我正在 flutter 上开发电影发现应用程序,我需要将正在播放的电影列表保存在本地存储上以供离线使用,那么我该怎么做
Future> getNowPlayingMovies() 异步 {
最终字符串现在正在播放=
'https://api.themoviedb.org/3/tv/airing_today?api_key= https://api.themoviedb.org/3/tv/airing_today?api_key=' +
'$myapikey' +
'&页=' +
'1';
var httpClient = new HttpClient();
try {
// Make the call
var request = await httpClient.getUrl(Uri.parse(nowPlaying));
var response = await request.close();
if (response.statusCode == HttpStatus.OK) {
var jsonResponse = await response.transform(utf8.decoder).join();
// Decode the json response
var data = jsonDecode(jsonResponse);
// Get the result list
List results = data["results"];
print(results);
// Get the Movie list
List<moviemodel> movieList = createNowPlayingMovieList(results);
// Print the results.
return movieList;
} else {
print("Failed http call.");
}
} catch (exception) {
print(exception.toString());
}
return null;}
List<moviemodel> createNowPlayingMovieList(List data) {
List<Searchmodel> list = new List();
for (int i = 0; i < data.length; i++) {
var id = data[i]["id"];
String title = data[i]["name"];
String posterPath = data[i]["poster_path"];
String mediatype = data[i]["media_type"];
moviemodel movie = new moviemodel(id, title, posterPath, mediatype);
list.add(movie);
}
return list; }
List<Widget> createNowPlayingMovieCardItem(
List<moviemodel> movies, BuildContext context) {
// Children list for the list.
List<Widget> listElementWidgetList = new List<Widget>();
if (movies != null) {
var lengthOfList = movies.length;
for (int i = 0; i < lengthOfList; i++) {
Searchmodel movie = movies[i];
// Image URL
var imageURL = "https://image.tmdb.org/t/p/w500/" + movie.posterPath;
// List item created with an image of the poster
var listItem = new Padding(
padding: const EdgeInsets.all(8.0),
child: new Container(
width: 105.0,
height: 155.0,
child: new Column(
children: <Widget>[
new GestureDetector(
onTap: () {
Navigator.push(
context,
new MaterialPageRoute(
builder: (_) => new Detail(movie.id)),
);
},
child: new Container(
width: 105.0,
height: 155.0,
child: new ClipRRect(
borderRadius: new BorderRadius.circular(7.0),
child: new Hero(
tag: movie.title,
child: new FadeInImage.memoryNetwork(
placeholder: kTransparentImage,
image: imageURL,
fit: BoxFit.cover,
),
),
),
decoration: new BoxDecoration(boxShadow: [
new BoxShadow(
color: Colors.black12,
blurRadius: 10.0,
offset: new Offset(0.0, 10.0)),
]),
),
),
new Padding(
padding: const EdgeInsets.only(top: 18.0),
child: new Text(
movie.title,
maxLines: 2,
),
)
],
),
),
);
;
listElementWidgetList.add(listItem);
}
} else {
print("no movie search");
}
return listElementWidgetList;}
谢谢你!