Android :: Retrieve Java Script Function Value In Webview Component

Feb 17, 2010

How can I retrieve the java script function value from a web page loaded withing a webview component?

Android :: retrieve java script function value in webview component


Android :: Pass Javascript Function To Java Using Webview AddJavascripInterface

May 12, 2009

I made a webview.addjavascriptinterface(geo, "geo"); to access the geo class from javascript, and, in the html-javascript I write: --------- function successCallback(p){ document.write("helo"); }

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Android :: Callbacks With WebView Component?

Sep 17, 2010

I am doing authentication with a third-party site that's supposed to redirect back to my app with auth token (OAUTH).

I have the callback working properly if I open the 3rd party site in a separate browser process via this.startActivity(new Intent(Intent.ACTION_VIEW, uri));

But, if I embed a WebView component in my layout, and open the url in that, the callback does not work. Webview says "You do not have permission to open myapp://callback?token=...." and quickly refreshes to "Web page not available...temporarily down..."

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Android : Embed A Flex Component Into Already Existing Classic Java Droid App?

Sep 7, 2010

I know it is possible to develop a full flex application using AIR for android but what I need is to embed a flex component into an already existing classic Java android application.

I found some flash players in java but they all either require a JFrame or include of specific windows dlls.

Is it even possible ? I found no info on the net about this

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Android :: Android / Java - Call Function In Separate *.java File?

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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Android :: Retrieve User-Agent Programatically Without Having A WebView In Activity?

Sep 2, 2010

Is there a way to retrieve Browser's user-agent without having a WebView in activity?

I know it is possible to get it via WebView:

WebView view = (WebView) findViewById(R.id.someview);
String ua = view.getSettings().getUserAgentString() ;

But in my case I don't have/need a webview object and I don't want to create it just for retrieving user-agent string.

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Android :: Create A WebView Object In The OnCreate Function

Apr 18, 2010

I create a WebView object in the OnCreate function. Now I need to be able to pass this same object to other functions in the code, such as the onOptionsItemSelected function. I currently have it where I just create a new WebView object in each function where I need it, but this slows down the code since it has to recreate it and such.

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Android : How Do You Store - Retrieve Data From A Text File In Java

Jun 17, 2010

The question is in the title.

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Android :: .NET Trim Function In Java?

Aug 8, 2010

In an Android app, I am looking for the functionality of the .NET string function [Trim('aaa')] which will trim off the text "aaa" off a string. I don't think this is natively available in Java and I haven't seen that functionality in Android Java textutil library. Is there an easy way to have a Java app trim a set of characters from the string?

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Android :: Call Java Script Function?

Oct 8, 2010

I 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.

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Android :: What Function Use To Control Memory In Java

Sep 28, 2010

in c, c++ , there are many memory-contorl-function like - memset,memcpy,sprintf i want to use those function in java what and how should i use?

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Android :: Checksum Java Function At Runtime

Nov 1, 2010

A while ago I tried to work out how to checksum a function at runtime. As I remember, I failed due to some missing functionality of the class loader from vanilla java. Has anyone managed to do this ?

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Android :: Generating Function Arguments In Java

Jun 12, 2010

I'm very new to java and am working on my first Android app. I am using the webview demo as a template. I am trying to generate a random integer between 1 and 12 and then call a certain javascript function based on the result. Here's what I have:

int number = 1 + (int)(Math.random() * ((12 - 1) + 1));
number = (int) Math.floor(number);
String nextQuote = "javascript:wave" + number + "()";
mWebView.loadUrl(nextQuote);

So mWebView.loadUrl(nextQuote) will be the same as something like mWebView.loadUrl("javascript:wave1()") I just want to know if what I have here is correct and will work the way I think it will. The application isn't responding as expected and I suspect this bit of code is the culprit.

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Android :: Call Java Script Function From Activity

Jan 31, 2010

can u tell me how to call a java script method from android activity...

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Android :: Java - Set Color Of TextView By Function Getcolorss

Jun 17, 2010

I want to set the color of the TextView by the function getcolorss. I tried a lot of different ways but i cant get in it.

import java.awt.*;
import android.graphics.Color;
public class test extends Activity {
TextView text1 = (TextView) findViewById(R.id.text1);
text1.setTextColor(getcolorss(1));
public Color getcolorss(int x)
{
switch(x)
{
case 1: return Color.BLUE;
case 2: return Color.RED;
}
}}

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Android :: Implement Javascript SetTimeout Function In Java

Nov 1, 2010

I am currently trying to integrate a live search functionality in android. I use a customized Autocomplete widget. The widget itself provides me with a threshold to only start a query after a certain amount of characters have been typed in. But what I also want is that a query only starts, say if a user has stopped typing for 2 seconds.

As I load my contents with a AsyncTask I tried blocking the doInBackground function by calling Thread.sleep() right at the beginning. If the user would then continue typing the program would look after an existing task, cancel it and start a new one. This was my idea. But it doesn't quite work the way I expected. Sometimes it sends out queries even if the user is still typing, sometimes queries are canceled after the users stopped typing. Do you have any ideas on this or maybe a better way to solve this? Here are the code snippets:.....................

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Android :: Java Equivalent Of .NET Path.Combine() Function?

Aug 14, 2010

We are converting apps to Android from .NET

Is there a Java equivalent of the .NET Path.Combine() function?

Currently we check the / on each folder etc before building paths.

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Android :: Does Java Function Call Spawns New Thread For Execution?

Jun 24, 2010

Suppose i have one simple function in my program. Whenever i call that function does a new thread or process is spawned to execute the function or it is executed under the main thread memory space only.

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Android :: Builtin Function In Java For Removing Space Between XML Tags

Nov 24, 2010

Is there any built-in function available in java for removing contents (ex: white space) between XML tags: <student> <name>miya</name> <number>12</number> </student> I want to convert the above document as: <student><name>miya</name><number>12</number></student> by removing the white space?

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Android :: Try To Learn Java For Phone Devices / Update Function Not Working

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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Android :: Java Reflection To Call Higher API Level Function / Abstract Class

Jul 6, 2010

My point is to be able to call a 2.1 API if it exists, while the application should be able to run in 1.5
Specifically, I am making a GPS application which would like to call android.location.LocationManager.addNmeaListener if available. My problem is that this call takes as parameter an abstract class (GpsStatus.NmeaListener) which I cannot pass directly to Class.GetMethod (or my application won't work in 1.5). What I am currently trying is a) to create a wrapper class for GpsStatus.NmeaListener:......................

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Android :: Java.lang.reflect.InvocationTargetException During Calling A Function Of Another Application At Runtime

Apr 17, 2009

I am calling a method of another .apk file dynamically at runtime in my application. I can execute it successfully if method does not contain any variable which is defined outside of that method.

But if I am using the variables which are defined outside that method ( in the same activity or same .apk) then my application throws "java.lang.reflect.InvocationTargetException" at runtime.

For e.g. if method defines as ,

COE:...................

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Android : WebView - Can I Select Text In Java

Sep 17, 2009

I'd like to use WebView to display some content (from my Java code or local temp file).

I need to select some characters (change background color) of the view. Of course I need to change those selected char. using my Java code. How can it be done ?

Can you post a short example ?

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Android :: WebView Pre - Executing Java Before Loading Page

May 26, 2010

I would like to a WebView to run some JavaScript before loading the rest of the page. This JavaScript should run in the same context of the page, just as if extra <script> content were added before any other <script> content. This is not possible with add Java script Interface() since I want to set up some instance variables, before the page scripts are run, so that the page scripts can use them.

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Android :: Webview - Possible To Execute Javascript From Java Synchronously

Apr 6, 2009

I am writing a hybrid web/native app and ran into issue. My app downloads a music file via Java code, and needs to update a Javascript download progress bar in the WebView in real time.

My understanding is the only way to call Javascript from Java is via the WebView's loadUrl method.

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

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Android :: WebView - Documentation Of JavaScript And Java Interaction

Sep 30, 2010

I have found that there is a significant lack of documentation of WebView's ability to communicate with Java via WebView.addJavaScript() method. First, the debug document http://developer.android.com/guide/developing/debug-tasks.html#Debugg... appears to no longer work. Second, what object types should we expect when going to and from JavaScript. I have done some trial and error and it appears that complex types can cross the boundary, for example java.util.Vector. However when a Java method returns a byte array to JavaScript it has a type of undefined and I have been unable to coerce it to any other type. Finally, there is great potential with this interface and with some more attention we could go far.

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Android :: Accesing Attributes Of Java Class Using Webview

Sep 20, 2010

I am able to bind an object to Javascript through addJavaInterface() of WebView. I am able to access methods from JavaScript, Is there a way to access the java class attributes through JavaScript?

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Android :: Use WebView To Evaluate Java Script String And Return Value

Dec 1, 2009

Given that scripting is not natively supported in Android and wrapping libraries like javax.script.ScriptEngine into your app will make it too large, is it possible to send a javascript string to an invisible WebView and have it evaluate the string and return you the results (another string)? I want to go this route because I want to save all my scripts to disk so my app can remain small. edit I need Java code to evaluate javascript strings not the other way around. addJavascriptInterface() doesn't help.

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Android :: Space Between Component

Aug 20, 2009

I am putting one spinner and one button using following code. Can some one tell me how can i put some space between it?

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Android :: Use Of Service Component?

Aug 31, 2010

Service Component is used to do some task which can be done without user interaction. But for that we have to run a thread in subclass of the Service. I think we can create a thread in Activity class itself then what is the use of Service component? Why don't we create another thread and write the non interacting code in this thread.

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