Download File Inside Webview

Download file inside WebView

Have you tried?

mWebView.setDownloadListener(new DownloadListener() {
    public void onDownloadStart(String url, String userAgent,
                String contentDisposition, String mimetype,
                long contentLength) {
        Intent i = new Intent(Intent.ACTION_VIEW);
        i.setData(Uri.parse(url));
        startActivity(i);
    }
});

Example Link: Webview File Download - Thanks @c49

Download file in Webview

Here a test with your link (in Kotlin). If you need a Java example, please, let me know:

private fun test() {
    webView = findViewById(R.id.webView)

    webView.webViewClient = object : WebViewClient() {
        override fun shouldOverrideUrlLoading(view: WebView, url: String): Boolean {
            Log.d(TAG, "shouldOverrideUrlLoading:url = ${url}")
            if (url.contains("=download")){
                Log.d(TAG, "shouldOverrideUrlLoading: ")
                downloadFile(url)
                webView.stopLoading()
            }
            return true
        }
    }
    val url = "https://drive.google.com/uc?export=download&id=1rcPnhg9_rSes92BiQPotVjXuEAfFnyrf"
    webView.loadUrl(url)
}

fun downloadFile(url: String) {
    Log.d(TAG, "downloadFile: url = $url")
    val manager = getSystemService(Activity.DOWNLOAD_SERVICE) as DownloadManager
    val uri =
        Uri.parse(url)
    val request = DownloadManager.Request(uri)
    request.setNotificationVisibility(DownloadManager.Request.VISIBILITY_VISIBLE_NOTIFY_COMPLETED)
    val reference: Long = manager.enqueue(request)
}

image abuot download

Java code:

    private void test() {

    webView = findViewById(R.id.webView);

    webView.setWebViewClient(new WebViewClient(){
        @Override
        public boolean shouldOverrideUrlLoading(WebView view, String url) {
            if(url.contains("=download")){
                downloadFile(url);
            }

            return super.shouldOverrideUrlLoading(view, url);
        }
    });

    String url = "https://drive.google.com/uc?export=download&id=1rcPnhg9_rSes92BiQPotVjXuEAfFnyrf";
    webView.loadUrl(url);
}

private void downloadFile(String url) {
    DownloadManager manager = (DownloadManager) getSystemService(Activity.DOWNLOAD_SERVICE);
    Uri uri = Uri.parse(url);
    DownloadManager.Request request = new DownloadManager.Request(uri);
    request.setNotificationVisibility(DownloadManager.Request.VISIBILITY_VISIBLE_NOTIFY_COMPLETED);
    manager.enqueue(request);
}

How to Download a file in App with webview component?

As I said, if you want to download the file inside your webview, you should try this:

myWebView.setDownloadListener(new DownloadListener() {
@Override
public void onDownloadStart(String url, String userAgent,
                                String contentDisposition, String mimetype,
                                long contentLength) {
        DownloadManager.Request request = new DownloadManager.Request(
                Uri.parse(url));

        request.allowScanningByMediaScanner();
        request.setNotificationVisibility(DownloadManager.Request.VISIBILITY_VISIBLE_NOTIFY_COMPLETED);
        request.setDestinationInExternalPublicDir(Environment.DIRECTORY_DOWNLOADS, "name of your file");
        DownloadManager dm = (DownloadManager) getSystemService(DOWNLOAD_SERVICE);
        dm.enqueue(request);
       //you could show a message here

    }
});

Don't forget to add this permission on your manifest:

<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" /> 

And if you are using Android > 5 , you have to ask for permissions :)

Link: https://developer.android.com/training/permissions/requesting.html

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