Android6.0 WebView Shows Blank Page

Question

I have tried to load a page with webView, and it just shows an empty page on my cellphone. Here are the codes and classes. AndroidManifest.xml

Solution 1:

Add internet permission in you manifest. Without it your application will not be able to access internet services.

<manifest xlmns:android...>
...
<uses-permission  android:name="android.permission.INTERNET" />
<application ...
</manifest>

Edited -

In android M and above you have to ask permissions from the user at runtime. Before calling

new HttpThread("https://m.baidu.com/",webView,handler).start();

run this code for granting permissions -

if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
                if (checkSelfPermission(Manifest.permission.INTERNET)
                        != PackageManager.PERMISSION_GRANTED) {
                    // Should we show an explanation?
                    if (shouldShowRequestPermissionRationale(
                            Manifest.permission.INTERNET)) {
                        // Explain to the user why we need to read the contacts
                    }
                    requestPermissions(new String[]{Manifest.permission.INTERNET},
                            1);
                    // MY_PERMISSIONS_REQUEST_READ_EXTERNAL_STORAGE is an
                    // app-defined int constant
                    return;
                }else {
                    new HttpThread("https://m.baidu.com/",webView,handler).start();
                }
            }else {
                new HttpThread("https://m.baidu.com/",webView,handler).start();
            }

And override this method -

@Override
public void onRequestPermissionsResult(int requestCode,
                                       String permissions[], int[] grantResults) {
    switch (requestCode) {
        case 1: {
            // If request is cancelled, the result arrays are empty.
            if (grantResults.length > 0
                    && grantResults[0] == PackageManager.PERMISSION_GRANTED) {

                // permission was granted, yay! Do the
                // contacts-related task you need to do.
                new HttpThread("https://m.baidu.com/",webView,handler).start();
            } else {

                // permission denied, boo! Disable the
                // functionality that depends on this permission.
                Snackbar.make(parent, "Click on allow to Access Internet in you application", Snackbar.LENGTH_LONG)
                        .setAction("CLOSE", new View.OnClickListener() {
                            @Override
                            public void onClick(View view) {

                            }
                        })
                        .setActionTextColor(getResources().getColor(android.R.color.holo_purple
                        )).show();
            }
            return;
        }

        // other 'case' lines to check for other
        // permissions this app might request
    }
}

After this it should run in your Android M phone too. Hope it works.

Solution 2:

there is no need to load data in a SubThread...

you can log the stringbuilder info before webView loads it

Baca Juga

webView.loadData(String url) works well

－－－update i try to run your code (23 and 19):

Solution 3:

Try loading data like this:

webView.loadData(sb.toString(),"text/html",UTF-8);

or this:

webView.loadDataWithBaseURL("",sb.toString(),"text/html",UTF-8,"");

Index Android

Android6.0 WebView Shows Blank Page

Solution 1:

Solution 2:

Solution 3:

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