[英]Winjs project - use File picker to select audio file and play it
我正在使用 Visual Studio 2017,winjs 項目。 如何使用 FilePicker 打開文件對話框並選擇音頻文件,然后播放該文件? 多謝你們。
您可以在 JS 代碼中使用 Fileopenpicker,如下所示:
var openPicker = new Windows.Storage.Pickers.FileOpenPicker();
openPicker.viewMode = Windows.Storage.Pickers.PickerViewMode.thumbnail;
openPicker.suggestedStartLocation = Windows.Storage.Pickers.PickerLocationId.picturesLibrary;
// Users expect to have a filtered view of their folders depending on the scenario.
// For example, when choosing a documents folder, restrict the filetypes to documents for your application.
openPicker.fileTypeFilter.replaceAll([".png", ".jpg", ".jpeg"]);
// Open the picker for the user to pick a file
openPicker.pickSingleFileAsync().then(function (file) {
if (file) {
// Application now has read/write access to the picked file
WinJS.log && WinJS.log("Picked photo: " + file.name, "sample", "status");
} else {
// The picker was dismissed with no selected file
WinJS.log && WinJS.log("Operation cancelled.", "sample", "status");
}
});
您需要將文件類型更改為您需要的目標類型。
有一個 JS 示例可以直接參考: FilePicker - JS 。
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