Android : WebView UserAgent (without Having A Context)?
Dec 15, 2009
I am downloading web pages off of the Internet and some of those sites want to format their content for the actual user agent used.
I want to use the user agent that is later on used to display the stuff I download.
I can ask WebView.getWebSettings().getUserAgentString() to get the user agent, but this doesn't work all that well for my app as I need to instantiate a WebView first even though I don't need. Furthermore to do that I need to have a UI context, which I don't as this part of the app doesn't have a UI.
Is there another way to get to the User Agent?
I found in WebSettings:
// User agent strings. private static final String DESKTOP_USERAGENT = "Mozilla/5.0 (Macintosh; U; Intel Mac OS X; en)" + " AppleWebKit/528.5+ (KHTML, like Gecko) Version/3.1.2" + " Safari/525.20.1"; private static final String IPHONE_USERAGENT = "Mozilla/5.0 (iPhone; U; CPU iPhone 2_1 like Mac OS X; en)" + " AppleWebKit/528.5+ (KHTML, like Gecko) Version/3.1.2" + " Mobile/5F136 Safari/525.20.1";
But of course, this is private. Any other idea?
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Nov 6, 2009
Is there any way to launch a context menu on the links in a WebView that knows about the links it is launched upon? I would like to launch a context menu on links that I can then open in the actual Android browser or send the link by email etc.
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Mar 8, 2010
I'm trying to add custom menu items in a WebView Context Menu. Unfortunately, my items are shown in the menu of the first web page I load , but then if I load a second page, a long press only shows the standard context menu items. Mine are gone. I've put a Toast inside the code and it is displayed as well on the first loaded page, but not on the second. I'm using the code below:..............
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Jan 21, 2010
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Jul 19, 2010
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Nov 24, 2010
i have got a stupid question to ask. I created a custom ContextMenu. But when i call the menu, the menu displayed will also have the default menu added in. Is there anyway for the default ContextMenu not to appear as well?Code requested: @Override public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo)
super.onCreateContextMenu(menu, v, menuInfo);
MenuInflater inflater = getMenuInflater();
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inflater.inflate(R.menu.menu_contacts, menu);
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Jan 4, 2010
Is there a way to get the current Context instance by using a static method? I'm looking for that way because i hate saving the context instance each time it changes.
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May 15, 2009
When you are developing on an application level(Services, Activities) you always get this Context reference automatically. But what if I am on a lower level and developing a program started with app_process, how can I get hold of a Context then? Its a huge part of the API that need this context. What the proper way to create a Context instance?
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Jun 12, 2009
In an Android app, is there anything wrong with the following approach..
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Oct 10, 2010
I often run into the following dilemma: I need some singleton-like object in my app (typically some central manager-like thing) and this object needs a context for various things. This means that I either have to pass a context to all methods needing one or have some sort of init-pattern to the object. Neither is pretty I think. What is the correct way of doing this? Or is this simply (even the definition of) a Service?
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May 3, 2010
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Jul 19, 2010
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Jun 18, 2009
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Apr 20, 2010
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Aug 30, 2010
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Mar 7, 2010
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Nov 8, 2010
I have created one music app. In this app, i have loaded albums dynamically by using URL request and displayed as table layout. For each table row i registered context menu. But when the context menu is appeared by long press on each table row i could not find on which table row the context menu is appeared. If anyone know please guide me to solve this problem.
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Dec 10, 2009
I have a ListView with 5 items. Each of the items can be long pressed to open a Context Menu. The Menu has 5 options and I want them to be selectable, by having a check box. I know of the multiple choice listview but was not sure how to have this checkbox feature in a ContextMenu.Does anyone know if this is possible and if so, how?
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Nov 12, 2010
Can I add a new item in SMS context menu which can in turn invoke my app/activity?
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Jul 26, 2010
I have a context menu that starts to do some calculations when you press one of the context menu items.While the calculations are made I have a progressbar that I want to show. The progressbar is called from the calculations() method. The problem is that I can only see the context menu while the calculations are being made and the phone is more or less frozen.
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Feb 7, 2010
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May 14, 2010
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Feb 15, 2010
I'm trying to handle exceptions at a global level. My understanding is that the only way to do this is with an UncaughtExceptionHandler. However, this reduces one to the primitive java file and network i/o packages. I'd like to be able to broadcast an intent or bind to a service. Is there some way to interact with the android packages to retrieve a context in a static manner? I could probably do some hack workaround with a thread local, weak-referenced context set at the time of the exception handler, but I'd rather avoid that nastiness.
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Aug 22, 2010
I have a ListActivity with a list of names (Jacob, Will, Matt, etc.). I have a contextMenu which gives the user the option to edit or delete the person. I know how to find the id to perform the edit and delete functionality, but I can't figure out how to get the person's name to be added to the intent extras or to add a toast when a delete occurs.
Here is a snippet of code that I'm using for the context menu: Code...
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Nov 13, 2010
I've been working at this all day, and I'm really close but just can't get this to work. I have a button that pulls up an AlertDialog populated with saved entries that include Name and Price. Right now, I can click an item in the Dialog and have it automatically fill in the Name and Price fields in my activity. I want to also be able to long press an item and receive an option to delete it. This is my first try at an Android app, and a lot of this is repurposed from the Notepad Tutorial. Two things I can't figure out:
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Mar 2, 2010
In an activity it's (usually) easy to get the Context.
What if I am working with a home widget class?
These are classes that extends AppWidgetProvider, which don't contain a Context!
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May 21, 2010
If you extend SQLiteOpenHelper, for the Constructor you have to use a Context. I am wondering if there is a way to leave this out, and be able to work with database tables without a Context.
Or at least be least restrictive, I mean a way of project/class structure that will make history the several context passings I have to do now.
As it is my application has several level of classes, chained in each other, and there are a few that connects to the database, but have no whatsoever influence on the interface, so they don't actually need the Context.
Are you creating your classes in the way that you pass each time a Context to them?
If not, how you do, how you reuse a Context in a short class?
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Jun 11, 2010
I want to view two listviews at the same time. This is not the problem!
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Mar 3, 2010
I have a class defined as
public class viewGroups extends ListActivity
Somewhere in the class I have
objItem = new clsContactGroups(context);
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I know four choices, but maybe there are others...
this
this.getApplicationContext()
this.getBaseContext()
this.getParent()
I use this Context to show a Toast. So I would like to show on the front-most view visible.
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Sep 14, 2010
I am using WebView in an ActivityGroup and it will throw an exception if WebView show Dialog and complain the activity is not valid. But it's okay if I set the context of the WebView to the TOP activity. So I wish to know how to set the context in the layout xml ?
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