Android :: Any Listener For When WebView Displays Content?

Oct 31, 2010

Using WebViewClient and/or the WebChromeClient you can get a listener for when the page has loaded, however this is sometimes called before the WebView has any content in it, before it has displayed anything. What would be a efficient method for determining when the WebView has displayed it's content? When I load a page in a WebView, I want to set the scroll to a specific position. It seems that the scroll position cannot be set until the page is loaded and it has an actual content height. So, I have tried two different approaches to determining when the page has finished loading, onPageFinished() from the WebViewClient and also onProgressChanged() from the WebChromeClient.

Both of these tell me when the page has finished loading. However, the problem is that sometimes it is called before the page has been displayed and therefore the page has no height and the scroll call does nothing. I am trying to find a solid way to determine when the page is ready to be scrolled, i.e. when it has its content height. I imagine I could setup a checking loop after it finished loading to keep looking for when the height is available but that seemed like quite the hack. Hoping there is a cleaner way.

Android :: Any Listener for when WebView Displays Content?


Android :: WebView Displays .pkg File Instead Of Downloading It?

Oct 14, 2010

I run a site that offers .pkg files to my users for download to there device. The issue is instead of downloading the .pkg file it just displays the raw code of the .pkg file in the webview. How can I get this to force download to the root of the sd card? Here is what I have

package com.ps3brew.view;
import com.ps3brew.view.R;
import android.app.Activity;
import android.os.Bundle;
import android.webkit.WebView;
public class WebViewExample extends Activity {..........................

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Android :: WebView Displays Black Screen

Feb 2, 2010

I have a listview that when you click on an item it will take you to a WebView that displays some static formatted text associated with that list entry.

I had it all working with a TextView but I wanted to be able to use HTML formatting for the text and figured the WebView was the way to go. Right now it is just supposed to display a generic link for testing purposes but when the viewContent intent starts it just goes to a black screen. I can go back and pick another entry and it also just shows the black screen.

I'm not sure what code you are going to want to see so here's the viewSection class file and the viewsection.xml layout.

viewSection.java:

CODE:..............

viewsection.xml:

CODE:..................

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Android :: WebView Displays A Question Mark In A Blue Box

Nov 9, 2010

I have a WebView that displays a Google Checkout payment button in an html form.

When I run it on the emulator it works, there is the payment button and I can press it and go to the google checkout webpage.

However, when I run it on an actual device running Android 2.2 it just shows the little blue box with a question mark.

what does this mean?

CODE:.....................

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Android :: Content Rendering For WebView

Jul 15, 2009

Can anyone help me to understand how WebView decided which content it can render and which it can't? For example I am inside a webview select a link and if the link sends an XML file I want my application to handle to data instead of WebView, Is this possible?

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Android :: How To Get WebView Content Into Bitmap?

Sep 9, 2009

I am trying to get the webview's content on a bitmap so that i can save it as a image. But I am unable to so. I am getting the BLACK image save instead. All content is missing. Here is my code:
//create a webview WebView w = new WebView(this);
//Loads the url w.loadUrl("http://www.yahoo.com");
//After loading completely, take its picture Picture picture = w.capturePicture();
//Create a new canvas Canvas mCanvas = new Canvas();
//Draw the Picture into the Canvas picture.draw(mCanvas);
//Create a Bitmap Bitmap sreenshot = Bitmap.createBitmap(picture.getWidth(), picture.getHeight(),Config.ARGB_8888);
//copy the content fron Canvas to Bitmap mCanvas.drawBitmap(mBitmapScreenshot, 0, 0, null);
//Save the Bitmap to local filesystem if(sreenshot != null) {
ByteArrayOutputStream mByteArrayOpStream = new ByteArrayOutputStream();
screenshot.compress(Bitmap.CompressFormat.JPEG, 90, mByteArrayOpStream);
try { fos = openFileOutput("yahoo.jpg", MODE_WORLD_WRITEABLE);
fos.write(mByteArrayOpStream.toByteArray()); fos.close();
} catch (FileNotFoundException e) { e.printStackTrace();
} catch (IOException e) { e.printStackTrace(); } }

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Android :: Getting WebView Content Or Cookies

Mar 23, 2010

Is there a way to get the current content of a WebView? What about Cookies for a specific host+url?

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Android :: How To Mix External / Local Content In WebView?

Oct 12, 2009

I am trying to create a hybrid Android app which pulls HTML content from a web server and renders it in a WebView. However, I also want the external HTML to be able to reference images that are packaged within the android app. I realize that currently it is not possible to do something like <img src="file:///my_image.jpg" /> in the HTML. I have seen discussions of using the ContentProvider to create name spaces in the html, however all of these examples seem to assume that the actual html page is also on the device and tend to use WebView.loadData(). So, is there someway that it is possible to do this? The main goal is to package all the application images/css in the android app, but put the bulk of the application on an external server that returns the actual markup.

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Android :: Placing Webview Control In Tab Content?

Oct 18, 2009

When I place a Webview control in the content of a Tab, it is taking over the entire display! I have jacked around with the layout but I can't figure out how to "fit" the control on the tab. Is it possible to do this?

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Android :: How To Get Current Page Content Of WebView?

Feb 10, 2009

It's easy to get current page's url and title of webkit.WebView. But I could not find way to get page content of WebView.

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Android :: WebView Content To Fit Display Screen

Oct 5, 2010

I tried WebView.getSettings().setLayoutAlgorithm(LayoutAlgorithm.SINGLE_COLUMN); but view crashed in 1.6 OS. I calculate scale(webview.capturePicture()) but I cannot set it after page loaded. Is it any working solution for fitting webview content to display (1.6 OS)?

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Android :: WebView Wrap Content To Fit In Screen

Jan 2, 2010

Is it possible to Load a URL in a webView and resize it to fit the screen. I mean I want to make the WebPage small so that the user doesn't need to scroll.

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Android :: Playing YouTube Content In WebView

Oct 7, 2010

I have Java and plugins enabled. Why I can play many online flash videos in my webview, but nothing on m.youtube.com works? I would be more than satisfied with a workaround that passes the video to the YouTube application.

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Android :: Got WebView - In Its Content Is A Phone Number

Mar 6, 2009

I've got a WebView, and in its content is a phone number. I hightlight it and click - voila, taken to the phone app.

Now, all I do is add this code:

CODE:........

clicks no longer work.

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Android :: Formatting WebView Content (Text Display)

Mar 12, 2010

I am getting some HTML text from a remote server which I am displaying inside a WebView. I need to format the text display and set a font size and color for the WebView. The only way I can think of is: pre-pending the HTML string received with a tag and specify the font information there. What is the correct way to do this?

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Android :: Save WebView Content For Offline Browsing

Nov 8, 2010

I would like to implement an apps that allow users save the webpage including images. Then the users can view the web page again even there is no network access. However, I found that there is no such related API to do so.

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Android :: Deactivate Mobile Content From Website In WebView

Nov 8, 2010

My code:
WebView webView = new WebView(this); webView.getSettings().setJavaScriptEnabled(true);
webView.loadUrl("http://www.preisjaeger.at"); setContentView(webView);
The site the I downloaded appears on the Webview, but only the content for mobile devices. How to deactivate the mobile content?

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Android :: Using Webview Control To Show The Html Content

Nov 15, 2010

I am using the webview control in android to show the html content. But I face a problem that in webview I have to fix the height so thats why if html content contains less data then it wasted the space. Is there any solution to solve this problem that how can I show only same content as html has in the webview without any wasted space please help. following xml i used to draw webview is this right? In this i give fix height to webview. if i am not giving fix height then it will show only 1 line data with scroll.

CODE:.....................

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Android :: Way To Find Height Of HTML Content Displayed In A Webview?

Apr 8, 2009

My application generates an HTML file which needs to be displayed to the user . For this purpose I'm using the loadData() API provided by Webview. This HTML file is updated every 2 secs & the same is loaded again using loadData() to display the updated values. On reloading the file the Webview starts displaying again from the top of the file causing the user to always scroll down to the location where he previously was. This causes a very bad user experience. To overcome this issue an alternative that I could think of was to split the file to multiple files that can exactly fit in the the screen. For this I need to find the height of the HTML content that can loaded in a web view. From the WebView documentation I found that an API getContentHeight() is provided for this purpose. Although this method returns me 0 on the first attempt. On subsequent attempt it gives me the height of the page that was previously loaded.

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Android :: Droid Adding HTML Content On A Webview Without Space / How To Fix?

May 5, 2010

I am trying to add an HTML content to a web view. If the words in the HTML content are without spaces then webview keeps that particular word on the same line.I want that content to be wrapped and be on the next line.Is it possible to do that.I am attaching a sample code that can reproduce the issue.

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Android :: Pause Flash Content In WebView When Activity Isn't Visible?

Aug 7, 2010

I am experimenting with using a WebView to display Flash content inside my activity. Everything is working pretty well, but when the user hits the home key to put the activity into the background, the Flash content keeps running (sound keeps playing, etc)

I have noticed that both the stock Android browser and Dolphin Browser seem to avoid this problem, and properly pause the Flash content when the browsing activity is put into the background.

Ideally I would like a solution that kills the WebView completely if the activity is finishing, but pauses it otherwise (basically copying the default behavior of the browser)

Here is a simple test I put together that loads a game on Kongregate which has some background music:

CODE:..............

I took a look at the latest source for the stock browser, and it seems to be doing something similar (calling pauseTimers/resumeTimers), although I fear the code I have been looking at is out of date, because it is calling functions that don't seem to exist anymore.

I did verify that the call to pauseTimers is working by testing with a simple JavaScript setInterval which updates a counter. Is there something else obvious that I should be trying in regard to Window or View management?

The documentation for the mobile Flash player says:


Flash Player will also automatically pause SWF playback it is not in view or the foreground application, for example when a call is received or alarm goes off, to reduce CPU utilization, battery usage and memory usage.


This seems to be working perfectly in both the stock browser and Dolphin Browser, but not in my app. Any ideas/solutions would be greatly appreciated!

Update: Here is the function we ended up adding to our activity to get this to work. We call it with "onPause" in the activity's onPause function and "onResume" in the activity's onResume function:

CODE:....................

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Android : How To Assign An WebView Text Content To String Variable?

Oct 14, 2010

Is there any possibility to assign WebView text content to ordinary String variable?if it so.

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Android : WebView - Not Able To Go Back To My Activity Screen Once The Content Is Displayed

Apr 9, 2009

Step 1: I am subclassing WebView and rendering html content properly. The intial content is very small with a div and image /link This is displayed in a LInear Layout along with a TextView and ListView. That is my first screen/activity of the application.

Step 2: When I click on a link on this webview, it goes through the webViewclient and expands to full screen to fit the content of the requested page.

After Step 2, I am not able to go back to my activity screen once the content is displayed. When I click on the back button to getback to my activity screen close my activity and goes to the phone's applications desktop. (i.e goes out of my application).

Step 3: In order to fix this issue, I stopped setting my own subclasssed WebViewClient. After doing this, the it seems to render the clicked page in a webView as subactivity. Now When I click on backbutton, it goes back to the activity screen. But, the issue now is, I am not catch event when a link is clicked. How can I catch click events in this case.

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Android :: Switching Content Providers For Same Content URI

Aug 12, 2009

This may seem like a stupid question but I need to be sure. I was wondering if it was possible to pro-grammatically change the Content Provider used when making a query given a Content URI. The reason being I need to know if it's possible to force the Calendar/Contacts applications to read from a different database via a different Content Provider temporarily while my application is running, so that I can reuse those applications to display my own data. Since the Content URI s are hard coded in each of these applications the only way it might be possible is if we could somehow temporarily change the Content Provider used for a given URI. I know this probably isn't possible, I just need to show it isn't. Could someone confirm this can't be done?

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Android : Content Provider - No Link Between Content Provider And Its CONTENT_URI Declared In Another Class

Mar 1, 2010

I am having a hard time understanding content providers. In the notepad example and others, the content provider never even declares its CONTENT_URI anywhere inside itself, yet the docs say to publicly declare this. It's declared in a different class. So when an activity queries a content provider with a CONTENT_URI, how does Android know which one I want. I see no link between a content provider and its CONTENT_URI declared in another class.

I also don't how to think about intents and content providers. I know that you don't call an intent on a content provider. But an activity queries a content provider without an intent, and an activity has a mimetype attribute in the manifest that would seem to tie it to a content provider.

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Android :: Custom Content Provider Like Contact Content Provider?

Mar 11, 2010

how can i create a custom content provider like contact content provider? i know how to create custom content providers but i want to integarte to device such a way that it canbe accessed by all application installed in that device.

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Android :: Displays On Emulator / Not On Phone?

Apr 2, 2010

The following code will display location data on the screen in the emulator but not on an actual device. code...

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Android :: Spinner Displays Wrong Value

Oct 10, 2010

I have a simple program where I set a spinner to a position. I then call a second module and when I return, I reset the spinner. The spinner display does not display the spinner value. When you tap the spinner, it IS pointing to the correct value, but it displays an incorrect value. In fact, it actually steps down.

I wrote the following simple program to demonstrate. This only happens when the form has a spinner within either a Linearlayout or TableLayout with at lease 1 other element.

CODE:................

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Android :: Admob Ad Never Displays In View

Aug 26, 2010

I am trying to get AdMob ads to display in my android application and have been unable to do so. I have contacted their support and have not received any response in almost a week, so I figured I would now ask for help here.

First some code:

CODE:................

Yes, admob-publisher-id-here is my real publisher id in the actual manifest file.


In the logcat, i see the following:

CODE:..................

The AdListener is indicating that it is unable to retrieve the ad. I have an active data connection, plus I am in Test Mode, so it is supposed to always show an ad, according to the admob wiki. There are no errors in the logcat, nor is the application force closing at all.

I got a response from admob, but all they said was i was creating the aeveiw twice, which I am not

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General :: YouTube App Displays Ads On Android But Not On IOS?

Sep 12, 2013

Youtube android app shows skippable ads, while doesn't happen on the iOS counterpart. How can this be explained? Ads are not shown by Apple request?

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