Android :: Register Data Type For An Activity Dynamically And Programatically?

Nov 9, 2010

I have a use case in my application, where after certain point, I need to associate an data with an activity. So whenever an intent with an action and the data type is fired, my activity can be opened. I know that it is possible to associate a data type with an activity statically via AndroidManifest.xml.

Is it possible to register the data type for an activity dynamically and programatically?

Android :: Register data type for an activity dynamically and programatically?


Android :: Can We Register A File Type To Application?

Nov 9, 2010

I use my file explorer a lot. It eliminates much of the "You have to put the files here" sort of requirement of many applications. And in many case - movie files for example - when you touch the file, it opens it in the appropriate application. There are exceptions like *.epub files. When I touch one, I get the famous "...does not support." message. So the question is, can I "register" Laputa (for example) to be the app to open *.epub files - Similar to the File Types dialog in Windows?I suppose this might require root access?

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Android :: Register To Be Default App For Custom File Type

Aug 12, 2010

Register to be able to open files of custom type. Say i have .cool files, and if the user tries to oepn it, Android asks if they would like to open it with my application. How?

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Android :: Register File Type With Browser - Cannot Download?

Jun 13, 2010

In Android, I am trying to make it so that the user downloads a font from the browser and I am able to view the font when downloaded. After multiple issues, I still have one lingering one: Registering the file type with the browser. When trying to download with the Emulator (2.1-u1), I get "Cannot download. The content is not supported on this phone". Okay, so maybe its my manifest file. Updated with this:

<activity android:name=".MainActivity" android:label="MainActivity">
<intent-filter> <action android:name="android.intent.action.MAIN"/>
<category android:name="android.intent.category.LAUNCHER"/>
<catagory android:name="android.intent.category.BROWSABLE"/>
<data android:scheme="http"/> <data android:scheme="https"/>
<data android:scheme="ftp"/> <data android:host="*"/>
<data android:mimeType="*/*"/> <data android:pathPattern=".*zip"/>
</intent-filter> </activity>

Went back to the browser, and fails again. Restart the Emulator, still fails. Note that I got this format from posts here.

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Android :: How Can I Register My Application On Andriod To Handle Type Of QR Code?

Oct 19, 2010

The built-in barcode scanner application on Android (based, I think, on zxing) reads QR Codes and launches that data into an application based on the leading text. For example, "BEGIN:VCAL" might launch a calendar application; "http:" might launch a browser.How can I "register" my application so the OS (or the Barcode application) will call it for a specific type (i.e. leading characters) of QR Code text?

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Android :: Register Application For Files And Documented MIME - Type

Jan 28, 2010

I want to register my application for files of a certain popular and well-documented MIME-type. The problem is that Android does not seem to recognize this MIME-type. The following sample code demonstrates this:

package com.example.helloandroid;
import android.app.Activity; import android.os.Bundle; import android.util.Log; import android.widget.TextView;

public class HelloAndroid extends Activity { /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); TextView tv = new TextView(this); tv.setText("Hello, Android"); setContentView(tv); String extn = android.webkit.MimeTypeMap.getFileExtensionFromUrl("/data/a.xyz"); String xyzMimeType = android.webkit.MimeTypeMap.getSingleton().getMimeTypeFromExtension (extn); Log.d ("HelloAndroid", "extn: " + extn + " | xyzMimeType: " + xyzMimeType); }

}

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Android :: How Do You Switch Activity Programatically?

Aug 28, 2010

It seems like every example I can find of switching between Activity's involves creating an Intent and passing in the context of a View via an OnClickListener associated with a button.But what if you just decide you need to switch Activity's? In my case, a Preference value is causing an Activity switch. How do you create an Intent that can cause an Activity switch without an associated OnClickListener?

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Android :: Programatically Starting The Add Account Activity In 2.2

Aug 26, 2010

I've been experimenting with the Android SDK over the past few days, in readiness to write an App for the store, however I've run across a bit of a problem.

The App I'll be writing requires that the user has a Google account associated with the phone. Retreiving and making use of the Auth token etc was not a problem, however I would like to be able to show the activity that a user would normal reach by going through the menus Settings->Accounts->Add Account.

Now through experimentation I've been able to launch this activity from the shell using the following command. am start -n com.google.android.gsf/.login.AccountIntroActivity

I'm having trouble performing the same action in JAVA using the Intent class.

Would anyone be able to tell me firstly whether or not this can be done via JAVA, and secondly how I could go about it please?

If I have to settle for the Sync Settings screen then I will (this can be achieved through the Settings.ACTION_SYNC_SETTINGS intent), however it'd be quite nice to be able to direct the user straight to the required screen.

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Android :: Activity To Register - Wait / Force Close Notification

Jul 2, 2009

Is there any way for an activity to register for being notified if a wait/force close dialog is shown or alternatively if the user selects force close, a way to detect that in ondestroy()?

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Android : Way To Differentiate Droid Activity From A SubActivity Programatically

Jun 2, 2009

How can I differentiate an android Activity from a SubActivity programatically?
Is there any api for that?

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Android :: Retrieve User-Agent Programatically Without Having A WebView In Activity?

Sep 2, 2010

Is there a way to retrieve Browser's user-agent without having a WebView in activity?

I know it is possible to get it via WebView:

WebView view = (WebView) findViewById(R.id.someview);
String ua = view.getSettings().getUserAgentString() ;

But in my case I don't have/need a webview object and I don't want to create it just for retrieving user-agent string.

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Android :: Delete Any Private Data Programatically?

Feb 15, 2010

Is there some simple way to remove any private data (such as contacts, calendar items, media) from Android phone programatically?

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Android : Initiating A GPRS Data Connection Programatically

Jan 4, 2010

If I wish to initiate a GPRS data connection programatically through a configured access point on the device, how do I go about it ?

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Android :: Change Textview Dynamically In Same Activity?

Mar 16, 2010

I am trying to develop a simple application where users need to answer certain questions. I want that the textview should be changed dynamically in the same activity with sliding to left or right animation.

Can someone let me know how to do this?

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Android :: How To Change Label Of Activity Dynamically

Jul 14, 2010

When we create a new activity, in the Android.manifest file, we can set some text for the activity's label. It looks like:

<activity class="MyActivity" android:label="Some text here!">

Is there anyway to access that programatically and change it during runtime? Regards Dileep

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Android :: Adding Intent To Activity Dynamically?

Oct 14, 2010

I've got an activity for which I've defined an intent filter statically in AndroidManifest.xml. I'd like to register additional intents dynamically to that same intent filter in the activity's onStart() method. Is this possible? I'm trying to avoid having to implement a separate intent receiver class.

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Android :: How To Add Buttons Dynamically In List Activity

Jan 20, 2010

I want to put description and buttons dynamically can any one guide how can i do that? i have data in the form of object list/array i.e ID,Title and want to display in list activity like..

TITLE [Details Button] [Edit Button] (repeating in list activity)

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Android :: Dynamically Adding A View To Activity Layout

Aug 18, 2010

I have a custom view (an extension of a TextView) that I want to dynamically add to my Layout (don't want to include it in the main.xml file).

The book says to fetch the RelativeLayout using findViewById() in my java code then create a new instance of my custom view, then use addView on the RelativeLayout to add the new view.

I'm not getting any errors, but when I click my button to add the new view, nothing is happening (view isn't being added). Do I need to set additional properties on my custom view (layout width, layout height for example) in order for it to be shown?

Adding code

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

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Android : How To Dynamically Choose Which Activity To Launch When Opening App?

May 5, 2010

I am writing an app that requires you to be logged in to a service before using it. From my understanding of android so far, you have to choose which activity to launch when you open from the launcher in the manifest. I don't know which activity i want to launch at compile time. I want the user to click the icon, then I check and see if they're logged in, then decide based on that whether to launch the login activity, or the main app activity. Is there a way to do this?

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Android :: Add Data To Xml File Dynamically?

Oct 1, 2010

I am new to android.What i did is i am creating a xml file with some data.Now i need to add some additional data to existing xml file dynamically.How can i done this..

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Android :: List Activity With Dynamically Loaded Images Form Web

Nov 18, 2010

In my project In the first section i have parsed the xml data of Video categories and image url links from My web service.I have parsed that data and receive that data in ArrayList in My main activity.The first ArrayList is the list of video categories and the second ArrayList is the the list of video image urls and i have to display ArrayList of image urls as ImageView in ListView ,i have no idea for that,please give me some solution.

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Android :: Dynamically Build Data For ExpandableListView?

May 3, 2010

I'm using "ExpandableListView" in my application to display some options that . I need a way to build automatically the information to show when a group is expanded as the information might be different each time the group is expanded.

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Android :: Broadcast Receiver Can't Receive UMS_CONNECTED - UMS_DISCONNECTED Msg Dynamically In Activity?

Nov 20, 2009

I was make source to catch and process SD Card mount/unmount broadcast received dynamically in activity.

but the USM_CONNECTED/DISCONNECTED broadcast msg is not catched dynamically in activity like below:.

how the receiver can receive the UMS msg in activity?

below:

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

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Android : Map Activity Cannot Be Resolved To A Type

Oct 21, 2009

I have tried using MapActivity as it is suggested by this tutorial: http://developer.android.com/intl/fr/guide/tutorials/views/hello-mapv... However I get this error message in Eclipse: "MapActivity cannot be resolved to a type". Yes, I have checked Google APIs 4 and even verified that in default.properties. Code...

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Android :: Create A Single Class Which Can Be Parent For Every Type Of Activity?

Oct 7, 2010

I wish to have a single class which all of my Activity classes extend. I have ListActivities, Activities, MapActivities, TabActivities, etc in my App.

I have many of these different activities in my app, ~12 activities. I want each of them to have the methods which are in the parent class.

Right now, i have created 4 parent activity classes which are extended from a certain activity depending on their type(ListActivity, Activity, MapActivity, TabActivity)

I am creating a lot of redundant code - each of the 4 parent activities has almost identical code, in exception for what class activity it extends.

Here is an example that may clarify what my problem is:

I have an Activity: MenuScreen which extends BaseListActivity BaseListActivity extends ListActivity BaseListActivity contains methods and fields which i want all my activities to have access to I have another Activity: HomeScreen which extends BaseActivity BaseActivity extends Activity BaseActivity contains the same methods and fields which are in my other Base[<type>]Activity classes(such as BaseListActivity)

These methods/fields are copy-pasted to all my Base[<type>]Activity, and seems awfully redundant to me.

Can i create a master activity class which all types of Activity classes can use as its parent? if not, am i stuck with copy and pasting this code and feeling gross/dirty about it?

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Android : Design - Launch An Activity Based On Type Of A View

Nov 4, 2010

Should I create a Listener within a BaseAdapter or should I pass it in? I have 4 classes that inherit from a base class. I pass the Adapter a list objects.

The Adapter is eventually used with a ListActivity I want to create a View based on the derived class and I want them to launch an Activity based on the type of a View. Currently I create the intent and Listener in the BaseAdapter. Is what I'm doing a good pratice?

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Android :: Can AIDL Really Support The Map - The Data Type

Aug 10, 2010

I am curious about the data types that AIDL can support.

The document ( http://developer.android.com/guide/developing/tools/aidl.html ) says, AIDL can support String, List, Map, etc. But to me, the Map seems that it is not the member of them.

Here is my code.......................

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Android :: ImageView Scale Type Not Working In List Activity / Workaround It?

Apr 18, 2010

I have used ImageView's before and understand the different scale types that can be set... However I am having an incredibly difficult time trying to get an ImageView to scale properly in the row of a ListActivity or an ExpandableListActivity.

I have tried setting the android:scaleType property to every single value but the image never scales down. I have set the min and max sizes as well and they don't seem to have any effect. I have done both of these things in both the XMl and in code to no avail...

Does anyone have any ideas or perhaps a workaround? code...

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Android :: How To Force Meta-data Value To Type String?

Jan 28, 2010

Since the type is determined automatically by the build system ( booleans, ints, floats and strings ) i wondered if there is any way to force the datatype to string.I tried adding a space at the end ( "5555555555 "), but then the value gets interpreted as 5.5555553E9 float! ).I also tried using getString instead of get, but then null is returned.

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Android :: Determining Data Type Of Column In SQLite

Jun 23, 2010

I'm working on an Android App where the user has different options for sorting the displayed data that comes from the database. Currently my orderBy string that I pass to Androids query() method looks like this:

"LOWER("+columnName+") ASC"

The problem with this is that if the data type in the column specified by columnName is integer, calling LOWER() on it will cause it to be sorted alphabetically, i.e. based only on the leftmost digit, which of course doesn't make any sense for numeric data. Hence I only want to apply LOWER() if the data type of the column is not integer. What I have in mind is a statement like this:

"CASE WHEN [data type of columnName is integer] THEN "+columnName+" ASC ELSE LOWER("+columName+") ASC END"

The part in the brackets is what I don't know how to do. Does SQLite provide a function to determine a column's data type?

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