在 Web 视图中打开网站时出现白屏

当我想在Webview中打开我的网站时，它只会给我一个白屏。我不知道怎么做，因为如果我在 WebView 中放置另一个网站，它可以正常工作。代码：

WebView view = (WebView) this.findViewById(R.id.webView);
    view.setWebViewClient(new WebViewClient());
    view.getSettings().setJavaScriptEnabled(true);
    view.getSettings().setJavaScriptCanOpenWindowsAutomatically(true);
    view.loadUrl("http://136.243.18.214/~kennenof/");

如果是因为网站而来的，这里是它链接到的第一页的代码：

  <?php require 'header.php';
if (isset($_SESSION['loggedin']) && $_SESSION['loggedin'] == true) {
$username = $_SESSION['username'];
$sql = "SELECT answered_questions FROM tbl_users WHERE username = :username";
$q= $db->prepare($sql);
$q->bindParam(':username', $username);
$q->execute();
$answered_questions = $q->fetch();
    $sql = "SELECT fiches FROM tbl_users WHERE username = :username";
    $q= $db->prepare($sql);
    $q->bindParam(':username', $username);
    $q->execute();
    $fiches = $q->fetch();
    $fiches = $fiches[0];
?>
<div class="container">
    <div class="col-md-4 col-md-push-4 " style="height: 100%;">
        <img src="public/assets/img/logo.PNG" alt="logo" class="img-responsive logo" width="120">
        <div class="message">
            <?php
            if($messageBag->hasMsg()){
                echo $messageBag->show();
            }
            ?>
        </div>
        <?php if($answered_questions[0] <= 12 && $fiches < 15) { ?>
        <h1 style="text-align: center" class="centered htext">Uniek! Nieuw!<br>10 cent per quiz <br> en <u>elke maand</u><br> kan je <b>100 euro</b><br> verdienen.</h1>
        <a href="uitleg.php" class="btn home-button home-1">LEES UITLEG</a>
        <a href="public/views/play" class="btn home-button home-2">SPEEL GRATIS</a>
        <a href="buy.php" class="btn home-button home-3">KOOP GAMES</a>
        <a href="public/views/play" class="btn home-button home-4">SPEEL MET JE GAMES</a>
        <?php } else if($fiches > 11) {
            ?>
            <h1 style="text-align: center" class="centered htext">Uniek! Nieuw!<br>10 cent per quiz <br> en <u>elke maand</u><br> kan je <b>100 euro</b><br> verdienen.</h1>
            <a href="public/views/play" class="btn home-button home-3">START NU MET JE QUIZZEN</a>
            <a href="uitleg.php" class="btn home-button home-4">LEES UITLEG</a>
        <?php
        } else {
            ?>
            <h1 style="text-align: center" class="centered htext">Uniek! Nieuw!<br>10 cent per quiz <br> en <u>elke maand</u><br> kan je <b>100 euro</b><br> verdienen.</h1>
            <a href="uitleg.php" class="btn home-button home-2">LEES UITLEG</a>
            <a href="buy.php" class="btn home-button home-3">KOOP GAMES</a>
            <a href="public/views/play" class="btn home-button home-4">SPEEL MET JE GAMES</a>
        <?php
        }
        ?>
    </div>
</div>
<?php require 'footer.php';
} else {
    ?>
    <div class="container">
        <div class="col-md-4 col-md-push-4 " style="height: 100%">
            <img src="public/assets/img/logo.PNG" alt="logo" class="img-responsive logo" width="120">
            <div class="message">
                <?php
                if($messageBag->hasMsg()){
                    echo $messageBag->show();
                }
                ?>
            </div>
            <h1 style="text-align: center" class="centered htext">Uniek! Nieuw!<br>10 cent per quiz <br> en <u>elke maand</u><br> kan je <b>100 euro</b><br> verdienen.</h1>
            <a href="uitleg.php" class="btn home-button home-1">LEES UITLEG</a>
            <a href="public/views/play" class="btn home-button home-2">SPEEL GRATIS</a>
            <a href="buy.php" class="btn home-button home-3">KOOP GAMES</a>
            <a href="public/views/play" class="btn home-button home-4">SPEEL MET JE GAMES</a>
        </div>
    </div>
<?php
}
?>

编辑：

我还发现了此错误：

04-28 14：50：25.537 16679-16679/nl.kennenofkiezen.kennenofkiezen E/ActivityThread： 正在暂停未恢复的活动： {nl.kennenofkiezen.kennenofkiezen/nl.kennenofkiezen.kennenofkiezen.KennenofKiezen

} java.lang.RuntimeException： Performing pause of Activity that not is resumed： {nl.kennenofkiezen.kennenofkiezen/nl.kennenofkiezen.kennenofkiezen.KennenofKiezen} at android.app.ActivityThread.performPauseActivity（ActivityThread.java：3215） atandroid.app.ActivityThread.performPauseActivity（ActivityThread.java：3203） at android.app.ActivityThread.handlePauseActivity（ActivityThread.java：3181） at android.app.ActivityThread.access$1100（ActivityThread.java：161） at android.app.ActivityThread$H.handleMessage（ActivityThread.java：1276） at android.os.Handler.dispatchMessage（Handler.java：102） at android.os.Looper.loop（Looper.java：157） at android.app.ActivityThread.main（ActivityThread.java：5356） atjava.lang.reflect.Method.invokeNative（Native Method） at java.lang.reflect.Method.invoke（Method.java：515） at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run（ZygoteInit.java：1265） at com.android.internal.os.ZygoteInit.main（ZygoteInit.java：1081） at dalvik.system.NativeStart.main（Native Method）

<!-- GCM connects to Internet Services. -->
<uses-permission android:name="android.permission.INTERNET" />
<!-- Network State Permissions -->
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />

import android.app.Activity;
import android.app.Dialog;
import android.app.ProgressDialog;
import android.content.DialogInterface;
import android.content.DialogInterface.OnCancelListener;
import android.graphics.Bitmap;
import android.os.Bundle;
import android.webkit.WebView;
import android.webkit.WebViewClient;
public class KennenofKiezen extends Activity {
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.universal_web_view);
        WebView view = (WebView) this.findViewById(R.id.webView);
        view.setWebViewClient(new myWebViewClient());
        view.getSettings().setJavaScriptEnabled(true);
        view.getSettings().setJavaScriptCanOpenWindowsAutomatically(true);
        view.loadUrl("http://136.243.18.214/~kennenof/");
    }
    class myWebViewClient extends WebViewClient {
        @Override
        public boolean shouldOverrideUrlLoading(WebView view, String url) {
            return super.shouldOverrideUrlLoading(view, url);
        }
        private int webViewPreviousState;
        private final int PAGE_STARTED = 0x1;
        private final int PAGE_REDIRECTED = 0x2;
        Dialog dialog = new Dialog(KennenofKiezen.this);
        @Override
        public void onPageStarted(WebView view, String url, Bitmap favicon) {
            super.onPageStarted(view, url, favicon);
            webViewPreviousState = PAGE_STARTED;
            if (dialog == null || !dialog.isShowing())
                dialog = ProgressDialog.show(KennenofKiezen.this, "", "Loading Please Wait", true, true,
                        new OnCancelListener() {
                            @Override
                            public void onCancel(DialogInterface dialog) {
                                // do something
                            }
                        });
        }
        @Override
        public void onPageFinished(WebView view, String url) {
            if (webViewPreviousState == PAGE_STARTED) {
                if (null != dialog)
                    dialog.dismiss();
                dialog = null;
            }
        }
    }
}

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