Android :: Black Screen While Retrieving Result From Webservices
Jun 9, 2010
I am using following webservices for retrieving data from server
server side:.net
client side:ksoap2
whenever activity start, onCreate i am using spinner for displying data returned by the webservices
when this activity start it showing black screen after lunching the activity .i found black screen is coming when activity connecting to webservices
How to resolve this?
MyCode...
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Sep 22, 2010
i regrettably dropped my HTC desire recently and cracked the screen. I have a lot of numbers saved to the phone that i would like to get, and if possible all the SMS messages that were sent. is it possible to retrieve this data by using the data cable plugged in to my computer? BTW have a new desire now claimed thru insurance
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Apr 30, 2012
I have a motorola Droid that has a screen that won't light up. It is still responsive to touch commands (at least I can feel the haptic feedback when I unlock the phone).
I've moved on to a new phone. However, I have the birth of my son on video on the phone(the tasteful portion ). The video is on the internal memory of the phone, yet I'm unable to mount the phone to my PC because I can't see what to touch(I've tried guesstimating where to touch without success). I did save the video to an old pc HD, but that HD went kaput about a year ago.
How to retrieve files from internal memory in which you can't mount the phone by typical means?
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Jun 7, 2010
I noticed that when i type a text msg that the screen seems to dim slightly and then come back. Is this a result of the auto brightness feature?
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Oct 29, 2013
I have a broken Galaxy 3 phone where the screen suddenly stopped functioning with a total blackout so I can't use the phone at all. There is no problem getting the phone fixed within a couple of days but the problem is I want to save all my messages, contacts and other data, especially one conversation text message thread that has gone on for about a year, to my pc. I want the information to be able to be viewed independently on my computer like I read emails etc. and then I can store it on a portable hard drive by copy and paste.
Samsung kies doesn't seem to allow for this. I can back up the phone apparently but the info can only be read by another similar phone so it is restricting how you see your own information. I want the information on my computer without the need of another similar phone because what if I decide to buy a totally different phone that has software that's not compatible.
The shop representing Samsung who will fix the phone said that everything gets wiped and they won't even have Kies on their computers because they think its unstable software. Ideally it would be great if there was some kind of software for my computer that enabled it to read all the info on the phone as if the phone was a flash drive connected by USB and then I could simply copy and paste across from phone to computer. The phone is recognised by the computer through the USB but obviously it can't read inside the folders on the phone which just show as empty. How to get the results I want?
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Feb 5, 2010
I am developing the android application. which is going to update the content from android to the web(php webservice). Can anyone give me the sample code for my reference.
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Oct 18, 2010
can i do it? I just wanna make SELECT/INSERT into a remote database with my android phone application, i think it have to be easy but i can't find the way. I only find people that tell i have to make a webservice os romething like that, but that is another world for me, and i can't put a webservice in the database host.
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Nov 12, 2010
I have an android APP. I need to connect to a remote D.B. on the internet. All i know is that i have to use a Web Service, installed on the remote DB server.With my Android APP i have to connect to the web service, and the web service will do the logical operations to get the necesary data from the D.B. and will send them to me. the web service is not a problem, i have a friend that will do it (i have no idea about web services), but i dont know how i have to do the connexion with the Web Services, and also i dont know how have to be the functions of the Web Service.I have searched for tutorials on google but i can't find a good tutorial for beginners like me.can someone give me a little help? for example, a good tutorial for beginners connecting android to a remote DB with webservices?
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Nov 23, 2010
Provide me code for connecting webservices in android by using HttpClient step by step. also mentioned method name how to set.
Suppose My Method name is : ActiveSurveyList() and URL: http://.....
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Aug 9, 2010
When i fire up my youtube app, i get a quick black screen flash and it goes back to home screen. The app doesnt launch at all. It was working just fine for several months, all of a sudden it started doing this.
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Dec 2, 2010
This was reported in the other thread about X8 Issues, but thought to start a new one to gather feedback from users. It's about the ''black screen'' freezing issue encountered by some users. I have had this several times since owning the phone for a few weeks, so it is a recurring issue. Problem: The phone hangs or appears to be shut down or become unresponsive suddenly. Pressing the hardware buttons doesn't help as the phone doesn't react at all. Solution: Take out cover and battery and restart.Observations: From my own observations, it's not actually a shutdown but a major freezing/hanging. Sometimes when it happens, I can still see vague shades of the display at an angle. After leaving the phone for a while in the pocket, the phone comes back to normal again. Not sure if this is true for all users with this problem. Anyway, gathering more feedback to see how prevalent the problem is, to evaluate whether I should take it to the SE service centre, or whether doing so will help at all.
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Oct 3, 2010
I have a class A which is responsible for fetching data from web services in android and i have a class B which is responsible for creating and rendering List View in android
Now how can i populate data on List View once the data is fetched successfully.
well i have following options but which one is better .. (if someone has anyother then i don't mind)
1) Create an intent of Class B and
pass the data that need to be
populated
2) Creating a static method int Class
B which will accept the data as an
argument and call setListAdapter
in class B i have used Holder Patter to create ListActivity. ( for reference List14.java in samples of Android )
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Oct 13, 2010
What are the best practices to design webservices for mobile (particularly Android) apps?
Personally I'm focused on using JSON (and not XML) and I try to make it the less verbose I can. But I'm probably missing a lot of things.
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Jun 23, 2010
1) After I make a call, the screen goes black in a matter of seconds. I'm typically using a headset when I notice this. To end the call (or enter numbers in a call menu) I need to press the sleep button to get the screen to light up again. This is a pain in the a$$.I have the screen timeout set for 2 mins.
2) About once or twice a day the home screen will lock where I can't press anything. I need to reboot to fix.
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Sep 9, 2010
Sometimes when I hit the screen/power button the screen will stay black and i can see the menu bar up top fine but all else is black. If I hit the home key then all lights up fine. Then sometimes Ill hit the button and it works fine.
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Aug 23, 2012
i have to develop the app is insert the database from spinner in mysql database via soap webserices in android application...
i have use below webservice code:
Code:
package com.xcart;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
[Code]...
this is my android source code for spinner:
Code:
public class InsertionExample extends Activity{
private final String NAMESPACE = "[URL]...";
private final String URL =
[Code]....
my logcat window says following error:
Quote:
08-23 02:48:40.030: D/AndroidRuntime(4055): Shutting down VM
08-23 02:48:40.030: W/dalvikvm(4055): threadid=1: thread exiting with uncaught exception (group=0x4001d800)
08-23 02:48:40.060: E/AndroidRuntime(4055): FATAL EXCEPTION: main
[Code]...
what error is occurred here.give me solution...
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Dec 2, 2009
I installed panda home just now and i get a black screen. I tried a battery pull, phone reset, etc. I cant get past the black screen. Is there any way I can boot in safe more or something? I literally cant use my phone, all I see is the task bar at the top and no buttons.
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Mar 23, 2010
i opened my application after i am not doing any kind of operation i leave the mobile 5 min after 5 min when i touch the my application it is showing black screen.is there any way to avoid this idle state.
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Jul 2, 2010
My PreferenceActivity contains a nested PreferenceScreen in another PreferenceScreen and I'm applying a theme to my PrefenceActivity that changes the background color. However when I open the nested PreferenceScreen I get a black background and I cannot see the options.This happens with android 2.1 , but it does not happen with android 1.6.Any ideas on how this can be corrected?
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Jan 25, 2012
am developed one app..here am using json webservices for fetching data from database...Here am used dis coding part:
<?php
$r=mysql_connect("localhost","root","");
mysql_select_db("xcart",$r);
[Code]....
dis is successfully worked in localhost..then am connecting my coding means its displayederror in logcat..the error is json array exception not converted to json array ..how it is diplayed..i konw my coding part having error..so ly it is displayed...
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May 3, 2009
Can anyone confirm the fact that webview is broken in the 1.5 sdk? Either that, or update the code page on the google developer side as neither that code nor any other (including my previously working webview code) is showing anything but a blank black screen.
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Aug 13, 2009
in my app, I came into an Activity from the pre Activity's UI (such as:click a TextView which has added OnClickListener), like this way, after several times, I came into a deeper Activity. I left it for a while (such as left away) , when I came back ,I returned the Activity before the last Activity. then I got a black screen.
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May 22, 2009
I have a slideshow function in my app and if the number of images is more, the phone locks (screen goes black) in the middle of the slideshow. How can I avoid this in my app?
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Feb 23, 2010
I have T-mobile touch with android on it. I want to use Barcode scanner, but when i turn it on, the screen is black, and all i see is that red line on the center. It's like my camera is not turning on. I also tried on my cousins phone (exactly the same) and the Barcode scanner app worked fine. I tried many times all over again but the problem is the same everytime. BTW when i try to take photo my camera is working fine.
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Jul 17, 2009
There is an activity which fetches xml data from the network, parses it and displays it in the UI. When the user clicks on any of the link or button on the screen I call startActivity with new Intent object of the same activity. I do this to have the activity on the history stack. Previously I just called setContentView of the activity without starting the activity again, but with this I cannot have the previous page in the history stack.Now the problem is - each screen normally takes up to 20 seconds to fetch content, parse and display. when the startActivity is called the screen becomes black until the next UI is rendered. I wanted to keep the previous screen showing until the next page loads.Please tell me 1. Is there a way to do this? 2. Is it good to start the activity again for each page. If not how to have the previous page in the history stack so that I can use the Android's back button.
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Mar 16, 2010
I'm trying the camera preview
This is my code and it doesn't throw any error, but the screen still black, any ideas?
this.setContentView(R.layout.camerapreview);
SurfaceView cameraSurface = (SurfaceView)findViewById(R.id.cpPreview);
SurfaceHolder holder = cameraSurface.getHolder();
holder.addCallback(this);
holder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
this.camera = Camera.open();
this.camera.setPreviewDisplay(holder);
this.camera.startPreview();}
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Feb 2, 2010
I have a listview that when you click on an item it will take you to a WebView that displays some static formatted text associated with that list entry.
I had it all working with a TextView but I wanted to be able to use HTML formatting for the text and figured the WebView was the way to go. Right now it is just supposed to display a generic link for testing purposes but when the viewContent intent starts it just goes to a black screen. I can go back and pick another entry and it also just shows the black screen.
I'm not sure what code you are going to want to see so here's the viewSection class file and the viewsection.xml layout.
viewSection.java:
CODE:..............
viewsection.xml:
CODE:..................
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Feb 5, 2014
My Tablet shows black screen after a while animation android logo and no more work. So I tried factory reset. But factory reset doesn't proceed to recover menu. It shows only factory reset logo (Android logo with red triangle) like screenshot.
My tab has only 3 button (power, Volume up and down). I tried both of them. But the logo doesn't move. How to factory reset?
My tab Configuration:
Duocore M7200 7inch, 1.2GHz, 512MB DDR3
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Jul 8, 2010
when i click on talk icon it goes to a black screen as if it was gonna launch google talk but then goes right back to main menu screen.
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Sep 22, 2010
I've a lot of initialization code in my main activity's onCreate(). When I launch my game, the screen goes black for a long time, then my game appears. I did logged some message at the start and end of onCreate() and found that onCreate() is executing its code while the screen is black. Sometimes the screen goes black for too long and phone shows a popup dialog prompting me to choose between Force close/Wait. Then when onCreate() is completed, my game appears. Choosing 'Wait' then dismiss the dialog.
I tried using progress dialog described in this article:
http://developer.android.com/guide/topics/ui/dialogs.html#ProgressDialog
But it doesn't work. The screen goes black for the same amount of time even after I use the progress dialog.
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