Android :: Error - Unable To Fnd Class R.java No Such File Or Dir

Oct 18, 2010

I keep getting this when trying to start a new project

ERROR: Unable to open class file C:UsersLeviDesktopAndroidworkspaceDroid1gencomandroidbookdroid1R.java: No such file or directory

I tried changing preferences to alter build path to project, but it still wouldnt work,,,

Is subfolder on desktop a bad place to install Eclipse?

Android :: Error - Unable to fnd class R.java No such file or dir


Android :: Error: Unable To Open Class File R.java / How To Fix It

Sep 26, 2010

Did a fresh install of Eclipse, JDK and android-sdk.

I am currently receiving this error when creating a new project

[2010-09-26 16:07:56 - Test] ERROR: Unable to open class file C:workspaceTestgencomexample estR.java: No such file or directory

What's the reason for this and how I fix it?

Eclipse Helios 32 bit
java version "1.6.0_21"
Android sdk API 8

P.S. Im new to Android development.

EDIT: I tried most of you solutions, but nothing worked. So I started using my frineds install of Eclipse Ganymeade.

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Android :: Call Java Class Methods To Other Java Class File On Android

Nov 3, 2010

i hav two classes...both classes are extends activity.. i need call other class method on main class on android development..its urgent..please.. i done something like subclass sub = new subclass()...its not work..
In 1st activity class

package org.me.intent_testing;
import android.app.Activity; import android.os.Bundle; import android.widget.; import android.view.; import android.content.Intent;

/** * * @author pavankumar */

public class FirstActivity extends Activity {................

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Android :: Call Java File On Click In Another Java Class?

May 19, 2010

i have two files

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Gallery.java

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App.java
package gallery.display;
import android.app.Activity;
import android.os.Bundle;
import android.view.View.OnClickListener;
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Android :: Does The Dalvik File Format - .dx - Support More Instructions Than Java .class File

Apr 17, 2010

Is there anything the Dalvik VM supports (in terms of bytecode) which is not used currently because the .class files don't have it?

As an example, if people would write their own Source-to-DX converter for their functional language XYZ, would they be able to implement e. g. full tail calls although the .class file does support tail calls only under certain circumstances?

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Android :: Class Java.awt.Font Error

Feb 25, 2010

When I try to edit project/res/main.xml using android layout editor in eclipse I get the error "Could not initialize class java.awt.font".

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Android :: Service Unable To Call Java Class Methods / Way To Fix?

Jun 22, 2010

Hi, custom classes which are part of a framework, so nothing graphical. One of those (singleton) classes is a Logging class which send logs to my server. I noticed that even though I can call the classes methods in my service it actually won't be logging anything... In my specific example it's osmething like : Logger.getInstance().log("Whatever I want to Log"); Obviously the getInstance is a static method so it can be accessed from anywhere within my project right away.. I was wondering though why this method for example isn't getting called ? Also how do I debug a Service ? Btw I am using of IPC from one of my Activities which gets bound to the service and can start/stop the music for example...

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Android :: Java Unable To Find Class At Runtime From JAR I Created

Nov 19, 2010

I am working through a facebook-sdk example and trying to utilize the collection of classes as provided as a .JAR. I am relatively new to java and eclipse so I expect I am making some obvious blunder.

The issue is that everything seems to compile fine, but when I run the project (using the android emulator) dalvik vm is unable to find the first class I reference from this facebook sdk. ( com/facebook/android/Facebook.class )

As an aside, if I copy the source directly into my project as an additional package everything works fine.

Step 1: I exported the com_facebook_android project as a .JAR file. ( right click project, export, java / jar file ) I choose c:datajagjar as my location to save facebooksdk.jar.

Step 2: I hit properties on the project HelloGoogleMaps, Selected Java Build Path, Libraries, Add External JARS... I the directly selected the c:datajagjarfacebooksdk.jar file.

At this point my project seems to be building just fine ( no errors ).

Step 3: Debug the project and receive the error:

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

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Android :: Possible To Put Each Class Into It's Own Java File In Eclispe?

Apr 20, 2010

I'm coming over from C# where I can make a namespace and then have each class placed into its own .cs file if I want, but in all of the examples I've seen for android all of the methods and classes are all in one big java file.

Is it possible to put my classes in to their own java files and then import those classes into a main program java file as needed like I do in C#?

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Android : Program Crashes When I Call A Class From Another Java File

Oct 26, 2010

I am new at android development and java programming, but I have decided to program a drinking game app in android. This app basically simulates a deck a cards, a player clicks a button to draw a card then based on the card thats drawn the player plays a drinking game (ie takes 1 drink, takes 2 drinks ect).

I have the main program in one java file, and the code that shuffles the card deck and puts the card sequence in an array in other java file. My problem is that whenever a class from the other java file (classicMode.java) is called from the main program (fubar.java), my android program crashes and gives the error : "The application Drinking Game - FUBAR (process com.games.dg) has stopped unexpectedly. Please try again". Code...

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Android :: Thread Class In SDK LunarLander And JetBoy Examples Not Each In Separate Java File / Why Is So?

Sep 9, 2010

Is there a reason why the Thread class in the SDK LunarLander and JetBoy examples are not each in a separate java file, rather than being inside the View file?

It would make things a bit clearer, IMHO. Am I missing something?

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Android :: Make Adapter Class To Choose .Java File Depending On Firmware Version

Sep 1, 2010

What I did was create two .java files. One that can compile and run on a 1.5 phone (SDK3) and then one that works on 2.0(SDK5) So for this example i'll call the 1.5 file ExampleOld and the new one Example. I was wondering if i just made activity like this if it would work sort of like a "portal" and pick the activity to load depending on the SDK so there is no crash or compile errors. Are there any changes I should make to my code? Maybe anyone out there that's had to do this before.

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

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Android : Class Generator For Data Classes Used In Java / Droid From Existing Wsdl File?

Apr 3, 2010

Is there any class generators to process web services in Android/Java? I may have to write my own to generate classes against WSDL but I'm trying not to. Also is there one for REST services as well?

If not providing me with discovery service suggestions like disco/wsdl are good enough.

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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 :: 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();
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}
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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 :: 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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Feb 11, 2009

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Aug 15, 2010

I want to implement my own Tokenizer base on the file
"MultiAutoCompleteTextView.java",

but I encounter an error "com.android.internal.R cannot be resolved" when I try to

import "MultiAutoCompleteTextView.java" to my project.

code:.................

I haven't research any solutions to resolve this problem.How to correct "com.android.internal.R.attr.autoCompleteTextViewStyle" my own attr?

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Android :: Android Manifest File ERROR And Unable To See It

Jun 19, 2009

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

The above code is my manifest for my project i get the error "Tag <activity> missing required attribute name." on lines 7, 15 and 16. ive been trying to renew the file but i get the same errors i am currently using SDK 1.5 mn3 maybe.

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Android :: Call Java Methods From One Java Class To Another In Android?

Nov 3, 2010

i hav two classes...both classes are extends activity.. i need call other class method on main class on android development..its urgent..please.. i done something like subclass sub = new subclass()...its not work..

package org.me.intent_testing;
import android.app.Activity;
import android.os.Bundle;
import android.widget.;
import android.view.;
import android.content.Intent;...........

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HTC Droid Eris :: Sms Error Cause Code 34 Error Class 2

Feb 1, 2010

Everytime i go to send a message it says sms error cause code 34 error class 2. i did a hard reset and it is still happening?

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Android :: Util Class In Java

Sep 3, 2010

I want to know about the util Class used in Java. I am currently working on one Application in Android where I need to used a class from one file to another different file. I was told to import it like "import com.android.utli.(ClassName)" here the "com.android.util" is a package name.

Can I use thast class in my another file simply by importing the package along with the Class Name?

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Android :: Can Run Java Class Files

Jul 9, 2009

There are a lot of language which compiles into Java class files when can run on JVM (e.g. JRuby, Scala, Rhino). Can you please tell me if I can take those class files (compiles by the JRuby/Scala/Rhion compiler) and run it on Android platform?

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Android :: Java URL Class Can't Use HTTPS In App / Way To Do

Jan 11, 2010

I want to use HTTPS in my application. The Java URL class does not seem to do the job.

Does anyone have any pointers?

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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 :: How Do Import A Java Point Class

Sep 17, 2009

I am writing an android game. I need a Point class that stores x and y coordinates. I have found a class called java.awt.Point. Which looks like what I need. I have created an interface for java.awt.Point and put import java.awt.Point in my code. But when I do Point pos = new Point.

I get an error: cannot instantiate Point. Also if I do pos. I don't get x or y member variables. I could code my own Point class but I need to learn how to import stuff.

If I delete the interface for Point I get an error on import java.awt.Point. It says the import cannot be resolved.

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Android :: Dex To Convert To Java Class Format

Aug 16, 2010

Is there any tool available to convert android dex file format to java class format? I've looked at dex2jar, but it looked very early in development. I'd like something that is stable enought for use.

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Android :: Call A Value Entered In A UI To Your Java Class?

Jan 23, 2010

Making a simple app for my android.

in my xml interface there is a text box in which the user will input a number (for example: 10). the id of this text box is "input1"

how do I call the value of input1 in Java and then perform a calculation on it?

For example...

suppose input1 = x

x + 5 or x*2

and for that matter, how do I have the resulting value appear as constantly updated text output in a specified place on the UI?

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Android : How To Convert Class File To Dex File

Nov 12, 2010

How to convert class file to dex file in android? Is there any way?

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Android :: Run In Background - Service Vs. Standard Java Class

Jun 18, 2010

In Android, if I want to do some background work, what is the difference between

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