Android :: Database Reading Problem Throws Exception

Mar 30, 2010

I am having this problem with the android database. I adopted the DBAdapter file the NotepadAdv3 example from the google android page.

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

The error that i am receiving is from Log.e(TAG, e.toString()) in the methods retrieveKey() and storeKey() "no such table: myuserkey: , while compiling: SELECT userkey FROM myuserkey"

Android :: database reading problem throws exception


Android :: IsUserAMonkey Throws Exception

Oct 17, 2010

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

I get the following exception when trying to use the isUserAMonkey API on a keydown. mAM = (android.app.ActivityManager)getSystemService(Context.ACTIVITY_SERVICE); if (mAM.isUserAMonkey()) {return true;} Any reason why this may be happening?

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Android :: ProgressDialog In AsyncTask Throws An Exception

Jun 25, 2010

I'm trying to make a simple ProgressDialog appear while my AsyncTask is fetching data. In my onPreExecute() method I have this: pd = ProgressDialog.show(c, "Loading...", "Please wait");

c is the context passed into the constructor of my AsyncTask from this.getApplicationContext(). Unfortunately, I keep getting an exception with this message: Unable to add window -- Token null is not for an application

What am I doing wrong?

Using this instead of this.getApplicationContext() has revealed another problem. When I call ProgressDialog.show(..., a ProgressDialog is displayed, but not until after the AsyncTask has completed. In other words, the data loads and then the dialog is displayed. If I include pd.dismiss() in my onPostExecute() then I never even see the dialog (presumable because it is closed before it ever gets opened).

It turns out that fetch.get() was hogging the UI thread and not letting the ProgressDialog display.

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Android :: Calling NotifyDataSetChanged() Throws Exception

Oct 7, 2010

I have a ListView that I'm binding to an adapter. The adapter is a protected member of my main class. I have a listener thread that receives data and updates the source list for my adapter. When I call the adapter's notifyDataSetChanged() method, an exception is thrown:

Runtime Exception: PhoneLayoutInflater(LayoutInflater).inflate(int, ViewGroup, boolean) line: 322

I've read that the notifyDataSetChanged() method has to be called on the UI thread, and I'm doing that. In fact, just to be sure, I even update the ListView's data source on the UI thread. All I do in my listener thread is update a protected member that houses the data. Here's an example of what I'm doing (note that I don't have the part of the code that calls the AsyncTask, but it's fired from a listener):

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

Does anyone have any pointers or ideas as to why I'm getting this exception? Any help is much appreciated.

Here are the layout files, as requested:

main.xml:

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

row.xml:

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

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Android :: PreferenceScreen - Intent - Element Throws Exception

Sep 17, 2010

I've got a probleme with an exception, but I don't know why I get this exception.

The project is about implementing an AbstractAccountAuthenticator with an AbstractThreadedSyncAdapter to sync certain data on a server with a content provider.

I made everything and both adding accounts and syncing is running without any problems.

Now I've tried to add a Preference-Screen just like suggested in the android reference (search for AbstractAccountAuthenticator, it is explained there) via xml like this:

autenticator.xml:

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

The Preference-Screen-xml looks like this:

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

The screen is promted how it should be, but and that is the problem: When I click on the PreferenceScreen with the intent it leads to a crash of the system (both in the emulator and my HTC-Desire).

Logcat says:

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

Here the part of the manifest, where the activity is defined:

CODE:.......

The whole test-code (it is my project on the essentials to find the problem) is to find at googlecode (http://code.google.com/p/ cleanproject/source/browse/) (Eclipse-Project)

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Android :: Application Throws Exception When Rotate Device

Jul 11, 2010

I have developed simple application of progress bar in that when I hit the button then it will do some work in background and one progress bar is visible on foreground. afte completing back ground work it display the same screen. It works fine if I don't rotate mobile but when I rotate mobile then it throws java.lang.IllegalArgumentException: View not attached to window manager

I know when we rotate the device or open keypad it starts activity restarted. But How to avoid this error. My code is.

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

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Android :: Starting Service From Other Apk - Throws NoClassDefFoundError Exception

Jul 31, 2010

I have two projects in Eclipse: service and UI client.

In onCreate in UI client I have:startService(new Intent(this, ExampleService.class));

But this fragment: ExampleService.class throws NoClassDefFoundError exception at runtime. I have installed ExampleService.apk, and ExampleUiClient.apk. Project compiles, and everything looks fine. What I am doing wrong?

Is it possible to start service from other apk?

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Android :: How To Handle Throws Clause In Java Exception Handling

Sep 4, 2010

I have class A in which I have a method openfileConnec().

It was written like the below:

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

Now I come to class B where I will call this method like the below:

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

I was asked a question in an interview as follows:

Why does the method have a throws Exception in its declaration? Is it that on of the methods called in the implementation throws the base class exception? Also If we get a exception during calling the method (fileConnect( )) control goes to catch block. After executing catch where should the control go, what should be sent to base case?

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Android :: Handler From A Runnable Throws Null Pointer Exception

Sep 20, 2010

I have a Thread that downloads data from internet

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

There is an activity that needs to be updated according to downloaded data.

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

Whenever I run above code I get NullPointer Exception .Please help me to update the view.

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Android :: Activity - Sometimes - Throws Wrong State Class Exception When Being Resumed After Kill

Nov 24, 2009

I'm testing how my app behaves when killed by the OS due to low memory conditions. I always have three activities on the stack, like: A B C (then C launches maps or some other heavy process)

when my app is killed, and I return to it, C starts itself up again ok. When I hit the back button to go to B, I [sometimes] get an exception thrown which I can't trace. Output is below. I don't know where to go from here. I've only seen one other post mentioning this exception, but it was related to a reproducable error when rotating the device. This only happens sometimes.

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

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Android :: IO Exception While Reading From Input Stream?

Aug 13, 2009

I'm running into a strange problem while reading from an Input Stream on the Android platform. I'm not sure if this is an Android specific issue, or something I'm doing wrong in general. The only thing that is Android specific is this call:
Input Stream is = getResources().openRawResource(R.raw.myfile);
This returns an Input Stream for a file from the Android assets. Anyways, here's where I run into the issue:
bytes[] buffer = new bytes[2];
is.read(buffer);
When the read() executes it throws an IOException. The weird thing is that if I do two sequential single byte reads (or any number of single byte reads), there is no exception. Ie, this works:
byte buffer;
buffer = (byte)buffer.read();
buffer = (byte)buffer.read();
Any idea why two sequential single byte reads work but one call to read both at once throws an exception? The Input Stream seems fine... is.available() returns over a million bytes (as it should).
Stack trace shows these lines just before the Input Stream.read():
java.io.IOException
at android.content.res.AssetManager.readAsset(Native Method)
at android.content.res.AssetManager.access$800(AssetManager.java:36)
at android.content.res.AssetManager$AssetInputStream.read(AssetManager.java:542)
Changing the buffer size to a single byte still throws the error. It looks like the exception is only raised when reading into a byte array.
If I truncate the file to 100,000 bytes (file is: 1,917,408 bytes originally) it works fine. Is there a problem with files over a certain size?

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Android :: Reading Database Files In 2.1

Oct 22, 2010

Is it possible to read the database files in Android 2.1 ? For example, files in /data/data/com.android.providers.contacts/databases/ contacts2.db. If yes, how? And is it possible to replace this file programmatically in order to import / export contacts or any other database files?

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Android : Working With SQLite Database / Getting Cursor Out Of Bounds Exception

Jun 30, 2009

I am having some trouble working with the SQLite database. I am able to create the database, add to it, and delete from it with no problem by following the Notepad examples, but I am trying to avoid duplicates and therefore want to check to see if an entry exists already.

Below is the code I have for testing to see if a game exists. I get the correct Log message of "No Games" when there are no games, as well as the correct value for column from getColumnIndex which is proven to me by the log printout telling me that column = 1.

The error message that I receive if I don't catch the exception says "Caused by android.database.CursorIndexOutOfBoundsException: Index -1 requested, with a size of 1

Where is Index -1 being requested if my call to getColumnIndex is returning 1? Code...

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Android :: Unable To Open Database File - Uncaugh Exception Code

Mar 27, 2009

I am having problem using webview in my application. When ever the webviewclient and webview is trying to load, it will throw me and uncaugh exception. Code...

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Android :: Debug Application - Exception Occurred - Android.database.sqlite.SQLiteException

Aug 22, 2010

I am developing an Android application where I get the exception while writing to the database: An exception occurred: android.database.sqlite.SQLiteException

But it doest say anything else. In general I find it very difficult to debug the exceptions.
I am using Eclipse to develop the application. Please help me in solving this issue..

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Android :: Sqlite Exception:java.lang.Illegal Argument Exception Column Id Does Not Exist

Jul 14, 2010

I created a sql lite database with the following columns:
static final String dbName="demoDB";
static final String tableName="Employees";
static final String colID="EmployeeID";
public void onCreate(SQLiteDatabase db) {
// TODO Auto-generated method stub
db.execSQL("CREATE TABLE "+tableName+" ("+colID+" INTEGER PRIMARY KEY AUTOINCREMENT, "+
colName+" TEXT, "+colAge+" Integer);");
I want to select all the records in the database like this and display them in a gridview:SQLiteDatabase db=this.getWritableDatabase();Cursor cur= db.rawQuery("Select "+colName+", "+colAge+" from "+tableName, new String [] {});String [] from=new String []{DatabaseHelper.colName,DatabaseHelper.colAge};
int [] to=new int [] {R.id.colName,R.id.colAge};
SimpleCursorAdapter sca=new SimpleCursorAdapter(this,R.layout.gridrow,c,from,to);
GridView grid=(GridView)findViewById(R.id.grid);
grid.setAdapter(sca);but i receive the following exception:java.lang.IllegalArgumentException: column '_id' does not exist.the db table does not have a column with name '_id'so what is wrong with this code

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Android :: Why Keep Throws Rescources.NotFoundException

Nov 18, 2009

In the following code, these lines:

CODE:.........

The app keep throws the Rescources.NotFoundException. I checked the xml file, all the ids are defined and they are all in the R.java. So I really don't know why the app throw this exception.

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

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Android :: SlidingDrawer Throws RuntimeException In OnMeasure / Set It Up?

Apr 30, 2009

I would like to do some tests on SlidingDrawer however i always found RuntimeException when SlidingDrawer.onMeasure is called i check the code and think the exception is caused by unspecified MeasureSpec

so i would like to ask how to setup the MeasureSpec in SlidingDrawer?

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Android :: GeoCoder.getFromLocationName Throws IO Exeption In Froyo

Aug 26, 2010

I have recently noticed that when Running the function geoCoder.getFromLocationName() on android 2.2 (Froyo) then i Receive a IOExeption (Which does not occur on other SDK versions).

After some reserch i have found suggentions to add the following Permisions:

<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />

However this does not solve the problem, and this appears to be a Android SDK Bug.
Is there a knows solution to this problem?

Here is the stack trace though it is not particularly helpful the inner stack trace is null so not great.

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

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Android :: ADT Calling Code That Doc Specifies Throws An UnsupportedOperationException?

Jul 1, 2010

My XML layout in res/layout/edit.xml: Code...
When I try to switch from "edit.xml" to "Layout", I see this error: java.lang.UnsupportedOperationException: addView(View, LayoutParams) is notsupported in AdapterView I checked the documentation for AdapterView, and this is expected behavior. Why, then, does ADT expect it to work?

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Android :: Why Httpclient.execute - Httppost - A­lways Throws IOException

Dec 10, 2009

Is there someone troubled the same issue.

The code in run.

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

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Android :: Calling Intent.getStringExtra() Throws StackOverflowError Periodically

Jan 25, 2010

I have an android application that I am supporting and after calling one of the activities numerous time, it throws a stackoverflowerror when trying to get the extras from the intent. Here is the the stack trace from when it crashes. Any ideas as to why after calling the activity at least 4 times the next time throws StackOverflowError when getting the extras from the intent?

The code used to build the intent is and contains String, String, boolean, Object:

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

And the code that is throwing the StackOverflowError is:
CODE:.........................

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Android : Starting A New Activity Throws Me Into Debug Mode - Stops App

Jul 22, 2010

I have a listview. Whenever I strike an item of listview the debugger gets opened instead of starting a new activity (i.e. what I want). Code...

P.S. all the xml files are correct.

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Android :: Java.net.HttpURLConnection Throws - Received Authentication Challenge Is Null

Aug 31, 2009

I am using HttpURLConnection to send a GET request to a server. Upon reading the response code, the Android implementation of HttpURLConnection.doRequestInternal() throws an exception:

"java.io.IOException: Received authentication challenge is null"

I don't even get what the error is trying to tell me. I write an OAuth param string to the Authorization header, but this works fine on other occasions. There is nothing peculiar about my request apart from that.

Any idea what this means, what is causing this and how to get around it? This works fine with Sun's Java implementation, so I guess it's a problem with Apache Harmony?

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Android :: Connect To Remote Database Online Database

Nov 8, 2010

ive been looking for a week now i need some help connecting to a remote database...i want my app to get data out of the database and update the database.ive tried this http://www.helloandroid.com/tutorials/connecting-mysql-database but i dont understand it.

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Android :: GetFromLocationName Always Throws IOException First Time - But Is Successful Second Time With Same Input

May 29, 2009

My calls to getFromLocationName() always fail the "first" time I start my app. I catch the IOException which has reason:

Unable to parse response from server

Then I make a second call and it succeeds. Once things are "awake" all future calls to getFromLocationName() succeed, it's just that first one, and there is a ton of latency.

I haven't run this on a device yet, just in the emulator. This seems like a network problem, but it is so reproducible I'm thinking I'm not initializing something properly. I'm using Android SDK 1.1.

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Android :: SSLContext.getInstance - SSL - Throws Java.security.NosuchAlgorithmException - SSLContext SSL Implementation Not Found

Nov 1, 2010

i want to implement a client for https, all in my localhost (in my apache, it is configured to ask authentication), with a resource " https://localhost:443/resources/resource1.xml" the server works fine.

I have a client for desktop, and it works fine, the resources are consumed using httpcomponents-client-4.0.3), i have readed that Android uses that version.

This is the code of my client in Android (practically is the same of desktop mapped to android) ,

in the line of SSLContext sc = SSLContext.getInstance("TSL"); the next exception is thrown :

java.security.NosuchAlgorithmException: SSLContext SSL implementation not found

I have tried with TSL and the exception continue.

Import java.io.IOException;

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

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Android :: Full Android Database Class For Existing SQLite Database?

Aug 23, 2010

I'm trying to deploy an application with an existing SQLite database.I've been reading though the examples that are posted but they are always missing some part of the class. I feel like I'm trying to bake muffins but no one told me to use baking powder.Can someone post a full database helper class for depoying an SQLite database on Android? Edit : Delete old code because it doesn't work.

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Android :: Synchronizing Sqlite Database On Android To A Sybase Database On Server

Apr 12, 2010

I'm currently developing a Field-Service application that stores data in the local sqlite database on an android device. At some point, usually after completing the data collection rounds, the local sqlite db is to be synchronized to a remote sybase db on the server.Any suggestions as to how this could be achieved or engineered as a solution? Or even better, are there alternatives to synchronizing data in such an application?

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Android :: Attempt To Stub Android Activity Class Using PowerMockito Throws RuntimeException - Stub

Sep 17, 2010

I found this example where they used PowerMock and EasyMock to stub/mock the Menu and MenuItem classes for android. I have been trying to do something similar with PowerMock and Mockito with the Activity class.

I understand that a lot of the methods are final and that in the Android.jar they all just throw RuntimeException("Stub!").

I also understand that this test isn't complete but I just wanting to see if it is possible to mock the android Activity class.

But given that PowerMock allows you to mock classes with final methods shouldn't this code work?

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

I would think that the RuntimeException would no longer occur and "Title" would be returned but it still throws the exception.

I have tried all sorts of different things like doReturn("Title").when(mockActivity).getTitle(); and suppress(constructor(Activity.class));

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