Why does the LIST APPEARANCE property of the scrollWheel control run incorrectly when set to Circular?
When I run TouchGFX's "Scroll Wheel and List Example", if the LIST APPEARANCE property of the scrollWheel control is set to Circular,
When I slide the data to the left or right, and then quickly swipe, the system prompts an error. I check the source file and find that it is the parameter itemSelected = -1 of the function "scrollWheelAnimateToHandler (int16_t itemSelected)",
-1 is incorrect data, which causes the program to be abnormal. If the LIST APPEARANCE property of the scrollWheel control is not set to Circular, the program runs normally.
I refer to this example, I have made a scrollWheel control, but I need to set the LIST APPEARANCE property to Circular, but itemSelected = -1 causes my program to not run properly. What should I do?
// The callback updates the selected Val on the itemSelected parameter
void Screen1View :: scrollWheelAnimateToHandler (int16_t itemSelected)
{
// I added for testing
touchgfx_printf ("itemSelected =% d \ r \ n", itemSelected);
selectedVal.invalidate ();
Unicode :: snprintf (selectedValBuffer, SELECTEDVAL_SIZE, "% d", itemSelected);
}
Below is the error I caught
