HOW TO LEARN ANDROID FROM ZERO

WebView.txt

//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:id="@+id/activity_main"
    android:layout_width="match_parent"
    android:layout_height="match_parent"

    tools:context="com.hussienalrubaye.androidpermission.MainActivity">

    <LinearLayout
        android:orientation="vertical"
        android:layout_width="match_parent"
        android:layout_height="match_parent">

        <LinearLayout
            android:orientation="horizontal"
            android:layout_width="match_parent"
            android:layout_height="wrap_content">

            <EditText
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:inputType="textPersonName"
                android:text=""
                android:hint="Enter URL"
                android:ems="10"
                android:id="@+id/etURL"
                android:layout_weight="1" />

            <Button
                android:onClick="buGo"
                android:text="Go"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:id="@+id/button2"
                android:layout_weight="1" />
        </LinearLayout>

        <LinearLayout
            android:orientation="horizontal"
            android:layout_width="match_parent"
            android:layout_height="wrap_content">

            <Button
                android:onClick="buBack"
                android:text="Back"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:id="@+id/button4"
                android:layout_weight="1" />

            <Button
                android:text="Forword"
                android:onClick="buForword"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:id="@+id/button3"
                android:layout_weight="1" />
        </LinearLayout>

        <WebView
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:id="@+id/wv1" />
    </LinearLayout>
</RelativeLayout>


// java code
public class MainActivity extends AppCompatActivity {
//TextView tvDisplay;
    EditText etURL;
    WebView wv1;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
       // tvDisplay=(TextView)findViewById(R.id.tvDisplay);
        wv1=(WebView)findViewById(R.id.wv1);
        wv1.setWebViewClient(new myWebView());
        wv1.getSettings().setJavaScriptEnabled(true);
        wv1.setScrollBarStyle(View.SCROLLBARS_INSIDE_OVERLAY);
        etURL=(EditText)findViewById(R.id.etURL);
        wv1.loadUrl("http://alruabye.net");


    }


    public void buGo(View view) {

        LoadURL(etURL.getText().toString());
    }

 
    void LoadURL(String url){
        this.url=url;
        wv1.loadUrl(url);
    }

    public void buBack(View view) {
        wv1.goBack();
    }

    public void buForword(View view) {
        wv1.goForward();
    }

    private class myWebView extends WebViewClient{

        @Override
        public boolean shouldOverrideUrlLoading(WebView view, WebResourceRequest request){
            return true;
        }

    }
}

//acces to internet
    <uses-permission android:name="android.permission.INTERNET"></uses-permission>