Android中国结

package cgd.line2; 
 
import android.app.Activity; 
import android.content.Context; 
import android.graphics.Canvas; 
import android.graphics.Color; 
import android.graphics.Paint; 
import android.graphics.Paint.Style; 
import android.graphics.RectF; 
import android.hardware.SensorListener; 
import android.os.Bundle; 
import android.view.View; 
 
public class Line2 extends Activity { 
    /** Called when the activity is first created. */ 
    @Override 
    public void onCreate(Bundle savedInstanceState) { 
        super.onCreate(savedInstanceState); 
        setContentView(new LineView(this)); 
    } 
    private class LineView extends View implements SensorListener{ 
 
                @Override 
                protected void onDraw(Canvas canvas) { 
                        // TODO Auto-generated method stub 
                        super.onDraw(canvas); 
                        canvas.drawRGB(255, 255, 255); 
                        Paint redPaint=new Paint(); 
                        redPaint.setColor(Color.RED); 
                        redPaint.setStyle(Style.STROKE);