App Keep Crashing When Download File

[mthurs13]

Sorry, I just start using android studio My App keep crash when I try to download some files due to no permission to access external storage

java.lang.SecurityException: No permission to write to /storage/emulated/0/Download/test.pdf: Neither user 10089 nor current process has android.permission.WRITE_EXTERNAL_STORAGE.

There's any way to force popup permission request when WRITE_EXTERNAL_STORAGE permission is disabled by user? so my App won't crash when i click download button without external storage permission

Sorry for my bad english Thank you

[ocram]

Did you implement

public void onDownloadRequested(String url, String suggestedFilename, String mimeType, long contentLength, String contentDisposition, String userAgent) {
    // ...
}

and inside of that add a call to

AdvancedWebView.handleDownload(this, url, suggestedFilename)

as described in the README?

Can’t you check for runtime permissions as usual inside of onDownloadRequested, and if granted, call AdvancedWebView.handleDownload, otherwise, request the permission?

[mthurs13]

I already implemented code from example before But the app still crash when I trying to download a file, it wont popup the permission request So we have to manually enable WRITE_EXTERNAL_STORAGE permission from android app settings

public void onDownloadRequested(String url, String suggestedFilename, String mimeType, long contentLength, String contentDisposition, String userAgent) {
if (AdvancedWebView.handleDownload(this, url, suggestedFilename)) {
 // download successfully handled
Toast.makeText(MainActivity.this, "Download Success!", Toast.LENGTH_LONG).show();
} else {
// download couldn't be handled because user has disabled download manager app on the device
Toast.makeText(MainActivity.this, "Download Failed!", Toast.LENGTH_LONG).show();
}
}

How to automatically popup the permission request? so we dont have to enable that permission manually from android app settings

[ocram]

Well, there don’t seem to be any permission checks and request in that excerpt as suggested, right?

[mthurs13]

Did you have any example code for permission checks and request?

[ocram]

Sure, these would be the standard Android runtime permissions:

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

[katlegoN]

@mthurs13 , did you manage to get the download feature working? if so how ?