public async Task <string> GetJsonDataSource()
{
var jsonfilename = await StorageDataHelper.GetJsonFileNameFromMusicLibraryAsync(RootFolder, JsonLocalFileName);
if (string.IsNullOrEmpty(jsonfilename))
{
Uri dataUri = new Uri(JsonDataUri);
HttpClient client = new HttpClient();
using (var response = await client.GetAsync(dataUri))
{
var json = await response.Content.ReadAsStringAsync();
await StorageDataHelper.writeTextToSDCard(RootFolder, JsonLocalFileName, json);
return(json);
}
}
else
{
// read from sd card
var json = await StorageDataHelper.readTextFromSDCard(RootFolder, JsonLocalFileName);
return(json);
}
}
private async Task <string> DownloadAudioFile()
{
var pronunciation = "";
switch (AudioType)
{
case Mp3Type.Unknown:
pronunciation = "am_";
break;
case Mp3Type.American:
pronunciation = "am_";
break;
case Mp3Type.English:
pronunciation = "";
break;
default:
pronunciation = "am_";
break;
}
var part = bookTextKey.Substring(0, bookTextKey.LastIndexOf("-"));
var part2 = bookTextKey.Substring(bookTextKey.LastIndexOf("-") + 1);
//http://f1.w.hjfile.cn/doc/touch_m/nce/3-41-50/am_yuanwen_42.mp3
//http://f1.w.hjfile.cn/doc/touch_m/nce/3-41-50/yuanwen_42.mp3
var downloadUriString = string.Format("http://f1.w.hjfile.cn/doc/touch_m/nce/{0}/{1}yuanwen_{2}.mp3",
part, pronunciation, part2);
var fileName = getAudioFileName;
var file = await StorageDataHelper.GetAudioFileFromMusicLibraryAsync("WP.NCE", fileName);
if (string.IsNullOrEmpty(file))
{
var filefullname = await StorageDataHelper.DownloadAudioFileToMusicLibraryAsync(downloadUriString, "WP.NCE", fileName);
return(filefullname);
}
return(file);
}
private async void PlayAppBarButton_Click(object sender, RoutedEventArgs e)
{
bool failed = false;
try
{
await Helper.ShowSystemTrayAsync(Colors.CornflowerBlue, Colors.White, text : "loading audio...");
var file = await StorageDataHelper.GetAudioFileFromMusicLibraryAsync("WP.NCE", getAudioFileName);
if (MediaPlayerState.Playing == BackgroundMediaPlayer.Current.CurrentState)
{
if (!string.IsNullOrEmpty(file))
{
string[] fileInfo = new[] { bookTitle, file, bookTextKey, "autoplay" };
var message = new ValueSet
{
{
"samePause-notPlay",
fileInfo
}
};
BackgroundMediaPlayer.SendMessageToBackground(message);
await Helper.HideSystemTrayAsync(originbackgroundColor, originforegroundColor, originopacity);
}
}
else if (MediaPlayerState.Paused == BackgroundMediaPlayer.Current.CurrentState)
{
if (!string.IsNullOrEmpty(file))
{
string[] fileInfo = new[] { bookTitle, file, bookTextKey, "autoplay" };
var message = new ValueSet
{
{
"samePlay-notPlay",
fileInfo
}
};
BackgroundMediaPlayer.SendMessageToBackground(message);
await Helper.HideSystemTrayAsync(originbackgroundColor, originforegroundColor, originopacity);
}
}
else if (MediaPlayerState.Closed == BackgroundMediaPlayer.Current.CurrentState)
{
if (!string.IsNullOrEmpty(file))
{
string[] fileInfo = new[] { bookTitle, file, bookTextKey, "autoplay" };
var message = new ValueSet
{
{
"Play",
fileInfo
}
};
BackgroundMediaPlayer.SendMessageToBackground(message);
await Helper.HideSystemTrayAsync(originbackgroundColor, originforegroundColor, originopacity);
}
}
}
catch
{
failed = true;
}
if (failed)
{
await Helper.HideSystemTrayAsync(originbackgroundColor, originforegroundColor, originopacity);
}
}
