Android :: Hello World Not Working - No Text Is Displayed On The Emulator?
Sep 2, 2010
I am a complete novice to Android, just installed the SDK and ADT Eclipse plugin. What I was trying to do is a simple "Hello, World" program. I am using the 2.2 (8) API.
Here's my code:
CODE:..........
My Eclipse console:
CODE:..................
And on my emulator (5554:Android) ... there is nothing displayed but blank screen with a cool fonted "Android" imprint.
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Sep 15, 2010
I am developing an android application using phonegap and javascript code. I need a listbox with four options displayed at once. My html code similar to one listed below, always shows up as a combobox on the emulator inspite of the size parameter being greater than one. Can someone guide how to get a listbox working on the emulator. code...
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Apr 28, 2010
I'm new in Android. I'm starting with HelloWorld program, but I can't run it on the Emulator. I'm using newest version of Eclipse and Android SDK. I also set up development environment as follows instructions on http://developer.android.com/index.html.Does anybody have advice for me?
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Jan 27, 2012
I'm just getting started with Android programming, using Eclipse 3.7.1 and ADT 16.0.1. Naturally I started with the usual Hello World program. It runs fine on a physical device, but not on the emulator. When I run it on an AVD, here's what the console window says:
[2012-01-27 17:02:29 - HelloAndroid] ------------------------------
[2012-01-27 17:02:29 - HelloAndroid] Android Launch!
[2012-01-27 17:02:29 - HelloAndroid] adb is running normally.
[2012-01-27 17:02:29 - HelloAndroid] Performing com.example.helloandroid.HelloAndroid activity launch
[2012-01-27 17:02:42 - HelloAndroid] Launching a new emulator with Virtual Device 'AVD_4.0.3'
[2012-01-27 17:02:51 - Emulator] emulator: warning: opening audio input failed
[2012-01-27 17:02:51 - Emulator]
[2012-01-27 17:02:54 - Emulator] emulator: WARNING: Unable to create sensors port: Unknown error
That's all. The emulator starts up and appears to be working OK, but the app never shows up on it.
I can also start the AVD from the AVD manager window, and again it starts and runs OK. But if I try to run my app, the emulator doesn't show up in the list of running Android devices in the device chooser -I assume it should, since there's a column headed "AVD name".
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Aug 25, 2010
I have set up Eclipse with the Android plug-in, and the Android SDK. But I can't get my simple Hello World application to run in the emulator.
I am going through this Hello World tutorial. I have Installed a Platform, Created an AVD, Created a New Android Project, and Constructed the UI, but when I hit Run (and select Android Application from the menu that pops up), the Emulator starts up. It takes a while on the "ANDROID_" screen, then shows the shimmering Android logo for a while. But then it goes to the "unlock" screen. When I slide the lock to the right, it opens the Android home screen. I try looking for my app in the applications lists, but it is nowhere to be found.
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Oct 3, 2010
I am totally new to Android, and I am following this tutorial. My problem is that the Android Emulator does not show the Hello World text, it just displays "ANDROID" on the center of the screen and no buttons works. Is this a know problem, how do I get it fixed?
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Jul 28, 2010
I am trying to built my first app in Android
Problem :helloandroid application is not getting displayed in emulator menu . but this app is getting instaled , i am able to uninstall the application from emulator. settings>applications>manage applications>com.helloandroid its size is showing 20.00kb
CODE:............................
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Mar 31, 2010
Ive downloaded World War and for some reason i can not get it to work. Just comes up like i don't have an Internet connection. Any one else know how to fix this.
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Jun 17, 2009
I have a database in Excel and I want to import it into SQLlite so I can use its contents in spinners and other features of my application. I have done the tutorials and surfed online but no indications at all for my specific problem.
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Aug 10, 2013
I recently created a new contact in my phone, entered their name, and messaged them with the default messenger. I then realized I entered the wrong phone number so I deleted the contact then created a new one using the same name but the correct phone number and texted them. Now, when they text me, it shows up in its own thread as if it came from the incorrect number I originally entered but when I reply I have to do so in a different thread that displays the correct number. In effect, this contact now has one thread for their incoming messages and one thread for their outgoing messages.
I've tried pulling my battery and SIM but that did nothing. I've tried deleting either or both of the threads and nothing. I've tried deleting them and pulling the battery and SIM afterward and nothing. I've found solutions for merging existing threads but that doesn't work at all for any new messages that are sent or received. It's a bit tedious having to go back and forth between threads just to talk to one person.
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Nov 1, 2009
Our application displays widgets that update every minute through Alarm. It works fine under 1.5 and 1.6 but since 2.0, widget is not displayed at all. Only initial layout is displayed.
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Jul 21, 2009
I've updated to 1.5 release 3 on both Ubuntu 8.04 and Windows XP Pro using Eclipse and latest ADT Plugin (0.9 Final). This snippet of code is still not working on the emulator whereas it was before 1.5. What am I missing here? The User Permissions are set to ACCESS_FINE_LOCATION and the minimal API to 3 and level 3 AVD. I set The Log.v still says the Location is null.
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState); setContentView(R.layout.main);
LocationManager locmgr = (LocationManager)getSystemService(this.LOCATION_SERVICE);
if(locmgr == null) Log.v("err","Couldn't get locmgr");
Location loc = locmgr.getLastKnownLocation(LocationManager.GPS_PROVIDER);
if(loc == null) Log.v("err","loc is null"); }
So is GPS emulation still broken?
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Nov 28, 2009
No matter how many times I re-create the SD card and start the emulator along with SD card the application seems to crash and errors out with the message "The application has stopped working unexpectedly." I am able to run the simple text based Hello World Android application on my emulator successfully and the problem is present for TTS application only.
I followed the steps provided in
http://eyes-free.googlecode.com/svn/trunk/documentation/tutorial/tuto...
but still not able to run the application from the past 3 days.
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Aug 1, 2009
My little apps used to run fine in eclipse and on the android emulator.Then for some reason they stopped working. Now, no new apps or changes will appear on the phone.I have followed the instructions on the FAQ but it doesn't change. Now also if I want to change some code and then re-run it by pressing play, it says: emulator: ERROR: the user data image is used by another emulator.
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Nov 11, 2010
I used AudioRecord on emulator and phone. I found that AudioRecord is not working on phone: 1> the min-buffer-size on simulator is much smaller than phone 2> The audio data I read from phone is all zero.
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Jul 5, 2010
I am trying to run the example as given in the book Professional Android Development by Reto Meier[pg 220], but i am not able to get the address string i always get "No address" . I read about the same prob in this forum, and i tried it in api level 7 but in both 7 and 8 api levels , i am getting the same output, i.e. No address. Also can anyone please tell me that here i have to manually supply the lat and longitude , so it is it possible that to get them automatically?
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Apr 13, 2009
Everything has been working for just about a week and now for some reason the Emulator has stopped working. I am running Vista Ultimate, Intel DualCore E? 4G memory.
Here is the Event Log.
Faulting application emulator.exe Version 0.0.0.0 Time stamp 0x498b7c2d, faulting module emulator.exe, version 0.0.0.0, time stamp 0x498b7c2d, exception code 0xc0000005, fault offset 0x00036070, process id 0x186c, application start time 0x01c9bca07b1f1785.
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May 10, 2010
I'm having problems with the SNESoid emulator. I downloaded some ROM's and unzipped them, I made a folder called 'roms' on my SD card. When I go to open SNESoid it says 'no roms loaded' and then I manually go to menu and open, and go to the folder and it see's the .smc files or whatever and I try to open them and it just takes me to the previous page, which is like the menu page with all my applications. I've tried to Google this problem and I've seen a couple other similar problems but never any solutions. Anyone know?
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Apr 30, 2009
just installed myself a new AVD and set the camera to true, however the camcorder is very unresponsive and seems like it's not working.
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Mar 23, 2009
I just wanted to run a ProgressBar test, as it's my first time using them on the Android. Here's my XML (in a Linear Layout):
<ProgressBar android:id="@+id/progress" android:layout_width="fill_parent"
android:layout_height="25dip" android:indeterminate="false"
android:max="100" android:progress="50" />
When I run the emulator I get a progress bar that glows orange on the left and right end. I also instead tried programmatically setting indeterminate to false, max to 100, and progress to a solid 50. No go. I even tried creating a background worker thread that would update the progress of the bar every half a second. Nothing. I just get two glowing orange ends to my bar (with a blank space in the middle).
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Sep 4, 2009
I am not able to test IM client application on emulator.
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Apr 28, 2010
I am running one web application in android emulator browser in one java script file. I am trying to output some string as console.log("android");
But I didn't got this log using adb logcat even I tried to start adb logcat firstly and then turn the app. But didn't got log message which I used in console.log. Is there any way so I can get my log message.
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Oct 19, 2012
Need getting the Android Emulator working again for my project. It was working great earlier today, but after lunch I ran the program to debug and now have spend 3 hours trying to figure out why the emulator won't launch at all.
After running this I do get an APK and I can install it on my device. However, I would like to use the emulator for testing.
Console
[2012-10-19 19:38:08 - SA] ------------------------------
[2012-10-19 19:38:08 - SA] Android Launch!
[2012-10-19 19:38:08 - SA] adb is running normally.
[2012-10-19 19:38:08 - SA] Performing com.example.sa.MainActivity activity launch
[Code] .....
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Aug 20, 2010
I looked all over the web and in this group for a solution but I don't seem to have any luck. I'm probably not the only developer that needs to try C2DM on the emulator so a solution to this could be quite useful. First of all let me say that I'm running the latest Google APIs 8 rev 2 as AVD which should have all the necessary magic to allow me to run C2DM (it even has all the market components to run the LVL). I tried both Chrome to Phone and Jumpnote and it was impossible to make the C2DM service work. - Chrome to Phone fails when trying to connect from the Android app running on the emulator with a "Error: Unable to connect". On the Chrome to Phone site they recommend that Talk should be tried first and that the Market should be available (none of these come in the emulator image and I'm not sure if I should even try to install them on the emulator). - Jumpnote does not synchronize automatically and gives me an error: "Error calling remote note sync RPC" (when I do a manual sync I can see the docs being synchronized but looks like C2DM, which enables the auto sync, is broken). I also heard a comment that maybe port forwarding via adb could be necessary (but I'm really not sure this makes any sense).
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Apr 5, 2010
am new to this android development. I have index page and am displaying every links in the same page using div concept.Now i want to use the back button for my application i have developed code to handle the div and it is working in the AVD(Andriod Virtual Device 5556) but if i upload the apk into my device it is not working.
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Oct 5, 2010
I currently found out, that my Application developed for Android 1.6 does not work on Android 2.2. I'm quite puzzled about this, because its a very simple Application which almost does nothing. The Expeption I get is like that:
java.lang.RuntimeException: Unable to instantiate application [packagename].AndApp:
java.lang.ClassNotFoundException: [packagename].AndApp in loader
dalvik.system.PathClassLoader[/data/app-private/[packagename]-1.apk]
The weirdest part is, that the Class it is searching for here does not exist and never has. The app itself does nothing than show some text in a textview. In Android 1.6 I dont get this problem and I cant see a reason, it event works in 2.1. The Manifest looks like that:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="[packagename]" android:versionName="1.02" android:versionCode="3">
<application android:label="@string/app_name" android:icon="@drawable/stop_48"
android:description="@string/Description" android:name="@string/app_name">
<activity android:name=".DefaultActivity" android:label="@string/app_name" >
<intent-filter> <action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter> </activity>
<uses-sdk android:minSdkVersion="4" android:targetSdkVersion="4"</uses-sdk>
</manifest>
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Jul 14, 2009
After weeks of trying to get my service to run on boot & an interval via AlarmManager I finally found out the problem. If my workspace is for sdk 1.5, the service never run once. If my workspace is for sdk 1.0, Using the 1.0 Emulator, Not the 1.5 Emulator, it works perfectly. Why is it only working on the old SDK? Is there an additional permission I need?
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Jul 19, 2010
I'm using Eclipse and the Android SDK for Linux. When I start my emulator at the beginning of the day it works fine. Later in the day it's sluggish and still later it won't start at all. This computer runs Debian linux, the testing branch, with 1Gig memory and a two 1.6 Ghz processors. On another machine I have, the emulator works the same at the beginning and end of the day.
It has 500M ram and a single 1.6 Ghz processor. As it turns out I cannot use the second machine for all my daily tasks. How can I get the first machine to work? Is it the number of processors? I cannot figure out how to disable a processor in the emulator. I was looking at the '-qemu' options, but none seems to do the trick. I don't understand the qemu options that well.
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Apr 12, 2009
I have been developing on the windows Android SDK until recently I have moved to the Linux SDK. Once I launch the application from eclipse, I click the 'x' of the emulator window and an empty window persists, whereas this does not happen in the windows. I have to manually kill thru the shell (kill -9 "<emulator process id>") Has anybody faced this problem on ubuntu 8.04, with android SDk 1.1?
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Nov 13, 2009
I'm trying to emulate an Acer AOD250 that has a 1024x600 screen and comes with Android. If I create an AVD with default settings except for resolution of 1024x600 and SDK 3, the emulator does not start. The largest I can get working is 670x600. At larger resolutions, sometimes the emulator starts, but does not complete the boot. Is there a memory setting or something that I can change to allow the emulator to work on a screen this big?
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