View with horizontal and vertical pan/drag and pinch-zoom

Question

Is it possible to have a view who supports horizontal and vertical pan/drag. On top of that, I want to be able to pinch to zoom and double tap to zoom. Does this view exists

Answer 1

To get better permormance of Zooming in Alex's code add following changes

private class ScaleListener extends ScaleGestureDetector.SimpleOnScaleGestureListener {

    @Override
    public boolean onScale(ScaleGestureDetector detector) {
        mScaleFactor *= detector.getScaleFactor();
        if (detector.isInProgress()) {
            mFocusX = detector.getFocusX();
            mFocusY = detector.getFocusY();
        }

        mFocusX = (mFocusX + mLastTouchX)/2;  // get center of touch
        mFocusY = (mFocusY + mLastTouchY)/2;  // get center of touch

        mScaleFactor = Math.max(1f, Math.min(mScaleFactor, 2.0f));
        mScaleMatrix.setScale(mScaleFactor, mScaleFactor,mFocusX, mFocusY);
        mScaleMatrix.invert(mScaleMatrixInverse);
        invalidate();
        requestLayout();

        return true;
    }
}