Issue with too many arguments in Twitter API?

[jimmymacapps]

So basically i am trying to incorporate the new twitter framework in my app. I can manage to sucessfully "tweet" using the following code:

[twitter setInitialText:@"my first tweet"];

I am trying to let the user to be able to tweet their high/previous scores with the following code:

    [twitter setInitialText:@"I just got", lastScore.text, @"on myappname"];

but it says that i have too many arguments? This may just be me being stupid but any help is appreciated

Thanks in advance!

[timle8n1]

Originally Posted by jimmymacapps

So basically i am trying to incorporate the new twitter framework in my app. I can manage to sucessfully "tweet" using the following code:

[twitter setInitialText:@"my first tweet"];

I am trying to let the user to be able to tweet their high/previous scores with the following code:

    [twitter setInitialText:@"I just got", lastScore.text, @"on myappname"];

but it says that i have too many arguments? This may just be me being stupid but any help is appreciated

Thanks in advance!

NSString stringWithFormat is your friend.

[jimmymacapps]

Thanks for the quick reply!
Would you be able to give me any starters on this?

[apatsufas]

What you are doing here

[twitter setInitialText:@"I just got", lastScore.text, @"on myappname"];

is passing list of three arguments to setInitialText. That's why you get the error message.

If you have a look at the documentation about NSString here
you will find out that you can concatenate string either by appending them or by creating a string with a specified format.

The first option would be

[twitter setInitialText:[[@"I just got " stringByAppendingString:lastScore.text] stringByAppendingString:@" on myappname"]];

which is not so convenient

And the second option would be

[twitter setInitialText:[NSString stringWithFormat:@"I just got %@ on myappname", lastScore.text]];

Where %@ gets replaced by lastScore.text.

[jimmymacapps]

Thanks very much!
That worked a treat!

[Duncan C]

Originally Posted by apatsufas

What you are doing here

[twitter setInitialText:@"I just got", lastScore.text, @"on myappname"];

is passing list of three arguments to setInitialText. That's why you get the error message.

If you have a look at the documentation about NSString here
you will find out that you can concatenate string either by appending them or by creating a string with a specified format.

The first option would be

[twitter setInitialText:[[@"I just got " stringByAppendingString:lastScore.text] stringByAppendingString:@" on myappname"]];

which is not so convenient

And the second option would be

[twitter setInitialText:[NSString stringWithFormat:@"I just got %@ on myappname", lastScore.text]];

Where %@ gets replaced by lastScore.text.

Suggestion:

Write an abstract explanation that tells the OP how to do it, but do not provide the exact code.

The OP will not learn as much (anything?) if he/she can just copy and paste code you've written into place.

If you post sample code, write it in general form, not an exact solution to the poster's question.

[jimmymacapps]

Originally Posted by apatsufas

What you are doing here

[twitter setInitialText:@"I just got", lastScore.text, @"on myappname"];

is passing list of three arguments to setInitialText. That's why you get the error message.

If you have a look at the documentation about NSString here
you will find out that you can concatenate string either by appending them or by creating a string with a specified format.

The first option would be

[twitter setInitialText:[[@"I just got " stringByAppendingString:lastScore.text] stringByAppendingString:@" on myappname"]];

which is not so convenient

And the second option would be

[twitter setInitialText:[NSString stringWithFormat:@"I just got %@ on myappname", lastScore.text]];

Where %@ gets replaced by lastScore.text.

I have one other question with regards to fbconnect. Basically i am trying to do the same thing as twitter (be able to post high/latest scores) and i have the same sort of problem with the following code:

         NSMutableDictionary *params = [NSMutableDictionary dictionaryWithObjectsAndKeys:
                                       @"app name", @"name",
                                       @"app caption", @"caption",
                                       @"I just got %@ on myappname", lastScore.text, @"description",
                                       @"applink", @"link",
                                       nil];
        
        [[facebook] dialog:@"feed"
                             andParams:params
                           andDelegate:self];

my error code is:

NSInvalidArgumentException', reason: '+[NSMutableDictionary dictionaryWithObjectsAndKeys:]: second object of each pair must be non-nil.

it would be much appreciated if you could help me with this as well!
Thanks again!

[Duncan C]

Originally Posted by jimmymacapps

I have one other question with regards to fbconnect. Basically i am trying to do the same thing as twitter (be able to post high/latest scores) and i have the same sort of problem with the following code:

         NSMutableDictionary *params = [NSMutableDictionary dictionaryWithObjectsAndKeys:
                                       @"app name", @"name",
                                       @"app caption", @"caption",
                                       @"I just got %@ on myappname", lastScore.text, @"description",
                                       @"applink", @"link",
                                       nil];
        
        [[facebook] dialog:@"feed"
                             andParams:params
                           andDelegate:self];

my error code is:

NSInvalidArgumentException', reason: '+[NSMutableDictionary dictionaryWithObjectsAndKeys:]: second object of each pair must be non-nil.

it would be much appreciated if you could help me with this as well!
Thanks again!

Ok, lets think. You just learned that you can't pass multiple parameters in place of a single parameter. You have to combine substrings. The OP told you that to create a combined string, you could use a temporary string:

NSString *tempString = [NSString stringWithFormat: @"The other string is %@", otherString];

You could then pass in tempString as a single parameter.

In your code:

NSMutableDictionary *params = [NSMutableDictionary dictionaryWithObjectsAndKeys:
  @"app name", @"name",
  @"app caption", @"caption",
  @"I just got %@ on myappname", lastScore.text, @"description",
  @"applink", @"link",
  nil];

The call to dictionaryWithObjectsAndKeys needs

value, key,
value, key,
value, key,
nil;

Are you passing in pairs of strings and values? No. You're making the same mistake with

@"I just got %@ on myappname", lastScore.text

You need to create a temp string in the line before you build your dictionary, and use stringWithFormat to fill it with the combined string you want to put in the "description" key value pair.

This time see if you can work out the code for yourself.

[jimmymacapps]

Originally Posted by Duncan C

Ok, lets think. You just learned that you can't pass multiple parameters in place of a single parameter. You have to combine substrings. The OP told you that to create a combined string, you could use a temporary string:

NSString *tempString = [NSString stringWithFormat: @"The other string is %@", otherString];

You could then pass in tempString as a single parameter.

In your code:

NSMutableDictionary *params = [NSMutableDictionary dictionaryWithObjectsAndKeys:
  @"app name", @"name",
  @"app caption", @"caption",
  @"I just got %@ on myappname", lastScore.text, @"description",
  @"applink", @"link",
  nil];

The call to dictionaryWithObjectsAndKeys needs

value, key,
value, key,
value, key,
nil;

Are you passing in pairs of strings and values? No. You're making the same mistake with

@"I just got %@ on myappname", lastScore.text

You need to create a temp string in the line before you build your dictionary, and use stringWithFormat to fill it with the combined string you want to put in the "description" key value pair.

This time see if you can work out the code for yourself.

Thanks very much for all of your help!!!!!!
For anybody who wants to know the code that i used is:

    NSString *tempScoreString = [NSString stringWithFormat: @"I just got %@ on myappname !!!", lastScore.text];

Thanks again!

[apatsufas]

Originally Posted by Duncan C

Suggestion:

Write an abstract explanation that tells the OP how to do it, but do not provide the exact code.

The OP will not learn as much (anything?) if he/she can just copy and paste code you've written into place.

If you post sample code, write it in general form, not an exact solution to the poster's question.

Note taken. I will keep that in mind.

[Duncan C]

Originally Posted by jimmymacapps

Thanks very much for all of your help!!!!!!
For anybody who wants to know the code that i used is:

    NSString *tempScoreString = [NSString stringWithFormat: @"I just got %@ on myappname !!!", lastScore.text];

Thanks again!

Woo hoo! I believe the man learned something! Wasn't that better than a cut-and-paste solution?

[jimmymacapps]

Originally Posted by Duncan C

Woo hoo! I believe the man learned something! Wasn't that better than a cut-and-paste solution?

Yes, definitely! suppose I'm just too impatient! haha
Thanks again!