Android :: Access To Class Not Allowed / What To Do?

Feb 6, 2009

I get an apk file from somewhere. I tried to install it the emulator successfully. (The emulator is built from the latest code in AOSP which should be cupcake or later). But I can't launch the application from the GUI. It complains "The application xxx has stopped unexpectedly." After checking the logcat, I find the message "access to class not allowed". It seems that that process is not allowed to instantiate the Activity class.

Since I can install the apk successfully, I am curious why I can't launch it as a user.

BTW, I tried two ways to install the app. 1) by copying it to /system/ app and rebuild the system.img 2) by using "adb install". Both getting the same error message.

I tried to extract the AndroidManifest.xml file from the apk. But it seems that the file is scrambled and can't read.

Android :: Access to class not allowed / What to do?


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 :: Application Developers - Allowed To Access System Properties Like Ro.config.sync?

Apr 20, 2009

Google applications do it, and apparently it used to be part of the public API (via android.os.SystemProperties.) How are we supposed to enable/disable sync on the phone? Disabling/enabling roaming is easy, but I'm beating my head against the wall trying to find a non-hack method for disabling auto-sync (much less the granularity that would actually be nice.) Is this intentional by the framework team? Is it a whoopsie that is planned to be changed later?

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Android :: How To Access Intent Value In Another Class?

May 5, 2010

I had write two classes IntentA and IntentB in my application (Both are in same package and both extends Activity class). In IntentA class I had created one button on pressing that button controll is trsnfer to IntentB class. IntentB class also contain Button on pressing that control is transfer to IntentA class.

This work fines. Now I want to set value in IntentA class using putExtra method and access that value in IntentB class How should I do that? I had put value in class IntentA like

Intent i1 = new Intent(this,IntentB.class);
i1.putExtra("Intent Name", "IntentA");
startActivity(i1);

Now I don't know How to access "Intent Name" value in IntentB class.

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Android :: Where To Put Custom Data And Access Them Via R-class Then?

Aug 5, 2010

In a typical Android project you have the res/drawable directories where you can put images but i have some special custom binary files.

where do I usually put them and can i access them via the R-class then?

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Android : Access Context Of A Class Which Is Not An Activity?

Jan 28, 2009

Can anyone tell me how to access context of a class which is not an activity?

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Android :: Core Class Access Resources At The App Layer

Sep 22, 2009

Can a core class such as "AbsListView" access resources, such as xml files, and .png's, in a 3rd party app installed in the normal way (at the app level)?

I realize this is a change in framework code, and that is fine for my purposes. So, for example, if I know that I am going to install an app called "MyApp", could I go into frameworks/base/core/java/android/ widget/AbsListView.java and tell it to use an xml file and .png's that live in that app? Here is the line I would want to modify: setSelector(getResources().getDrawable( com.android.internal.R.drawable.list_selector_background));

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Android :: Access Drawable Resources From A Not Context Class?

Nov 7, 2010

So I'm defining a class that sets a Drawable attribute in an object. The problem is that I can't access the getResource().getDrawable(int resourceId) method unless I have some Context.
So what I did was to send to that class an activity instance (let's call it "act") and then I did:

act.getResources().getDrawable(R.drawable.whellchair)

but, when executing that line it throws a NullPointerException.

When idea how to accomplish this?

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Android :: Way To Access Content Resolver Methodsn From AppWidgetProvider Class?

Dec 31, 2009

Is it possible to access the content resolver methods in a class extending from AppWidgetProvider class? Have been trying to do it with no luck so far.

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Android :: Access To String 'Icon List' Given IconListActivity.class?

Sep 22, 2009

Code...

How do I access to the string 'Icon List' given IconListActivity.class?

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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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Android :: Communicating Between Receiver Class And An Activity Class

Jul 14, 2010

I'm just getting into Android development, and I have a question about communicating between a receiver class and an activity class. I'm very new to JAVA and Android so I hope I don't sound too stupid. I'm developing an application where I intercept an SMS message and then based on various elements of that SMS I might delete it once it's been saved to the inbox. I have a receiver class that intercepts the txt message, and I am also able to delete messages from my inbox with code in the activity class using a button at the moment. The problem I have is communicating between the receiver class and the activity class where the code to delete a message resides. I tried putting that code directly into the receiver class but as I'm sure most of you already know the BroadcastReceiver class doesn't seem to support what I need to delete messages. I've been searching for an answer to this for a while, but haven't been able to find anything. Honestly I'm not sure I know enough about JAVA and Android to even recognize a solution if I saw it.

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Android :: Accessing Class Level Stuff From Inner Class

Jun 27, 2010

What I want to do, is be able to access the object neoApi inside the Neoseeker class, from its inner class RunningTimer. Now, in my code, you can see what I would think to work, but when I run my application, nothing pops up. Nothing inside my TextView, no Toast, nothing at all. How can I remedy this?

package com.neoseeker.android.app;
import java.util.Timer;
import java.util.TimerTask;
import org.json.JSONObject;
import android.app.Activity;
import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;.......................

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Android :: Call Activity Class From Other Java Class?

Oct 8, 2010

I have just started android. I just want to know that how can i call activity class from other java class. i just want to pass class object to activity class.

public class GsonParser extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
MagazineThread thread=new MagazineThread();
thread.start();
}
public GsonParser(JsonMagazineParser Obj)
{

}
}

and i am just doing like from other class. GsonParser obj=new GsonParser(this);passing obj to activity class.how can i achieve that.

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Android :: Applications Not Allowed On New OS

Mar 3, 2010

I just found out from mobile Defense that the Android OS will not let this app or any of these type apps work as intended, i.e. the OS does not allow the GPS or Data or WiFi to be turned on remotely if off. Kind of kills the whole idea of having these apps, anyone know of a non root work around as the cellular south HTC Hero cannot be rooted without major issues?

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Android :: Not Allowed To Upgrade ?

Jul 12, 2010

I have the Pantech Matrix for AT&T, I have had it for a year now and I really want an android phone (HTC Aria.) Because this is before my 2 year contract is up am I not allowed to upgrade, or will I just not be able to recieve the upgrade discounts, which i really don't care about. Thanks in advance and please help me.

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Android :: Are Tethering Apps Allowed

Aug 3, 2010

Could I get in trouble from verizon by using Tethering apps like EasyTether or PDANet? I want to know because I'm going on vacation next week, and being able to tether my laptop would be really cool

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Android :ppp Change - PAP Auth Is Not Allowed

Apr 1, 2009

Currently in .../external/ppp/pppd/auth.c, function check_passwd, somebody write

{ #if 1 return UPAP_AUTHNAK; #else .....

This basically means PAP auth is not allowed on android. Is there any reason behind this? Can I savely change the #if 1 to #if 0?

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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 :: In Java, What Does A Reference To Class.class Do?

Jul 20, 2010

I'm building a small Android application, but this is more of a Java question than an android question. Looking through the tutorials there are lines that look like: startService(new Intent(this, MyService.class));

What exactly does the "MyService.class" field represent? Is that just a reference to the class for a template?

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Android :: Dialog Class With It's View Class?

May 19, 2009

I made a Dialog Class with it's view classI want to pop up the dialog when I got some packets from network. so I made a Thread which parses packets and then I made if clause in Run() method There is no problem with parsing packet but when I enter "if clause" and call showDialog() I got Error message

Is there anyone who knows how to pop up a dialog from different thread?

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Android :: C Development - Virtual Machine - Allowed

Apr 4, 2009

I'm the lead developer of TotalCross, a virtual machine that's just like the one used in Android, and targetted for small devices. Currently, using TotalCross, you write programs completely cross- platform among Palm OS 5, BlackBerry, iPhone, Windows 32, Windows CE (2,3,4,5,6) and Java-enabled platforms.

We plan to port TotalCross to Android, but i'm concerned about the legal way. I'm aware that there may be hack C APIs for Android, but will these APIs allow the users to sell their applications in a legal fashion?

Btw, what is legal and what's not legal in Android? I could easily port our VM to Android if there were a standard C api on it. However, all i see is Java APIs. I could also port TotalCross to run over the Java API, but i'm concerned about speed. I believe our VM is faster than the one in Android (actually, it is a couple times faster than the BlackBerry VM).

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Android :: How Many Data Connection Retries Allowed?

Nov 16, 2010

I have a scenario where I need to control how many retries are allowed per hour for data connection establishment in case of failure? How can this be achieved? There is something like nextReconnectDelay in GsmDataConnectionTracker.java, but can't figure out how to reconfigure this so as to reduce number of reconnection attempts? Also is there any settings so that after n retries of failed 3G data call, Android waits for x hours to initiate next connection.

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Android :: Not Allowed To Start Service Intent In Permissions

Aug 8, 2009

Having trouble with permissions. The error I get is this: Not allowed to start service Intent { comp= {com.commonsware.android.service/ com.commonsware.android.service.WeatherPlusService} } without permission private to package I installed the WeatherPlus app from Mark Murphy's dev book. I'm trying to call his weather service from a different app. I think I have an issue with permissions, not really sure how they work. I thought that you could just make your own, and then check against it. With that in mind, listed below is the client manifest, followed by the service manifest. I called my permission "mypermission". Code...

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Android :: Traveling Citizens Allowed To Develop Applications?

Apr 14, 2010

Will a developer's account be terminated if he travels to an "invalid" country and logs on? I understand that he cannot upload chargable applications from certain countries. But why close his account? Some people are travelling and have half their family in one country and the other half in the USA.

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Android :: Devices Where Install From Unknown Sources Is Not Allowed?

Nov 1, 2010

I would really appreciate if someone could point me to a list of devices/carriers where install from unknown sources is not allowed.

For e.g. I can confirm that HTC Aria (offered by AT&T) does not allow install from sources other than market.

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Android :: Maximum Number Of Threads Allowed Per Application?

Dec 20, 2009

What is the maximum number of threads allowed per application?

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Android : What Maximum Size Allowed For Droid Application?

May 27, 2009

What is the maximum size allowed for an android application?

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Android : What Characters Allowed In File Names On Droid?

Apr 21, 2010

What special characters are allowed for file names on Android?

~!@#$%^&*()_+/.,

Also, can I save file with Unicode name?

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General :: What Sound Files Is Android Allowed To Play

Mar 28, 2012

What sound files is android allowed to play?

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