很久以后,我用的是WebView。所以让我问一下我有什么相位问题。
- 我有谷歌,Blob URL
但我找不到解决方案或任何提示,所以我必须在这里发布问题。
-我WebView
在android端加载一个网站。在他们的 On Button 处"SAVE-AS" to download an image
。
- 现在,当我尝试它 Google Chrome app
并working
fine
正确下载时。
- 现在,webview
在我的应用程序中,DownloadListener
我得到了类似的 Blob URL
斑点:http: //-----cantshare-----.com/7e7452c8-62ca-4231-8640-0e9de715e073
所以下载管理器download nothing
检查我的代码
webview = (WebView) findViewById(R.id.webview);
WebSettings settings = webview.getSettings();
settings.setJavaScriptCanOpenWindowsAutomatically(true);
settings.setJavaScriptEnabled(true);
webview.setScrollBarStyle(WebView.SCROLLBARS_OUTSIDE_OVERLAY);
final AlertDialog alertDialog = new AlertDialog.Builder(this).create();
final ProgressDialog progressBar = ProgressDialog.show(this, "WebView Example", "Loading...");
webview.setWebViewClient(new WebViewClient() {
public boolean shouldOverrideUrlLoading(WebView view, String url) {
Log.i(TAG, "Processing webview url click...");
view.loadUrl(url);
return true;
}
public void onPageFinished(WebView view, String url) {
Log.i(TAG, "Finished loading URL: " + url);
if (progressBar.isShowing()) {
progressBar.dismiss();
}
}
public void onReceivedError(WebView view, int errorCode, String description, String failingUrl) {
Log.e(TAG, "Error: " + description);
}
});
webview.setDownloadListener(new DownloadListener() {
public void onDownloadStart(String url, String userAgent, String contentDisposition, String mimetype, long contentLength) {
Uri webpage = Uri.parse(url);
if (!url.startsWith("http://") && !url.startsWith("https://")) {
webpage = Uri.parse("http://" + url);
}
DownloadManager.Request request = new DownloadManager.Request(
webpage);
request.setMimeType(mimetype);
String cookies = CookieManager.getInstance().getCookie(url);
request.addRequestHeader("cookie", cookies);
request.addRequestHeader("User-Agent", userAgent);
request.setDescription("Downloading file...");
request.setTitle(URLUtil.guessFileName(url, contentDisposition,
mimetype));
request.allowScanningByMediaScanner();
request.setNotificationVisibility(DownloadManager.Request.VISIBILITY_VISIBLE_NOTIFY_COMPLETED);
request.setDestinationInExternalFilesDir(Main2Activity.this,
Environment.DIRECTORY_DOWNLOADS,".pdf");
DownloadManager dm = (DownloadManager) getSystemService(DOWNLOAD_SERVICE);
dm.enqueue(request);
Toast.makeText(getApplicationContext(), "Downloading File",
Toast.LENGTH_LONG).show();
}
});
Q1 - 任何人都可以提出建议如何从 Blob URL 下载文件?
Q2 - 必须在服务器端更改?
Q3 - 任何其他方式而不是 Downloadermanager?
编辑
我试过 .pdf /.png/.jpeg
但是no luck
;(
setDestinationInExternalFilesDir(Main2Activity.this,
Environment.DIRECTORY_DOWNLOADS,".pdf");