Apparently:

**setLoadWithOverviewMode(true)** loads the WebView completely zoomed out

**setUseWideViewPort(true)** makes the Webview have a normal viewport (such as a normal desktop browser), while when false the webview will have a viewport constrained to its own dimensions (so if the webview is 50px*50px the viewport will be the same size)

If the setUseWideViewPort(true), it loads the WebView with the attributes defined in the meta tag of the webpage. So it scales the webpage as defined in the html.

&lt;meta name=&quot;viewport&quot; content=&quot;width=device-width, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0, user-scalable=no&quot; /&gt;

I want to do Graphics programming in C. I had searched a lot about the compiler that provides a rich set of functions for doing GUI programming in C, but I couldn&#39;t find anything.

Basically I want to draw buttons and then accept the choice from the user and take an appropriate action. It would be helpful if you can suggest a C compiler, or a library that I can add to my compiler. I am working on the Windows operating system.

Presently, I am using TURBO C compiler that does not support direct methods for creating buttons. Any help would be appreciated.

How can I do GUI programming in C?

I once got the following as an interview question:

&gt; I&#39;m thinking of a positive integer n.  Come up with an algorithm that can guess it in O(lg n) queries.  Each query is a number of your choosing, and I will answer either &quot;lower,&quot; &quot;higher,&quot; or &quot;correct.&quot;

This problem can be solved by a modified binary search, in which you listing powers of two until you find one that exceeds n, then run a standard binary search over that range.  What I think is so cool about this is that you can search an infinite space for a particular number faster than just brute-force.

The question I have, though, is a slight modification of this problem.  Instead of picking a positive integer, suppose that I pick an **arbitrary rational number** between zero and one.  My question is: what algorithm can you use to most efficiently determine which rational number I&#39;ve picked?

Right now, the best solution I have can find p/q in at most O(q) time by implicitly walking the [Stern-Brocot tree][1], a binary search tree over all the rationals.  However, I was hoping to get a runtime closer to the runtime that we got for the integer case, maybe something like O(lg (p + q)) or O(lg pq).  Does anyone know of a way to get this sort of runtime?

I initially considered using a standard binary search of the interval [0, 1], but this will only find rational numbers with a non-repeating binary representation, which misses almost all of the rationals.  I also thought about using some other way of enumerating the rationals, but I can&#39;t seem to find a way to search this space given just greater/equal/less comparisons.

  [1]: http://en.wikipedia.org/wiki/Stern%E2%80%93Brocot_tree

The &quot;guess the number&quot; game for arbitrary rational numbers?

I am disappointed at the lack of documentation of WebView and related stuff.

(unless you think the following is propert documetation)

&gt; public void setLoadWithOverviewMode
&gt; (boolean overview) 
&gt; 
&gt; Set whether the
&gt; WebView loads a page with overview
&gt; mode

and:

&gt; public synchronized void setUseWideViewPort (boolean use)
&gt; 
&gt;
&gt; Tell the WebView to use the wide viewport

So: **What is &quot;Overview mode&quot; ? what is &quot;Wide viewport&quot; ?**

ps: I tried to look for webkit related docs but could not find it.

What do setUseWideViewPort() and setLoadWithOverviewMode() precisely do?

I am disappointed at the lack of documentation of WebView and related stuff.
(unless you think the following is propert documetation)
> public void setLoadWithOverviewMode
> (boolean overview)
>
> Set whether the
> WebView loads a page with overview
> mode
and:
> public synchronized void setUseWideViewPort (boolean use)
>
>
> Tell the WebView to use the wide viewport
So: What is "Overview mode" ? what is "Wide viewport" ?
ps: I tried to look for webkit related docs but could not find it.

I&#39;m using `AndroidTestCase` for unit testing. I have a unit test which is failing, but I haven&#39;t figured out how to display output from it. For example, I don&#39;t see the values I print using `Log.d` or `System.out.println` in the console nor the logcat output.

How do I view the unit test console? 

Android Test Case - how to view output?

How can i use `Environment.getExternalStorageDirectory()` to read a a stored image from the SD card or is there a better way to do it?



Android how to use Environment.getExternalStorageDirectory()

I am a puzzled about using `src` or `background` for an `ImageView`.

I know the former means the content of this `ImageView` and the latter means the background of the `ImageView`. 

But how to decide which one to use? I don&#39;t see the difference.

What is the difference between src and background of ImageView

In `ImageButton` I want to remove the standard button background image. In http://developer.android.com it is said, that one must define his\her own background image or set the background color to be transparent. I tried to set a black background, but it didn&#39;t make any effect...

How to remove ImageButton&#39;s standard background image?

I am looking for sample code in which cursor adapter is used with sqlite?

Cursor adapter and sqlite example

I have a problem with a webview which may access to the localStorage by an HTML5 app. The test.html file informs me that local 
storage is&#39;nt supported by my browser (ie. the `webview`). If you have any suggestion.. 

```java
package com.test.HelloWebView; 
import android.app.Activity; 
import android.content.Context; 
import android.os.Bundle; 
import android.util.Log; 
import android.view.KeyEvent; 
import android.webkit.WebChromeClient; 
import android.webkit.WebSettings; 
import android.webkit.WebStorage; 
import android.webkit.WebView; 
import android.webkit.WebViewClient; 

public class HelloWebView extends Activity { 

    WebView webview;

    public void onCreate(Bundle savedInstanceState) { 
        super.onCreate(savedInstanceState); 
        setContentView(R.layout.main); 
        webview = (WebView) findViewById(R.id.webview); 
        webview.getSettings().setJavaScriptEnabled(true); 
        webview.setWebViewClient(new HelloWebViewClient()); 
        webview.loadUrl(&quot;file:///android_asset/test.html&quot;); 
        WebSettings settings = webview.getSettings(); 
        settings.setJavaScriptEnabled(true); 
        settings.setDatabaseEnabled(true); 
        String databasePath = this.getApplicationContext().getDir(&quot;database&quot;, Context.MODE_PRIVATE).getPath(); 
        settings.setDatabasePath(databasePath);
        webview.setWebChromeClient(new WebChromeClient() { 
        public void onExceededDatabaseQuota(String url, String databaseIdentifier, long currentQuota, long estimatedSize, long totalUsedQuota, WebStorage.QuotaUpdater quotaUpdater) { 
                quotaUpdater.updateQuota(5 * 1024 * 1024); 
            } 
        }); 
    }

    public boolean onKeyDown(int keyCode, KeyEvent event) { 
        if ((keyCode == KeyEvent.KEYCODE_BACK) &amp;&amp; webview.canGoBack()) { 
            webview.goBack(); 
            return true; 
        } 
        return super.onKeyDown(keyCode, event); 
    }

    private class HelloWebViewClient extends WebViewClient { 
        public boolean shouldOverrideUrlLoading(WebView view, String url) { 
            view.loadUrl(url); 
            return true; 
        } 
    }
}
```



Android webview &amp; localStorage

I have been struggling to upload files from WebView since last few
days and there is no progress. I googled and implemented all suggested
solutions but none works, like: solutions suggested [here](https://stackoverflow.com/questions/4944102/android-webview-file-input),
and so on.

Problem: I have a HTML page with the following code to upload a file.
It works fine in a desktop browser like Firefox and built-in browser
of emulator / AVD i.e., when I click &quot;Browse...&quot; button rendered by
&lt;input type=&quot;file&quot; name=&quot;uploadfile&quot;&gt; element, browser opens a Dialog
box where I can choose a file to upload.

However, in the android 3.0 emulator / AVD, when I click on &quot;Choose
file&quot;, nothing happens, no file dialog is opened!!!

    &lt;form method=&quot;POST&quot; enctype=&quot;multipart/form-data&quot;&gt;
    File to upload: &lt;input type=&quot;file&quot; name=&quot;uploadfile&quot;&gt;&amp;nbsp;&amp;nbsp;
    &lt;input type=&quot;submit&quot; value=&quot;Press to Upload...&quot;&gt; to upload the file!
    &lt;/form&gt;

**Could anyone please suggest a possible solution at the earliest.**


File Upload in WebView

How can I stop a YouTube video which is played in my webview? When I click on the back button the video doesn&#39;t stop and instead continues in the background.

Code:

	webView = (WebView) findViewById(R.id.webview); 
	webView.getSettings().setPluginsEnabled(true);
	webView.getSettings().setJavaScriptEnabled(true);
	webView.getSettings().setBuiltInZoomControls(false); 
	webView.getSettings().setSupportZoom(false);
	webView.loadData(myUrl,&quot;text/html&quot;, &quot;utf-8&quot;);

How to stop youtube video playing in Android webview?

I&#39;m trying to diplay a local image in my webview :

     String data = &quot;&lt;body&gt;&quot; + &quot;&lt;img src=\&quot;file:///android_asset/large_image.png\&quot;/&gt;&lt;/body&gt;&quot;;
     webview.loadData(data, &quot;text/html&quot;, &quot;UTF-8&quot;);

This code doesn&#39;t display anything, instead of :

     webview.loadUrl(&quot;file:///android_asset/large_image.jpg&quot;);

This one works, but I need to have complex web page, not just a picture.

Any ideas ?

Android - local image in webview

I have an activity that has the following set as theme:

    android:theme=&quot;@android:style/Theme.Dialog&quot;

However, there is a title bar in the activity-dialog that appears, that uses up the little available space that I have. How can I remove it?

Android activity as dialog, but without a title bar

I have two absolutely positioned div elements that overlap. Both have set z-index values via css. I use the `translate3d` webkit transform to animate these elements off the screen, and then back onto the screen. After the transform, the elements no longer respect their set `z-index` values.

Can anyone explain what happens to the z-index / stack-order of the div elements once I do a webkit transform on them? And explain what I can do to keep the stack-order of the div elements?

Here is some more information on how I am doing the transform.

Before the transform, each element gets these two webkit transition values set via css (I am using jQuery to do the `.css()` function calls:

    element.css({ &#39;-webkit-transition-duration&#39;: duration + &#39;s&#39; });
    element.css({ &#39;-webkit-transition-property&#39;: &#39;-webkit-transform&#39; });

The element is then animated using the translate3d -webkit-transform:

    element.css({ &#39;-webkit-transform&#39;: &#39;translate3d(&#39; + hwDelta + &#39;px, 0, -1px)&#39; });

Btw, I have tried setting the 3rd parameter of `translate3d` to several different values to try to replicate the stack-order in the 3d space, but to no luck.

Also, iPhone/iPad and Android browsers are my target browser that this code needs to run on. Both support webkit transitions.


css z-index lost after webkit transform translate3d

The user-agent stylesheet for Chrome gives a border-radius of 5px to all the corners of a `&lt;select&gt;` element. I&#39;ve tried getting rid of this by applying a radius of 0px through my external stylesheet, as well inline on the &lt;select&gt; element itself; I&#39;ve tried both `border-radius:0px` and `-webkit-border-radius:0px;` and I&#39;ve tried the even more specific `border-top-left-radius:0px` (along with it&#39;s -webkit equivalent).

None are working.

When I examine the element in webkit&#39;s developer tools, the Computed Style still lists the radius as 5px. But if I click the expander arrow next to it to see the specifics, it reads: element.style - 0px. And below that it shows the external css specification I gave of 0px, along with the user-agent stylesheet specification of 5px. And both of those latter two are crossed out, as they should be.

Any ideas?

Removing rounded corners from a &lt;select&gt; element in Chrome/Webkit

I have an app where I load content to a `UIWebView` and present this. I cannot disable user interaction completely because I want the user to be able to click links. I just need to disable user selection. I found somewhere in the Internets that you can use:

    document.body.style.webkitUserSelect=&#39;none&#39;;

I tried inserting this as 
    
    [self.contentView stringByEvaluatingJavaScriptFromString:@&quot;document.body.style.webkitUserSelect=&#39;none&#39;;&quot;]; 

in `webViewDidFinishLoad:`

However, it does not work. I am still able to select and copy text inside the WebView. 

Any Ideas what might be going wrong?

Update: This only seems to happen starting with iOS 4.3




Disabling user selection in UIWebView

I am using a Direct Web Remoting (DWR) JavaScript library file and am getting an error only in Safari (desktop and iPad)

It says 

&gt; Maximum call stack size exceeded.

What exactly does this error mean and does it stop processing completely?

Also any fix for `Safari` browser (Actually on the `iPad Safari`, it says 

&gt; JS:execution exceeded timeout

which I am assuming is the same call stack issue)

Maximum call stack size exceeded error

I want to customize a scrollbar with CSS.

I use this WebKit CSS code, which works well for Safari and Chrome:

```lang-css
::-webkit-scrollbar {
  width: 15px;
  height: 15px;
}

::-webkit-scrollbar-track-piece {
  background-color: #c2d2e4;
}

::-webkit-scrollbar-thumb:vertical {
  height: 30px;
  background-color: #0a4c95;
}
```

How can I do the same thing in Firefox?

I know I can easily do it using jQuery, but I would prefer to do it with pure CSS if it&#39;s doable.

Content Type	Original Author	Original Content on Stackoverflow
Question	tacone	View Question on Stackoverflow
Solution 1 - Android	tacone	View Answer on Stackoverflow
Solution 2 - Android	Sripathi	View Answer on Stackoverflow

What do setUseWideViewPort() and setLoadWithOverviewMode() precisely do?

Android Problem Overview

Android Solutions

Solution 1 - Android

Solution 2 - Android

The "guess the number" game for arbitrary rational numbers?

How can I do GUI programming in C?

Attributions