private void updateAvailableDimensions(Context context) {
WindowManager windowManager = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE);
Display display = windowManager.getDefaultDisplay();
Resources resources = context.getResources();
DisplayMetrics dm = resources.getDisplayMetrics();
Configuration config = resources.getConfiguration();
// There are three possible configurations that the dynamic grid accounts for, portrait,
// landscape with the nav bar at the bottom, and landscape with the nav bar at the side.
// To prevent waiting for fitSystemWindows(), we make the observation that in landscape,
// the height is the smallest height (either with the nav bar at the bottom or to the
// side) and otherwise, the height is simply the largest possible height for a portrait
// device.
Point size = new Point();
Point smallestSize = new Point();
Point largestSize = new Point();
display.getSize(size);
display.getCurrentSizeRange(smallestSize, largestSize);
availableWidthPx = size.x;
if (config.orientation == Configuration.ORIENTATION_LANDSCAPE) {
availableHeightPx = smallestSize.y;
} else {
availableHeightPx = largestSize.y;
}
// Check to see if the icons fit in the new available height. If not, then we need to
// shrink the icon size.
float scale = 1f;
int drawablePadding = iconDrawablePaddingOriginalPx;
updateIconSize(1f, drawablePadding, resources, dm);
float usedHeight = (cellHeightPx * numRows);
Rect workspacePadding = getWorkspacePadding();
int maxHeight = (availableHeightPx - workspacePadding.top - workspacePadding.bottom);
if (usedHeight > maxHeight) {
scale = maxHeight / usedHeight;
drawablePadding = 0;
}
updateIconSize(scale, drawablePadding, resources, dm);
// Make the callbacks
for (DeviceProfileCallbacks cb : mCallbacks) {
cb.onAvailableSizeChanged(this);
}
}
void addCallback(DeviceProfileCallbacks cb) {
mCallbacks.add(cb);
cb.onAvailableSizeChanged(this);
}
