Download Images using android webview

Question

I want to download images inside my webview. I used a link tag like this

Download

Answer 1

Try adding download listener -

mWebView.setDownloadListener(new DownloadListener() {

    public void onDownloadStart(String url, String userAgent,
        String contentDisposition, String mimetype,
                                   long contentLength) {

            Request request = new Request(Uri.parse(url));
            request.allowScanningByMediaScanner();

                request.setNotificationVisibility(
                DownloadManager.Request.VISIBILITY_VISIBLE_NOTIFY_COMPLETED);

                request.setDestinationInExternalPublicDir(
                Environment.DIRECTORY_DOWNLOADS,    //Download folder
                "download");                        //Name of file


                DownloadManager dm = (DownloadManager) getSystemService(
                DOWNLOAD_SERVICE);

                dm.enqueue(request);  

    }
});

Answer 2

I had same problem. Here is how I solved it. I extended WebViewClient:

import java.io.File;

import android.annotation.SuppressLint;
import android.annotation.TargetApi;
import android.app.DownloadManager;
import android.content.Context;
import android.net.Uri;
import android.os.Build;
import android.os.Environment;
import android.webkit.WebView;
import android.webkit.WebViewClient;

@TargetApi(Build.VERSION_CODES.HONEYCOMB)
public class MyWebViewClient extends WebViewClient {

    private Context context;

    public MyWebViewClient(Context context) {
        this.context = context;
    }

    @SuppressLint("NewApi")
    @Override
    public boolean shouldOverrideUrlLoading(WebView view, String url) {
        if(url.contains(".jpg")){

            DownloadManager mdDownloadManager = (DownloadManager) context  
                    .getSystemService(Context.DOWNLOAD_SERVICE);  
            DownloadManager.Request request = new DownloadManager.Request(  
                    Uri.parse(url));  
            File destinationFile = new File(  
                    Environment.getExternalStorageDirectory(),  
                    getFileName(url));  
            request.setDescription("Downloading ...");  
            request.setNotificationVisibility(DownloadManager.Request.VISIBILITY_VISIBLE_NOTIFY_COMPLETED);  
            request.setDestinationUri(Uri.fromFile(destinationFile));  
            mdDownloadManager.enqueue(request);  


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

    public String getFileName(String url) {  
        String filenameWithoutExtension = "";  
        filenameWithoutExtension = String.valueOf(System.currentTimeMillis()  
                + ".jpg");  
        return filenameWithoutExtension;  
    }  


}

Of course you can modify url filter such as Uppercase etc other extensions...

In Fragment, add the line:

webPreview.setWebViewClient(new MyWebViewClient(getActivity()));

Or in Activity, add the line:

webPreview.setWebViewClient(new MyWebViewClient(this));

Of course modify webPreview to the WebView name you set

Make sure you add to WebView settings:

webSettings.setDomStorageEnabled(true);

if you have set:

webSettings.setBlockNetworkImage (false);