Question

I tried to deploy my application in real device.

But when it running , my application is crashed (be aborted).

How can i catch message error to display the error what make application be crashed?

Thank you.

Answer 1

First of all you can redirect Your logging to a file with this method:

+ (void)redirectNSLogToDocumentFolder {

    NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,NSUserDomainMask, YES);    
    NSString *documentsDirectory = [paths objectAtIndex:0]; 
    NSString *fileName =[NSString stringWithFormat:@"%@.log",[NSDate date]];    
    NSString *logFilePath = [documentsDirectory stringByAppendingPathComponent:fileName];   
    freopen([logFilePath cStringUsingEncoding:NSASCIIStringEncoding],"a+",stderr);
}

just call it at the beginning of your app. After, all your NSLog() calls will be written to a file (with the date as name).

Then you can just connect your device to XCode and retrieve the file with the Organizer