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POImage view rotation on ACTION_MOVE
 

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  1. POImage view rotation on ACTION_MOVE
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    <p>I'm able to rotate image view on ACTION_DOWN.</p> <p>but its not working for ACTION_MOVE &amp; ACTION_UP.</p> <pre><code>public class RotateImage extends Activity { /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); Rotate rotate; rotate = new Rotate(this); getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN); requestWindowFeature(Window.FEATURE_NO_TITLE); setContentView(rotate); } } public class Rotate extends ImageView { Paint paint; int direction = 0; private float x; private float y; int degree = 0; float a, b, c; private float centerX ; private float centerY ; private float newX ; private float newY ; public Rotate(Context context) { super(context); // TODO Auto-generated constructor stub paint = new Paint(); paint.setColor(Color.WHITE); paint.setStrokeWidth(2); paint.setStyle(Style.STROKE); this.setImageResource(R.drawable.direction1); } @Override protected void onDraw(Canvas canvas) { int height = this.getHeight(); int width = this.getWidth(); centerX = width/2; centerY = height/2; canvas.rotate(direction, width / 2, height / 2); super.onDraw(canvas); } public void setDirection(int direction) { this.direction = direction; this.invalidate(); } @Override public boolean onTouchEvent(MotionEvent event) { System.out.println("now i'm in BEFORE calling MotionEvent.ACTION_MOVE "); if (event.getAction() == MotionEvent.ACTION_DOWN) { x = event.getX(); y = event.getY(); newX = centerX-x; newY = centerY-y; updateRotation( newX, newY); } else if (event.getAction() == MotionEvent.ACTION_MOVE) { x = event.getX(); y = event.getY(); newX = centerX-x; newY = centerY-y; updateRotation( newX, newY); } else if (event.getAction() == MotionEvent.ACTION_UP) { x = event.getX(); y = event.getY(); newX = centerX-x; newY = centerY-y; updateRotation( newX, newY); } return super.onTouchEvent(event); } private void updateRotation(float newX2, float newY2) { // TODO Auto-generated method stub degree = (int)Math.toDegrees(Math.atan2(newY, newX))-90; setDirection(degree); } } </code></pre> <p>any suggestion would be appropriated</p>
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