画面上の画像の位置を移動するときに、画像ビューの正しい x と y の位置と画像ビューの x と y 座標を取得するためのアプリを実装しています。アプリを実行して画像ビューを移動すると、0 と 1 しか表示されません。x と y の位置を見つける方法はありますか?
これが私のメインアクティビティクラスです:
public class MainActivity extends Activity{
static final int NONE = 0;
static final int DRAG = 1;
static final int ZOOM = 2;
int mode = NONE;
Matrix matrix = new Matrix();
Matrix savedMatrix = new Matrix();
PointF start = new PointF();
PointF mid = new PointF();
float oldDist = 1f;
int[] location = new int[4];
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
final ImageView image = (ImageView) findViewById(R.id.ImageViewOne);
final Bitmap icon = BitmapFactory.decodeResource(this.getResources(),
R.drawable.yellowrose);
image.setImageBitmap(icon);
image.setOnTouchListener(new View.OnTouchListener()
{
public boolean onTouch(View v, MotionEvent event)
{
final ImageView view = (ImageView) v;
switch (event.getAction() & MotionEvent.ACTION_MASK)
{
case MotionEvent.ACTION_DOWN:
savedMatrix.set(matrix);
start.set(event.getX(), event.getY());
mode = DRAG;
System.out.println("mode = drag");
RectF r = new RectF();
matrix.mapRect(r);
break;
case MotionEvent.ACTION_UP:
case MotionEvent.ACTION_POINTER_UP:
mode = NONE;
System.out.println("mode = none = " + mode);
break;
case MotionEvent.ACTION_MOVE:
if (mode == DRAG)
{
matrix.set(savedMatrix);
matrix.postTranslate(event.getX() - start.x,
event.getY() - start.y);
}
else if (mode == ZOOM)
{
float newDist = spacing(event);
if (newDist > 10f)
{
matrix.set(savedMatrix);
float scale = newDist / oldDist;
System.out.println("scale " + scale);
matrix.postScale(scale, scale, mid.x, mid.y);
}
}
break;
case MotionEvent.ACTION_POINTER_DOWN:
oldDist = spacing(event);
if (oldDist > 10f)
{
savedMatrix.set(matrix);
midPoint(mid, event);
mode = ZOOM;
System.out.println("mode " + mode);
}
break;
}
// Perform the transformation
view.setImageMatrix(matrix);
return true;
}
});
}
private float spacing(MotionEvent event)
{
float x = event.getRawX() - event.getRawX();
System.out.println("spacing x" + x);
float y = event.getRawY() - event.getRawY();
System.out.println("spacing y" + y);
return FloatMath.sqrt(x * x + y * y);
}
private void midPoint(PointF point, MotionEvent event)
{
float x = event.getRawX() + event.getRawX();
System.out.println("midpoint x" + x);
float y = event.getRawY() + event.getRawY();
System.out.println("midpoint y" + y);
point.set(x / 2, y / 2);
}
}