Abrar Jahin Abrar Jahin - 2 months ago 14
Android Question

Android WebView Not showing Anything

I am trying to use webView to show a URL in android app.

If I try with this URL-


http://stackoverflow.com


I am getting this-
enter image description here

But if I am trying with this-


https://w.soundcloud.com/player/?url=http%3A%2F%2Fapi.soundcloud.com%2Fplaylists%2F8111706%3Fsecret_token%3Ds-3aK27&color=e2ef3a&auto_play=false&show_artwork=false


I am getting this-

enter image description here

What I have done is-

Activity-

package com.appnucleus.abrarjahin.hello8920;

import android.content.Context;
import android.net.ConnectivityManager;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.webkit.WebView;
import android.widget.Toast;

public class ActivityMain extends AppCompatActivity
{
@Override
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);

if ( isNetworkAvailable() ) //check if internet available or not
{
Toast.makeText(
ActivityMain.this,
"Internet Connected",
Toast.LENGTH_LONG
).show();
WebView webview = (WebView)findViewById(R.id.webView);
webview.getSettings().setJavaScriptEnabled(true);
webview.loadUrl(getString(R.string.sound_cloud_url));
}
else //Not connected
{
Toast.makeText(
ActivityMain.this,
"Internet Disconnected",
Toast.LENGTH_LONG
).show();
}
}

//<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
//<uses-permission android:name="android.permission.INTERNET"/>
public boolean isNetworkAvailable()
{
final ConnectivityManager connectivityManager = ((ConnectivityManager) getApplicationContext().getSystemService(Context.CONNECTIVITY_SERVICE));
return connectivityManager.getActiveNetworkInfo() != null && connectivityManager.getActiveNetworkInfo().isConnected();
}
}


Layout-

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context="com.appnucleus.abrarjahin.hello8920.ActivityMain">

<WebView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/webView"
android:layout_alignParentTop="true"
android:layout_alignParentBottom="true"
android:layout_alignParentRight="true"
android:layout_alignParentEnd="true"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true" />
</RelativeLayout>


strings.xml-

<resources>
<string name="app_name" translatable="false">Hello 8920</string>
<string name="sound_cloud_url">https://w.soundcloud.com/player/?url=http%3A%2F%2Fapi.soundcloud.com%2Fplaylists%2F8111706%3Fsecret_token%3Ds-3aK27&amp;color=e2ef3a&amp;auto_play=false&amp;show_artwork=false</string>
<string name="test_url">http://stackoverflow.com/</string>
</resources>


AndroidManifest.xml-

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.appnucleus.abrarjahin.hello8920">

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

<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:supportsRtl="true"
android:theme="@style/AppTheme">
<activity android:name=".ActivityMain">
<intent-filter>
<action android:name="android.intent.action.MAIN" />

<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>

</manifest>


Can anyone please help why I am getting a blank page?

Answer

Try this Code:-

public class ActivityMain extends AppCompatActivity
{
    @Override
    protected void onCreate(Bundle savedInstanceState)
    {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        if ( isNetworkAvailable() )     //check if internet available or not
        {
            Toast.makeText(
                                ActivityMain.this,
                                "Internet Connected",
                                Toast.LENGTH_LONG
                            ).show();
            WebView webview = (WebView)findViewById(R.id.webView);
webView.setWebViewClient(new myWebClient());
            webview.getSettings().setJavaScriptEnabled(true);
            webview.loadUrl(getString(R.string.sound_cloud_url));
        }
        else    //Not connected
        {
            Toast.makeText(
                    ActivityMain.this,
                    "Internet Disconnected",
                    Toast.LENGTH_LONG
            ).show();
        }
    }

    //<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
    //<uses-permission android:name="android.permission.INTERNET"/>
    public boolean isNetworkAvailable()
    {
        final ConnectivityManager connectivityManager = ((ConnectivityManager) getApplicationContext().getSystemService(Context.CONNECTIVITY_SERVICE));
        return connectivityManager.getActiveNetworkInfo() != null && connectivityManager.getActiveNetworkInfo().isConnected();
    }

 public class myWebClient extends WebViewClient
        {
            @Override
            public void onPageStarted(WebView view, String url, Bitmap favicon) {
                // TODO Auto-generated method stub
                super.onPageStarted(view, url, favicon);
            }

            @Override
            public boolean shouldOverrideUrlLoading(WebView view, String url) {
                // TODO Auto-generated method stub
                view.loadUrl(url);
                return true;
            }
        }
}