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我正在爲Android平臺構建一個離子應用程序。我正在使用cordova的FileTransfer插件來下載文件。我可以下載多個文件,但無法爲所有併發下載顯示單個進度欄。在單個進度條中顯示下載多個文件的進度
在單個進度條中顯示多個文件進度的正確方法是什麼?下面是我的參考功能代碼:
功能通過在循環中調用一個單一的文件下載功能
$scope.downloadSongs = function() {
angular.forEach($scope.album, function (song) {
if (song.checked) {
$scope.downloadSong(song);
}
});
};
功能來下載文件
$scope.downloadSong = function (song) {
$scope.downloads = $scope.downloads + 1;
console.log("Downloads - " + $scope.downloads);
var url = decodeURI(song.link);
console.log(url);
var filename = song.name + ".mp3";
var folder = song.folder;
var targetPath = cordova.file.externalRootDirectory + "musicbox/" + folder + "/" + filename;
$cordovaFileTransfer.download(url, targetPath)
.then(function (entry) {
cordova.plugins.notification.local.schedule({
title: "Download Complete",
message: song.name
});
}, function (error) {
alert(JSON.stringify(error));
}, function (progress) {
$timeout(function() {
$scope.downloadProgress = (progress.loaded/progress.total) * 100;
})
});
};
下載多個文件