defaultBuilder method

@override Widget defaultBuilder(BuildContext context)

Default builder for the widget, which is necessary and must been override.

Implementation

@override
Widget defaultBuilder(BuildContext context) {
  return TencentCloudChatThemeWidget(
      build: (context, colorTheme, textStyle) => Scaffold(
            appBar: AppBar(
              leadingWidth: getWidth(100),
              leading: GestureDetector(
                onTap: () => Navigator.of(context).pop(),
                child: Row(children: [
                  Padding(padding: EdgeInsets.only(left: getWidth(10))),
                  Icon(
                    Icons.arrow_back_ios_outlined,
                    color: colorTheme.contactBackButtonColor,
                    size: getSquareSize(24),
                  ),
                ]),
              ),
              scrolledUnderElevation: 0.0,
              title: Text(
                tL10n.chooseAvatar,
                style: TextStyle(
                    fontSize: textStyle.fontsize_16,
                    fontWeight: FontWeight.w600,
                    color: colorTheme.settingTitleColor),
              ),
              centerTitle: true,
              actions: [
                TextButton(
                  style: TextButton.styleFrom(
                    textStyle: Theme.of(context).textTheme.labelLarge,
                  ),
                  onPressed: () {
                    _submitAvatar();
                  },
                  child: Text(
                    tL10n.confirm,
                  ),
                )
              ],
              backgroundColor: colorTheme.settingBackgroundColor,
            ),
            body: GridView.builder(
              gridDelegate: const SliverGridDelegateWithFixedCrossAxisCount(crossAxisCount: 4, childAspectRatio: 1.0),
              itemCount: groupAvatars.length,
              itemBuilder: (BuildContext context, int index) {
                return GestureDetector(
                  onTap: () {
                    setState(() {
                      widget.selectedAvatarUrl = groupAvatars[index];
                    });
                  },
                  child: Stack(
                    children: [
                      ClipRRect(
                        borderRadius: BorderRadius.circular(4),
                        child: Container(
                          margin: const EdgeInsets.all(4),
                          decoration: BoxDecoration(
                            border: Border.all(
                              color: widget.selectedAvatarUrl == groupAvatars[index]
                                  ? Theme.of(context).primaryColor
                                  : Colors.transparent,
                              width: 2,
                            ),
                            borderRadius: BorderRadius.circular(10),
                          ),
                          child: Image.network(
                            groupAvatars[index],
                            fit: BoxFit.cover,
                            width: double.infinity,
                            height: double.infinity,
                          ),
                        ),
                      ),
                      if (widget.selectedAvatarUrl == groupAvatars[index])
                        Positioned(
                          top: 8,
                          right: 8,
                          child: Container(
                            padding: const EdgeInsets.all(2),
                            decoration: BoxDecoration(
                              color: Theme.of(context).primaryColor,
                              shape: BoxShape.circle,
                            ),
                            child: const Icon(
                              Icons.check,
                              color: Colors.white,
                              size: 14,
                            ),
                          ),
                        ),
                    ],
                  ),
                );
              },
            ),
          ));
}