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  • Help making a button open another app with Java/Android

    - by user569503
    I am trying to learn to make a simple app that opens a couple of other apps to eliminate the need for another apps. I just can't figure it out. From reading here and other places it seems this should work. Button batteryhistory = (Button)findViewById(R.string.BatteryHistoryButtonDialog); batteryhistory.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { Intent i = new Intent(); ComponentName n = new ComponentName("com.android.settings", "com.android.settings.BatteryHistory"); i.setComponent(n); startActivity(i); Thanks so much for the help :D

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  • How to get into android phone without having to press any buttons

    - by user2961092
    I'm not a programmer, so I'm not sure what I'd needed to answer my question. I'm wondering if it's possible to program a way to half wake your cell phone screen without having to press any buttons or using the sensors. Like I've found you can do on the blackberry z10, you have an option to wake the screen by swiping up from a locked screen. I love android and will use it regardless, but I had to use a z10 for work for a while and stumbled upon that feature. It would be fantastic to have that feature with Android as hitting a power button can get annoying. Thanks in advance

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  • Intent resolution in Android

    - by Saksham
    Hello community, If I want to create custom address book (which overrides my phone's default address book), and if I want it to be used by all applications, what should be my intent filter? Does Android allow me to do such a thing considering the fact that such a third-party app could potentially be malicious?! And, if I want to have yet another address book application, I suppose the second app also has same intent-filter, isn't it? How does the framework decide which app to pick if I click on Contacts button when making a call? In other words, how does the framework resolve intents in case there is a conflict between multiple intent-filters? I'm new to android, so please excuse me if this question is stupid. I would like to get some feedback in any case! Thanks in advance, Saksham

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  • using different string files in android

    - by boreas
    I'm porting my iPhone app to android and I'm having a problem with the string files now. The app is a translation tool and users can switch the languages, so all the localized strings are in both languages and they are independent from what locale the OS is running. For iOS version I have different files like de.strings, en.strings and fr.strings and so on. For every target with specified language pair I read the strings from the string tables, e.g. for de-fr I will include de.strings and fr.strings in project and set the name of the string tables in the info-list file and read strings from them. In the end I have one project containing different targets (with different info-list files) and all are well configured. I'm intending to do the same on android platform, but Is only one strings.xml allowed per project? How do I set different build target? How do I specify per target which strings.xml it should read?

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  • Determining the level of Android permission

    - by k4b
    I have some Android permissions which I would like to know to which permision PROTECTION LEVEL they belong. Does anybody know how can this be checked? For example I need to know the PROTECTION LEVEL of android.permission.RECEIVE_BOOT_COMPLETED permission, but I would like to check many more. EDIT: I see that I didn't put it clearly: What I mean is not an API level with which permission was introduced, but permission protection level, one of four: Normal, Dangerous, Signeture, SignatureOrSystem. It determines for example how this permision is presented to user during the application installation. How can I check to which protection level certain permission belongs?

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  • Obtaining Android Public Map API Key

    - by TheHighLifeSon
    I have been trying to obtain a public map api key for my Android app. However the public key that I receive from Google does not work. I have been using the following steps: Obtaining Release Public Map API Key 1.Obtain Private Key: Use Export of Eclipse to sign release application and create new keystore 2.Obtain MD5 certificate: using alias and keystore set up use keytool in Java directory: keytool -list -alias poly_alias -keystore copy MD5 certificate 3.Obtain API Map Key: Visit http://code.google.com/android/maps-api-signup.html and enter MD5 certificate copy key 4.Use New Map API Key: insert new map key for string in strings.xml for string mapApiKey Does anyone have any suggestions on what I am doing wrong?

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  • Android camera to take multiple photos

    - by user2975407
    problem.java public class problem extends Activity { ImageView iv; @Override protected void onCreate(Bundle savedInstanceState) { // TODO Auto-generated method stub super.onCreate(savedInstanceState); setContentView(R.layout.problem); iv=(ImageView) findViewById(R.id.imageView1); Button b=(Button) findViewById(R.id.button1); b.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { Intent intent=new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE); startActivityForResult(intent, 0); } }); } @Override protected void onActivityResult(int requestCode, int resultCode, Intent data) { // TODO Auto-generated method stub super.onActivityResult(requestCode, resultCode, data); Bitmap bm=(Bitmap) data.getExtras().get("data"); iv.setImageBitmap(bm); } } From this code I can only take one photo and it displayed in the screen. **But I want to take more photos nearly 5 photos and display in the screen** Further I want to add these photos to MySQL database.please help me to do that.I am new to android

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  • New way of integrating Openfeint in Cocos2d-x 0.12.0

    - by Ef Es
    I am trying to implement OpenFeint for Android in my cocos2d-x project. My approach so far has been creating a button that calls a static java method in class Bridge using jnihelper functions (jnihelper only accepts statics). Bridge has one singleton attribute of type OFAndroid, that is the class dynamically calling the Openfeint Api methods, and every method in the bridge just forwards it to the OFAndroid object. What I am trying to do now is to initialize the openfeint libraries in the main java class that is the one calling the static C++ libraries. My problem right now is that the initializing function void com.openfeint.api.OpenFeint.initialize(Context ctx, OpenFeintSettings settings, OpenFeintDelegate delegate) is not accepting the context parameter that I am giving him, which is a "this" reference to the main class. Main class extends from Cocos2dxActivity but I don't have any other that extends from Application. Any suggestions on fixing it or how to improve the architecture? EDIT: I am trying a new solution. Make the bridge class into an Application child, is called from Main object, initializes OpenFeint when created and it can call the OpenFeint functions instead of needing an additional class. The problem is I still get the error. 03-30 14:39:22.661: E/AndroidRuntime(9029): Caused by: java.lang.NullPointerException 03-30 14:39:22.661: E/AndroidRuntime(9029): at android.content.ContextWrapper.getPackageManager(ContextWrapper.java:85) 03-30 14:39:22.661: E/AndroidRuntime(9029): at com.openfeint.internal.OpenFeintInternal.validateManifest(OpenFeintInternal.java:885) 03-30 14:39:22.661: E/AndroidRuntime(9029): at com.openfeint.internal.OpenFeintInternal.initializeWithoutLoggingIn(OpenFeintInternal.java:829) 03-30 14:39:22.661: E/AndroidRuntime(9029): at com.openfeint.internal.OpenFeintInternal.initialize(OpenFeintInternal.java:852) 03-30 14:39:22.661: E/AndroidRuntime(9029): at com.openfeint.api.OpenFeint.initialize(OpenFeint.java:47) 03-30 14:39:22.661: E/AndroidRuntime(9029): at nurogames.fastfish.NuroFeint.onCreate(NuroFeint.java:23) 03-30 14:39:22.661: E/AndroidRuntime(9029): at nurogames.fastfish.FastFish.onCreate(FastFish.java:47) 03-30 14:39:22.661: E/AndroidRuntime(9029): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1069) 03-30 14:39:22.661: E/AndroidRuntime(9029): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2751)

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  • Rendering a big game universe - bitmaps or vector graphics?

    - by user1641923
    I am new to an Android development, though I have much experience with Java, C++, PHP programming and a bit experience with vector graphics too (basic 3d Studio Max, Flash, etc). I am starting to work on an Android game. It is going to be a 2D space shooter/RPG, and I am not going to use any game engines and any 3D party libs. I really want to create a very large game universe, or even pseudo-infinite (without visible borders, as if it were a 2D projection of a sphere). It should include 10-12 clusters of 7-8 planets/other space objects and random amount of single asteroids/comets, which player can interact with and also not interactive background. I am looking for a least complicated aproach to create such a universe. My current ideas are: Simply create bitmaps with space scenery background so that they can be tiled seamlessly repeated and construct my 2D universe of this tiles, then place interactive objects (planets, other spaceships) on it. Using vector graphics. I would have a solid color background, some random background objects and gradients here and there. My problems here: Lack of knowledge of how well vector graphics is integrated in Android. Performance? Memory usage? Does Android manage big bitmaps well? Do all of the bitmaps have to be in memory during all game process? I am interested in technical details regarding each of the ideas and a suggestion, which I should go with.

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  • Share text message on selected media

    - by Siddharth
    I want to share text data on player selected social media. Basically I want to implement functionality like following link represent for android. Send Text Content I want to give user a choice for sharing on Twitter, Facebook, Messaging, Gmail etc. Above link give proper guidance for my question. Here is code that work on android Intent sendIntent = new Intent(); sendIntent.setAction(Intent.ACTION_SEND); sendIntent.putExtra(Intent.EXTRA_TEXT, "This is my text to send."); sendIntent.setType("text/plain"); startActivity(sendIntent);Intent sendIntent = new Intent(); sendIntent.setAction(Intent.ACTION_SEND); sendIntent.putExtra(Intent.EXTRA_TEXT, "This is my text to send."); sendIntent.setType("text/plain"); startActivity(sendIntent); I don't know same functionality implementation in Unity. Basically at present I am targeting two platform for my game Android iOS I found answer for Android platform but I can't able to get answer of iOS platform. Share text message on selected media - Unity Forum Now I think my question is clear to all of you. So please help me to solve it.

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  • Where to start with game development?

    - by steven_desu
    I asked this earlier in this thread at stackoverflow.com. One of the early comments redirected me here to gamedev.stackexchange.com, so I'm reposting here. Searching for related questions I found a number of very specific questions, but I'm afraid the specifics have proved fruitless for me and after 4 hours on Google I'm no closer than I started, so I felt reaching out to a community might be in order. First, my goal: I've never made a game before, although I've muddled over the possibility several times. I decided to finally sit down and start learning how to code games, use game engines, etc. All so that one day (hopefully soon) I'll be able to make functional (albeit simple) games. I can start adding complexity later, for now I'd be glad to have a keyboard-controlled camera moving in a 3D world with no interaction beyond that. My background: I've worked in SEVERAL programming languages ranging from PHP to C++ to Java to ASM. I'm not afraid of any challenges that come with learning the new syntax or limitations inherent in a new language. All of my past programming experience, however, has been strictly non-graphical and usually with little or extremely simple interaction during execution. I've created extensive and brilliant algorithms for solving logical and mathematical problems as well as graphing problems. However in every case input was either defined in a file, passed form an HTML form, or typed into the console. Real-time interaction with the user is something with which I have no experience. My question: Where should I start in trying to make games? Better yet- where should I start in trying to create a keyboard-navigable 3D environment? In searching online I've found several resources linking to game engines, graphics engines, and physics engines. Here's a brief summary of my experiences with a few engines I tried: Unreal SDK: The tutorial videos assume that you already have in-depth knowledge of 3D modeling, graphics engines, animations, etc. The "Getting Started" page offers no formal explanation of game development but jumps into how Unreal can streamline processes it assumes you're already familiar with. After downloading the SDK and launching it to see if the tools were as intuitive as they claimed, I was greeted with about 60 buttons and a blank void for my 3D modeling. Clicking on "add volume" (to attempt to add a basic cube) I was met with a menu of 30 options. Panicking, I closed the editor. Crystal Space: The website seemed rather informative, explaining that Crystal Space was just for graphics and the companion software, CEL, provided entity logic for making games. A demo game was provided, which was built using "CELStart", their simple tool for people with no knowledge of game programming. I launched the game to see what I might look forward to creating. It froze several times, the menus were buggy, there were thousands of graphical glitches, enemies didn't respond to damage, and when I closed the game it locked up. Gave up on that engine. IrrLicht: The tutorial assumes I have Visual Studio 6.0 (I have Visual Studio 2010). Following their instructions I was unable to properly import the library into Visual Studio and unable to call any of the functions that they kept using. Manually copying header files, class files, and DLLs into my project's folder - the project failed to properly compile. Clearly I'm not off to a good start and I'm going in circles. Can someone point me in the right direction? Should I start by downloading a program like Blender and learning 3D modeling, or should I be learning how to use a graphics engine? Should I look for an all-inclusive game engine, or is it better to try and code my own game logic? If anyone has actually made their own games, I would prefer to hear how they got their start. Also- taking classes at my school is not an option. Nothing is offered.

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  • Where to start with game development?

    - by steven_desu
    Searching for related questions I found a number of very specific questions, but I'm afraid the specifics have proved fruitless for me and after 4 hours on Google I'm no closer than I started, so I felt reaching out to a community might be in order. First, my goal: I've never made a game before, although I've muddled over the possibility several times. I decided to finally sit down and start learning how to code games, use game engines, etc. All so that one day (hopefully soon) I'll be able to make functional (albeit simple) games. I can start adding complexity later, for now I'd be glad to have a keyboard-controlled camera moving in a 3D world with no interaction beyond that. My background: I've worked in SEVERAL programming languages ranging from PHP to C++ to Java to ASM. I'm not afraid of any challenges that come with learning the new syntax or limitations inherent in a new language. All of my past programming experience, however, has been strictly non-graphical and usually with little or extremely simple interaction during execution. I've created extensive and brilliant algorithms for solving logical and mathematical problems. However in every case input was either defined in a file, passed form an HTML form, or typed into the console. Real-time interaction with the user is something with which I have no experience. My question: Where should I start in trying to make games? Better yet- where should I start in trying to create a keyboard-navigable 3D environment? In searching online I've found several resources linking to game engines, graphics engines, and physics engines. Here's a brief summary of my experiences with a few engines I tried: Unreal SDK: The tutorial videos assume that you already have in-depth knowledge of 3D modeling, graphics engines, animations, etc. The "Getting Started" page offers no formal explanation of game development but jumps into how Unreal can streamline processes it assumes you're already familiar with. After downloading the SDK and launching it to see if the tools were as intuitive as they claimed, I was greeted with about 60 buttons and a blank void for my 3D modeling. Clicking on "add volume" (to attempt to add a basic cube) I was met with a menu of 30 options. Panicking, I closed the editor. Crystal Space: The website seemed rather informative, explaining that Crystal Space was just for graphics and the companion software, CEL, provided entity logic for making games. A demo game was provided, which was built using "CELStart", their simple tool for people with no knowledge of game programming. I launched the game to see what I might look forward to creating. It froze several times, the menus were buggy, there were thousands of graphical glitches, enemies didn't respond to damage, and when I closed the game it locked up. Gave up on that engine. IrrLicht: The tutorial assumes I have Visual Studio 6.0 (I have Visual Studio 2010). Following their instructions I was unable to properly import the library into Visual Studio and unable to call any of the functions that they kept using. Manually copying header files, class files, and DLLs into my project's folder - the project failed to properly compile. Clearly I'm not off to a good start and I'm going in circles. Can someone point me in the right direction? Should I start by downloading a program like Blender and learning 3D modeling, or should I be learning how to use a graphics engine? Should I look for an all-inclusive game engine, or is it better to try and code my own game logic? If anyone has actually made their own games, I would prefer to hear how they got their start. Also- taking classes at my school is not an option. Nothing is offered.

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  • How can I update the album art path using contentResolver?

    - by Ungureanu Liviu
    Hi! I want to update/insert a new image for an album in MediaStore but i can't get it work.. This is my code: public void updateAlbumImage(String path, int albumID) { ContentValues values = new ContentValues(); values.put(MediaStore.Audio.Albums.ALBUM_ART, path); int n = contentResolver.update(MediaStore.Audio.Albums.EXTERNAL_CONTENT_URI, values, MediaStore.Audio.Albums.ALBUM_ID + "=" + albumID, null); Log.e(TAG, "updateAlbumImage(" + path + ", " + albumID + "): " + n); } The error is: 03-24 03:09:46.323: ERROR/AndroidRuntime(5319): java.lang.UnsupportedOperationException: Unknown or unsupported URL: content://media/external/audio/albums 03-24 03:09:46.323: ERROR/AndroidRuntime(5319): at android.database.DatabaseUtils.readExceptionFromParcel(DatabaseUtils.java:131) 03-24 03:09:46.323: ERROR/AndroidRuntime(5319): at android.database.DatabaseUtils.readExceptionFromParcel(DatabaseUtils.java:111) 03-24 03:09:46.323: ERROR/AndroidRuntime(5319): at android.content.ContentProviderProxy.update(ContentProviderNative.java:405) 03-24 03:09:46.323: ERROR/AndroidRuntime(5319): at android.content.ContentResolver.update(ContentResolver.java:554) 03-24 03:09:46.323: ERROR/AndroidRuntime(5319): at com.liviu.app.smpp.managers.AudioManager.updateAlbumImage(AudioManager.java:563) 03-24 03:09:46.323: ERROR/AndroidRuntime(5319): at com.liviu.app.smpp.ShowAlbumsActivity.saveImageFile(ShowAlbumsActivity.java:375) 03-24 03:09:46.323: ERROR/AndroidRuntime(5319): at com.liviu.app.smpp.ShowAlbumsActivity.onClick(ShowAlbumsActivity.java:350) Thank you!

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  • What does your Python development workbench look like?

    - by Fabian Fagerholm
    First, a scene-setter to this question: Several questions on this site have to do with selection and comparison of Python IDEs. (The top one currently is What IDE to use for Python). In the answers you can see that many Python programmers use simple text editors, many use sophisticated text editors, and many use a variety of what I would call "actual" integrated development environments – a single program in which all development is done: managing project files, interfacing with a version control system, writing code, refactoring code, making build configurations, writing and executing tests, "drawing" GUIs, and so on. Through its GUI, an IDE supports different kinds of workflows to accomplish different tasks during the journey of writing a program or making changes to an existing one. The exact features vary, but a good IDE has sensible workflows and automates things to let the programmer concentrate on the creative parts of writing software. The non-IDE way of writing large programs relies on a collection of tools that are typically single-purpose; they do "one thing well" as per the Unix philosophy. This "non-integrated development environment" can be thought of as a workbench, supported by the OS and generic interaction through a text or graphical shell. The programmer creates workflows in their mind (or in a wiki?), automates parts and builds a personal workbench, often gradually and as experience accumulates. The learning curve is often steeper than with an IDE, but those who have taken the time to do this can often claim deeper understanding of their tools. (Whether they are better programmers is not part of this question.) With advanced editor-platforms like Emacs, the pieces can be integrated into a whole, while with simpler editors like gedit or TextMate, the shell/terminal is typically the "command center" to drive the workbench. Sometimes people extend an existing IDE to suit their needs. What does your Python development workbench look like? What workflows have you developed and how do they work? For the first question, please give the main "driving" program – the one that you use to control the rest (Emacs, shell, etc.) the "small tools" -- the programs you reach for when doing different tasks For the second question, please describe what the goal of the workflow is (eg. "set up a new project" or "doing initial code design" or "adding a feature" or "executing tests") what steps are in the workflow and what commands you run for each step (eg. in the shell or in Emacs) Also, please describe the context of your work: do you write small one-off scripts, do you do web development (with what framework?), do you write data-munching applications (what kind of data and for what purpose), do you do scientific computing, desktop apps, or something else? Note: A good answer addresses the perspectives above – it doesn't just list a bunch of tools. It will typically be a long answer, not a short one, and will take some thinking to produce; maybe even observing yourself working.

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  • Learning content for MCSDs: Web Applications and Windows Store Apps using HTML5

    Recently, I started again to learn for various Microsoft certifications. First candidate on my way to MSCD: Web Applications is the Exam 70-480: Programming in HTML5 with JavaScript and CSS3. Motivation to go for a Microsoft exam I guess, this is quite personal but let me briefly describe my intentions to go that exam. First, I'm doing web development since the 1990's. Working with HTML, CSS and Javascript is happening almost daily in my workspace. And honestly, I do not only do 'pure' web development but already integrated several HTML/CSS/Javascript frontend UIs into an existing desktop application (written in Visual FoxPro) inclusive two-way communication and data exchange. Hm, might be an interesting topic for another blog article here... Second, this exam has a very interesting aspect which is listed at the bottom of the exam's details: Credit Toward Certification When you pass Exam 70-480: Programming in HTML5 with JavaScript and CSS3, you complete the requirements for the following certification(s): Programming in HTML5 with JavaScript and CSS3 Specialist Exam 70-480: Programming in HTML5 with JavaScript and CSS3: counts as credit toward the following certification(s): MCSD: Web Applications MCSD: Windows Store Apps using HTML5 So, passing one single exam will earn you specialist certification straight-forward, and opens the path to higher levels of certifications. Preparations and learning path Well, due to a newsletter from Microsoft Learning (MSL) I caught interest in picking up the circumstances and learning materials for this particular exam. As of writing this article there is a promotional / voucher code available which enables you to register for this exam for free! Simply register yourself with or log into your existing account at Prometric, choose the exam for a testing facility near to you and enter the voucher code HTMLJMP (available through 31.03.2013 or while supplies last). Hurry up, there are restrictions... As stated above, I'm already very familiar with web development and the programming flavours involved into this. But of course, it is always good to freshen up your knowledge and reflect on yourself. Microsoft is putting a lot of effort to attract any kind of developers into the 'App Development'. Whether it is for the Windows 8 Store or the Windows Phone 8 Store, doesn't really matter. They simply need more apps. This demand for skilled developers also comes with a nice side-effect: Lots and lots of material to study. During the first couple of hours, I could easily gather high quality preparation material - again for free! Following is just a small list of starting points. If you have more resources, please drop me a message in the comment section, and I'll be glad to update this article accordingly. Developing HTML5 Apps Jump Start This is an accelerated jump start video course on development of HTML5 Apps for Windows 8. There are six modules that are split into two video sessions per module. Very informative and intense course material. This is packed stuff taken from an official preparation course for exam 70-480. Developing Windows Store Apps with HTML5 Jump Start Again, an accelerated preparation video course on Windows 8 Apps. There are six modules with two video sessions each which will catapult you to your exam. This is also related to preps for exam 70-481. Programming Windows 8 Apps with HTML, CSS, and JavaScript Kraig Brockschmidt delves into the ups and downs of Windows 8 App development over 800+ pages. Great eBook to read, study, and to practice the samples - best of all, it's for free. codeSHOW() This is a Windows 8 HTML/JS project with the express goal of demonstrating simple development concepts for the Windows 8 platform. Code, code and more code... absolutely great stuff to study and practice. Microsoft Virtual Academy I already wrote about the MVA in a previous article. Well, if you haven't registered yourself yet, now is the time. The list is not complete for sure, but this might keep you busy for at least one or even two weeks to go through the material. Please don't hesitate to add more resources in the comment section. Right now, I'm already through all videos once, and digging my way through chapter 4 of Kraig's book. Additional material - Pluralsight Apart from those free online resources, I also following some courses from the excellent library of Pluralsight. They already have their own section for Windows 8 development, but of course, you get companion material about HTML5, CSS and Javascript in other sections, too. Introduction to Building Windows 8 Applications Building Windows 8 Applications with JavaScript and HTML Selling Windows 8 Apps HTML5 Fundamentals Using HTML5 and CSS3 HTML5 Advanced Topics CSS3 etc... Interesting to see that Michael Palermo provides his course material on multiple platforms. Fantastic! You might also pay a visit to his personal blog. Hm, it just came to my mind that Aaron Skonnard of Pluralsight publishes so-called '24 hours Learning Paths' based on courses available in the course library. Would be interested to see a combination for Windows 8 App development using HTML5, CSS3 and Javascript in the future. Recommended workspace environment Well, you might have guessed it but this requires Windows 8, Visual Studio 2012 Express or another flavour, and a valid Developers License. Due to an MSDN subscription I working on VS 2012 Premium with some additional tools by Telerik. Honestly, the fastest way to get you up and running for Windows 8 App development is the source code archive of codeSHOW(). It does not only give you all source code in general but contains a couple of SDKs like Bing Maps, Microsoft Advertising, Live ID, and Telerik Windows 8 controls... for free! Hint: Get the Windows Phone 8 SDK as well. Don't worry, while you are studying the material for Windows 8 you will be able to leverage from this knowledge to development for the phone platform, too. It takes roughly one to two hours to get your workspace and learning environment, at least this was my time frame due to slow internet connection and an aged spare machine. ;-) Oh, before I forget to mention it, as soon as you're done, go quickly to the Windows Store and search for ClassBrowserPlus. You might not need it ad hoc for your development using HTML5, CSS and Javascript but I think that it is a great developer's utility that enables you to view the properties, methods and events (along with help text) for all Windows 8 classes. It's always good to look behind the scenes and to explore how it is made. Idea: Start/join a learning group The way you learn new things or intensify your knowledge in a certain technology is completely up to your personal preference. Back in my days at the university, we used to meet once or twice a week in a small quiet room to exchange our progress, questions and problems we ran into. In general, I recommend to any software craftsman to lift your butt and get out to exchange with other developers. Personally, I like this approach, as it gives you new points of view and an insight into others' own experience with certain techniques and how they managed to solve tricky issues. Just keep it relaxed and not too formal after all, and you might a have a good time away from your dull office desk. Give your machine a break, too.

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  • changing value of a textview while change in other textview by multiplying

    - by sur007
    Here I am getting parsed data from a URL and now I am trying to change the value of parse data to users only dynamically on an text view and my code is package com.mokshya.jsontutorial; import java.text.DecimalFormat; import java.util.ArrayList; import java.util.HashMap; import org.json.JSONArray; import org.json.JSONException; import org.json.JSONObject; import org.w3c.dom.Document; import org.w3c.dom.Element; import org.w3c.dom.NodeList; import com.mokshya.jsontutorialhos.xmltest.R; import android.app.AlertDialog; import android.app.ListActivity; import android.content.DialogInterface; import android.content.Intent; import android.os.Bundle; import android.text.Editable; import android.text.TextWatcher; import android.util.Log; import android.view.View; import android.widget.AdapterView; import android.widget.AdapterView.OnItemClickListener; import android.widget.EditText; import android.widget.ListAdapter; import android.widget.ListView; import android.widget.SimpleAdapter; import android.widget.TextView; import android.widget.Toast; public class Main extends ListActivity { EditText resultTxt; public double C_webuserDouble; public double C_cashDouble; public double C_transferDouble; public double S_webuserDouble; public double S_cashDouble; public double S_transferDouble; TextView cashTxtView; TextView webuserTxtView; TextView transferTxtView; TextView S_cashTxtView; TextView S_webuserTxtView; TextView S_transferTxtView; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.listplaceholder); cashTxtView = (TextView) findViewById(R.id.cashTxtView); webuserTxtView = (TextView) findViewById(R.id.webuserTxtView); transferTxtView = (TextView) findViewById(R.id.transferTxtView); S_cashTxtView = (TextView) findViewById(R.id.S_cashTxtView); S_webuserTxtView = (TextView) findViewById(R.id.S_webuserTxtView); S_transferTxtView = (TextView) findViewById(R.id.S_transferTxtView); ArrayList<HashMap<String, String>> mylist = new ArrayList<HashMap<String, String>>(); JSONObject json = JSONfunctions .getJSONfromURL("http://ldsclient.com/ftp/strtojson.php"); try { JSONArray netfoxlimited = json.getJSONArray("netfoxlimited"); for (inti = 0; i < netfoxlimited.length(); i++) { HashMap<String, String> map = new HashMap<String, String>(); JSONObject e = netfoxlimited.getJSONObject(i); map.put("date", e.getString("date")); map.put("c_web", e.getString("c_web")); map.put("c_bank", e.getString("c_bank")); map.put("c_cash", e.getString("c_cash")); map.put("s_web", e.getString("s_web")); map.put("s_bank", e.getString("s_bank")); map.put("s_cash", e.getString("s_cash")); mylist.add(map); } } catch (JSONException e) { Log.e("log_tag", "Error parsing data " + e.toString()); } ListAdapter adapter = new SimpleAdapter(this, mylist, R.layout.main, new String[] { "date", "c_web", "c_bank", "c_cash", "s_web", "s_bank", "s_cash", }, new int[] { R.id.item_title, R.id.webuserTxtView, R.id.transferTxtView, R.id.cashTxtView, R.id.S_webuserTxtView, R.id.S_transferTxtView, R.id.S_cashTxtView }); setListAdapter(adapter); final ListView lv = getListView(); lv.setTextFilterEnabled(true); lv.setOnItemClickListener(new OnItemClickListener() { public void onItemClick(AdapterView<?> parent, View view, int position, long id) { @SuppressWarnings("unchecked") HashMap<String, String> o = (HashMap<String, String>) lv .getItemAtPosition(position); Toast.makeText(Main.this, "ID '" + o.get("id") + "' was clicked.", Toast.LENGTH_SHORT).show(); } }); resultTxt = (EditText) findViewById(R.id.editText1); resultTxt.setOnClickListener(new View.OnClickListener() { public void onClick(View arg0) { // TODO Auto-generated method stub resultTxt.setText(""); } }); resultTxt.addTextChangedListener(new TextWatcher() { public void afterTextChanged(Editable arg0) { // TODO Auto-generated method stub String text; text = resultTxt.getText().toString(); if (resultTxt.getText().length() > 5) { calculateSum(C_webuserDouble, C_cashDouble, C_transferDouble); calculateSunrise(S_webuserDouble, S_cashDouble, S_transferDouble); } else { } } public void beforeTextChanged(CharSequence s, int start, int count, int after) { // TODO Auto-generated method stub } public void onTextChanged(CharSequence s, int start, int before, int count) { // TODO Auto-generated method stub } }); } private void calculateSum(Double webuserDouble, Double cashDouble, Double transferDouble) { String Qty; Qty = resultTxt.getText().toString(); if (Qty.length() > 0) { double QtyValue = Double.parseDouble(Qty); double cashResult; double webuserResult; double transferResult; cashResult = cashDouble * QtyValue; webuserResult = webuserDouble * QtyValue; transferResult = transferDouble * QtyValue; DecimalFormat df = new DecimalFormat("#.##"); String cashResultStr = df.format(cashResult); String webuserResultStr = df.format(webuserResult); String transferResultStr = df.format(transferResult); cashTxtView.setText(String.valueOf(cashResultStr)); webuserTxtView.setText(String.valueOf(webuserResultStr)); transferTxtView.setText(String.valueOf(transferResultStr)); // cashTxtView.setFilters(new InputFilter[] {new // DecimalDigitsInputFilter(2)}); } if (Qty.length() == 0) { cashTxtView.setText(String.valueOf(cashDouble)); webuserTxtView.setText(String.valueOf(webuserDouble)); transferTxtView.setText(String.valueOf(transferDouble)); } } private void calculateSunrise(Double webuserDouble, Double cashDouble, Double transferDouble) { String Qty; Qty = resultTxt.getText().toString(); if (Qty.length() > 0) { double QtyValue = Double.parseDouble(Qty); double cashResult; double webuserResult; double transferResult; cashResult = cashDouble * QtyValue; webuserResult = webuserDouble * QtyValue; transferResult = transferDouble * QtyValue; DecimalFormat df = new DecimalFormat("#.##"); String cashResultStr = df.format(cashResult); String webuserResultStr = df.format(webuserResult); String transferResultStr = df.format(transferResult); S_cashTxtView.setText(String.valueOf(cashResultStr)); S_webuserTxtView.setText(String.valueOf(webuserResultStr)); S_transferTxtView.setText(String.valueOf(transferResultStr)); } if (Qty.length() == 0) { S_cashTxtView.setText(String.valueOf(cashDouble)); S_webuserTxtView.setText(String.valueOf(webuserDouble)); S_transferTxtView.setText(String.valueOf(transferDouble)); } } } and I am getting following error on logcat 08-28 15:04:12.839: E/AndroidRuntime(584): Uncaught handler: thread main exiting due to uncaught exception 08-28 15:04:12.848: E/AndroidRuntime(584): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.mokshya.jsontutorialhos.xmltest/com.mokshya.jsontutorial.Main}: java.lang.NullPointerException 08-28 15:04:12.848: E/AndroidRuntime(584): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2401) 08-28 15:04:12.848: E/AndroidRuntime(584): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2417) 08-28 15:04:12.848: E/AndroidRuntime(584): at android.app.ActivityThread.access$2100(ActivityThread.java:116) 08-28 15:04:12.848: E/AndroidRuntime(584): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1794) 08-28 15:04:12.848: E/AndroidRuntime(584): at android.os.Handler.dispatchMessage(Handler.java:99) 08-28 15:04:12.848: E/AndroidRuntime(584): at android.os.Looper.loop(Looper.java:123) 08-28 15:04:12.848: E/AndroidRuntime(584): at android.app.ActivityThread.main(ActivityThread.java:4203) 08-28 15:04:12.848: E/AndroidRuntime(584): at java.lang.reflect.Method.invokeNative(Native Method) 08-28 15:04:12.848: E/AndroidRuntime(584): at java.lang.reflect.Method.invoke(Method.java:521) 08-28 15:04:12.848: E/AndroidRuntime(584): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:791) 08-28 15:04:12.848: E/AndroidRuntime(584): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:549) 08-28 15:04:12.848: E/AndroidRuntime(584): at dalvik.system.NativeStart.main(Native Method) 08-28 15:04:12.848: E/AndroidRuntime(584): Caused by: java.lang.NullPointerException 08-28 15:04:12.848: E/AndroidRuntime(584): at com.mokshya.jsontutorial.Main.onCreate(Main.java:111) 08-28 15:04:12.848: E/AndroidRuntime(584): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1123) 08-28 15:04:12.848: E/AndroidRuntime(584): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2364)

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  • how to recieve text sms to specific port..

    - by Umesh
    recieve text sms to specific port.. I have been looking for an answer to this question but but to no avail. This question has been popped a few times but nobody seems to have a clear answer. my code is as follows.. --MANIFEST FILE-- <receiver android:name=".SMSRecieve" android:enabled="true" <intent-filter <action android:name="android.intent.action.DATA_SMS_RECEIVED"/ <data android:scheme="sms" / <data android:host="localhost" / <data android:port="15005" / </intent-filter </receiver --SMS sending method-- String messageText = msgTxt.getText().toString(); short SMS_PORT = 15005; SmsManager smsManager = SmsManager.getDefault(); smsManager.sendDataMessage("5556", null, SMS_PORT, messageText.getBytes(), null, null); --Broadcast Reciever code-- static final String ACTION = "android.intent.action.DATA_SMS_RECEIVED"; //static final String ACTION = "android.provider.Telephony.SMS_RECEIVED";(tried this too, but failed) if (intent.getAction().equals(SMSNotifyExample.ACTION)) { ...do some work.. } I also tried to replace android:name to "android.provider.Telephony.SMS_RECEIVED" but the result is the same. my application does not recieve the SMS on the specified port. Once i remove the following line its works fine <data android:scheme="sms" / <data android:host="localhost" / <data android:port="15005" / could you suggest me what am i missing??

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  • Weird onclick behavior of images on home screen widget

    - by kknight
    I wrote a home screen widget with one image on it. When the image is clicked, browser will be opened for a url link. Generally, it is working. But a weird thing is that, when I click background, then click the picture, the browser will not be open. Until I click the second time on the picture, the browser opens. The steps to reproduce is below: Click on the home screen widget background. Click on the image on the home screen. The browser is not opened. Click on the image again. The browser is opened. If I didn't click on the background, the image will react to click very well, i.e. browser will be open when the image is clicked the first time. The widget XML file is as below: <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/widget" android:layout_width="320dip" android:layout_height="200dip" android:background="@drawable/prt_base" > <ImageView android:id="@+id/picture1" android:layout_width="134dip" android:layout_height="102dip" android:layout_marginLeft="62dip" android:layout_marginTop="6dip" android:scaleType="center" android:src="@drawable/picture1" /> </RelativeLayout> The code to set OnClick on the picture1 ImageView is as below: defineIntent = new Intent(Intent.ACTION_VIEW, Uri .parse("http://www.google.com")); pendingIntent = PendingIntent .getActivity(context, 0 /* no requestCode */, defineIntent, 0 /* no flags */); updateViews.setOnClickPendingIntent( picId, pendingIntent); Anyone knows what's wrong? Thanks.

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  • Werid onclick behavior of images on home screen widget

    - by kknight
    I wrote a home screen widget with one image on it. When the image is clicked, browser will be opened for a url link. Generally, it is working. But a weird thing is that, when I click background, then click the picture, the browser will not be open. Until I click the second time on the picture, the browser opens. The steps to reproduce is below: Click on the home screen widget background. Click on the image on the home screen. The browser is not opened. Click on the image again. The browser is opened. If I didn't click on the background, the image will react to click very well, i.e. browser will be open when the image is clicked the first time. The widget XML file is as below: <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/widget" android:layout_width="320dip" android:layout_height="200dip" android:background="@drawable/prt_base" > <ImageView android:id="@+id/picture1" android:layout_width="134dip" android:layout_height="102dip" android:layout_marginLeft="62dip" android:layout_marginTop="6dip" android:scaleType="center" android:src="@drawable/picture1" /> </RelativeLayout> The code to set OnClick on the picture1 ImageView is as below: defineIntent = new Intent(Intent.ACTION_VIEW, Uri .parse("http://www.google.com")); pendingIntent = PendingIntent .getActivity(context, 0 /* no requestCode */, defineIntent, 0 /* no flags */); updateViews.setOnClickPendingIntent( picId, pendingIntent); Anyone knows what's wrong? Thanks.

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  • Icons in menu are smaller than they should be

    - by martinpelant
    Hello I have a little problem. All the icons in my apk are smaller than the same icons in other apps (Gmail etc.) This is how it looks like in my apk and this is the same icon in Gmail.apk. I have copied these icons directly from SDK to the specific folders for hdpi, mdpi and ldpi. Here is an example of a hdpi icon I use and my menu.xml <?xml version="1.0" encoding="utf-8"?> <menu xmlns:android="http://schemas.android.com/apk/res/android"> <item android:id="@+id/refresh" android:title="@string/refresh" android:icon="@drawable/ic_menu_refresh" /> <item android:id="@+id/add" android:title="@string/add" android:icon="@drawable/ic_menu_add" /> <item android:id="@+id/login" android:title="@string/account" android:icon="@drawable/ic_menu_login" /> </menu> Does anybody know how to make these icon have the same size as in other apk's? I have tried the asset studio with no effect. UPDATE: If I reference an icon directly from android (android:drawable) then it has normal size. However not all icons can be referenced.

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  • UDK: Error, Unrecognized member 'OpenMenu' in class 'GameUISceneClient'

    - by Ricket
    Upon compiling, I am getting the following error: C:\UDK\UDK-2010-03\Development\Src\FixIt\Classes\ZInteraction.uc(41) : Error, Unrecognized member 'OpenMenu' in class 'GameUISceneClient' Line 41 is the following: GetSceneClient().OpenMenu("ZInterface.ZNLGWindow"); But when I search for OpenMenu, I find that it is indeed defined in GameUISceneClient.uc of the UDK: Line 1507: exec function OpenMenu( string MenuPath, optional int PlayerIndex=INDEX_NONE ) It looks like I have everything correct. So what's wrong? Why can't it find the OpenMenu function?

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  • UDK "Error, 'DefaultMesh': Bad command or expression"

    - by Ricket
    I'm porting UT3 code to UDK, and I am getting the following compile error with the UDK compiler: C:\UDK\UDK-2010-03\Development\Src\FixIt\Classes\ZPawn.uc(25) : Error, 'DefaultMesh': Bad command or expression The ZPawn class extends UTPawn. Line 25 is the following: DefaultMesh = SkeletalMesh(DynamicLoadObject(ZBotOwner(Owner).MeshToUse, class'SkeletalMesh')); Where did DefaultMesh go in UDK?

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