当同时使用Zoom和ScrollView时，可能会导致手势冲突。为了避免这种冲突，可以使用GestureDetector来处理缩放手势，而不是使用单独的Zoom控件。可以按照以下代码示例来实现：

public class ZoomAndScrollActivity extends AppCompatActivity implements GestureDetector.OnGestureListener, GestureDetector.OnDoubleTapListener {

    private ImageView imageView;
    private GestureDetector mGestureDetector;
    private float scale = 1f;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_zoom_and_scroll);

        mGestureDetector = new GestureDetector(this, this);
        mGestureDetector.setOnDoubleTapListener(this);

        imageView = findViewById(R.id.image_view);
        imageView.setOnTouchListener(new View.OnTouchListener() {
            @Override
            public boolean onTouch(View v, MotionEvent event) {
                mGestureDetector.onTouchEvent(event);
                return true;
            }
        });
    }

    @Override
    public boolean onDown(MotionEvent e) {
        return false;
    }

    @Override
    public void onShowPress(MotionEvent e) {

    }

    @Override
    public boolean onSingleTapUp(MotionEvent e) {
        return false;
    }

    @Override
    public boolean onScroll(MotionEvent e1, MotionEvent e2, float distanceX, float distanceY) {
        imageView.scrollBy((int) distanceX, (int) distanceY);
        return true;
    }

    @Override
    public void onLongPress(MotionEvent e) {

    }

    @Override
    public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY) {
        return false;
    }

    @Override
    public boolean onSingleTapConfirmed(MotionEvent e) {
        return false;
    }

    @Override
    public boolean onDoubleTap(MotionEvent e) {

        float maxScale = 2f;
        float minScale = 0.5f;

        if (scale == 1f) {
            scale = maxScale;
        } else {
            scale = 1f;
        }

        imageView.setScaleX(scale);
        imageView.setScaleY(scale);

        return true;
    }

    @Override
    public boolean onDoubleTapEvent(MotionEvent e) {
        return false;
    }
}

在上面的代码示例中，我们将缩放手势委托给GestureDetector处理，并使用ImageView的setScaleX和setScaleY方法来实现缩放效果。同时，我们使用imageView.scrollBy方法来处理滚动手势，从而实现ScrollView的效果。