showBannerEntry method
Implementation
bool showBannerEntry(OverlayEntry entry) {
final overlay = _getOverlay();
if (overlay == null) {
Log.console('ComBanner: 无法找到可用的Overlay');
return false;
}
if (_isBannerShowing) {
hideBannerEntry();
}
_isBannerShowing = true;
_bannerEntry = entry;
overlay.insert(entry);
return true;
}