Android :: Way To Use Java RMI Api In Phone App?
Nov 5, 2010
We are implementing a sever-client architecture and some of the client apps are supposed to run on android OS. The first idea that came to mind was to use Java RMI, but the RMI api is obviously not implemented for android.So
1) Is there a way to use the Java RMI api in an android application? Can I just import it from the standard java library?
2) What are the possible substitutes for RMI which will work for both android and desktop applications?
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May 19, 2010
i have two files
App.java
Gallery.java
App. java contains frontend buttons and functionalities Gallery.java lists the imagesin the sd card. i want to call Gallery.java in click event in app.java
App.java
package gallery.display;
import android.app.Activity;
import android.os.Bundle;
import android.view.View.OnClickListener;
import android.view.View;...........
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Mar 16, 2009
I'm trying to call a java method from javascript using addJavascriptInterface(); but seems does not work, it always display "failure"; java code...
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Aug 8, 2009
Java packages like Java.io, Java.Lang etc used in android, are they different from Java packages in windows ? means specially made for android ?
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Sep 17, 2010
How can I silence the android phone in java? A code sample is VERY helpful.
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Sep 19, 2010
I wish to run a Java app on my HTC wildfire phone, But the phone has no Java, Where can i get mobile-java from?
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Sep 24, 2010
Does someone know how to generate a javadoc for an android project? I found searching the net this info http://www.androidjavadoc.com/?p=63 , but i don't understand where can i find the file "droiddoc.mk": "All javadoc stuff is concentrated in the ROOT/build/core/droiddoc.mk".
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Nov 24, 2010
I am developing android application but i don't know how to integrate two activity files(two java classes) with one-onether like we are doing in java?If u have solution please tell me how to do it?
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Jun 30, 2009
I would like to build an app that OCR a pictures and get text from them. What java library should I use?
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Oct 15, 2009
I know Java apps can be run in Android. But what I want to know is this: I have a perfectly normal Java app and I want to port it to an android platform. What changes would I need to do to my app in terms of GUI and other code to make it usable in Android? I know Android uses XML file to control the look and feel of its app. So would I need to change my GUI completely?I just want to know the general overview of how porting may be done. If anyone could point me to right resources, that would be great. Also, for your info I'm a newbie to developing android app, so please be patient with me.
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Jul 17, 2009
I wanted to check whether there is any JAVA Coding standards in Android platform for performance improvements.
For Example, like an Effective Java code in J2EE environment is to defined the number of elements in the ArrayList constructor rather leaving it blank (new ArrayList(noOfRows)) etc. I definetly suspect these performance tuning tips should be available because of the memory and resource constraints.
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Oct 4, 2009
I'm trying to run J2SE JAVA Application on Android.As you know, the main problem is that J2SE classes such as awt, applet, and etc are not supported in Android. Consequently, this means that I should replace those many java classes with Android classes.So, Do you have some idea or information for replacing J2SE classes with Android classes?
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May 23, 2010
I was wondering what the simplest program for sending an object from my Android phone to my computer wirelessly (via LAN) would be. I have created Java RMI programs with a server and multiple clients, so I have a grasp of the concept. However with android I'm just not sure where to start.
What I am aiming to do is send some sort of information (could simply be text) to my computer and my computer will do an action. I have the GUI interface's and the actions to be carried out all worked out, just the sending of some sort of information is getting me.
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Mar 5, 2010
How to get money from users phone using Java application? So I want to create simple casual game, I want to charge users if they want to pass some extra layers. I want to create an app first of all for android, it'll be opensource. Than to port in on nokia and other Java enabeld devices. Are there any tutorialsmatereals on how to do such thing? May be not on android on something else like Nokia? (BTW I want to transfer money to some banc account on PayPal visa or anething or to my own sim card at least...)
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Oct 20, 2010
I'm getting this crazy error on multiple projects, even when I revert back to prior versions that compiled just fine. Unknown Error - java.lang.NullPointerException Android Packaging Problem Path is blank Location is Unknown. 1 - Project -> Clean -> All 2 - Deleting .metadata folder 3 - reimporting projects into the eclipse 4 - reverting my projects back to prior working versions using git. I just can't get anything to compile now, and I've searched for solutions here and on eclipse forums.
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Feb 11, 2009
I'm having some problems porting a Java application to work in Android platform. I detected an incompatibility problem between java sun and Adroid sdk in java.lang.Class. I oberved that: public Field[] getFields() Returns an array containing Field objects describing all fields which are defined. That's array is sorted as attributes are declared in the main Class in sun jdk. For example, next Class is defined as: public class Example { public boolean stop; public int atr1; public String name; ....
}
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Sep 9, 2010
i am getting this error java.lang.NullPointerException at android.content.ContextWrapper.getPackageManager when am trying to get list of all installed applications on the device. Well let me explain what my program is doing. I have a server that starts when my application is started, and the client pings the server and asks to get a list of installed applications. The Server then asks the getPackageManager() and gets all the installed applications. But the getPackageManager returns the nullpointerexception. The Server is written in a java environment and is started from my android application. Could someone please tell me what am missing and why i am getting this error? hanks alot!!!Please find the code...
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May 31, 2010
I would like to know if is there a way to call android:layout_gravity property from a java method. I didn't found any method in Android documentation to do it. This is the picture of the layout I want to implement: But in my situation, I need to do it through Java code, because I'll implement another layout views dinamically. To avoid merging xml layout with Java code, I would prefer make all layout using Java. Code...
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Apr 21, 2010
I'm a beginner in programming. My experience so far is only in Actionscript 2 and 3. So I have a basic understanding of declaring variables, loops, arrays, if/then, do/while... I'm wanting to move to developing for Android phones so I'm wondering what suggestions people have for where to go next. Should I jump right to Android? Start with a 'beginning Java' approach? Or should I go some other route to beef up my knowledge of OOP concepts before launching into Android? I have my Dev environment set up and completed the Hello Android tutorial and I'm just wondering if I am going to be in over my head quickly?
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Aug 16, 2010
I do an import of the full package name / java file, and if I do a <classname>.<method>, SOMETIMES I can get it to access - other times I get a lot of can't use a static in a non static bunch of talk. I'll admit I'm new to Java, so what do I need to do? Call a class instance first, then call my methods? I'm rather confused by this, as I want to put all of my 'functions' into a FunctionsList.java file, and all of my main Activity (UI) into a MyActivity.java file.
For example:
<MyActivity.java>
import com.example.FunctionsList;
private class MyActivity extends Activity {
FunctionsList.function();
}
9/10 times I get that static/non-static error. If I put all of my functions into MyActivity.java, I have zero problems!
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May 14, 2010
I try to learn java for android devices. i have to create the update function. But still have one question: How?
in class root
public void update(){maindebug("update"); // This is my debug function}
public void run(){ while(isRunning){ // isRunning is a boolean variable
SystemClock.sleep(100);
update();}}
and inside onCreate run(); but it doesnt work.
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Jan 7, 2010
I am a Java professional. Now I'd like to write an application for the Android platform.
What is the initial step I need to take?
How does my Java programming experience help in this case?
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Oct 23, 2009
Is there any way we can rotate a video in Android (specially in Java layer) as it supports ino BREW or WM?
Also, how does the orientation change (portrait/landscape) is different than the video rotation?
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Nov 14, 2010
I have a Motorola Milestone 2.1 update unrooted. I need it to run Java for my stock ticker application. Can I run Java from an unrooted phone? Does rooting the phone allow Java applications to run? I am new to Android.
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Jun 16, 2011
Since new powerfull devices like SGS 2, Optimus 2X.. are finaly out, I was thinking that running an IDE directly on an android phone might be something possible ?
Question is, is there already some kind of IDE apk for our phones ?
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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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Sep 19, 2010
Work staff planner is a programe called Kronos, this requires Java to run fully. Can I get Java on the Desire so that it will allow me to run Kronos? Any thoughts would be appreciated as I need to be able to access this from the phone.
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Feb 5, 2014
I am trying to install the ADT Plugin. It is not working.
Tried:
This is after Hello->Install New Software
Name: ADT Plugin
Location: https:[code]....
How do I install ADT Plugin?I am using Java 6 instead of Java 7 per recommendation of posts elsewhere. It didn't work.
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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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Sep 29, 2009
I was going through the code for Activity.java and ApplicationContext.
Both these classes define many functions of Context Interface. Take for example startActivity.java
Activity Class has its own implementation of startActivity ApplicationContext class also has an implemenetaion of startActivity.
Now there are 2 observations...
CODE:..........
Questions: 1. Who uses ApplicationContext class? 2. Does Activity class ever deal with ApplicationContext class (as given in the javadoc comments of ApplicationContext.java).
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