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  • Is it possible to write vertically in a textview in android?

    - by Sephy
    LEts say you have a normal textview, with "Stackoverflow" written in it, I would like to know if it it possible to rotate the textview about -90°, to have the S at the bottom and the W at the top of the screen? of course, i could write my text in an image, rotate it and use it that way, but im interested in text right now. thank you

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  • android: how do i open another app from my app?

    - by mtmurdock
    I understand how to use intents and startActivity() when opening another activity within my own app, but how do you start a different app? specifically: -how do you determine if the user has the needed app installed on their device? -how do you start that app? -how do you pass parameters to that app? -how do you find all this info out for a specific app (say Adobe reader, or google maps)?

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  • jQuery .die isnt killing an attached event?

    - by adam
    Hi I've just started experimenting with .live and .die and having some great results but one thing isn't working. I've been tinkering with firebugs console to try out my written code live to see if i can figure out the reason why .die isn't killing off an attached event. First if i do this //attach ajax submission $('a[href$=edit]').live("click", function(event) { $.get($(this).attr("href"), null, null); return false; }); Then as expected when I click on a link the ajax fires off and my server side code injects a form for inline editing. But sometimes I want to disable this behaviour and also make the link unclickable so I do the following //unbind ajax form creation when we click on a link, then disable its semantic behaviour $('a[href$=edit]').die("click").click( function(){ return false; } ); which works but if then try to remove this and restore that ajax goodness with the code below it doesn't work, Instead the link remains unclickable. I cant figure out why? Can anyone help? //remove any previous events from the links $('a[href$=edit]').die(); //attach ajax submission $('a[href$=edit]').live("click", function(event) { $.get($(this).attr("href"), null, null); return false; });

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  • What is the best way to do multiple listviews in android?

    - by Nicos
    Hi all, i am writing a software that i have to drill down on content a lot. For example when the program starts a listview is displayed. When user clicks on an item, then a second listview must be displayed. For example: Select Continent Select Country Select State Select City Select Address What is the best way to do this (less memory, faster, easier to code etc)? To create multiple listviews with multiple adapters? Or 1 listview with multiple Adapters? Lists are loaded from an external XML File. So far i am creating a new adapter and setting it to the listview. How do i create a second listview and after clicking on 1st listview displaying the second one, with animation. Any examples? Extend my class to ListActivity or Activity? Best regards and thanks for helping, Nicos

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  • What is the most performant 2D graphics engine for use with Android?

    - by nbolton
    I have managed to make a hello world JBox2D application, and it works (I have some bouncing balls). However, I just read a comment on a forum post, which claims that JBox2D produces a lot of garbage, and so causes animation to be poor. Is this true? If yes, then what other 2D engines are available to me? I would very much like to use a physics engine for my 2D game, even if it's just a very simple one.

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  • How To Upgrade the Android Application from the internet?

    - by uday
    Hi All, I have an application installed on my device. From my application i need to check whether any update is available in the Website or not, if any update is available, then i need to download the application and need to install it my device. How can i achieve this through my application? How do i uninstall application through my application code and how to install the new upgraded .apk in the device? Any help is appreciated.. Cheers Uday

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  • Android while getting HTTP response to file how to know it wasn't fully loaded?

    - by Stan
    I'm using this approach to store a big-sized response from server to parse it later: final HttpClient client = new DefaultHttpClient(new BasicHttpParams()); final HttpGet mHttpGetRequest = new HttpGet(strUrl); mHttpGetRequest.setHeader("Content-Type", "application/x-www-form-urlencoded"); FileOutputStream fos = null; try { final HttpResponse response = client.execute(mHttpGetRequest); final StatusLine statusLine = response.getStatusLine(); lastHttpErrorCode = statusLine.getStatusCode(); lastHttpErrorMsg = statusLine.getReasonPhrase(); if (lastHttpErrorCode == 200) { HttpEntity entity = response.getEntity(); fos = new FileOutputStream(reponseFile); entity.writeTo(fos); entity.consumeContent(); fos.flush(); } } catch (ClientProtocolException e) { e.printStackTrace(); lastHttpErrorMsg = e.toString(); return null; } catch (final ParseException e) { e.printStackTrace(); lastHttpErrorMsg = e.toString(); return null; } catch (final UnknownHostException e) { e.printStackTrace(); lastHttpErrorMsg = e.toString(); return null; } catch (IOException e) { e.printStackTrace(); lastHttpErrorMsg = e.toString(); } finally{ if (fos!=null) try{ fos.close(); } catch (IOException e){} } now how could I ensure the response was completely received and thus saved to file? Assume client's device lost Internet connection while this code was running. So the app received only some part of real response. And I'm pretty sure it happens cuz I got parsing exceptions like "tag not closed", "unexpected end of file" etc. So I need to detect somehow this situation to prevent code from parsing partial response but can't see how. Is it possible at all and how to do it? Or has it has to raise IOException in such cases?

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  • Can I user a layout on the android to render just part of an image at a time?

    - by gamernb
    I have an image file that has all the character sprites that I will be using in a game, and I want to make a layout that will allow the user to cycle through each image to be able to pick which one they want. So, I have one large image, and I need to render just a small (32 x 32) section of it at a time. Is that possible with the layouts or will I have to use a canvas, and manually do most of this?

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  • Can An Android Appliction Be Launched Without a Main Activity?

    - by Androider
    I have verified that an App does not need a Main Activity, and in fact does not need any activities. Thanks for the responses on this. But here is another question. Is there any way to launch an application without a main activity declared? If the answer is no, then I have a follow up, can the MAIN action be removed from the application at runtime after launch so that the app no longer has a MAIN activity after launch? Or even can the activity itself be entirely removed from the application at runtime if it is no longer needed. Thanks.

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  • How to add parameters to a HTTP GET request in Android?

    - by groomsy
    I have a HTTP GET request that I am attempting to send. I tried adding the parameters to this request by first creating a BasicHttpParams object and adding the parameters to that object, then calling setParams( basicHttpParms ) on my HttpGet object. This method fails. But if I manually add my parameters to my URL (i.e. append '?param1=value1&param2=value2') it succeeds. I know I'm missing something here and any help would be greatly appreciated. Thanks in advance, groomsy

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  • ASP .NET Dynamically adding EventHandlers to button on Page_Load. EventHandler's do not fire the fir

    - by John
    Background: I am customizing an existing ASP .NET / C# application. It has it's own little "framework" and conventions for developers to follow when extending/customizing its functionality. I am currently extending some of it's administrative functionality, to which the framework provides a contract to enforce implementation of the GetAdministrationInterface() method, which returns System.Web.UI.Control. This method is called during the Page_Load() method of the page hosting the GUI interface. Problem: I have three buttons in my GUI, each of which have been assigned an Event Handler. My administration GUI loads up perfectly fine, but clicking any of the buttons doesn't do what I expect them to do. However, when I click them a second time, the buttons work. I placed breakpoints at the the beginning of each event handler method and stepped through my code. On the first click, none of the event handlers are triggered. On the second click, they are triggered. Any ideas? Example of Button Definition Button btn = new Button(); btn.Text = "Click Me Locked Screen"; bth.Click += new EventHandler(Btn_Click); Example of Event Handler Method Definition void Btn_Click(object sender, EventArgs e) { // Do Something }

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  • Large memory chunk not garbage collected

    - by Niels
    In a hunt for a memory-leak in my app I chased down a behaviour I can't understand. I allocate a large memory block, but it doesn't get garbage-collected resulting in a OOM, unless I explicit null the reference in onDestroy. In this example I have two almost identical activities that switch between each others. Both have a single button. On pressing the button MainActivity starts OOMActivity and OOMActivity returns by calling finish(). After pressing the buttons a few times, Android throws a OOMException. If i add the the onDestroy to OOMActivity and explicit null the reference to the memory chunk, I can see in the log that the memory is correctly freed. Why doesn't the memory get freed automatically without the nulling? MainActivity: package com.example.oom; import android.app.Activity; import android.content.Intent; import android.os.Bundle; import android.view.View; import android.view.View.OnClickListener; import android.widget.Button; public class MainActivity extends Activity implements OnClickListener { private int buttonId; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); System.gc(); Button OOMButton = new Button(this); OOMButton.setText("OOM"); buttonId = OOMButton.getId(); setContentView(OOMButton); OOMButton.setOnClickListener(this); } @Override public void onClick(View v) { if (v.getId() == buttonId) { Intent leakIntent = new Intent(this, OOMActivity.class); startActivity(leakIntent); } } } OOMActivity: public class OOMActivity extends Activity implements OnClickListener { private static final int WASTE_SIZE = 20000000; private byte[] waste; private int buttonId; protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); Button BackButton = new Button(this); BackButton.setText("Back"); buttonId = BackButton.getId(); setContentView(BackButton); BackButton.setOnClickListener(this); waste = new byte[WASTE_SIZE]; } public void onClick(View view) { if (view.getId() == buttonId) { finish(); } } }

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