map doesn't redraw after scrolling if scale is greater than 1

[jgregor5]

I found a patch that works for me in an specific case, and I want to share it with you, MapView users.

I need to have max scales bigger than 1. When I patch both same lines in ZoomManager.java and ZoomPanLayout.java:

private double maxScale = 4;

everything works fine, but at some point, only when scale is greater than 1, the map tiles will not be drawn after scrolling the map.

I patched TileManager, adding invalidate() at the end, and this solved the problem:

void onRenderTaskPostExecute() {
    // set flag that we're done
    isRendering = false;
    // everything's been rendered, so get rid of the old tiles
    cleanup();
    // recurse - request another round of render - if the same intersections are discovered, recursion will end anyways
    requestRender();
    // notify anybody interested
    if ( renderListener != null ) {
        renderListener.onRenderComplete();
    }
    invalidate();
}

[moagrius]

This has been fixed in TileView (https://github.com/moagrius/TileView), which allows scale greater than 1.