Question

i want to share text data between two iphone apps. How can i use paste board for this purpose. Can anyone help me with a sample code. Thanks in advance. Suggest me if there are better ways than pasteboard to accomplish my task.

Answer 1

If you simply want to use IPC, make both of your apps recognize some URL scheme. Then call

[[UIApplication sharedApplication] openURL:
  [NSURL URLWithString:@"theOtherApp://dataToShare"]];

to send, and use -application:handleOpenURL: to receive.

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To share strings via the pasteboard, use

 UIPasteboard* board = [UIPasteboard generalPasteboard];
 board.string = @"Some string to share";

to save, and use board.string as a getter to retrieve the string to share. But if the user copy anything in between your shared data will be lost.

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Alternatively, you can share stuff via:

• AddressBook. Create a dummy contact and use it for sharing.
• Keychain. Make a Shared Keychain Item. 3.x only.
• Read/write from shared folders. /var/mobile/Library/AddressBook and Keyboard and Preferences can be accessed even if your app is sandboxed. This may violate SDK rules though.