如何在移动设备(Android、iPhone、Windows)中下载base-64源图像并保存到设备手机内存中
我使用telerik app builder创建了一个示例应用程序。我创建了一个简单视图和一个js文件,在视图中渲染一个图像,并将其转换为base-64。我需要下载此图像并使用javascript将其保存到设备内部存储 我使用了javascript的download.js插件,但下载功能不起作用。请给出建议 我的代码如下:如何在移动设备(Android、iPhone、Windows)中下载base-64源图像并保存到设备手机内存中,android,ios,asp.net,download,telerik-appbuilder,Android,Ios,Asp.net,Download,Telerik Appbuilder,我使用telerik app builder创建了一个示例应用程序。我创建了一个简单视图和一个js文件,在视图中渲染一个图像,并将其转换为base-64。我需要下载此图像并使用javascript将其保存到设备内部存储 我使用了javascript的download.js插件,但下载功能不起作用。请给出建议 我的代码如下: 我找到了自己问题的答案 您可以使用cordova filetransfer在移动设备中下载图像 function download() { var filepath
我找到了自己问题的答案 您可以使用cordova filetransfer在移动设备中下载图像
function download()
{
var filepath = encodeURI("http://www.telerik.com/sfimages/default-source/logos/app_builder.png"),
window.requestFileSystem(LocalFileSystem.PERSISTENT, 0, function (fileSystem) {
fileSystem.root.getFile("sample.jpg", { create: true, exclusive: false }, function (fileEntry) {
// get the full path to the newly created file on the device
var localPath = fileEntry.fullPath;
// massage the path for android devices (not tested)
if (device.platform === "Android" && localPath.indexOf("file://") === 0) {
localPath = localPath.substring(7);
}
// download the remote file and save it
var remoteFile = filepath;
//loadingOverlay.displayLoading("Image will be save on your device.");
var fileTransfer = new FileTransfer();
fileTransfer.download(remoteFile, localPath, function (newFileEntry) {
// successful download, continue to the next image
var dwnldImagePath = newFileEntry.fullPath;
console.log('successful download');
},
function (error) { // error callback for #download
console.log('Error with #download method.', error);
});
});
function(error) { // error callback for #getFile
console.log('Error with #getFile method.', error);
});
})
}
我找到了自己问题的答案 您可以使用cordova filetransfer在移动设备中下载图像
function download()
{
var filepath = encodeURI("http://www.telerik.com/sfimages/default-source/logos/app_builder.png"),
window.requestFileSystem(LocalFileSystem.PERSISTENT, 0, function (fileSystem) {
fileSystem.root.getFile("sample.jpg", { create: true, exclusive: false }, function (fileEntry) {
// get the full path to the newly created file on the device
var localPath = fileEntry.fullPath;
// massage the path for android devices (not tested)
if (device.platform === "Android" && localPath.indexOf("file://") === 0) {
localPath = localPath.substring(7);
}
// download the remote file and save it
var remoteFile = filepath;
//loadingOverlay.displayLoading("Image will be save on your device.");
var fileTransfer = new FileTransfer();
fileTransfer.download(remoteFile, localPath, function (newFileEntry) {
// successful download, continue to the next image
var dwnldImagePath = newFileEntry.fullPath;
console.log('successful download');
},
function (error) { // error callback for #download
console.log('Error with #download method.', error);
});
});
function(error) { // error callback for #getFile
console.log('Error with #getFile method.', error);
});
})
}