Programming with SurfaceView and thread strategy for game development

Question

I am using a SurfaceView and a rendering thread to develop a game based on structure like LunarLander.

However, I faced many problems, and here I want to point them

Answer 1

I hope it can help

@Override
public void surfaceCreated(SurfaceHolder holder) {

   //if it is the first time the thread starts
   if(thread.getState() == Thread.State.NEW){
    thread.setRunning(true);//riga originale
    thread.start();//riga originale
   }

   //after a pause it starts the thread again
   else
   if (thread.getState() == Thread.State.TERMINATED){
       thread = new MainThread(getHolder(), this);
       thread.setRunning(true);
       thread.start();  // Start a new thread
       }
   }

and this

    @Override
    protected void onPause() {
    Log.d(TAG, "Pausing...");
    MainThread.running=false;//this is the value for stop the loop in the run()
    super.onPause();
    }

Answer 2

I've been dealing with the same issue. I'm learning about game development on Android and also based my first project on the Lunar Lander example. I found that the SpriteMethodTest project created by Chris Pruett implements a much better approach in terms of thread management. It's all about using notify and wait methods, though. I couldn't tell whether it's better than your solution or not.

Answer 3

the solution is here

public void surfaceCreated(SurfaceHolder holder){

            if (plot_thread.getState() == Thread.State.TERMINATED) {
                plot_thread = new WaveformPlotThread(getHolder(), this);
                plot_thread.setRunning(true);
                plot_thread.start();
            }
            else {
                plot_thread.setRunning(true);
                plot_thread.start();
            }
        }