Simple Hello World Not Loading In Emulator?
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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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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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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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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Feb 16, 2009
I am working on the Eclipse Emulator and with SDK 1.0 Release 2. What I would like to do is to play a simple C note with with code. Does android provide the necessary interface to produce such note sounds? Is there a sound library and API I can readily use on the device (and emulator)?
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Sep 16, 2009
I've the following code I'm trying to run on emulator ( v 1.5 of OS), but it seems like I can't use the whole canvas! Code...
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Jan 20, 2009
I am trying to create small simple application on emulator. I want to create button and display with some click event. I am not able to use findViewById method with R.id.abc. It always gives error as R.id cannot be resolved.
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Aug 18, 2009
I can't get the emulator to load when running programs from Eclipse 3.4.2.
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Dec 22, 2009
I'm still learning how to use the dev tools. Using MotoDev which is Eclipse, I wrote a basic "hello world" app. When I run the program, the emulator starts up. It took a few restarts of the emulator and Eclipse until my Hello World icon appear in the emulator. I noticed at one point that a status message said it was sending over the .apl file, which is when my app finally appeared in the emulator. I made changes to my code (Hello to Goodbye) and now..I can't figure out how to "send" to changed app to the emulator. The original app is not being replaced with the changes. What do I need to be doing to reload the changed application on to the Android emulator?
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Sep 24, 2009
I just downloaded the android sdk from the adnroid site and followed this tutorial to set it up on netbeans. Everything to seem to have installed fine but whenever i try to run the application this window pops up:What I am assuming it asking me to choose the emulator, but it is not showing up on the list. Is there a reason why?
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Nov 16, 2010
In My application i want to load a webpage by ckicking a TextView. How i can do this?
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Jan 17, 2014
can i get the source code for the simple map display on android emulator?
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Nov 16, 2010
Let me first tell u that i have already searched for how to load an png image into the android emulator I couldnt come up with any clear cut thread that explains the procedure.... that is why, i am creating a new thread here.can some1 please describe it?
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Jun 2, 2010
I read about in the google documents that the 3 folders corresponds to different screen types and that android would select the image from different folders automatically according to the screen type. I read that WVGA will load from drawable-hdpi and HVGA will load from drawable-mdpi. When I tested with 2 emulators both running 2.1, each with HVGA and WVGA. It turns out that they are both reading the image in mdpi. If I deleted the image in mdpi then they read from hdpi. Can someone answer why emulator with WVGA is reading from drawable- mdpi?
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Jul 9, 2010
i created a custom layout where i have a couple of LinearLayout in a ScrollView. Problem is when i set my SetContentView to my custom Layout (when the application starts), the emulator gives an error and force closes! i don't know why. i have tried with another custom layout or set it to main and it seems to work fine.
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Oct 28, 2010
I am trying to simply test my app under a QVGA setting, but 95% of the time when I run the QVGA emulator I created, it loads the resources associated with HVGA. I have custom bitmaps that I include in my app, so it's crucial for me to be able to verify the appearance.Can someone tell me why the emulator is not loading the low density drawables? The drawables in this QVGA emulator are the same exact size as the drawables in the HVGA emulator (not what I want), and yes, I scaled down the pictures before adding them to the LDPI folder (drastically smaller). For no apparent reason, once in a while the emulator will actually load properly and everything displays correctly, but again, this only happens about 5% of the time with no apparent reason for why.
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May 4, 2009
I want to display a fancy 'loading' image at my app's startup time.
The problem: my startup code is mostly GUI related, hence needs to run on UI thread.
Is there a way to do both - that is run UI-related code on UI thread while an image is displayed to the user?
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May 22, 2010
I was hoping that someone here could comment about "real world" 4G performance, I've heard both sides. Some saying it's blazingly fast, others saying its hit or miss with high latencies.I'm in the Seattle area which is supposedly saturated with 4G, I suppose I'll even be happy with 3G speeds, but if anyone can share real world speed 4G speed/latency tests.I'd be most appreciative.
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Apr 8, 2010
Did a search, couldn't find any info.
I'm supposing that this will NOT be a world phone?
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Nov 2, 2009
I've looked through the documentation and I can't seem to figure out how to have the screen blured/greyed when I select an activity that may take a while to load.
This seems to be an Android standard (both the Camera app and the Camcorder app do it when first selected), but I don't see any documentation on it. I even tried looking through the source of these apps on git, but couldn't seem to find it.
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Sep 20, 2010
My Helloworld tutorial sample builds and runs just fine, except it doesn't show the text (i.e. loads apps). The only thing I see is that Emulator (Target 2.2 API level 8) comes up with just the "Android" in it. and then the emulator shows up a locked up screen in a while. Here is output from the console
[2010-09-20 10:36:55 - HelloAndroid] Android Launch!
[2010-09-20 10:36:55 - HelloAndroid] adb is running normally.
[2010-09-20 10:36:55 - HelloAndroid] Performing com.example.HelloAndroid.HelloAndroid activity launch
[2010-09-20 10:36:55 - HelloAndroid] Automatic Target Mode: Preferred AVD 'my_avd' is not available. Launching new emulator.
[2010-09-20 10:37:56 - HelloAndroid] WARNING: Application does not specify an API level requirement!
[2010-09-20 10:37:56 - HelloAndroid] Device API version is 8 (Android 2.2)
[2010-09-20 10:37:56 - HelloAndroid] HOME is up on device 'emulator-5554'
[2010-09-20 10:38:23 - HelloAndroid] Uploading HelloAndroid.apk onto device 'emulator-5554'
[2010-09-20 10:38:27 - HelloAndroid] Installing HelloAndroid.apk.
After I exit the emulator, I get the following errors.[2010-09-20 09:02:24 - DeviceMonitor]Sending jdwp tracking request failed![2010-09-20 09:38:46 - ddms]nulljava.lang.NullPointerException
at com.android.ddmlib.JdwpPacket.writeAndConsume(Jdwp Packet.java:213)
at com.android.ddmlib.Client.sendAndConsume(Client.ja va:573)
at com.android.ddmlib.HandleHello.sendHELO(HandleHell o.java:142)
at com.android.ddmlib.HandleHello.sendHelloCommands(H andleHello.java:65)
at com.android.ddmlib.Client.getJdwpPacket(Client.jav a:670)
at com.android.ddmlib.MonitorThread.processClientActi vity(MonitorThread.java:317)
at com.android.ddmlib.MonitorThread.run(MonitorThread .java:263)
[2010-09-20 09:38:47 - ddms]null
java.lang.NullPointerException
at com.android.ddmlib.JdwpPacket.writeAndConsume(Jdwp Packet.java:213)
at com.android.ddmlib.Client.sendAndConsume(Client.ja va:573)
at com.android.ddmlib.HandleHello.sendHELO(HandleHell o.java:142)
at com.android.ddmlib.HandleHello.sendHelloCommands(H andleHello.java:65)
at com.android.ddmlib.Client.getJdwpPacket(Client.jav a:670)
at com.android.ddmlib.MonitorThread.processClientActi vity(MonitorThread.java:317)
at com.android.ddmlib.MonitorThread.run(MonitorThread .java:263)
[2010-09-20 09:50:11 - DeviceMonitor]Sending jdwp tracking request failed!
[2010-09-20 09:59:29 - DeviceMonitor]Sending jdwp tracking request failed!
[2010-09-20 09:59:31 - Logcat]device not found
com.android.ddmlib.AdbCommandRejectedException: device not found
at com.android.ddmlib.AdbHelper.setDevice(AdbHelper.j ava:736)
at com.android.ddmlib.AdbHelper.executeRemoteCommand( AdbHelper.java:373)
at com.android.ddmlib.Device.executeShellCommand(Devi ce.java:285)
at com.android.ddmuilib.logcat.LogPanel$3.run(LogPane l.java:516)
[2010-09-20 10:40:46 - DeviceMonitor]Sending jdwp tracking request failed!
Also, is there a way to capture the TEXT from CMD window that runs while the Emulator is coming up?
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May 20, 2010
I've been hanging in the shadows for a while now but thought I would burst my forum cherry. With the World Cup looming I wondered if any of you fine people have used any of the World Cup apps (paid or free) that are available on the market and what your thoughts were on them? I'm looking to dedicate one of my home screens to a World Cup fenzy of info ready for when it starts so I can amaze my mates down the pub with stats and nuggets of clever info.
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Jun 11, 2010
Got a world cup app on his iphone looks good does anyone know if this will be available for the desire? also read soo many threads with numerous apps beebplayer, tvcatchup & yamgo to name a few with some peeps saying new versions for world cups any news on this as there no on the app market?
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May 9, 2010
I would be ECSTATIC if an app that could stream the World Cup existed. Anyone know if one exists or is in the process of being created?
I, for one, would definitely be willing to pay for it.
I know ESPN is broadcasting the World Cup and I have access to ESPN360. Anything I can do with that to stream it?
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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, 2010
What app are you using to follow the World Cup? I am testing several out right now - let me know if you know of a few that are good that aren't on the poll list.
I am using Goal.com Mobile - its really great and I highly recommend! I think the FutMob WorldCup/5.0 versions would be my next best bet in terms of notifications and news.
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Jun 18, 2009
I have successfully booted android on to the omap 3530 evm(mistral) using the prebuilt binaries available in the mistral site.. now i would like to run a simple application like hello world on it.. can somebody please guide me as to how to go about running it and if some tools have to installed..?
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Jun 16, 2010
I am working on application which required to display the data in following from: List of Region----->List of Countries(As per selection)List of Cities(As per selection).I had tried hard to find some web services which facilitate the same but no success, please help me to find it.
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Sep 30, 2010
I made an Android Hello world app and I'm trying to load it onto my HTC Incredible. I believe it has 2.2 (how do I confirm that?)Anyway, Eclipse gives me this message and then brings up the window in the screenshot below. Automatic Target Mode: Unable to detect device compatibility. Please select a target device. I'm on Ubuntu 64bit if that matters. I did turn on USB debugging on the phone. I told the phone to connect as a disk drive.Any ideas how to get my app onto the phone?Update: Do I need to perform these steps since I'm on Ubuntu? I doesn't mention what to do for Ubuntu 8.10 though.
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May 23, 2010
How do I switch World War to another phone with out having to start over? I was told it was possible but I haven't found instructions any where on how to do it.
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