How do I display NSLog output?

How do I display NSLog output?

NSLog() output on the simulator does indeed show up in the Console Mac OS X application. Go to All Messages and then filter based on your app name to get rid of the fluff, and run again. You’ll see it in your output if the NSLog code is actually being hit during the execution of your program.

How do I save my xcode console output?

After the error occurs, go to Xcode 6 and use the save button ( )to save the log….2. Collecting console logs using Xcode 6 (for iOS 8 and above):

  1. Download and install Xcode 6.
  2. ​Connect your iOS 8 device to your computer.
  3. Open Xcode 6 and go to Window > Devices.
  4. Select your device from the Devices column.

What is NSLog in Swift?

NSLog : NSLog adds a timestamp and identifier to the output, whereas print will not; NSLog statements appear in both the device’s console and debugger’s console whereas print only appears in the debugger console.

How do I print a string in Objective C?

NSString *name = [NSString stringWithUTF8String:name]; NSLog(@”%@”, name); %@ works for all Objective-C objects. If you want to output a C-string ( char* or const char* ), use %s . Never put a non-literal string as the first argument to NSLog as this opens security holes.

Where does NSLog write to?

NSLog outputs messages to the Apple System Log facility or to the Console app (usually prefixed with the time and the process id). Many of the system frameworks use NSLog for logging exceptions and errors, but there is no requirement to restrict its usage to those purposes.

How do I show output in Xcode?

13 Answers

  1. You console may be hidden. Press Show the console button present in right corner (blue coloured when console is open).
  2. You may be displaying Debugger or Target output. Select All Output (Checkmark is displayed when selected).

Where is Console output in Xcode?

In Xcode 4 short cut to display and hide console is (command-shift-Y) , this will show the console and debugger below ur text edior in the same window. You can always see the console in a different window by opening the Organiser, clicking on the Devices tab, choosing your device and selecting it’s console.

Where is NSLog defined?

In the spirit of “teaching a man to fish”, you can find the definition of any symbol by putting the cursor in it in the code editor, then either looking at the quick help on the right, or right-clicking and selecting “jump to definition”.

What is NSLog in iOS?

NSLogger is a high performance logging utility which displays traces emitted by client applications running on macOS, iOS and Android. It replaces traditional console logging traces (NSLog(), Java Log). Logs can be sent from device or simulator. …

How do I print boolean in NSLog?

There is no format specifier to print boolean type using NSLog. One way to print boolean value is to convert it to a string. Another way to print boolean value is to cast it to integer, achieving a binary output (1=yes, 0=no).

Why is Xcode not showing output?

Goto XCode > Preferences > Behaviors > Succeeds > Check checkbox of Show tab named. Now click checkbox before debugger with and select Console View in the dropdown.

Where are print statements Xcode?

2 Answers. Press ⇧⌘Y or choose View > Debug Area > Show Debug Area to show the console output (or ⇧⌘C / Activate Console). Usually, this window will open automatically when your program produces output (this is controlled by the Behaviors section of Xcode’s Preferences).

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