WebView si espande all'infinito - come può essere evitato?

Sto usando una webview nella mia app per Android, tuttavia dopo aver completato il caricamento - che posso rilevare tramite onPageFinished (WebView WebView, String URL) - la pagina continua a crescere all'infinito in altezza.WebView si espande all'infinito - come può essere evitato?

Come posso evitare che ciò accada?

Ecco cosa faccio.

Ho un modello di pagina generico che contiene un ScrollView. Larghezza e altezza sono impostate per corrispondere al genitore. All'interno del ScrollView ci sono diversi elementi comuni per tutte le attività che creo. Uno di questi è LinearLayout in cui inserisco tutto il contenuto dell'utente.

..... 
<ScrollView 
android:layout_width="match_parent" 
android:layout_height="match_parent" 
android:layout_centerInParent="true" 
android:layout_margin="0dp" 
android:padding="0dp" 
android:scrollbars="none" 
> 

...... 

<LinearLayout 
     android:id="@+id/content" 
     android:layout_width="fill_parent" 
     android:layout_height="wrap_content" 
     android:layout_margin="0dp" 
     android:padding="0dp" 
     android:orientation="vertical"> 

     //EVERY USER CONTENT GOES HERE  

</LinearLayout> 


...... 

</ScrollView>

.....

In questo caso particolare il contenuto è una pagina web, che carica le mappe di Google utilizzando l'API web mobile. Ecco il file di layout

<?xml version="1.0" encoding="utf-8"?> 

    <WebView 
     android:id="@+id/maps" 
     android:layout_width="fill_parent" 
     android:layout_height="wrap_content" 
     android:layout_centerInParent="true" 
     android:layout_margin="0dp" 
     android:padding="0dp" 
    />

Ecco il codice della mia attività che inizializza il WebView

.... WebView wv = (WebView) this.content.findViewById (R.id.maps) ;

WebSettings ws = wv.getSettings();

ws.setPluginState(PluginState.ON); 
ws.setSupportZoom(false); 
ws.setLightTouchEnabled(true); 
ws.setDomStorageEnabled(true); 
ws.setAppCacheMaxSize(1024 * 1024 * 8); 
ws.setAppCachePath(context.getCacheDir().getAbsolutePath()); 
ws.setAppCacheEnabled(true); 
ws.setAllowFileAccess(true); 
ws.setCacheMode(WebSettings.LOAD_NORMAL); 
ws.setJavaScriptEnabled(true); 

wv.setInitialScale(0); 
wv.addJavascriptInterface(new Object(), "Android"); 
wv.setKeepScreenOn(true);

Infine, quando ho caricare le mappe tramite wv.loadUrl ("......");

dopo la pagina termina il caricamento ottengo i seguenti log e il WebView cresce in un ciclo infinito

02-18 14:16:06.195: VERBOSE/webview(10904): OnSizeChanged: Enter 
02-18 14:16:06.394: VERBOSE/webview(10904): OnSizeChanged: Enter 
02-18 14:16:06.480: VERBOSE/webview(10904): OnSizeChanged: Enter 
02-18 14:16:06.527: VERBOSE/webview(10904): OnSizeChanged: Enter 
02-18 14:16:06.582: VERBOSE/webview(10904): OnSizeChanged: Enter 
02-18 14:16:06.632: VERBOSE/webview(10904): OnSizeChanged: Enter 
02-18 14:16:06.683: VERBOSE/webview(10904): OnSizeChanged: Enter 
02-18 14:16:06.734: VERBOSE/webview(10904): OnSizeChanged: Enter 
02-18 14:16:06.785: VERBOSE/webview(10904): OnSizeChanged: Enter 
02-18 14:16:06.875: VERBOSE/webview(10904): OnSizeChanged: Enter 
02-18 14:16:06.957: VERBOSE/webview(10904): OnSizeChanged: Enter 
02-18 14:16:07.058: VERBOSE/webview(10904): OnSizeChanged: Enter 
02-18 14:16:07.332: VERBOSE/webview(10904): OnSizeChanged: Enter 
02-18 14:16:07.398: VERBOSE/webview(10904): OnSizeChanged: Enter 
02-18 14:16:07.449: VERBOSE/webview(10904): OnSizeChanged: Enter 
02-18 14:16:07.496: VERBOSE/webview(10904): OnSizeChanged: Enter 
02-18 14:16:07.554: VERBOSE/webview(10904): OnSizeChanged: Enter 
02-18 14:16:07.605: VERBOSE/webview(10904): OnSizeChanged: Enter 
02-18 14:16:07.652: VERBOSE/webview(10904): OnSizeChanged: Enter 
02-18 14:16:07.707: VERBOSE/webview(10904): OnSizeChanged: Enter 
02-18 14:16:07.742: VERBOSE/webview(10904): OnSizeChanged: Enter 
02-18 14:16:07.792: VERBOSE/webview(10904): OnSizeChanged: Enter 
02-18 14:16:07.839: VERBOSE/webview(10904): OnSizeChanged: Enter 
02-18 14:16:07.902: VERBOSE/webview(10904): OnSizeChanged: Enter 
02-18 14:16:07.949: VERBOSE/webview(10904): OnSizeChanged: Enter 
02-18 14:16:08.015: VERBOSE/webview(10904): OnSizeChanged: Enter 
02-18 14:16:08.066: VERBOSE/webview(10904): OnSizeChanged: Enter 
02-18 14:16:08.113: VERBOSE/webview(10904): OnSizeChanged: Enter 
02-18 14:16:08.164: VERBOSE/webview(10904): OnSizeChanged: Enter 
02-18 14:16:08.214: VERBOSE/webview(10904): OnSizeChanged: Enter 
02-18 14:16:08.250: VERBOSE/webview(10904): OnSizeChanged: Enter 
02-18 14:16:08.300: VERBOSE/webview(10904): OnSizeChanged: Enter 
02-18 14:16:08.335: VERBOSE/webview(10904): OnSizeChanged: Enter 
02-18 14:16:08.386: VERBOSE/webview(10904): OnSizeChanged: Enter 
02-18 14:16:08.437: VERBOSE/webview(10904): OnSizeChanged: Enter 
02-18 14:16:08.484: VERBOSE/webview(10904): OnSizeChanged: Enter 
02-18 14:16:08.531: VERBOSE/webview(10904): OnSizeChanged: Enter 
02-18 14:16:08.566: VERBOSE/webview(10904): OnSizeChanged: Enter 
02-18 14:16:08.613: VERBOSE/webview(10904): OnSizeChanged: Enter 
02-18 14:16:08.667: VERBOSE/webview(10904): OnSizeChanged: Enter 
02-18 14:16:08.714: VERBOSE/webview(10904): OnSizeChanged: Enter 
02-18 14:16:08.750: VERBOSE/webview(10904): OnSizeChanged: Enter 
02-18 14:16:08.847: VERBOSE/webview(10904): OnSizeChanged: Enter 
02-18 14:16:08.902: VERBOSE/webview(10904): OnSizeChanged: Enter 
02-18 14:16:08.949: VERBOSE/webview(10904): OnSizeChanged: Enter 
02-18 14:16:09.003: VERBOSE/webview(10904): OnSizeChanged: Enter 
02-18 14:16:09.035: VERBOSE/webview(10904): OnSizeChanged: Enter 
02-18 14:16:09.085: VERBOSE/webview(10904): OnSizeChanged: Enter 
02-18 14:16:09.121: VERBOSE/webview(10904): OnSizeChanged: Enter 
02-18 14:16:09.167: VERBOSE/webview(10904): OnSizeChanged: Enter 
02-18 14:16:09.218: VERBOSE/webview(10904): OnSizeChanged: Enter 
02-18 14:16:09.253: VERBOSE/webview(10904): OnSizeChanged: Enter 
02-18 14:16:09.304: VERBOSE/webview(10904): OnSizeChanged: Enter 
02-18 14:16:09.367: VERBOSE/webview(10904): OnSizeChanged: Enter 
02-18 14:16:09.417: VERBOSE/webview(10904): OnSizeChanged: Enter 
02-18 14:16:09.476: VERBOSE/webview(10904): OnSizeChanged: Enter 
02-18 14:16:09.523: VERBOSE/webview(10904): OnSizeChanged: Enter 
02-18 14:16:09.585: VERBOSE/webview(10904): OnSizeChanged: Enter 
02-18 14:16:09.632: VERBOSE/webview(10904): OnSizeChanged: Enter 
02-18 14:16:09.664: VERBOSE/webview(10904): OnSizeChanged: Enter 
02-18 14:16:09.710: VERBOSE/webview(10904): OnSizeChanged: Enter 
02-18 14:16:09.765: VERBOSE/webview(10904): OnSizeChanged: Enter 
02-18 14:16:09.812: VERBOSE/webview(10904): OnSizeChanged: Enter 
02-18 14:16:09.863: VERBOSE/webview(10904): OnSizeChanged: Enter 
02-18 14:16:09.894: VERBOSE/webview(10904): OnSizeChanged: Enter 
02-18 14:16:09.957: VERBOSE/webview(10904): OnSizeChanged: Enter 
02-18 14:16:09.992: VERBOSE/webview(10904): OnSizeChanged: Enter 
02-18 14:16:10.042: VERBOSE/webview(10904): OnSizeChanged: Enter 
02-18 14:16:10.097: VERBOSE/webview(10904): OnSizeChanged: Enter 
02-18 14:16:10.148: VERBOSE/webview(10904): OnSizeChanged: Enter 
02-18 14:16:10.179: VERBOSE/webview(10904): OnSizeChanged: Enter 
02-18 14:16:10.226: VERBOSE/webview(10904): OnSizeChanged: Enter 
02-18 14:16:10.277: VERBOSE/webview(10904): OnSizeChanged: Enter 
02-18 14:16:10.328: VERBOSE/webview(10904): OnSizeChanged: Enter 
02-18 14:16:10.378: VERBOSE/webview(10904): OnSizeChanged: Enter 
02-18 14:16:10.410: VERBOSE/webview(10904): OnSizeChanged: Enter 
02-18 14:16:10.460: VERBOSE/webview(10904): OnSizeChanged: Enter 
02-18 14:16:10.511: VERBOSE/webview(10904): OnSizeChanged: Enter 
02-18 14:16:10.546: VERBOSE/webview(10904): OnSizeChanged: Enter 
02-18 14:16:10.597: VERBOSE/webview(10904): OnSizeChanged: Enter 
02-18 14:16:10.648: VERBOSE/webview(10904): OnSizeChanged: Enter 
02-18 14:16:10.679: VERBOSE/webview(10904): OnSizeChanged: Enter 
02-18 14:16:10.730: VERBOSE/webview(10904): OnSizeChanged: Enter 
02-18 14:16:10.781: VERBOSE/webview(10904): OnSizeChanged: Enter 
02-18 14:16:10.835: VERBOSE/webview(10904): OnSizeChanged: Enter 
02-18 14:16:10.886: VERBOSE/webview(10904): OnSizeChanged: Enter 
02-18 14:16:10.925: VERBOSE/webview(10904): OnSizeChanged: Enter 
02-18 14:16:10.976: VERBOSE/webview(10904): OnSizeChanged: Enter 
02-18 14:16:11.011: VERBOSE/webview(10904): OnSizeChanged: Enter 
02-18 14:16:11.066: VERBOSE/webview(10904): OnSizeChanged: Enter 
02-18 14:16:11.125: VERBOSE/webview(10904): OnSizeChanged: Enter 
02-18 14:16:11.183: VERBOSE/webview(10904): OnSizeChanged: Enter 
02-18 14:16:11.214: VERBOSE/webview(10904): OnSizeChanged: Enter 
02-18 14:16:11.265: VERBOSE/webview(10904): OnSizeChanged: Enter 
02-18 14:16:11.320: VERBOSE/webview(10904): OnSizeChanged: Enter 
02-18 14:16:11.371: VERBOSE/webview(10904): OnSizeChanged: Enter 
02-18 14:16:11.402: VERBOSE/webview(10904): OnSizeChanged: Enter 
02-18 14:16:11.453: VERBOSE/webview(10904): OnSizeChanged: Enter 
02-18 14:16:11.507: VERBOSE/webview(10904): OnSizeChanged: Enter 
02-18 14:16:11.558: VERBOSE/webview(10904): OnSizeChanged: Enter 
02-18 14:16:11.589: VERBOSE/webview(10904): OnSizeChanged: Enter 
02-18 14:16:11.644: VERBOSE/webview(10904): OnSizeChanged: Enter 
.......... This goes on ...........

ho notato che questo accade quando la pagina contiene jQuery. Ma la stessa pagina si carica bene nel browser azionario.

Qualche idea sul perché questo accada e come può essere corretto?

Qualsiasi aiuto significativo è apprezzato ... Grazie.

fonte

2012-02-18 Nar Gar

-4

Hai provato Android: layout_height = "50dip"

valore Passo per l'altezza attributo piuttosto che usando wrap_content

fonte

2012-02-18 04:28:40

Che ovviamente impedisce la vista dal web in continua crescita, ma non si conosce la lunghezza del contenuto in anticipo, in modo che fissa l'altezza se il WebView nel mio caso non era un'opzione fin dall'inizio. –

A proposito, ho provato a caricare semplicemente "http://m.yahoo.com" (piuttosto una pagina content-heavy e javascript-heavy) - la pagina si carica e la vista web viene ridimensionata per adattarsi perfettamente ai contenuti senza problemi . Quindi immagino ci sia una vista web + combinazione di errori jQuery. –

Bene, sembra che ScrollView e WebView non vanno insieme - punto. Ho provato ad usare la vista Web al di fuori della vista di scorrimento (che ha cambiato parecchio la struttura dei miei modelli di sviluppo) - ha funzionato. Ancora non spiega il fatto che la crescita infinita avviene solo nelle pagine che hanno jQuery –

Questa è una risposta in ritardo, ma si spera che aiuta qualcuno. Stavo sperimentando lo stesso problema e il colpevole era questo CSS sottostante:

body { 
    width: 100%;  
    height: 100%; 
}

Questo cambiamento risolve il problema:

body { 
    width: 100%;  
    height: auto; 
}

fonte

2013-09-23 10:17:03 Nachi

questo post del blog risolto il mio problema. Penso che ti aiuterà.http://capdroid.wordpress.com/2014/08/07/resizing-webview-to-match-the-content-size/

private void setupWebView() { 
    webView.getSettings().setJavaScriptEnabled(true); 
    webView.setWebViewClient(new WebViewClient() { 
     @Override 
     public void onPageFinished(WebView view, String url) { 
      webView.loadUrl("javascript:MyApp.resize(document.body.getBoundingClientRect().height)"); 
      super.onPageFinished(view, url); 
     } 
    }); 
    webView.addJavascriptInterface(this, "MyApp"); 
} 

@JavascriptInterface 
public void resize(final float height) { 
    MyActivity.this.runOnUiThread(new Runnable() { 
     @Override 
     public void run() { 
      webView.setLayoutParams(new LinearLayout.LayoutParams(getResources().getDisplayMetrics().widthPixels, (int) (height * getResources().getDisplayMetrics().density))); 
     } 
    }); 
}

fonte

2014-10-25 17:26:46

WebView si espande all'infinito - come può essere evitato?

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