FromApp

Receive data from method of iOS app

• 

Libraries:
Simulink Support Package for Apple iOS Devices / Advanced

Description

The FromApp block receives data from a method defined in the InfoViewController.mm class of an Apple iOS app . After code generation is completed, you can modify the generated code to configure the Method name, Data type, and Data size (N) parameters to match those of the method.

For example, consider a method, -(int*)FromAppFcn: (void), that returns three data elements each time it runs, and the data type of the elements is int32. In this case, set these parameter values.

• Method name to FromAppFcn

• Data size to 3

• Data type to int32

The method in the Apple iOS app must return a data type that this block can accept.

Note

During simulation with no hardware connected, this block does nothing. For more information, see Block Produces Zeros or Does Nothing in Simulation.

Ports

Output

Data — Data returned by method

numeric array

Data returned by the method specified in the Method name parameter, returned as numeric array.

Data Types: single | double | int8 | int16 | int32 | uint8 | uint16 | uint32 | Boolean

Size — Size of data returned by method

numeric scalar

Size of the data returned by the method specified in the Method name parameter, returned as numeric scalar.

Data Types: double

Parameters

Method name — Name of method

'FromAppFcn' (default) | character array

Specify the name of a method in the InfoViewController.mm class of Apple iOS app.

Data type — Data type elements returned by method

uint8 (default) | uint16 | uint32 | int8 | int16 | int32 | double | single | boolean

Select the data type of the elements returned by the method specified in the Method name parameter.

Data size (N) — Number of data elements returned by method

1 (default) | nonnegative scalar

Specify the number of data elements the method returns to the block each time it runs.

Sample time — Sample time

0.1 (default) | nonnegative scalar

Specify how often the block reads the method in the Apple iOS app in seconds.

Note

Smaller values for Sample time require the processor to complete the same number of instructions in less time, which can cause task overruns.

Version History

Introduced in R2015a