Android :: Writing To System Framework In Emulator
Jul 15, 2010
I'm in the process of extending monkey for software testing purposes, so I would like to replace the current monkey.jar which my own compiled monkey.jar in the emulator. The current monkey.jar is
located at /system/framework/monkey.jar.
When I try to run the following command:
adb push monkey.jar /system/framework/monkey.jar
I get the following:
'failed to copy 'monkey.jar' to '/system/framework/monkey.jar': Out of
memory'
How to replace the current monkey.jar?
This actually works if I'm running Android 1.6 in the Emulator, but nothing after that.
Yes, i've tried 'abd remount'
This is not a .jar specific issue. I can't push any type of file to /system/framework
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Jul 21, 2010
I am currently writing the backend for a service which has 3 clients: browser, android native and iphone native. I am having a little trouble with coming up with an authentication system since I don't know what can really be done on the clients.
I am using django + twisted for the backend.
Basically, I am going to be writing RestfulAPIs to open up for the clients on both phones to call.
Now the real question is, how should I come up with an authentication system?
I have thought about using sessionids, this works very well with the browser and I can use django's integrated app for that.
However, I don't know if it's possible for both the iphone and android to obtain a unique sessionid on the handset. Should I write an API call to distribute unique sessionids?
if that's the case, is it possible for me to still use django's authentication system since a lot of the stuff here are customized? ( I am not even using a rdbms - I am sticking with mongodb, so I was on the verge of dropping django's authentication app ftm).
I have looked at foursquare's API and their basic auth method requires you to pass in user:password in every http request header. That adds 1 additional authentication each call which can kind of seem excessive.
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Nov 10, 2010
I am trying to write some simple data to External storage using the following code.
I am missing something here but not sure what.
CODE:..............
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Feb 2, 2010
I'm a beginner in Android and request any help on the following. I'm trying to use an SD Card loaded on to the Emulator and store files pro grammatically. The code snippet is as below public class Down loader { public Down loader(String path){ this.path=sanitize(path); Log.d("DEBUG","The File Path is " + path);}
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Jun 10, 2009
I need to debug android's java framewoek layer like telephony so how to debug that.
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Jul 2, 2010
I managed to get my incredible rooted earlier today using the SD card trick. Now I am trying to install Arabic fonts + reshaper as seen here.
The problem I am having is that I can't figure out a way to replace the font. When I open up a console and try to adb remount it claims I don't have permission. When I manually mount, with this, it claims that there is insufficient space when I try and push the font. Root explorer won't allow me to paste into the system/fonts directory either.
I know that NAND protection still exists on the Incredible, but is there a way to easily get around this right now?
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Apr 14, 2013
I have this problem with my friends galaxy ace GT-S5839i: here because I don't know what to do I pulled the file framework-res.apk from system and then changed the extension to zip, and changed an image inside one of the folders.
After that I zipped the pack again (tried several zip options) and changed the extension back to apk My first question: Is this ok?
I copied the changed file to sdcard and using es explorer moved the file to system/framework. Imediately After answering if I wanted to overwrite the phone freezes and never booted again.
I restored the rom and tried several times with same result I tought the problem would be trying to overwrite a file that's in use but then I found a tool the decompiled the original apk, changed the image, compiled and signed it and made a flashable zip of it.
It gsve always error in trying to flash this on recovery so I extrated the compiled and signed new framwork apk and moved it to system with es explorer... The difference now is that it didn't froze the phone but started to show fc's everywhere. Rebooted, wipede cash and dalvik, messed up woth permissions... Everything I could think of and the result os always tbe same...
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Apr 20, 2010
I got a wierd problem with android emulator, I have created a virtual device through Android AVD manager (newly created emulator with platform 2.1 and api level 7), I have tried with standard settings and with added hardware parameter for larger (256 mb) device ram size but nothing changed.
I need to come files to the system partition to test a project (called haggle), but for some reason the system partition has no space from start.
aa a@aaa /home/haggle-0.2-android
$ adb -s emulator-5554 shell....................
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Mar 10, 2013
I have 1 rom, I pulled the file system, for example: system.rfs or system.img.ext4 or factoryfs.rfs. I added, customize the apk and want to put it back and want to be first to run the emulator software to check for errors before running Core issues, problems I faced.
1. how to repackage the system files that (system.rfs, system.img.ext4, factoryfs.rfs, system.img)
2. Using software to run the emulator
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Feb 10, 2010
I need to copy files to the system partition of the emulator. As it is read only by default, I use the command "adb remount" to have write permissions and I can then copy the files.
My problem is that when I close the emulator and that I restart it, the copied files were missing. It's very annoying because I must write file permissions that are read at startup of the emulator (platform.xml file in /system/etc/permissions)
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Aug 24, 2010
I need to create a Robotium application that would use Settings application to turn ON/OFF WIFi from menu Settings->Wireless & networks->Wi-Fi.I managed to find some sample code here that demonstrates how to launch application by having apk file only.The problem is that my Robotium application should have the same signature with the (system) Settings application.Can I somehow make it work with the Android Emulator?If I compile an Android phone image, how can I use the Android system signature with my application?
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Feb 9, 2009
Is it possible to write data or create folder in system directory like /system/media/audio/alarms. i.e other than our respective package.
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Nov 17, 2010
I am an Android app developer, and I have purchased a Nexus One device which I use to continuously test my developed Android applications.
Background: ----------------- One of the applications I developed uses a native shared library (e.g. myNativeLib.so). Only my application loads & uses this native library. I had developed this app before Android NDK came out. I pack my native library into my apk's 'assets' folder, and during my application start- up, I extract this native library from my package's assets folder to my app private directory (i.e. <assets> -> /data/data/<myappprocess>/ myNativeLib.so). Then I use System.load() API in my application to dynamically load this native library.
Problem: ------------ This application was developed during Android 1.5 (i.e. cupcake) days {I didn't have the Nexus One then}. The above procedure has been working without any problems right from Android 1.5 to Android 2.2 (i.e. Froyo). I have also tested the same on my Nexus One for Android 2.1 (i.e. Eclair) and Android 2.2.
The problem began the moment I recently upgraded my Nexus One to Android 2.2.1 via the FRG83 system update. Now, whenever I try to load my native library, I get the following error:
D/dalvikvm( 3653): Trying to load lib /data/data/<myappprocess>/ <mynativelib>.so <some address> I/dalvikvm( 3653): Unable to dlopen(/data/data/<myappprocess>/ <mynativelib>.so): Cannot load library: link_image[1995]: failed to link <mynativelib>.so
What I have Tried: -------------------------- 1. I tried my application using Android 2.2 SDK (emulator)...it works, no issues. 2. I checked out the latest froyo & android2.2.1 source code from Android open-source, built & tested my application + native lib using the latest froyo source...it built & ran, no issues. This should've taken care of any changes in the native code dependencies between Android 2.2 & Android 2.2.1 3. I even checked Android 2.2.1 source code for dalvik (java System & Runtime classes) + bionic (linker & dlopen sources) between Android 2.2 & Android 2.2.1 (using source checked out from Android open-source), but couldn't find anything consequential 4. I am unable to return my Nexus One to Android 2.2.
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Aug 6, 2010
I created a sqlite database to store playlists for a media player I am developing because of extended feature (rather than using the Content Provider). It works perfectly on the 1.6 emulator but FCs on anything higher than 2.0... what has changed that I need to know about as far as opening databases in SDK 2.0+? Here is the logcat.
CODE:.............
Here is the dbhelper class
CODE:................
why can't stackoverflow just use tags like a normal syntax highlighter.
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May 19, 2009
Unable to play youtube videos on SDK 1.5 emulator - but playing well on SDK 1.0 emulator. Can you update the source....
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Apr 13, 2010
Finally strace gave me this:
CODE:................
And several other attempts to call "link" that also fail (sshfs does not support hard links).
Is it possible to change the emulator's behavior to create lock files somewhere in /tmp (using some hash of image path as lock file name)? I am OK to try this myself: which repositories from https://android.git.kernel.org/ are necessary to rebuild the emulator alone, and where in the sources is the code responsible for image locks?
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Apr 20, 2009
I need to run several emulator instances to test my application. When i try to run instances using emulator -data <path> option, the emulator crashes.
I got a MS Visual Studio window informing that emulator throws a "unhandled win32 exception".
The exception message in the debugger (MS Visual Studio 2008) is: "Unhandled exception at 0x77c4706c in emulator.exe: 0xC0000005: Access violation reading location 0x03216848"
The emulator runs normally without "-data" option.
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Nov 1, 2010
I am getting the following error when I try running my program in the emulator:
emulator: ERROR: the user data image is used by another emulator. aborting`
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Aug 15, 2010
When I write web apps I rely on frameworks like jQuery, likewise in WinForm I use DevExpress's UI.Is there a UI framework with fancy looking buttons, graphics, transitions etc etc that I can rely on to build great looking apps ?
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Jun 3, 2010
What an Android Framework is? What does it do? How should I answer? Also what is the role of API's such as Activity Manager, Location Manager etc in the Framework?
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Sep 4, 2010
Phone: UK Galaxy S Issue: Recovery boot error message in red writing
Multicsc : can not access to / system/csc/VOD/system/
Background: I have been trying to root my phone from information found in a youtube video. All went well and the little ninja bloke with the sniper rifle was in the app list. Tried installing busybox and was told that the phone was not rooted�..
I think I ran the root application again and at some point I started getting this error message when in recovery. I have since run the one click root method to unroot the phone and the little nija dude is no longer there. Since I rooted the phone it will no longer connect to my wireless network, it finds the network and attempts to obtain an ip address. After a few min it times out and tries again. When I load the phone recovery the error message is still present.
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Apr 8, 2009
Is there a way to reload an Android application in the emulator without closing the emulator, saving any code changes, and running the emulator again? If I make even a simple change to the layout, it takes about 30 seconds by time I run it in Eclipse and Android "boots", and I can unlock the emulator to run the application. Is there any way to shorten this time when making changes, or is it something I just have to deal with?
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Mar 16, 2010
I downloaded the most recent version of Android for linux (android-sdk_r05-linux_86.tgz). I was trying to use the the Android Ant task(s) for packaging, building, and deploying my code. I should mention that I'm running AMD64, but have the 32-bit libraries installed. The Android Ant tasks are all broken.
First, the start-emulator task never gets the emulator running. It does get past starting adb, but then just sits there.
Second, the SDK is missing the aapt binary in the tools directory. So, the example notepad sample application will not even package correctly.
I have all the dependencies configured for Android. I can run it from the command line just fine.I assume the Ant code is out of sync with the recent SDK updates. Can anyone shed some light on this problem? At this point, I'm considering writing my own Python scripts to interact with the Android SDK. Ugh.
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Jun 9, 2010
This is a pretty open ended question.I have a T-Mobile Touch and have some free time on my hands. So far as i understand im stuck with Android 1.5 and no sign of T-Mobile or Huawei releasing a ROM using a more up-to-date version of the Android SDK.Im asking what are the major complexities involved with making a ROM for this fone using a newer version of the Android SDK?
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Sep 16, 2010
I would like to open an mp3 file with my own audio player(based on mplayer and FFmpeg) I packaged in a apk file. It runs fine using command line and the executable version but not when packaged in apk. I got the messages using adb logcat window:
I/stdout ( 2115): PCM: Samplerate: 48000Hz Channels: Stereo Format s16le I/stdout ( 2115): [AO PCM] Info: Faster dumping is achieved with -vc null -vo null -ao pcm:fast I/stdout ( 2115): [AO PCM] Info: To write WAVE files use -ao pcm:waveheader (default). I/stderr ( 2115): [AO PCM] Failed to open /dev/msm_pcm_out for writing! I/stderr ( 2115): Failed to initialize audio driver 'pcm:file=/dev/ msm_pcm_out' I/stderr ( 2115): Could not open/initialize audio device -> no sound. I/stdout ( 2115): Audio: no sound I/stdout ( 2115): Video: no video I/stdout ( 2115): Exiting... (End of file)
I put the permission in the manifest file as follows:
code:...............
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Apr 9, 2009
I want to edit image for Writing text on images, is it possible in Android, if so, how to achieve this.
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Nov 6, 2009
Does anyone have any suggestions on where to start in case one wants to write a firewall for Android? I am interested especially in how would one go about in blocking access for various applications that are blacklisted from a firewall application. As far as I could find, there are no firewall applications in the real sense except Droidwall which uses iptables on rooted phones, but I would like to see if there are any API calls currently in Android that may help with this task, be it NDK or SDK.
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Mar 31, 2010
I'm looking for a way to programmatically save an array of shorts as PCM data. I know that this should be possible, but I haven't found a very easy way to do this on Android.Essentially, I'm taking voltage data, and I want to save it in PCM format. My function looks something like this:public void audifySignal(short[] signal) {// Create a WAV file from the incoming signal}Any suggestions would be awesome, or even references. Seems like the audio APIs built in to android are more geared for directly recording from the mic, and not so much for lower level signal processing type work (at least for saving raw data to a file). I'd also like to avoid having to manually write the PCM file headers and what not.
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Jul 8, 2010
When implementing download function it work but during file saving to sdcard i get the following Default buffer size used in BufferedInputStream constructor. It would be better to be explicit if an 8k buffer is required.Also IO Exception occure
W(14495:0x389f) java.io.FileNotFoundException: /sdcard
W(14495:0x389f) at org.apache.harmony.luni.platform.OSFileSystem.open(OSFileSystem.java:244)
W(14495:0x389f) at java.io.FileOutputStream.(FileOutputStream.java:97)
W(14495:0x389f) at java.io.FileOutputStream.(FileOutputStream.java:168)
W(14495:0x389f) at java.io.FileOutputStream.(FileOutputStream.java:147)
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Jul 22, 2010
I have a game object that I save like this in OnPause()try {final ObjectOutputStream os = new ObjectOutputStream(openFileOutput(gameName + ".sav", 0)); os.writeObject(gameObject); os.reset();} catch (final Exception e) {e.printStackTrace();This works fine except on some of the older or slower phones it can sometimes take too long to complete. I end up getting a ANR (Activity Not Responding) error. I would like to move this to a thread to prevent blocking the UI. However when I try this I run into multiple problems.First openFileOutput is only available in my activity. I worked around this by passing the ObjectOutputStream to the thread. After that I could save the object but later when I tried to reload I get a java.io.EOF Exeception. does anyone have a good pattern for writing objects to a file from a thread?
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