Android Open Source - voc Draw Graph

• Back to SQLite/data  ↑

From Project

Back to project page voc.

License

The source code is released under:

GNU General Public License

Java Source Code

package cleanup;
/*from w  ww  .  ja  v  a2 s  .co  m*/

import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.view.SurfaceHolder;
import android.view.SurfaceView;
import android.widget.TextView;

/**
 *
 *
 */
public class DrawGraph {
  
  private ThreadPD myThreadPd1, myThreadPd2, myThreadPd3;
  private SurfaceView view1, view2, view3;
  private TextView text1,text2,text3;
  private static boolean colorChanger;

    /**
     *
     */
  public void runGraph () {
    SurfaceHolder holder1 = view1.getHolder();
    holder1.addCallback(mSurfaceCallbackPd1);
    //holder1.lockCanvas().drawColor(Color.GRAY);
    this.myThreadPd1 = new ThreadPD(holder1, 2);
    
    SurfaceHolder holder2 = view2.getHolder();
    holder2.addCallback(mSurfaceCallbackPd2);
    this.myThreadPd2 = new ThreadPD(holder2, 3);
    
    SurfaceHolder holder3 = view3.getHolder();
    holder3.addCallback(mSurfaceCallbackPd3);    
    this.myThreadPd3 = new ThreadPD(holder3, 4);
    
  }

    /**
     *
     * @param view1
     * @param view2
     * @param view3
     */
  public DrawGraph(SurfaceView view1, 
      SurfaceView view2,
      SurfaceView view3) {
    this.view1 = view1;
    this.view2 = view2;
    this.view3 = view3;
    colorChanger = true;
    
  }

    /**
     *
     */
  class ThreadPD extends Thread {
    private SurfaceHolder holder;
    public boolean isRun;

        /**
         *
         * @param holder
         * @param colorChangerX
         */
    public ThreadPD(SurfaceHolder holder, int colorChangerX) {
      this.holder = holder;
      isRun = true;      
    }

        /**
         *
         */
    @Override
    public void run() {
      float count = 0;
      
      while (isRun) {
        Canvas canvas = null;
        try {
          synchronized (holder) {            
            canvas = holder.lockCanvas(); // Draw on surface view after the object is locked.
            if (colorChanger) {
              //canvas.drawColor(Color.WHITE);
              colorChanger = false;
            }
            Paint paint = new Paint();
            paint.setColor(Color.RED);
            paint.setAntiAlias(true);
            paint.setTextSize(30);
            paint.setStrokeWidth(2);

            
            paint.setColor(Color.GREEN);
            canvas.drawLine(0, 95, 400, 95, paint);
            for (int i = 0; i < 400; i++)
              if (i % 10 == 0)
                canvas.drawLine(i, 95, i, 90, paint);
            canvas.drawLine(2, 110, 2, 0, paint);
            for (int i = 0; i < 80; i++)
              if (i % 10 == 0)
                canvas.drawLine(2, i, 7, i, paint);
            
            paint.setColor(Color.RED);
            
            count += 0.1;
            
            //canvas.drawPoint(count+(float)0.1, (float)Math.sin(count)*100, paint);
            if (count*5 < 400) {
              canvas.drawLine(count*5, Math.abs((float)Math.sin(count)*100), (float) ((count+0.1)*5), Math.abs((float)Math.sin(count+0.1)*100), paint);
            }  
            else {              
              //canvas.drawColor(Color.WHITE);
              count = 0;
            }
          //  text1.setText(Float.toString(count));
          //  text2.setText(Float.toString(count));
          //  text3.setText(Float.toString(count));
          
            
            //canvas.drawText((count++)+" seconds", 20, 40, paint);
            Thread.sleep(10);
            
          }
        }
        catch (Exception e) {
          e.printStackTrace();
        }
        finally {
          if (canvas != null) {
            holder.unlockCanvasAndPost(canvas);//unlock view, update change.
          }
        }
      }
    }
  }

    /**
     *
     */
  private SurfaceHolder.Callback mSurfaceCallbackPd1 = 
      new SurfaceHolder.Callback() {
        
        @Override
        public void surfaceDestroyed(SurfaceHolder holder) {
          // TODO Auto-generated method stub
          myThreadPd1.isRun = false;
        }
        
        @Override
        public void surfaceCreated(SurfaceHolder holder) {
          // TODO Auto-generated method stub
          myThreadPd1.isRun = true;
          myThreadPd1.start();
        }
        
        @Override
        public void surfaceChanged(SurfaceHolder holder, int format, int width,
            int height) {
          // TODO Auto-generated method stub
          
        }
      };
    /**
     *
     */
  private SurfaceHolder.Callback mSurfaceCallbackPd2 = 
      new SurfaceHolder.Callback() {
        
        @Override
        public void surfaceDestroyed(SurfaceHolder holder) {
          // TODO Auto-generated method stub
          myThreadPd2.isRun = false;
        }
        
        @Override
        public void surfaceCreated(SurfaceHolder holder) {
          // TODO Auto-generated method stub
          myThreadPd2.isRun = true;
          myThreadPd2.start();
        }
        
        @Override
        public void surfaceChanged(SurfaceHolder holder, int format, int width,
            int height) {
          // TODO Auto-generated method stub
          
        }
      };
  private SurfaceHolder.Callback mSurfaceCallbackPd3 = 
        new SurfaceHolder.Callback() {
          
        @Override
        public void surfaceDestroyed(SurfaceHolder holder) {
          // TODO Auto-generated method stub
          myThreadPd3.isRun = false;
        }
        
        @Override
        public void surfaceCreated(SurfaceHolder holder) {
          // TODO Auto-generated method stub
          myThreadPd3.isRun = true;
          myThreadPd3.start();
        }
        
        @Override
        public void surfaceChanged(SurfaceHolder holder, int format, int width,
            int height) {
          // TODO Auto-generated method stub
          
        }
      };
}

Java Source Code List

• Back to SQLite/data  ↑