message:[NSString stringWithFormat:#"TEACH ME MASTER, YOU'RE A GOD! You scored %i points", count - 1]
delegate:self
cancelButtonTitle:#"Play Again"
otherButtonTitles:nil];
[alert2 show];
}
else
{
UIAlertView *alert3 = [[UIAlertView alloc] initWithTitle:#"Time is up!"
message:[NSString stringWithFormat:#"Not very good, you scored %i points", count - 1]
delegate:self
cancelButtonTitle:#"Play Again"
otherButtonTitles:nil];
[alert3 show];
}
As you can see the code is very repetitive and I would like to create a function where I can change the value of the "alert" variable and the message string. So when I call the function I only enter the functions name and the value the alert variable should have, in this case; 1, 2 and 3 and the message text depending on what condition we are looking at.
So is there some way of doing this? There has to be, because repetitive code like this is never good looking! I would appreciate if someone could help me out, I've tried looking at some references but none of them made me get any closer to solving the problem.
Simply look at the duplicated functionality and examine the values that are different. In this case it's just the message:
NSString *message = nil;
if (count > 100 && count < 120)
{
message = [NSString stringWithFormat:#"You're really good at this! You scored %i points", count - 1];
}
else if(count >= 120)
{
message = [NSString stringWithFormat:#"TEACH ME MASTER, YOU'RE A GOD! You scored %i points", count - 1];
}
else
{
message = [NSString stringWithFormat:#"Not very good, you scored %i points", count - 1];
}
UIAlertView *alert = [[UIAlertView alloc] initWithTitle:#"Time is up!"
message:message
delegate:self
cancelButtonTitle:#"Play Again"
otherButtonTitles:nil];
[alert show];
(Edit: You missed the value 120 which would have slipped through the cracks).
I am create a new function that creates a new alert with given message :
-(void)showAlertWithMsg:(NSString *)msg tag:(NSInteger)tag
{
UIAlertView *alert = [[UIAlertView alloc] initWithTitle:#"Time is up!"
message:msg
delegate:self
cancelButtonTitle:#"Play Again"
otherButtonTitles:nil];
alert.tag = tag;
[alert show];
}
To call this function write the below code:
if (count > 100 && count < 120)
{
[self showAlertWithMsg:[NSString stringWithFormat:#"You're really good at this! You scored %i points", count - 1] tag:1];
}
else if(count > 120)
{
[self showAlertWithMsg:[NSString stringWithFormat:#"TEACH ME MASTER, YOU'RE A GOD! You scored %i points", count - 1] tag:2];
}
else
{
[self showAlertWithMsg:[NSString stringWithFormat:#"Not very good, you scored %i points", count - 1] tag:3];
}
One more thing I am also pass the tag.So if you want to perform different operation for different alert.
You can set "title" property exactly for existing UIAlertView instance:
UIAlertView * alertView = [[UIAlertView allow] init...];
alertView.title = #"Some message here.";
I am new to programming. I am having trouble finding out what all is wrong with this. It is an alert view that i am trying to randomize the text displayed in the message.
-(void)alert:(id)sender{
int randomNumber;
randomNumber = (randomNumber() %3 + 1);
NSLog(#"%i", randomNumber);
if (randomNumber == 1) {
self.YouWin.text = [NSString stringWithFormat:#"You Win"];
}
else if (randomNumber == 2) {
self.YouWin.text = [NSString stringWithFormat:#"You Lose"];
}
else if (randomNumber == 3) {
self.YouWin.text = [NSString stringWithFormat:#"Tie"];
}
NSLog(#"%#",YouWin);
UIAlertView *alert = [[UIAlertView alloc]initWithTitle:#"Hello" message:[NSString stringWithFormat:#"%#",YouWin] delegate:self cancelButtonTitle:#"Ok" otherButtonTitles: nil];
[alert show];
button.hidden = YES;
Try this one:
UIAlertView *alert = [[UIAlertView alloc]initWithTitle:#"Hello"
message:self.YouWin.text
delegate:self
cancelButtonTitle:#"Ok"
otherButtonTitles:nil];
You needed text-value stored in YouWin, but you passed the YouWin object itself.
*Note: you can use arc4random() for generating random numbers.
There are many good suggestions; I agree with AKB8085.
Replacing the randomNumber() with arc4random() will help at compile time.
But you might want to re-think implementing a random number generator. The reason is in fairness to your user. I pose the question, “Is it fair to assume you want your user to guess a number with this large of a number range?”
Did you Know?
Using the arc4random(3), rand(3), or random(3) you are using a C function.
You are asking the user to guess a number with the following ranges:
arc4random(3) = 0 to 4294967296
rand(3) and random(3) that top out at a RAND_MAX of 0x7fffffff (214748647)
To help in answering your question, answer the following requirement questions:
Is there a min/max range restraint?
What type of compelling delays will happen
by using arc4random(3), rand(3), or random(3)?
Is using NSArray like in the Fisher–Yates_shuffle a better answer?
SUGGESTION:
Read an article on random numbers and NSArray.
NOTE:
Random numbers tend to task the compiler and your user experience will be hindered.
As Anoop noted you are using stringWithFormat but you're not providing a format string at all.
You should do
[NSString stringWithFormat:#"%#", #"You Win"];
but that's extremely redundant, although correct, and it's totally equivalent to just using #"You Win".
Also an advice for the general approach on the problem. Instead of having a big if-else statement, it's better to store all your string into a data structure and then randomly access to it.
In code this would translate to
NSArray * outcomes = #[ #"You Win", #"You lose", #"Tie" ];
int randomIndex = arc4random_uniform(outcomes.count);
NSString * randomOutcome = outcomes[randomIndex];
UIAlertView *alert = [[UIAlertView alloc]initWithTitle:#"Hello"
message:randomOutcome
delegate:self
cancelButtonTitle:#"Ok"
otherButtonTitles:nil];
[alert show];
button.hidden = YES;
Note the usage of arc4random_uniform() that gives you back a random number between 0 and the argument provided, excluded.
Replace
randomNumber = (randomNumber() %3 + 1);
with
randomNumber = arc4random() %3 + 1;
Also use this...
if (randomNumber == 1) {
self.YouWin.text = [NSString stringWithFormat:#"You Win"];
}
else if (randomNumber == 2) {
self.YouWin.text = [NSString stringWithFormat:#"You Lose"];
}
else if (randomNumber == 3) {
self.YouWin.text = [NSString stringWithFormat:#"Tie"];
}
NSLog(#"%#",YouWin);
UIAlertView *alert = [[UIAlertView alloc]initWithTitle:#"Hello"
message:self.YouWin.text
delegate:self
cancelButtonTitle:#"Ok"
otherButtonTitles:nil];
[alert show];
button.hidden = YES;
I tried making a straightforward macro for creating and showing a simple "ok" dialog box in iOS:
#define ALERT_DIALOG(title,message) \
do\
{\
UIAlertView *alert_Dialog = [[UIAlertView alloc] initWithTitle:(title) message:(message) delegate:nil cancelButtonTitle:#"OK" otherButtonTitles:nil];\
[alert_Dialog show];\
} while ( 0 )
If I try to use it in my code:
ALERT_DIALOG(#"Warning", #"Message");
I get the error:
Parse Issue. Expected ']'
And the error seems to be pointing at the second # right before "Message".
However, if I simply copy paste the macro I do not get this error:
NSString *title = #"Warning";
NSString *message = #"Message";
do
{
UIAlertView *alert_Dialog = [[UIAlertView alloc] initWithTitle:(title) message:(message) delegate:nil cancelButtonTitle:#"OK" otherButtonTitles:nil];
[alert_Dialog show];
} while ( 0 );
Is there something against using Objective-c constructs in macros? Or is that something else?
The problem with your macro is that both occurrences of message in
... [[UIAlertView alloc] initWithTitle:(title) message:(message) ...
are replaced by #"Message", resulting in
.... [[UIAlertView alloc] initWithTitle:(#"Warning") #"Message":(#"Message") ...
and that causes the syntax error.
I don't think that it is really worth defining this as a macro, but if you do, you have to use macro arguments which do not occur at places where they should not be expanded, e.g.
#define ALERT_DIALOG(__title__,__message__) \
do\
{\
UIAlertView *alert_Dialog = [[UIAlertView alloc] initWithTitle:(__title__) message:(__message__) delegate:nil cancelButtonTitle:#"OK" otherButtonTitles:nil];\
[alert_Dialog show];\
} while ( 0 )
or similar.
Instead of declaring it as a macro, you can declare it as a C function instead:
void ALERT_DIALOG(NSString *title, NSString *message) {
UIAlertView *alert_Dialog = [[UIAlertView alloc] initWithTitle:(title) message:(message) delegate:nil cancelButtonTitle:#"OK" otherButtonTitles:nil];\
[alert_Dialog show];
}
NSString *responseString = [[NSString alloc] initWithData:responseData encoding:NSUTF8StringEncoding];
NSLog(#"the response string is %#",responseString);
if ([responseString isEqualToString:#"No Data Available"] )
{
UIAlertView *alert = [[UIAlertView alloc] initWithTitle:#"Message"
message:#"No data Avilable in server"delegate:self cancelButtonTitle:nil otherButtonTitles:
#"OK", nil];
[alert show];
[alert release];
}
in my connectiondidfinishloadin delegate method i have the above code. when the server replies there is no data , it does not go into the if loop for some reason. not sure why. any hint will be greatly appreciated.
Thank You.
ResponseString is probably null/nil and runtime knows that that if statement will b false because of this, so skips it. You should see this with your NSLog(#"the response string is %#",responseString);
On a side note, Charles is a good debugging tool for this- you can see the http info as it goes out and comes in.