android

Subclass of View constructor not being called

Hi all, I'm subclassing Android's view class, but whenever I make an instance of the view from another class, the constructor never gets called (or so it seems). I've implemented both public myclass (Context context) and public myclass (Context context, AttributeSet, attrs) I can't figure out what I'm doing wrong. Do I need to override...

How to make an Android app the default for a filetype?

I need my app to be the default action for opening a particular file type. How do I control this? Also, how can my app access the file being opened? Thanks. ...

Android java.lang.VerifyError for private method with annotated argument.

I have a very simple project that compiles, but can't be started on Emulator. The problem is with this method: private void bar(@Some String a) {} // java.lang.VerifyError The issue can be avoided if annotation removed private void bar(String a) {} // OK or the method visibility changed: void bar(@Some String a) {} // OK public vo...

Is it possible to create an Android Service that listens for hardware key presses?

I'd like to run an Android background service that will act as a keylistener from the home screen or when the phone is asleep. Is this possible? From semi-related examples online, I put together the following service, but get the error, "onKeyDown is undefined for the type Service". Does this mean it can't be done without rewriting La...

Multi-line EditText with Done action button.

Is it possible to have an EditText widget with android:inputType="textMultiLine" set, and android:imeOptions="actionDone" at the same time? I'd like a multi-line edit box, with the action button on the keyboard to be Done, not Enter (Carriage Return), but it doesn't seem to be working.. Thanks in advance ...

Accelerometer gravity components

Hi, I know this question is definitely solved somewhere many times already, please enlighten me if you know of their existence, thanks. Quick rundown: I want to compute from a 3 axis accelerometer the gravity component on each of these 3 axes. I have used 2 axes free body diagrams to work out the accelerometer's gravity component in the...

Eclipse Class File Metadata

In Visual Studio, I can obtain a succinct list of public methods/members exposed in a class for which I do not have the source (i.e. bundled inside a DLL) by pressing F12 (GoToDefinition). Similarly, I am learning the Android API - in Eclipse. Jumping to an Android framework method definition produces decompilation output which is not i...

don't wanna lose data on Android after uninstalling

Hi, Now I make a trial application. I'd like to store IMEI and other info in Android permanently. And I don't want to lose them after uninstalling it. I tested with shared preference but it deletes after un-installation. SharedPreferences settings = getSharedPreferences(PREFS_NAME, 0); SharedPreferences.Editor editor =...

android: consume key press, bypassing framework processing

What I want android to do: when user presses a single key, have the view respond, but do so without opening a text area and displaying the character associated with the key that was pressed, and without requiring that the Enter key be pressed, and without requiring that the user press Esc to make the text area go away. For example, when...

How to open android calculator buit-in-application

Hello Developers Thanks to every on to support android development forum. I want to make a application where when I click a button in my application then open android built-in Calculator application. That means I want to call calculator apk file from my application. Is it possible? Advanced thanks to reply ...

HTML5 Webapp as regular icon or app on iPhone and Andorid.

Hi all, Sorry if this is a noob question, I searched quite a bit and couldn't find an answer. I'm developing a html5 app that relies on sqlite for local storage. I'd like for it to appear as an app icon on the iPhone/Android screen, what's the best way to do this? Ie can I write some sort of "wrapper" app to achieve it? Thanks! ...

How to refresh an Android RelativeLayout when orientation changes without restarting the Activity?

I have an Android Activity with a RelativeLayout and I have implemented the following method to prevent the activity from being recreated on change of Orientation: @Override public void onConfigurationChanged(Configuration newConfig) { super.onConfigurationChanged(newConfig); } I am obviously not doing anything in this met...

Dismissable banner in Android

I would like to show a banner in an Android activity. The banner should be: Aligned at the bottom of the layout Take all the width and have relative height (say 100dip) Be dismissable When dismissed the rest of the layout should strech to fill the area that was occupied by the banner. What's the best way to implement this in Andro...

Using Amazon Simple Storage Service (S3) on Android

What's the best way to use Amazon Simple Storage Service (S3) on Android? For iPhone I use ASIHTTPRequest. Is there something similar for Android? ...

Android ViewFlipper is out of control

I have an app that uses a ViewFlipper to display some text and images. I have the flipper's flipinterval set to 10 seconds, but also want to allow the user to click a button that will advance the flipper. The code blow works great on 2.2, the view is changed every 10 seconds and if I click flip_button the view is changed and the auto fli...

Android Paypal One time Payment

Hi All, Does any one know, or is it possible to do one time payment, with paypal in android ? Consider the senario. Buyer purchases installs free application. Clicks on paypal module and makes in-app payment, purchases feature successfully. Buyer deletes application. All information including the feature purchase enty in database is...

Android development

Hi, I plan to work with android. Please point me some good books and blogs/discussion/tutorials/ forums for getting vast and in depth knowledge quickly about this android technology. ...

Triple-DES encryption in android.

Hi, i am new to android and planning to use Triple-DES encryption to encrypt data and store it into the DataBase in my android application. the thing is if i try to use DES or Triple DES its giving Hexadecimal encrypted string. But i need some encrypted value which looks like my previous value. i have 3 kinds of variables to encrypt. tho...

How to use google calendar api in android?

Hi all I am new to android. I parsed the calendar file. I need to add events to Google calendar from my application. I am using eclipse ide. In eclipse how to use the Google calendar api? Any jar file is needed to use the calendar api? ...

Determine application version

Hi, I wanna know if there is anyway to determine not through the packages, but through applications the version of an application which isnt the current application. let's say right now i am in the scope of app A. and i wanna run an activity from app B. i wanna check before the version code of app B. thanks, ray. ...