How to implement function to pointer in swift

Question

 #import "ViewController.h"

    @interface ViewController ()

    //Declare block as property

    @property (nonatomic, strong) void (^dataBlock)(BOOL success);

    @end

    @implementation ViewController

    - (void) myMethod1:(void (^)(BOOL success))response {

        //Here data block holds the reference to response block

        _dataBlock = response;    
    }

    - (void) myMethod2 {

        //Check for _dataBlock and invoke it.

        if (_dataBlock) {    
            _dataBlock(YES);   
        }    
    }

   - (IBAction) buttonClick {

     //Call for myMethod1 and call back block is invoked in myMethod2

        [self myMethod1:^(BOOL success) { 

            if (success) {   
                NSLog(@"Im Done");   
            }    

        }];
   }
   @end

Above sample is my code in Objective-C

Callback Block of "myMethod1"(response) is having reference/stored to "dataBlock" Property.
then invoke "dataBlock" from "myMethod2".
since "datablock" have reference to"myMethod1" block named "response", i'll be getting call back in "myMethod1", please look at the code snippet (similar to function to pointer).
same thing i want to implement in swift. I have tried implementing this in swift using closures, but not getting it.

Duncan C · Accepted Answer · 2017-05-24 10:43:46Z

2

No, there is not, unless it's on a Jailbroken device.

Apple does not let 3rd party apps alter the core behavior of the phone.

Now you could put the phone in a Faraday cage and put antennas on the inside and outside, and disconnect them when you wanted to block calls.

edited May 24, 2017 at 10:43

answered May 23, 2017 at 19:10

Duncan C

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1 Comment

Sunil Kumar Over a year ago

Thanks for response.

Anton · Accepted Answer · 2017-05-24 19:16:26Z

1

Actually you sort of can, but not really programmatically from iOS. If the BLE device implements the HID profile then you can simulate a double click on the lock button which would dismiss the call. I have done that, but it is a bit of a clunky solution.

answered May 24, 2017 at 19:16

Anton

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2 Comments

Sunil Kumar Over a year ago

Thanks, Can you share a solution, if possible.

Anton Over a year ago

Have a look at usb.org/developers/hidpage/Hut1_12v2.pdf Consumer Page (0x0C), Usage ID 0x30

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