JNI problem : from c Languege call Java. i think from c Language call Java, but that CallIntMethod() return value is not equals getIpv6() -> 99, CallIntMethod() its always return strange value is [-1091242504] or [11212] . additional i already solve [Method not found: Code...
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I'm trying to call a java method from javascript using addJavascriptInterface(); but seems does not work, it always display "failure"; java code...
View 2 Replies View RelatedI have following problem: I have my "MainActivity". In this Activity, i start a thread (SaxParser in another "normal" java file). Now I want to call a method from the MainActivity out of the normal java file? I have read something of an Application object, but i only find things, where i have to create a new Intent. Is it possible to use the application object in the other "normal" java file like that: Code...
View 5 Replies View RelatedI 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...
View 2 Replies View RelatedBasically I'm calling the onDraw method like so...
code:...................
You see I'm drawing it on top of a Camera view and the information being drawn is subject to change. I have a listener setup which will update the variables being drawn at the appropriate time but I now want to "refresh" this draw in that listener.
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; ....
}
I've seen this question asked many times but none of the answers really made sense in what I'm doing... I have an android game (see source at Google source control: http://code.google.com/p/bestcardgameever-android/source/browse/#svn/...) It's a card game, and I've used a method that redraws each hand every round - that might be wasteful but I couldn't think of a better way to do it. Code...
View 3 Replies View Relatedi 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;...........
With Oracle suing Google over Dalvik's patent infringements, I'm wanting to get off the Java bus I've been on for 10+ years. I really enjoy coding in Java, love the tools (eclipse, profilers, etc...), cross platform, garbage collection, etc. What is the best alternative out there? I'd like to build cool gui's, mobile apps, web apps, back-end integration, pretty much everything and anything. I don't really want to invest in learning 5 different languages for 5 different scenarios if possible. I'd love to be contributing to FOSS. Even if many things aren't there yet, I want to get on the train with a technology that is headed in the right direction. I supported Java out of the box with 1.0 implementations because it got me off of MS choke-hold. Now I want to get off the Java train for the same reason - Oracle! I looked briefly at Parrot VM. I've never felt too comfortable with Dynamic languages, but if they are really the way to go, I'll battle that early learning curve. Tried Ruby on Rails for a while, and it was okay, though I missed my Eclipse debugger, code completion, etc., so didn't last long. Trying out Groovy...but I want to distance myself from any litigation and really want to support freedom. I'd prefer not to program in C or C++, don't want to do memory management. So, in conclusion, what is a good next step for an old Java hand? What languages have seasoned Java professionals moved onto? Do I need to worry about things like Scala that are designed to run on the JVM? What does this lawsuit about Dalvik mean?
View 4 Replies View RelatedI'm trying to write a rogue-like game for my blackberry and hopefully any other phone that supports some sort of JVM.Because I use Java in my job I'm looking to write the game in another language but I cannot find a language that will work on multiple phones.
View 5 Replies View Relatedthe title say it all. I wanna know a corresponding method in Android/Java that is like the GetTickCount method in C#/C++?
View 1 Replies View RelatedWhat is the best (meaning: most popular) UI Java markup language for designing applications for Google Android?
View 1 Replies View RelatedAll SYMBIAN based end devices accept Java language Applications
(i)Does this mean that the applications made for Android would run in S60 ,without any modifications?
(ii)If not then what exactly we mean when we say the above statement? Is there any web link to which I can refer to?
(iii)What are the coding guidelines that we need to follow so that an Android application can be ported on S60 with minimum changes?
Why should a static method in java accept only final or non final variables within its method, but not static?
For example I have the following method:
CODE:.................
In Android, is there a similar method to the repaint() in java?
View 1 Replies View RelatedIn my Android app, I need to call a non static java method from C/C++. But i get a blunt crash when i do it using GetMethodID/CallVoidMethod()1 methods.
I have done like this:
1. Register the method using GetMethodID() as follows (mine is a cpp file): jmethodID xyz = (env)->GetMethodID( cls, "showxyz", "()V");
2. And I call this method as follows: env->CallVoidMethod(cls, xyz);
3. In java, my showxyz() is defined this way(this basically enables a button which was disabled) void showxyz() {findViewById(R.id.btnPass).setEnabled(true);}
And this crashes.
But I have been using this method of calling Java funcs from C using a set of GetStaticMethodID/CallStaticVoidMethod()(for nonstatic methods) and that works always.
But in this case, I have to call a non-static method and i get a crash.
I thought when you passed objects to methods in Java, they were supposed to be by value.
public class MyClass{
int mRows;
int mCols;
Tile mTiles[][]; //Custom class
//Constructor
public MyClass(Tile[][] tiles, int rows, int cols) {..........
At this point, any changes to the mTiles object are reflected back to the tiles object.
I have some java code that I want to share with some classmates however I do not want to share the source with them.What is the standard method to provide someone with a Java executable that they can use but they cannot see the source.Not sure if this is relevant but the code that I will be giving them will be run on android.
View 3 Replies View RelatedI am having a static method .In the method when I decalare a variable , it was showing an error in eclipse saying that the variable should be decalared as final.
Can I know the reason for this , y should a variable in a static method be declared as final? I am writng an Android application where I should pass as an argument current Context of that application. So, when I pass the current context to the method and trying to copy it in a local variable , I am getting this error saying that the variable should be declared as final.
My method is like this:
CODE:.............
Error is showing at line where Context myctx=ctx; is declared and asking me to declare it as final.
My Android app runs fine, but: If I insert a call to WebView.setScrollbarFadingEnabled, it crashes saying:
Could not find method android.webkit.WebView.setScrollbarFadingEnabled, referenced from [my class]
VFY: unable to resolve virtual method 289: Landroid/webkit/WebView;.setScrollbarFadingEnabled (Z)V
I am using Android 1.5, not a custom ROM. My app defines minSdkVersion="3" I always clean before compiling.
Is setScrollbarFadingEnabled unavailable in Android 1.5? If so, why don't I receive a compiler error?
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!
Could someone please suggest me a good/efficient way to communicate with the server. I could think of two options 1) Use http post methods to send data to a php script at the server which would later call the google api's written in another java program (jar)or use php to use google api's (if its possible) to find nearby restaurants and send the list back to client. 2) Use simple java socket programming. The server has a jar file that supports multi threading and it does the job of finding restaurants and sending the list.
View 4 Replies View RelatedHello, I am completely new to the JAVA language. I have Eclipse installed with Android tools. I have a heavy amount of experience in JASS, so I understand the whole scheme of game making with coding. Any suggestions on reading materials that will get me started? I have no clue where to start
View 3 Replies View RelatedDo you know a library or method to serialize / deserialize Java bean to json in android?
how i can introspect a javabean and fill its fields?
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;...........
I try to make android java app that uses webkit browser component but in slight different way. My primary goal is to modify the webkit WebViewCore java class method so my android application uses my own WebView which derived from modified WebViewCore and acts as I wish. The problel is that WebViewCore and entire bunch of related classes is not part of public SDK.
So far I tried:
- replaced android.jar from SDK in my project with "full" version (framework.jar)
- copied entire webkit java classes from Android OS to my project and modified the method as I need.
- included in lib/armeabi the libwebcore.so and libchrome_net.so (these I grabbed from rooted phone which I gonna to use for experiments)
- compiled and created apk file with libs included (in the code java layer calls my own libs using System.loadLibrary(..))
- application crashes on launch on device with:
Code:
04-18 10:39:23.451: D/dalvikvm(8214): Trying to load lib /data/data/com.tester.webtest/lib/libwebcore2.so 0x2bb4a1c8
04-18 10:39:23.511: D/dalvikvm(8214): Added shared lib /data/data/com.tester.webtest/lib/libwebcore2.so 0x2bb4a1c8
04-18 10:39:23.521: D/dalvikvm(8214): Trying to load lib /data/data/com.tester.webtest/lib/libchromium_net2.so 0x2bb4a1c8
04-18 10:39:23.531: D/dalvikvm(8214): Added shared lib /data/data/com.tester.webtest/lib/libchromium_net2.so 0x2bb4a1c8
04-18 10:39:23.541: D/dalvikvm(8214): No JNI_OnLoad found in /data/data/com.tester.webtest/lib/libchromium_net2.so 0x2bb4a1c8,
[code]....
What should I do for making my own independent version of webkit, so I can install it with my application on specific phone without breaking other apps (browsers) behaviour?
Possible Duplicate:
Alternatives to Java for Android development?
I want to make apps for Android (Mobile OS) what other language(s) can i make them in EXCEPT java?
I am looking to run a certain method call every ten minutes in Android, what is the best way to go about implementing this? I am currently looking at using the Handler object's PostDelayed method.
View 1 Replies View RelatedI have a java class Poker.java and an Activity .GameWindow in GameWindow.Java. In the GameWindow activity i have a method...
View 2 Replies View RelatedYou need a reference to the class that contains the method you want to call. To access the method homepage() inside the eSkyGuide from the class Weather, you need an instance of the eSkyGuide class inside the instance of the Weather class.
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