I want to develop browser app but i am getting errors help me please : Hi I am new to android i want to develop a browser app now i am trying to develop it in this i am getting errors. i tried in another method also on that it's asking on which browser you have to open like that but for me i want to open in my app only  please help me any one thanks stack over flow .

#WebviewActivity.java

    package com.example.admin.fristapp;
    
    import android.app.Activity;
    import android.os.AsyncTask;
    import android.support.v7.app.AppCompatActivity;
    import android.os.Bundle;
    import android.webkit.WebResourceRequest;
    import android.webkit.WebView;
    import android.webkit.WebViewClient;
    
    public class WebviewActivity extends Activity {
        WebView webview1;
       // String url = "http://www.google.com";
    
        @Override
        protected void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.activity_webview);
            webview1 = (WebView) findViewById(R.id.webview1);
          //  webview1.loadUrl(url);
    
            //MyBrowser my ;
    
            new Background().execute();
    
    
        }
    
        public class MyBrowser extends WebViewClient {
            @Override
            public boolean shouldOverrideUrlLoading(WebView view, String url) {
                view.loadUrl(url);
                return true;
            }
        }
    
    
    
    
        public class Background extends AsyncTask<String,String,String>
        {
            @Override
            protected void onPostExecute(String s)
            {
                super.onPostExecute(s);
            }
            @Override
            protected void onPreExecute()
            {
                super.onPreExecute();
            }
    
            @Override
            protected String doInBackground(String... strings)
            {
                search();
                return null;
            }
        }
        public void search()
        {
            webview1.setWebViewClient(new WebviewActivity.MyBrowser());
            String url = "http://www.google.com";
            webview1.getSettings().setJavaScriptEnabled(true);
            webview1.loadUrl(url);
        }
    }

#logcat
 java.lang.Throwable: A WebView method was called on thread 'AsyncTask #4'. All WebView methods must be called on the same thread. (Expected Looper Looper (main, tid 1) {180a245b} called on null, FYI main Looper is Looper (main, tid 1) {180a245b})
                                                                                at android.webkit.WebView.checkThread(WebView.java:2290)

