I am trying to create a file ,if it doesnot exist and tried to write some data to it. The same program I did in java, it was running fine.But when I try to do the same thing in Android I am getting NullPointerException at the place where I am trying to write data to file. And also, I did not find any new file in the current directory .
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There does not seem to be any Android manifest permission that needs to be set for file io. Code...
View 2 Replies View RelatedI'm writing an android program in which I have an activity that uses tabs.Anybody have any idea how I can get this content into a tab without crashing my application? My actual program is more complex and has more than one tab but I simplified it down to this in an attempt to find out why it's crashing but it still crashes and I don't know why.If I don't use LayoutInflator my program doesn't crash but I don't get any content either, just tabs.
View 1 Replies View RelatedI'm installing the Android SDK on Mac OS X. Following the instructions on the Android Development site, I've downloaded the SDK and modified my .bash_profile to include the path. The next step is to use the Android SDK and AVD Manager to actually download the platforms.
However, when I use the Manager to install the platforms, I get the following error in the Terminal. I've looked around for similar problems in the Eclipse and Android forums and haven't found anything yet. Is something else damaged in the environment and needs to be repaired? Any recommendations on where I should look? Code...
I am receiving Text messages from another application sent through broadcast intent. I am displaying these messages to my application's GUI. In my application I had defined <broadcast receiver> in my manifest.xml
<receiver android:name=".HHBroadcastReceiver">
<intent-filter>
<action android:name="android.demo.test"/>
</intent-filter>
</receiver>
And also define the logic in the Broadcast receiver class
public class HHBroadcastReceiver extends BroadcastReceiver { @Override public void onReceive(Context context, Intent intent) { //TODO: React to the Intent received.
String msg_receive = intent.getStringExtra("message1");
AssetTest.hh_text.append("
"+msg_receive); } }
I need to disply current Position latitude and logintude...I tried but it will show Null pointer exception.. here with i attached my code...
I run this application on android emulator
CODE:...............
I cant figure out why my program is showing null pointer exception. Plz help me.I have declared the getter and setter methods in a seperate claa named SongsList. Plz help me determine the problem...
View 1 Replies View RelatedI'm trying to get a location from lat /lon values with the getFromLocation function:
adresses = geocoder.getFromLocation(lat, lon, 1); // Search addresses
The function should return a empty List, if it don't find an address, but it throws the NullPointerException. What can/must I do to fix it?
I've had fine luck using SQLite with straight, direct SQL in Android, but this is the first time I'm wrapping a DB in a ContentProvider. I keep getting a null pointer exception when calling getWritableDatabase() or getReadableDatabase().
Is this just a stupid mistake I've made with initializations in my code or is there a bigger issue?
CODE:.........
But here's LogCat showing the exception:
When my app loads, I fill my android.app.Application with some data. The app runs fine as I use it and all the data is available. However, when I leave the app over night and look at it again the next day, I receive NullPointerExceptions when attempting to use that same data. I do not believe Application objects get garbage collected, so I have no idea what is going on? I also lose static objects in classes used by my Activity classes. I am on Froyo 2.2 on a Google Nexus One. Looks like someone else had a similiar issue: http://groups.google.com/group/android-developers/browse_thread/threa...
View 6 Replies View RelatedWhile building the android app using ant am getting the following exception. Couldn't figure out why these exception are thrown! Code...
View 3 Replies View RelatedI have been following the Android getting started docs and when I try to run the project I get: !MESSAGE An internal error occurred during: "Launching HelloAndroid". Code...
View 2 Replies View RelatedI have the following very simple class which looks for the last known user coordinates and then prints one of them. But I am getting loc as null variable. That is the application is not reading the data into the loc variable. Still it doesn't fire any toast command in the function. Code...
View 4 Replies View RelatedMy web service should be returning an integer, but every time i run the code i get the NullPointerException error. i think my url string may be the problem, but i've tried using my ip with no luck. Code...
View 1 Replies View RelatedI 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.
I have built an activity to handle gestures in my Android game and want it to respond to a gesture anywhere on the screen but I am getting this error on the Log:
CODE:...............
I understand I need to allocate a view to the activity and as you will see in my XML, a view called gestures will serve this purpose but I keep getting Inflation errors when trying to inflate the view. Before when this happened to me it was a misspelling of the view name in the XML but that's not it this time I don't think.
How would I properly assign the 'gesture' view to this activity to prevent the errors?
I have defined my activity in my code like this:
CODE:...............
I have created the activity in the main thread in it's doStart() method by saying:
CODE:............
And my XML layout looks like this:
CODE:...................
I'm having trouble with a spiner throwing a nullPointerExpression I'm sure I'm missing something stupid? Code...
View 2 Replies View RelatedWe have a android application that works fine up to android 2.1, but when we try to release it for android 2.2 we get a nullpointerexception. This happens when we're parsing a xml, on the following line of code...
View 2 Replies View RelatedI am new to Android development since my EVO purchase a few months ago. Anyway, I am developing my first Android app using Eclipse and Android SDK emulator. I am trying to do a simple HTTP POST. My real code has my login information hard coded in so I replaced it with test information and I changed the url as well to simply POST to google.com. I am getting a NullPointerException when trying to view the HTTP POST request response. I have added the internet permissions to my manifest xml file as well. Code...
View 1 Replies View RelatedI'm working in with the Android SDK 2.0 / Galileo / ADT 0.9.4 (latest to date). Against Android 1.5 API layer. If I go to the layout editor and add an AutoCompleteTextView the screen immediately gives me a NullPointerException. Does anyone have a documented workaround for this problem? I can't seem to find one. This is obviously a bug in the Android SDK. (It's been filed anyway.)
View 1 Replies View RelatedI am creating an application which tracks the users location using GPS, stores the longitude and latitude in a database using a content provider then output the first long and lat to a mapview. I am able to create the cursor using this line of code...
View 1 Replies View RelatedI'm just getting started with Android app development on a Mac, and I keep getting a NullPointerException everytime I go into Strings.xml to edit it. Here's the steps I followed - The project compiles and runs fine, but if I add even a single character to Strings.xml, a popup comes up that says - "An error has occured. Please see the log for details. An error has occured. Please see the log for details." When I click details, all I see is - "An error has occurred. See error log for more details. java.lang.NullPointerException" Anything I'm missing completely? Code...
View 2 Replies View RelatedIn my main activity, I have the following code that calls my FileBrowser activity: What's wrong? Can I not use putExtra with startActivityForResult? Can putExtra only be used with startActivity? Code...
View 1 Replies View RelatedMy app crashes with a null pointer exception on the code below. I have an xml preference file under res/xml/defaults.xml
public class Preference extends Activity {
public Preference() {
} public String getPreference(String key)
{ //it still crashes here
SharedPreferences settings = PreferenceManager.getDefaultSharedPreferences(this.getApplicationContext());
String result = settings.getString(key, null); return result;
} }
I'm currently developing an application for Android which needs to use a custom made Tabs. I have encountered two problems: I'm getting this exception when i want to switch from a text mode to wyswig mode in Eclipse. This is the actual xml code that gives me that error...
View 2 Replies View RelatedI'm trying to bring up the standard window for Bluetooth Settings (with Device name, Discoverability etc). However, general approach with startActivity(intent) ends with NullPointerException pointing to BluetoothSettings.java onCreate:135. Checking with the Android code, I've found that at line 135 they get some extras from the intent. So I prepare the same extras (names I've found in android core BluetoothDevicePicker interface) and issue it -- the same effect with NullPointerException. Might be the wrongs names of the extras I prepare? So is there a way I can see those extras (with names especially) from the intent the system itself submits when I open Bluetooth Settings manually acting like a user. Code...
View 1 Replies View RelatedI configured my android project to use ant. When building using the keyword release it fails with this message: It looks like there is some problem with ApkBuilderTask.java but I don't know how/where to get the source of ApkBuilderTask.java. Has anyone run into this problem and found a solution? I'm using android SDK tools revision 7 if that helps. Note: Running "ant debug" or "ant release" all comes out to the same result. Code...
View 2 Replies View RelatedI am trying to do what I think is a fairly simple task to authenticate a user on my server. I am using AsyncTask as a private subclass of my Activity, however when I try to populate the user object after authenticating it keeps setting it to null. Is there something strange in how the onPostExecute() method is called that is causing this? I originally had the AsyncTask as its own class but ran into the same problem, so I am try to solve this using a private subclass.
View 2 Replies View Relatedis there a way in android to get the call stack when an unhandled exception occurs? or better yet, to trap an unhandled exception and do something when it occurs.
View 3 Replies View RelatedAs a newbie, I have been reading posts in learning how to do different functions.Using the Hello World example, I added a textview object to this application but the results come back as false on the screen.
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