I believe that it's possible to call Java methods from (PhoneGap) Javascript. Anyone knows how to do that?? (I know how to do it by changing the source code of PhoneGap, but I'd avoid that)
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I'm loading up a webview with some locally generated html and javascript.It makes calls to app methods just fine.But what's the right way to get data from Javascript back to the application? It's simple to have javascript call app methods, but any parameters specified in the call on the javascript side don't survive the trip (I just get null in the app).Gross hacks seem obvious (open a url and encode the data in the url), but that can't be right.You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscribe@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
View 3 Replies View RelatedI've been following a discussion on the apparent lack of JavaScript and Java on Android browsers. One of my hot button applications requires either JavaScript or at least the ability to run a .jar file in order to save data. No one in the other discussion has been able to find a Android browser capable of supporting this application (TiddlyWiki)..
View 12 Replies View RelatedI have written a command line interface program in the C language. This kind of programs (as you know) waits for user commands typed in the terminal and reacts on depend of them. In fact, the program implements a callback function which parses the command and invokes the appropriate function in order to respond to the user.Now, I have to make a Java GUI (Graphical user interface) for the desktop (Ubuntu) version of this program and then port the same program to the Android Platform (of course the GUI will respect Android framework), so I'm looking for the best way to do it.I have heard about JNI and JNA and I don't known which one will be the best for me. By the way what are the main differences between JNI and JNA.
View 1 Replies View RelatedI 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:.....................
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:................
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.
View 2 Replies View RelatedWhy below code is throwing nullPointer exception in last line (when accessing javaInterface.mValue) This line through NullPointer, so basically it is not being set. even though the javascript is correct and has been verified using FireBug that it returns expected string.
There are few lines above this code chunk but it is irrelevant this problem
CODE:................
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"); }
View 3 Replies View RelatedI want to be able to make an iphone and android app using php. I have looked at phonegap and appcelerator and it seems like only html and javascript can be used. These frameworks want to make it easy to make apps using web technologies and PHP i would argue is one of the biggest web technologies, but I'm not seeing much (if any) support. I am new, so I could be wrong on multiple levels. So please enlighten me and let me know if what I am trying to achieve is possible.
View 2 Replies View RelatedI am trying to build android example app by using phonegap. Here are the the system details.
Operating System : Windows XP
Android Sdk : 1.5 ( Previously i had 2.2 but deleted suspecting problem was with that)
Ruby : 1.9.1-p430
Ant: 1.8.1
Java JDK 5
PhoneGap 0.9.1
System Enviroment Variables
ANDROID_HOME : D:workandroid-sdk_r3-windowsandroid-sdk-windows
ANT_HOME : D:workANTapache-ant-1.8.1
JAVA_HOME : C:SunSDKjdk
CLASSPATH : C:SunSDKjdklib
Path : D:workandroid-sdk_r3-windowsandroid-sdk-windows;C:Ruby191in;D:workANTapache-ant-1.8.1in;D:workandroid-sdk_r3-windowsandroid-sdk-windows ools;
I ran ruby script and get output as below
$ ruby ./droidgap "D:/work/android-sdk_r3-windows/android-sdk-windows" pgtest c
om.example.android.pgtest example/ "D:/work/droid_apps/output1"
Building the JAR...
BUILD FAILED
D:workandroid-sdk_r3-windowsandroid-sdk-windows oolsantant_rules_r3.xml:28
3: null returned: 1
Total time: 1 second
Creating Android project for target level 1
Adding www folder to project...
Generating manifest...
Copying over libraries and assets and creating phonegap.js...
c:/Ruby191/lib/ruby/1.9.1/fileutils.rb:1265:in initialize': No such file or dir
ectory - D:/work/phonegap/phonegap-android/framework/phonegap.jar (Errno::ENOENT)
CODE:......
I even changed ant to ant.bat at one place, android to android.bat at two places in ruby script. I also set target_id = 1 which is for 1.5 sdk.
I'm trying to get PhoneGap working. I've hit a hurdle getting started. I've downloaded version 0.9.1. I've been following the instructions at http://phonegap.pbworks.com/Getting-started-with-Android-PhoneGap-in-Eclipse.
Using MacOS 10.5.8. Android SDK is already installed and working with Eclipse. My .bash_profile file looks like this:
$PATH=/usr/local/bin:/usr/local/sbin:/usr/local/mysql/bin:/usr/bin:/bin:/usr/sbin:/sbin:/usr/X11/bin
export PATH=${PATH}:/Applications/android-sdk-mac_86/tools
export PATH=$PATH:/Applications/phonegap-android/bin
(and I restarted my terminal window to make it take effect) I've tried the following command cd /Applications/phonegap-android/bin
ruby ./droidgap /Applications/android-sdk-mac_86 HelloPhoneGap com.myidentity.android /Users/myidentity/Documents/workspace/HelloPhoneGap/assets/www /Users/myidentity/Desktop
and I get the following error: ./droidgap:4:in `require': no such file to load -- /Applications/phonegap-android/bin/lib/generate.rb (LoadError) from ./droidgap:4
I need to scan a barcode using phonegap in Android and iPhone.
Is there a way to do this? If yes, please share links.
i've read about phonegap which enables to write web-based apps for android and i was wondering:how is performance of phonegap compared to a "real" android app.what would NOT work in phonegap?i know it's possible to implement google maps with phonegap but i guess there's a lots of limitation compared to direct coding the maps under android?as a newbie to android (but intermediate in web-programming), should i rather go for direct android coding instead of phonegap? i'm planning to write an app which uses google maps service+gps, database access and such, and i'm afraid it's not really possible with phonegap.
View 2 Replies View RelatedI am trying to develop an app and I want it to bring in data from a mySQL database. But from some reading I have done on different sites, I am realizing that it is probably not going to happen. But I am curious to know, how do apps like PhoneFlix and others view that dynamic data on the application? Does it somehow just bring it in through http? If so, how would I go about doing that? Does anyone know of any good sites that will point me in the right direction?
View 1 Replies View RelatedCurrently I've been using google's static maps to display maps in a phonegap app I'm developing. But I'm wondering if there's any way to load a google map that the user could scroll into and out of? I would want similar functionality as the maps app in most mobile environments. Is there any way to incorporate that type of service into my app?
View 2 Replies View RelatedIn Android, how do I get the application's id programatically (or by some other method), and how can I communicate with other applications using that id?
View 3 Replies View RelatedI noticed on their Facebook page that in February of this year, they had a service outage. Does that mean that you have to rely on their backend for the software to make a connection - on other words: the android app doesn't communicate directly with the PC software?
View 1 Replies View RelatedI followed the tutorial here but when I create the project in Eclipse, i get an error "invalid resource directory name. Resource: "drawable-hdpi" path "/HelloAndroid/res" type "Android AAPT Problem"
View 1 Replies View RelatedIs it possible to use JavaScript in Android?? if so, how? Please provide some examples.
View 3 Replies View RelatedI'd like a Javascript library that will stretch/scale 9-patch images correctly. Know of one?
View 1 Replies View RelatedI have a webview in my program. I loaded a string into this webview that contains javascript function. When i loaded it in the emulator it's not working i.e if I write a simple alert the webView won't display the alert. I have enabled the javascript. But then also its not working.
View 1 Replies View RelatedIs it possible to pass a JavaScript object from JavaScript to Java using addJavascriptInterface()? Something along these lines: var javaScriptObject = {"field1":"string1", "field2":"string2"}; JavaScriptInterface.passObject(javaScriptObject); How would such a call be captured on the Java side? I have no problem setting up the interface to send a string, but when I send an object, I receive null on the Java end.
View 2 Replies View RelatedAre there any means of debugging JS code, or at least get errors, on Android devices?
View 2 Replies View RelatedI want to set text in textview in my android class using a javascript which contains a same named variable as in the class for textview to which I want to assign some text. Something like this..
View 1 Replies View RelatedI want to call android application from JavaScript.
View 2 Replies View RelatedI'm building (for lack of a better description) a mobile web app targeting Android users. I need to know what JavaScript events are available to me. I have been able to make the following work
View 3 Replies View RelatedI'm trying to pass a map from javascript to a java function which has to get that map information and process it.
View 3 Replies View RelatedI'm making an Javascript web app and I can't for the life of me get the touchstart event to fire. I get the touchmove and touchend events no problem. This is a problem because as I see it the best way to distinguish between a tap and a scrolling motion is to zero a counter on the touchstart event, update it at touchmove and then compare it at touchend. I'm doing this so I can do some action at the end of tap but not a scroll. For instance, it would be very confusing if a page opened for an item in a listed after you finished scrolling down that list, but it would be nice to be able to tap on an item to open its page.
This is what I have..
I never see the touchstart alert. If I scroll the touchend will fire and app__touchMoving will have some sort of decent value. On a side note, I've noticed that sometimes the touchend will seem to fire multiple times.
Am I missing something basic here? Plenty of people say that this should work just fine on Android (and iPhone) yet the first listener never seems to fire.
Update: I should mention that I've been testing on a Samsung Galaxy S running Android 2.1.
I am trying to set the value of a global variable from Android code..
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