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I am getting userid through parsing a link.Again i have to parse it with userid to get the access. What i am doing 

NSString *str=[[NSString alloc]initWithFormat:@"http://abc.com/fb_redirect_mobile/?accessToken=4546"];

This gives me the userid,now i want to use that userid to parse it again such as:

NSString *str=[[NSString alloc]initWithFormat:@"http://abc.com/user/userid/bookmarks"];

In other languages I have seen they are just using:

NSString *str=[[NSString alloc]initWithFormat:@"http://abc.com/user/"+userid+"/bookmarks"];

The userid variable takes user id.how i can do this in iPhone.I know my question is lengthy but i tried to make it clear what i want.please help..please also tell me how to store a parsing id into string,such as userid i am going to get after parsing the url./now how i can save it in form of string.

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5 Answers 5

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NSString *userId = @"123456";
NSString *str=[[NSString alloc]initWithFormat:@"http://abc.com/user/%@/bookmarks", userId];

initWithFormat:/stringWithFormat: follow the general format convention set by printf/scanf

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1 Comment

In my camera app when i clicks the image its going to be saved but i want before getting saved it will ask user for title and description for image.How i can do this?? Please help..
2

The way you concatenated your userid is not valid syntax in Obj-C

NSString *str=[[NSString alloc]initWithFormat:@"http://abc.com/user/"+userid+"/bookmarks"];

What you'd probably want to do is use a format specifier for an Obj-C object (in your case NSString), and use that within your URL (assuming userid is an NSString, which it probably is. If it's a C based string, use %s as your format specifier instead).

NSString *str=[[NSString alloc]initWithFormat:@"http://abc.com/user/%@/bookmarks", userid];

Refer to these on how to use stringWithFormat: on an NSString:

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1 Comment

In my camera app when i clicks the image its going to be saved but i want before getting saved it will ask user for title and description for image.How i can do this?? Please help..
1

you can give like this,

NSString *str=[NSString stringWithFormat:@"http://abc.com/user/%@/bookmarks",userid];
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1

Instead of

NSString *str=[[NSString alloc]initWithFormat:@"http://abc.com/user/"+userid+"/bookmarks"];

You would use

NSString *str=[[NSString alloc] initWithFormat:@"http://abc.com/user/%@/bookmarks",userid];
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1 Comment

In my camera app when i clicks the image its going to be saved but i want before getting saved it will ask user for title and description for image.How i can do this?? Please help..
0

Well you almost got it:

NSString *usrid = @"4546";
NSString *str=[NSString stringWithFormat:@"http://abc.com/fb_redirect_mobile/?accessToken=%@", userid];

You can use the stringWithFormat: method of NSString for this.

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7 Comments

Thanks a lot...can you tell me i am getting userid from the json parsing...then how to store it into a variable..
Not really since I don't know how the JSON looks like or you code. I suggest you pick up a book about Objective-C development, these question are really simple.
@deepak This will be another question, as it's on an entirely different topic
I am new to iPhone.so,i dont know many thing about it..thanks for supporting me..
@rckoenes In my camera app when i clicks the image its going to be saved but i want before getting saved it will ask user for title and description for image.How i can do this?? Please help..
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