【发布时间】：2021-07-23 15:41:21
【问题描述】：
所以我的 childWidget(VideoCard) 中有一个 videoController。 父小部件有 pageview.builder 和 childwidget，它显示一个视频，（视频提要列表）。 我需要暂停小部件以显示每 4 页滑动一次的插页式广告。 现在，如果我显示 adview，背景中的视频仍在播放。 这是父部件代码
StreamBuilder<ApiResponse<List<VideoData>>>(
stream: feedVideoBloc.videosResponseStream,
builder: (context, snapshot) {
if (snapshot.connectionState == ConnectionState.waiting) {
return Center(
child: SpinKitThreeBounce(
color: Colors.pinkAccent,
size: 30,
),
);
} else if (snapshot.data!.data!.isEmpty) {
return Center(
child: Text('No Videos'),
);
} else {
return Stack(
children: [
Container(
color: Colors.black,
child: PreloadPageView.builder(
itemCount: snapshot.data?.data?.length,
onPageChanged: (index) {
userSwiped++;
if (userSwiped == 4) {
userSwiped = 0;
_showInterstitialAdSwipe();
}
feedPageIndex = index;
print(feedPageIndex);
if (index == snapshot.data!.data!.length - 2) {
feedVideoBloc.getAllVideos();
}
},
pageSnapping: true,
controller: pageViewVideoController,
physics: BouncingScrollPhysics(),
scrollDirection: Axis.vertical,
preloadPagesCount: 1,
itemBuilder: (BuildContext context, int index) {
if (snapshot.connectionState ==
ConnectionState.waiting) {
return CircularProgressIndicator();
}
if (snapshot.data!.status == Status.LOADING) {}
if (snapshot.data!.status == Status.HAS_DATA) {
return VideoCard(
followUser: (bool current) {
feedVideoBloc.followUser(
snapshot.data!.data![index].user!.id!,
userModel.token!,
current,
index);
},
likeVideo: (bool current) {
feedVideoBloc.postVideoLike(
snapshot.data!.data![index].id!,
userModel.token!,
current,
index);
},
callback: (String url) {
_showInterstitialAdDownload(index, url);
},
key: Key("unique key $index"),
index: index,
videoData: snapshot.data!.data![index],
);
}
return CircularProgressIndicator();
},
),
),
Visibility(
visible: snapshot.data!.showPaginationLoader &&
feedPageIndex == snapshot.data!.data!.length - 1,
child: Center(
child: SpinKitThreeBounce(
color: Colors.pinkAccent,
size: 30,
)),
),
],
);
}
}),
这是内部 videoCard 小部件
@override
void initState() {
super.initState();
_videoController = VideoPlayerController.network(widget.videoData.url!);
_videoController.setLooping(true);
_initializeVideoPlayerFuture =
_videoController.initialize().then((value) => setState(() {}));
}
AspectRatio(
aspectRatio: _videoController.value.aspectRatio,
child: FittedBox(
fit: BoxFit.contain,
child: SizedBox(
width: _videoController.value.size.width,
height: _videoController.value.size.height,
child: FutureBuilder<void>(
future: _initializeVideoPlayerFuture,
builder: (context, snapshot) {
if (snapshot.connectionState == ConnectionState.done) {
return VisibilityDetector(
onVisibilityChanged: (VisibilityInfo info) {
debugPrint(
"${info.visibleFraction} of my widget is visible");
if (info.visibleFraction == 0) {
_videoController.pause();
} else {
playVideo();
}
},
key: widget.key,
child: VideoPlayer(_videoController),
);
} else
return Center(
child: SpinKitThreeBounce(
color: Colors.pinkAccent,
size: 30,
),
);
}),
),
),
),
【问题讨论】：
-
你好，你需要显示整个小部件的代码......可能是整个页面......我看不到控制器的初始化位置
-
确定我已经更新了问题，你现在可以检查代码吗。