Android :: Application Package 1.6 - Class Rightaway

May 4, 2010

I have developed an application which has several packages within it's project. A class in one of those packages is called right away in the first line of code, which throws the dreaded java.lang.NoClassDefFoundError error. I don't get it, the package simply is within the project, and it works fine on my Android 1.6 device, but won't work with my 1.5 device. I do have to say that the project was originally set for 1.6, but then I changed the within the manifest from 4 to 3. Is that bad practice? Or maybe it has nothing to do with the platform version? Also I do get these lines as wel from the DDMS :

05-04 17:24:59.921: WARN/dalvikvm(2041): VFY: unable to resolve static field 2 (MANUFACTURER) in Landroid/os/Build;
05-04 17:24:59.921: WARN/dalvikvm(2041): VFY: rejecting opcode 0x62 at 0x0034
05-04 17:24:59.921: WARN/dalvikvm(2041): VFY: rejected ***/android/managementModule/Management;.getDeviceSpecifics ()V
05-04 17:24:59.921: WARN/dalvikvm(2041): Verifier rejected class ***/android/managementModule/Management;......

Android :: application package 1.6 - class rightaway


Android :: How To Run Class In Background Among Package Of Class?

Apr 23, 2010

In my app in one package there are some classes. from those classes i want to run one class that is the Gps functionality class. i want to run that class in background. how i do it, i don't know. i am not able to make it solve from any document. if anybody knows the way to solve it please me by run a "hello world" app in the background. i am not able to solve this problem by going through document.

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Android :: Way To Package A Class For Use In Another App?

Jun 2, 2010

I've written an Android app wich various abstract classes that perform useful functions. These functions could be leveraged in other apps. I want to share a class module with another programmer, but I don't want to share the source code. I would like to share a .class file but I'm not sure how to do the following:
Compile an Android .java file into .class What does the receiver of the .class file have to do to use that .class in their project? (using Eclipse environment)

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Android :: How To Get Package / Class Name By Code?

Nov 15, 2009

How can I use sdk to get the package/class name of a specific apk file, eg: I have a test.apk, and I want to know the package name and class name by API when I write a android program.

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Android :: How To Get Different Package Name For Generated R.Java Class?

Jan 24, 2009

Apt while generating the resources, is it possible to provide a different package name for the generated R.java class. Currently it seems to use the same package name as the one in manfifest defination of AndroidManifest.xml <manifest xmlns:android="http://schemas.android.com/apk/res/android"package="com.tejasoft.dialer.mobile.android"> Also, is there a way to give custom class name instead of default R name say Resources.

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Android :: Way To Call A Method Of Class Kept Under Other Package?

Oct 5, 2010

I am a beginner in Android Developing. Can any1 please guide me how to call a Method of a class kept under other package. Like class A in Package 1 calls a method in Class B of Package 2 which returns An array or object. Do i have to create an Intent for that? actually i have to gather all information in 1 class from different classes kept under different packages.

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Android :: Access Application Class From Class Other Then Activity

Sep 8, 2010

I'm new to Java and android development. In my application I need data which is accessible for a few activities. I've read that a good solution is to use Application class for this. So I use it like this:

public class MyApplication extends Application {
private String str;
public String getStr(){
return str;
}
public void setStr(String s){
str = s;
}
}

and I can access this variable from activity like this:........................................

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Android :: Get File Within Package - Application

Oct 14, 2009

I'm am creating an Android application, but in order to have one of the functionalities working I need to read a predefined xml file whilst only knowing its name, not the R.id..

In normal Java I know I can use

getClass().getClassLoader().getResource(xmlName)

But using the limited Android SDK thats not working, any knows how to solve this?

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Android :: Installing Package Just Like Market Application?

Aug 12, 2010

How to install package without asking user just like market app?

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Android :: Application Shutdown During Package Reinstall

Aug 21, 2009

I'm working on the upgrade process for an Android app and am having a hard time ensuring a graceful shutdown of the old version. Can someone explain how the old version of the app is killed and if there is anything we can do to hook into the process? In more detail:

We notice that a new version of our app is available and launch a new activity with Intent.ACTION_VIEW pointing to the new apk file (or to the marketplace, once our app is there). However, the user has 2 chances to abort the install (once at the warning about reinstalling the app, and the second when warned about the permissions our app needs). My understanding is that I can't use startActivityForResult() with ACTION_VIEW, so I can't find out if the Action is aborted or not. So we can't tell if/when the install has been started.

We'd like to ensure that our app shuts down cleanly since we use a lot of native code and threads. We could kill our app proactively, as soon as we launch the ACTION_VIEW activity, but then we're left in a bad state if the user aborts. We could wait for the installer to remove our files, prior to installing the new version, but that's a hack. Is there any clean way to do this? Our main window is never seeing an onDestroy(), btw.

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Android :: Start Another Application From Another Package With An Intent

May 6, 2010

I know how to update my own programs, and I know how to open programs using the a predefined Uri (for sms or email for example)

I need to know how I can create an Intent to open MyTracks or any other application that I don't know what intents they listen to.

I got this info from DDMS, but I havn't been succesful in turning this to an Intent I can use. This is taken from when opening MyTracks manually.

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

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Android : Start Application Knowing Package Name?

Aug 6, 2010

Can someone tell me how to start new application knowing only its package name? I do not have information about what activity is the main one.

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Android :: Best Mobile Application Analytics Package?

Aug 4, 2009

I'm developing on Android at the moment and want to know the best mobile app analytics for android and iPhone. I only need usage stats at the moment.

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Android :: Browse Deeper Into /data/package/application

Apr 17, 2009

My app is creating a directory by using File thisDir = getDir("mycustomname", Context.MODE_WORLD_WRITEABLE); It is stored at /data/data/package/app_mycustomname/. I can browse that directory with DDMS or with 'adb shell', of course, it is empty. My App then creates some subdirectories there, and those have subdirectories too, and so on, and creates files in several of those. My app can read all those dirs and files, too. Sometimes I have to take a look at this directory tree, but I cannot browse deep into that tree, neither using DDMS (both inside Eclipse and standalone) nor using the shell. I can see that there is a directory called / data / data / package / app_mycustomname / mysubdirectory and I can even 'cd' into this directory. But when I do a 'ls' there, the directory is reported to be empty, though I'm sure there must be something inside. app_mycoustomname has the permissions drwxrwx-wx app_mycoustomname/mysubdirectory has the permissions drwxrwxrwx. I have the same issue on the emulator and on the ADP1, both running a 1.1 firmware.

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Android :: Export Signed Application Package Not Working

May 23, 2010

I am using Windows XP and Eclipse to develop. I updated everything today, the new sdk, the new adt etc. After that, when I tried to "export signed application package", nothing happened. If I click "export unsigned application package", a dialog box showed up. Anything i missed? How can I fix this problem? - You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to android-developers@google groups.com To unsubscribe from this group, send email to android-developers +unsubscribe@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en

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Android :: Calculate Size Of An Installed Droid Application / Package?

Oct 31, 2010

I'm looking for a way to calculate the size of an installed Android application/package. I can't find this information in neither ApplicationInfo nor PackageInfo objects. From the ApplicationInfo I can get the path for the data and the app itself. Data is a directory structure, but when attempting to read it recursivly I get a nullpointer. Is there any better way of doing it? Any sample code?

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Android :: 'Application Class Stick Around

Aug 12, 2010

In my application, I use a subclass of the Application object to store some references to complex objects I need to access from all of my activities. When my app starts, the startup activity checks one of these references, in this case a Location, and if it is null, it starts the LocationListeners which populate the reference for further use.If I back out of the app to the launcher screen, and re-launch it, the Application object still has the reference from the previous use a few moments prior. This is fine, and is what I'd expect, but I'm curious how long the Application object is kept around once I've back'ed out of my application? (onDestroy() has been called on all activities, nothing in the stack.)When is it finally killed? I know it does finally get killed as when I've not used the app in a while, it will search for location on startup (indicating the aforementioned null reference.)

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Android :: Application Class Being Called Twice

Oct 16, 2010

In my Android application, I overload the Application class, and I updated the tag in my manifest. This application also creates an Android Service. I have put some logs in the onCreate of my Application class, and I see it being called twice. The first time is when my application gets launched (this is expected) and then, it's usually right after the Service is being created. the log also shows that a second instance of the Application is being created. (I print the "this" value and they are different). I thought the Application would be created as a singleton. Is that happening because I create a Service?

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Android :: Package Manager Get Size Of An Installed Package?

Feb 12, 2009

i work on custom Application Manager and try to get the disk usage of installed package. So PackageManager.getpackageSizeInfo was removed from SDK on 0.9->1.0 update android.content.pm. PackageStats(String pkgName)(cacheSize, codeSize, dataSize) returns always "0" Size of phys. file (java.io.File) in "/data/app" seems wrong/not completely. Has anybody any solution to get the total disc space used by an installed package?

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Android :: Register Application Class In Manifest?

May 28, 2010

I have one Application class to keep the global state of my application. But I'm unable to register it in Manifest file? Any idea how to do this?

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Android :: Extending Application Class And Broadcast Receivers

Nov 1, 2010

In a book I read, the author suggests to extend the application class in order to have a place to be used as a singleton. In this way, it is easy to make some initialization stuff in it onCreate().Now my question: if my application has also some broadcast receivers declared in the manifest, and the application was not started explicitly, or it was but then the os reclaimed it resources back, what will be happening if the broadcast receiver is triggered? Will the onCreate of the application class be called first?

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Android :: Violation Of Core Library Class Not Existing In Application

Oct 29, 2009

After getting comfy with the Android 2.0 environment and emulator (for the most part), I took the next step to bind <myapp> against the latest Android 2.0 jars: android.jar and maps.jar. The existing code (working in Android 1.6) did not need any changes to compile, but the app doesn't build due to a weird error message that prevents the build. See snippet below, drawn from the Eclipse Console. I have no aspirations to run up against any core library classes, and I am not aware I do. In other words, I am not implementing SealedObject (or any other core class that I am aware of) that would run up against Dalvik. Not in the javax, java or any other namespace. Anybody got any pointers what's going on here?......

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Android :: How To Use Java Runtime Class For Starting Another Application From Mine

Mar 12, 2010

Basically i want to start Notepad application in android from my application , can i do this in android using runtime.exec() method of RuntimeClasss and assign it to a process and kill the process later.

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Android :: Create Custom Global Methods In My Application Class?

Aug 17, 2010

I currently have an app that has many activities and needs to have a way of maintaining state between these activities.

I use the Application class to do this, declaring my global variables and using getters and setters to interact with my activities.

I was hoping to place a few custom methods in there, so that when I want to do a common task like, for instance, display an error message, I can declare the method in my application class and call it from any activity that uses it

EscarApplication application = (EscarApplication) this.getApplication();

EscarApplication being the name of my application class above.

I have tried to include this method in my application class:

CODE:.....

In the hope that I can call this method from activity without having to redeclare it, but when I call it using something like below I get an null pointer exception:

Visit.this.application.showError("Update error", "An error has occurred while trying to communicate with the server");

Visit being the name of my current activity above.

Should this work, or can I only use getters and setters to change global vars in an Application Class.

EDIT Stack Trace:

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

The dialog is declared as such in the application class:AlertDialog alertDialog;

Created in that same class:alertDialog = new AlertDialog.Builder(this).create();

And the method to call it in that class is as follows:

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

And finally, it is called from an activity like so:

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

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Sony Ericsson Xperia X10 :: MMS Application - Not Count As Part Of Unlimited Package

Dec 1, 2010

I have droidstats app. But i am now looking for a MMS only app. Reason is MMS messages do not count as part of my unlimited sms package, were as before it use deduct 4 sms per mms.

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Android :: Generic Task Manager Class For Application / No Dismiss Dialog

Nov 15, 2010

I have a class which extends AsyncTask, which is intended to serve as a generic task manager class for my application. The strange behavior is that the progress dialog shows up, but is never dismissed. I am sure that onPostExecute() gets called for every task instance, as any Log.d("","") statements fire if placed in here, even the Toast messages show up from within this method, but I am not able to dismiss the static dialog. I understand that AsyncTask(s) have access to UI thread at only 2 places [onPreExecute() and onPostExecute()], so I think trying to dismiss the dialog in runOnUiThread() is unnecessary. All calls to executeTask() are made from different onCreate() methods of different activities that need to fetch some data over network before populating some of their UI elements, and I always pass the current activity's context to the tasks. As I do not switch activities until after the related tasks are completed, I believe the activity context objects are still valid (am I wrong to have assumed this???) I have never found any of them to be null while debugging.

Could this be a timing issue? I have also observed that most of the times DDMS shows all tasks get completed before the activity is displayed. If I use new Handler().postDelayed(runnable_which_calls_these_tasks,10); in the onCreate(), and add delaying code in foo_X(), the activities are displayed without any delay, but the dialog will just not dismiss(). I have read through quite a number of articles on this issue but am still not able to figure out exactly where am I going wrong. I do not want to define each task as private inner class Task1 extends AsyncTask<> in all of my activity classes and I would not want to (unless this is the only solution) load my application object with all activity references either as mentioned in this discussion: Is AsyncTask really massively flawed or am I just missing something?. I have spent a week on this and am absolutely clueless :( It would be great if someone can guide me, and let me know what am I missing. Following is the class definition: [I've removed some irrelevant application specific code for clarity]

public class NetworkTask extends AsyncTask<Void, Integer, Boolean> {
private Context UIcontext;
private int operationType;
private static ProgressDialog dialog;
private static int taskCount;
private NetworkTask(int operationType Context context){ this.UIcontext = context;
this.operationType = operationType;
if (taskCount++ == 0) dialog = ProgressDialog.show(context,"","Loading...");
}

public static Boolean executeTask(int operationType, Context context) { return new NetworkTask(operationType, context).execute().get();
} @Override protected void onPreExecute(){ super.onPreExecute();
if (taskCount == 1) dialog.show();
} @Override protected Boolean doInBackground(Void... arg0) { switch(operationType){ case TYPE_1: foo1();
break; case TYPE_2: foo2(); break;
case TYPE_3 foo3(); break; case TYPE_4: foo4(); break;
} @Override protected void onPostExecute(Boolean result) { super.onPostExecute(result);
taskCount--;
if (dialog.isShowing() && taskCount == 0){ dialog.dismiss();
}else { Toast.makeText(UIcontext, "Task#"+ operationType+", m done, but there are "+taskCount+" more", 5).show();
} } }

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Android :: Use Java.awt.image Package In Android Application

Aug 7, 2010

I have to use java.awt.image package for BufferedImage class in my android app But I am not able to do this and does anyone knows that how to do this in android or What's the equivalent class of java.awt.Image in Android?

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Android :: All .class Files In My Java Application Loaded Into Memory After Appliaction Start?

Feb 3, 2010

I am making an app for Android, in my Activity I need to load an array of about 10000 strings. Loading it from database was slow, so I decided to put it directly into one .java file (as a private field). I have about 20 of these classes containing string arrays and my question is, are all the classes loaded into memory after my application is started? If so the Activity in which I need these strings would be loaded quickly, but the application as a whole would have a slow start...

Is there other way, how to very quickly load an 10000 string array from a file?

UPDATE:
Why I need these strings? My Android app allows you to find "journeys" in Prague's public transit - you choose departure stop, arrival stop and it finds your journey (have a look here). My app has a suggestions feature - you enter leter "c" as your departure stop and a suggestions ListView appears with stops starting with "c". For these suggestions I need the strings. Fetching the suggestions from database is slow (about 400ms on G1).

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Android :: Can't Access Package Private Fields In Android.widget Package?

Oct 7, 2010

I'm attempting to override an Android View class to tweak the functionality just slightly. But I need to modify a field that does not have a setter method. I've placed the subclass in a package called android.widget. Why can't I access any of the package-private member fields? I notice that the compiler says they "cannot be resolved," rather than not being accessible. Does this have something to do with how Android.jar is built?

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Android :: Creating A New Class Using Eclipse New Java Class Dialog Box

Jul 7, 2010

I'm creating a new class, using eclipse "New Java Class" dialog box. I can write the superclass I want (I can't find using "browse" button), but I can't write or select an interface to implement. I click "add" but ther is nothing to select. What I'm doing wrong?

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