I followed the Android Hello world example the other day, and got it to run. I saw "hello world" on the emulator. Today I ran it again, but I don't see "hello world" anymore! I waited 5 mins, and still saw Android charging 50% and showing time.
This is how I opened the Hello world project:
at Eclipse, File>New>android project, then I selected create from existing project. It brought up my project. Then I clicked on 'Run' button..no more Hello world.
I also saw this message in red at the Console window in Eclipse when I ran the project. What does this mean?
[2011-08-04 23:25:36 - Emulator] Unknown savevm section type 95
I also went to SDK&AVD manager, and installed Android 3.2 platform. My Hello world project requires minimum 2.2 platform.
How do I get Hello world to work again?
I have a feeling that you didn't swipe the lock and unlock the screen in the emulator. Did you swipe the green colour unlock button, then you'll be able to see the hello world application u wrote.
You can write hello world application even with android 1.5.
Related
I am getting started with developing an application for Android using Qt 5.8 and am running into issues running a basic application. When I run a basic application on an Android emulator, the application fails to load and a lot of errors are printed to the Qt console. Text file of errors
Images of Qt Creator, emulator, and errors
I followed tutorials online on getting the Android development environment set up, and as far as I know, I have the SDK, the NDK, Java, and ant all set up correctly.
From "create a project" in Qt, I selected the Qt Quick Control Application, and set the kit for Androidx86 and desktop. I basically kept the application as it came, but added a teal background and two text fields, but didn't change any code.
When I run the program for desktop, it works fine and opens as shown with clickable buttons and typeable text fields. But when I try to deploy the application on any emulated Android application on 7.1, the emulator boots properly but the app that displays is just this.
The error messages that show up in the Qt Designer are and here is a file dump of the whole list of errors that showed up from trying to run the app.
I am unable to figure out what these errors mean, as I installed Qt and the android files according to the documentation but still encountered these errors and was hoping someone would know what the issue was?
Probably related to the service change or similar (QtActivity etc.) Please check the following link. (Bug fixed and resolved) Fix version: 5.7.0 RC
https://bugreports.qt.io/browse/QTBUG-52373
I tried creating an Android workspace with Codenvy with the sample hello world app provided. I built and ran the project. Clicked on 1(execute the run command) and then on 2(preview).
I never saw the hello world activity in the emulator screen and I didn't even see the app installed in the APPS section.
Am I doing something wrong?
You need to follow this guide https://github.com/che-samples/mobile-android-hello-world/blob/master/README.md and install apk once an emulator is started.
I have just started internship in a company, they said i will be working on a android project using qt.I need to join them by next week, in meantime i thought of installing qt on my laptop which has Ubuntu 15.04(64-bit).
I downloaded Android SDK, Android NDK, Ant Executeable.
Here is my android settings in qt.
I created a sample app using New Project -> Qt quick Application,it pasted some sample code for hello world when i tried running it it said
could not find the executable please specify one qt
then i opened my project folder and specified a file having name same as my project name,fortunately it worked.
Now when i run the project it displays hello world but when i try to debug it either by attaching external device or through emulator it displays a pop-up which displays a string "Unknown error".
1.Have i specified the settings correctly?
2.how to get rid of this error and start debugging.
can i do debugging on my device in ubuntu.
I am just a beginner plz provide easily understandable answer.
I am new to Android development and Eclipse. I have been given an Android app and asked to make some simple changes to it. I can build the project and run it in the emulator, but I see some errors in the LogCat window in Eclipse.
I put aside the app I was given and wrote the Hello World app, following the Hello World tutorial on developer.android.com. With this simple app, I was surprised to see many errors and stack dumps in the LogCat window. I closed Eclipse and re-launched it. After waiting for Eclipse to finish initializing, LogCat was empty. Then I started the Hello World app by clicking the run button. After a while entries appeared in LogCat, including many errors.
With such a simple app, copied from the tutorial, I am guessing the errors arise from the development environment and/or virtual device rather than from the app itself, but I would like to be able to run apps without errors.
Is it a reasonable expectation to be able to run Android apps from Eclipse on an AVD without any errors? Or is it the state of the art that the development environment logs many errors and dumps stack traces even when everything is running "normally"?
If it is reasonable, I will pursue each error until I have cleaned up my environment and application. I would prefer this, as I would then know that if errors appear as I continue development, they arise from my application and must be fixed. On the other hand, I can't spend months developing Eclipse and the Android SDK. If I have to learn to live with logs full of error messages, I'll just ignore them unless something crashes.
Note that the Hello World application runs as expected - it appears to be working despite the errors.
I am running Eclipse Indigo SR2 and Android SDK ??? (I don't see a version number for the SDK - the installer is r18 and SDK Manager says there are no updates available) on Windows 7 Professional, 64bit. I am testing with Android 4.0.3.
Use either:
adb com.your.package:v
or in log cat on the side button (You may need to make this visible by pressing the button with two rectangles in it in log cat) press the plus button and then add an application filter
When Start running Android Hello world project, the eclipse launches emulator, but seems hello world project was not running, the emulator showed "Android" in the middle of the scrren, I tried Android 2.2 emulator, I heard some people opens emulator first then run the project, Havn't tried that yet. is that a correct way?
The Android emulator is slow. So be patient and eventually it will show you a home screen and your project will run.