Jak załadować zewnętrzną stronę internetową wewnątrz WebView

Mój problem polega na tym, że strona nie jest ładowana wewnątrz webview.

mWebview.loadUrl("http://www.google.com"); uruchamia przeglądarkę internetową...

Oto kod mojej aktywności:

import android.app.Activity;
import android.os.Bundle;
import android.webkit.WebView;

public class Main extends Activity {

    private WebView mWebview;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        mWebview = new WebView(this);
        mWebview.loadUrl("http://www.google.com");
        setContentView(mWebview);
    }   
}

Dodałem wymagane pozwolenie w manifeście:

<uses-permission android:name="android.permission.INTERNET" />
Author: Chilledrat, 2011-09-05

9 answers

Dzięki temu postowi w końcu znalazłem rozwiązanie. Oto kod:

import android.app.Activity;
import android.os.Bundle;
import android.webkit.WebResourceError;
import android.webkit.WebResourceRequest;
import android.webkit.WebView;
import android.webkit.WebViewClient;
import android.widget.Toast;
import android.annotation.TargetApi;

public class Main extends Activity {

    private WebView mWebview ;

    @Override
    public void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        mWebview  = new WebView(this);

        mWebview.getSettings().setJavaScriptEnabled(true); // enable javascript

        final Activity activity = this;

        mWebview.setWebViewClient(new WebViewClient() {
            @SuppressWarnings("deprecation")
            @Override
            public void onReceivedError(WebView view, int errorCode, String description, String failingUrl) {
                Toast.makeText(activity, description, Toast.LENGTH_SHORT).show();
            }
            @TargetApi(android.os.Build.VERSION_CODES.M)
            @Override
            public void onReceivedError(WebView view, WebResourceRequest req, WebResourceError rerr) {
                // Redirect to deprecated method, so you can use it in all SDK versions
                onReceivedError(view, rerr.getErrorCode(), rerr.getDescription().toString(), req.getUrl().toString());
            }
        });

        mWebview .loadUrl("http://www.google.com");
        setContentView(mWebview );

    }

}
 196
Author: Gilbou,
Warning: date(): Invalid date.timezone value 'Europe/Kyiv', we selected the timezone 'UTC' for now. in /var/www/agent_stack/data/www/doraprojects.net/template/agent.layouts/content.php on line 54
2018-01-10 06:08:13

Spróbuj tego

Webviewlayout.xml:

<?xml version="1.0" encoding="utf-8"?>
<WebView xmlns:android="http://schemas.android.com/apk/res/android"
         android:id="@+id/help_webview"
         android:layout_width="fill_parent"
         android:layout_height="fill_parent"
         android:scrollbars="none"
/>

W Twojej aktywności:

WebView webView;
setContentView(R.layout.webviewlayout);
webView = (WebView)findViewById(R.id.help_webview);
webView.getSettings().setJavaScriptEnabled(true);
webview.loadUrl("http://www.google.com");

Update

Dodaj webView.setWebViewClient(new WebViewController()); do swojej aktywności.

Klasa WebViewController:

public class WebViewController extends WebViewClient {

    @Override
    public boolean shouldOverrideUrlLoading(WebView view, String url) {
        view.loadUrl(url);
        return true;
    }
}
 32
Author: Farhana Haque,
Warning: date(): Invalid date.timezone value 'Europe/Kyiv', we selected the timezone 'UTC' for now. in /var/www/agent_stack/data/www/doraprojects.net/template/agent.layouts/content.php on line 54
2013-11-13 15:10:48
public class WebViewController extends WebViewClient {
    @Override
    public boolean shouldOverrideUrlLoading(WebView view, String url) {
        view.loadUrl(url);
        return true;
    }
}
webView.setWebViewClient(new WebViewController());
 14
Author: Rahul,
Warning: date(): Invalid date.timezone value 'Europe/Kyiv', we selected the timezone 'UTC' for now. in /var/www/agent_stack/data/www/doraprojects.net/template/agent.layouts/content.php on line 54
2018-03-06 15:18:52

Proszę użyć tego kodu: -

Main.Xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical" android:layout_width="fill_parent"
    android:layout_height="fill_parent" android:background="@drawable/background">
    <RelativeLayout android:layout_width="fill_parent"
        android:layout_height="wrap_content" android:background="@drawable/top_heading"
        android:id="@+id/rlayout1">
        <TextView android:layout_width="wrap_content"
            android:layout_centerVertical="true" android:layout_centerHorizontal="true"
            android:textColor="#ffffff" android:textSize="22dip"
            android:textStyle="bold" android:layout_height="wrap_content"
            android:text="More Information" android:id="@+id/txtviewfbdisplaytitle" />
    </RelativeLayout>
    <RelativeLayout android:layout_width="fill_parent"
        android:layout_height="fill_parent" android:layout_below="@+id/rlayout1"
        android:id="@+id/rlayout2">
        <WebView android:id="@+id/webview1" android:layout_width="fill_parent"
            android:layout_height="fill_parent"
            android:layout_weight="1.0" />
    </RelativeLayout>
</RelativeLayout>

Główna aktywność.Java

public class MainActivity extends Activity {
    private class MyWebViewClient extends WebViewClient {
          @Override
          public boolean shouldOverrideUrlLoading(WebView view, String url) {
              view.loadUrl(url);
              return true;
          }
    }
    Button btnBack;
    WebView webview;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        // TODO Auto-generated method stub
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

        webview=(WebView)findViewById(R.id.webview1);
        webview.setWebViewClient(new MyWebViewClient());
        openURL();
    }

     /** Opens the URL in a browser */
    private void openURL() {
        webview.loadUrl("http://www.google.com");
        webview.requestFocus();
    }
}

Wypróbuj ten kod, jeśli jakieś zapytanie mnie zapyta.

 11
Author: Dipak Keshariya,
Warning: date(): Invalid date.timezone value 'Europe/Kyiv', we selected the timezone 'UTC' for now. in /var/www/agent_stack/data/www/doraprojects.net/template/agent.layouts/content.php on line 54
2016-08-30 11:51:20

Możesz zrobić tak.

webView = (WebView) findViewById(R.id.webView1);
webView.getSettings().setJavaScriptEnabled(true);
webView.loadUrl("Your URL goes here");
 1
Author: KarthikKPN,
Warning: date(): Invalid date.timezone value 'Europe/Kyiv', we selected the timezone 'UTC' for now. in /var/www/agent_stack/data/www/doraprojects.net/template/agent.layouts/content.php on line 54
2016-07-21 13:27:31

To bardzo proste spróbuj zintegrować te linie kodu najpierw weź uprawnienia w pliku Manifest Androida

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

To napisz jakiś kod w swojej aktywności .xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context="com.example.MainActivity">

<WebView xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/help_webview"
    android:layout_width="match_parent"
    android:layout_height="match_parent"

/>

</LinearLayout>

Następnie napisz ten kod w swojej głównej aktywności.java

import android.app.Activity;
import android.content.Intent;
import android.content.res.Resources;
import android.net.Uri;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.KeyEvent;
import android.view.Window;
import android.webkit.WebResourceRequest;
import android.webkit.WebSettings;
import android.webkit.WebView;
import android.webkit.WebViewClient;
import android.widget.Toast;

public class MainActivity extends Activity{
    private WebView mWebview ;
    String link = "";// global variable
    Resources res;// global variable
    @Override


      protected void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            requestWindowFeature(Window.FEATURE_NO_TITLE);
            setContentView(R.layout.activity_modernherbal_main);
            mWebview  = (WebView) findViewById(R.id.help_webview);
            WebSettings webSettings = mWebview.getSettings();
            webSettings.setJavaScriptEnabled(true);
            webSettings.setUseWideViewPort(true);
            webSettings.setLoadWithOverviewMode(true);



        final Activity activity = this;

        mWebview.setWebViewClient(new WebViewClient() {
            public void onReceivedError(WebView view, int errorCode, String description, String failingUrl) {
                Toast.makeText(activity, description, Toast.LENGTH_SHORT).show();
            }


});

    mWebview .loadUrl("http://www.example.com");

}

}

Wypróbuj to pomoże Ci rozwiązać twój problem

 1
Author: Pronab Roy,
Warning: date(): Invalid date.timezone value 'Europe/Kyiv', we selected the timezone 'UTC' for now. in /var/www/agent_stack/data/www/doraprojects.net/template/agent.layouts/content.php on line 54
2017-08-09 19:37:17

Po prostu wejdź do pliku XML i podaj id do swojego webView ' a następnie w Javie wklej tę linię:

   public class Main extends Activity {

private WebView mWebview;

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.Your_layout_file_name);

    mWebview = (WebView)findViewById(R.id.id_you_gave _to_your_wenview_in_xml);
    mWebview.loadUrl("http://www.google.com");
    }   
}
 1
Author: Ankush Rawat,
Warning: date(): Invalid date.timezone value 'Europe/Kyiv', we selected the timezone 'UTC' for now. in /var/www/agent_stack/data/www/doraprojects.net/template/agent.layouts/content.php on line 54
2018-03-24 12:52:12

Try this;

webView.loadData("<iframe src='http://www.google.com' style='border: 0; width: 100%; height: 100%'></iframe>", "text/html; charset=utf-8", "UTF-8");
 0
Author: alicanozkara,
Warning: date(): Invalid date.timezone value 'Europe/Kyiv', we selected the timezone 'UTC' for now. in /var/www/agent_stack/data/www/doraprojects.net/template/agent.layouts/content.php on line 54
2017-12-25 18:46:27

Dodaj poniżej metodę w klasie aktywności.Tutaj przeglądarka to nic innego jak Twój obiekt webview.

Teraz możesz łatwo przeglądać strony www.

@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
    if ((keyCode == KeyEvent.KEYCODE_BACK) && browser.canGoBack()) {
        browser.goBack();
        return true;
    }
    return false;
}
 0
Author: G . Anil Guptha,
Warning: date(): Invalid date.timezone value 'Europe/Kyiv', we selected the timezone 'UTC' for now. in /var/www/agent_stack/data/www/doraprojects.net/template/agent.layouts/content.php on line 54
2018-03-06 15:14:12