Mulitasking on Casacde (Backbround thread for reading the accelerometer and in the foreground UI update)

Hello

I make application to read data from the accelerometer. I create the user interface using C++ and when the user clicks on the application startup button taking users accelerometer reading. I tried to update x, position y of the component and textarea or a text label. How can I do?

I've attached my app.cpp file in which I want to update the text of button or label and move the image to different x, the coordinate y.

I'm multitasking successfully implemented over the waterfall.

Here is my code in which the two wire work in parallel.

Step 1: Extend the class with the Thread class

Step 2: The signal whenever you want to update your UI Thread class

Step 3:

QObject::connect (myThread, SIGNAL (signalGUI (float, float, float)),)
SLOT (showUpdatedData (float, float, float)));

myThread is an object of the class as we thread createad by exteding the Qthread.

signalGUI is a signal that emerging us from the worker thread.

showUpdatedData is a slot in which we write the code to update the GUI.

In this way we can implement multitasking on the waterfall.

Tags: BlackBerry Developers

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