Android : Can Not Call A Java Method Using Add Java Script Interface()
Mar 16, 2009I'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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Android : How To Call An Activity Method From Another Java File
Oct 30, 2009I 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 RelatedAndroid : JNI Problem - From C Language Call Java Method
Oct 15, 2009JNI 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...
View 3 Replies View RelatedAndroid : Way To Call Phone Layout_gravity Property From A Java Method
May 31, 2010I 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 RelatedAndroid :: Call Java File On Click In Another Java Class?
May 19, 2010i 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;...........
Android :: Java Compatibility With GetFields Method In Android Java.lang.Class
Feb 11, 2009I'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; ....
}
Android :: Android / Java - Call Function In Separate *.java File?
Aug 16, 2010I 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!
Android :: Call Java Methods From One Java Class To Another In Android?
Nov 3, 2010i 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;...........
Android :: Call Java Class Methods To Other Java Class File On Android
Nov 3, 2010i 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 {................
Android :: Is There Similar Method To Repaint() In Java?
Jun 19, 2010In Android, is there a similar method to the repaint() in java?
View 1 Replies View RelatedAndroid :: Calling A Non-static Java Method From C
Dec 22, 2009In 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.
Android :: Passing Object To Method In Java Appears To Be By Reference
Sep 29, 2010I 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.
Android :: What Is Standard Method / To Provide With Java Executable / Ppl Cannot See Source?
Jul 20, 2010I 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 RelatedAndroid :: Why Should A Variable In Static Method Be Declared As Final In Java
Sep 15, 2010I 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.
Android : App Crashes - Can't Find A Java Method Despite - No Compiler Error
Aug 20, 2010My 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?
Android :: Use HTTP Post Method Or Simple Java Socket Program
Mar 20, 2010Could 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 RelatedGeneral :: How To Hack Webkit Java Class Method
Apr 18, 2012I 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?
Android :: Library / Method To Serialize - Deserialize Java Bean To Json In Droid?
Aug 2, 2009Do 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?
Android :: Java.io / Java.Lang Different From Packages In Windows?
Aug 8, 2009Java packages like Java.io, Java.Lang etc used in android, are they different from Java packages in windows ? means specially made for android ?
View 2 Replies View RelatedAndroid :: Which Is Android / Java Corresponding Method To C#/C++ Method GetTickCount()?
Aug 28, 2010the 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 RelatedAndroid :: Static Method In Java Accept Only Final Or Non Final Variables Within Its Method - But Not Static
Sep 15, 2010Why 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:.................
Android :: How To Call Java Methods From C++ In JNI?
Oct 10, 2010So I'm writing an Android app which uses a large c++ library. I have everything working so that the java app can call the c++ delegation methods, but I'm finding myself wishing I could log messages from c++ to the Android log. This is easy from java, but I'm at a loss as to how to call a java method from c++. My searches found methods for opening a jvm from c++, which is not at all what I want to do. Ideally, I'd like to pass a log method pointer to c++, which could then be used whenever I wanted. Of course, java doesn't support method pointers.
View 2 Replies View RelatedAndroid :: Can I Call R.java Across Packages
Feb 16, 2009I have two packages(Pack1 and Pack2) in same project(Proj) When i created the project (Proj) that time Pack1 was created and R.java was there bydefault.
Now i created Pack2 in same project(Proj) and want to acess some XML files there, but cant access as when i write "R.layout.xxx" that time i don't find any list of xml files there.
Is there any solution to access the XML files across packages
Android :: Call Java Script Function?
Oct 8, 2010I create a javascript function to generate the graph using RGraph.Now i want to send the data for the graph parameters from android java file.For that i want to access the script function in the android java file.Could anyone tell how to do that in android.
View 1 Replies View RelatedAndroid :: Get A Java To Call Data From The Internet?
Apr 4, 2010I am trying to pull data from the internet to make a widget for the home screen.
I have the layout built:
CODE:............
Image downloaded from the internet goes here. Needs to be updated every evening at midnight or unless the button below is pressed. Now if I could only figure out exactly how to do this, life would be good."
CODE:................
Got the provider xml bulit:
CODE:.................
But here is were I am stuck. I just don't know where to start at all. The java is so far beyond my little head that I don't know what to do.
CODE:............
The wiki example just confused me more. I just don't know where to begin.
Android :: Call A Value Entered In A UI To Your Java Class?
Jan 23, 2010Making 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?
Android :: Why AlarmManagerService.java Call - Remove - First In A Set - Alarm
Jul 13, 2010It was a bit baffling (Probably there is a good reason, and it doesnt take much to baffle me)
AlarmManager am; ... PendingIntent pi;
am.set(pi, ...) at 11pm am.set(pi,...) at 2pm
Same "pending intent" with the same intent and request code, in otherwords they resolve to same intent on equals.
Although I know what happens (being the latest one takes precedence), I would have expected my broadcast receiver to be called twice.
I thought something funny is happening in the PendingIntent.
However when I looked at the AlarmManagerService.java I have noticed that the "set.." methods are calling a "remove" using the PendingIntent that is passed in, essentially cancelling the one before.
Android :: Call Java Script Function From Activity
Jan 31, 2010can u tell me how to call a java script method from android activity...
View 3 Replies View RelatedAndroid :: Cannot Find Symbol Symbol - Method Log - Java.lang.String
Sep 22, 2010am getting this error: cannot find symbol symbol: method log(java.lang.String) when using method : log("some test", +test);
I have imported import android.text.TextUtils; import android.util.Log;
Still its throwing same error why it is so ?
Android : Java - Implement A Run Method Of Thread If Create A Thread Global
Sep 7, 2010How can I implement a run() method of thread if I create a Thread Global?
I mean If I create a Thread Globally then can I implement its run() method {" public void run()"} anywhere in my Application?
In the run() method I have to write the code to perform some action.
IF I can do it then please can anyone show me briefly how to do it particularly.