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Questions tagged [android-rom]

Topics related to Android custom ROM development. For topics related to Android app development, use the Android tag

46 questions
78
votes
1 answer

Modifying in-call voice playback in Android custom ROM

I would like to modify Android OS (official image from AOSP) to add preprocessing to a normal phone call playback sound. I've already achieved this filtering for app audio playback (by modifying HAL and audioflinger). I'm OK with targeting only a…
SirKnigget
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34
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1 answer

Call recording - make it work on Nexus 5X (rooting or custom ROM possible)

I'm attempting to use AudioRecord with AudioSource.VOICE_DOWNLINK on Nexus 5X, Android 7.1 (my own build from AOSP). I'm already past the permissions stage - moved my APK to privileged apps, made an adjustment to AudioRecord in Android source to…
SirKnigget
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17
votes
1 answer

Samsung system image for Android emulator?

Is there any way to get the Android emulator to run a system image other than vanilla Android? I'm developing an app that works fine on the emulator, a physical Huawei device and a physical Motorola device, but experiences some weird issues on a…
Magnus W
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4
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How to deploy Trusty TEE?

Recently, I'm studying Trust Execution Environment. And finding that Android has implemented a TEE os called Trusty. I followed the instruction on https://source.android.com/security/trusty/ and built the Trusty system. But how can I deploy it? Or…
logan_white
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3
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0 answers

FAILED: TARGET_KERNEL_BINARIES

I'm building an AEX Oreo ROM. Here are the repositories I cloned https://github.com/kegang0619?tab=repositories Device tree =…
Kasa Lazzang
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2
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Permission handling for privileged system apps

I'm writing an Android app, that will run on custom hardware with a ROM that I have control of. The device will run a single application (as a launcher) and once the device is deployed I (generally) do not have access to it anymore. The app also has…
Squeazer
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2
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0 answers

Segmentation fault on rails

Is anybody can tell me what's going on? All rails command return segmentation fault, I tried to find solution on google but I didn't find any. I can'nt root my smartphone. What should I do?
Princy Tsimanarson
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2
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0 answers

How to test functionality of operating system while developing it?

I'm developing my own Android ROM. I find it is too inefficient to test my newly added functionality(made some change at boot up stage). I have to modify the code -> compile the Android system (at least 15min) -> flash to phone and see the…
logan_white
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1
vote
1 answer

nexus 5x stuck on Google screen after replacing one of the system shared libraries

My nexus 5x works fine until I changed some share library in system partition: adb push out/target/product/bullhead/system/lib/somename.so /system/lib/somename.so adb reboot then my nexus 5x is stuck on Google screen on boot. But when I cleared…
cong
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1
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1 answer

Permission Denied while sending from an app in /System/app

I am getting: java.lang.SecurityException: Permission Denial: not allowed to send broadcast android.intent.action.TIME_SET from pid=xxxxx, uid=xxxxx for: Intent timeChanged = new Intent(Intent.ACTION_TIME_CHANGED); sendBroadcast(timeChanged); even…
Rohit
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1
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How to clone entire AOSP codebase locally

I have AOSP code base in my system and i want take the backup of entire codebase to my external drive and I dont want to do repo sync or anything. I tried copying the folders manually but when I tried to do git log in my destination folder it shows…
Abhishek jr
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1
vote
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Starting to build an Android ROM

After some long hours of searching over the internet, i'm a bit confused and lost, thought to ask here. So, basically, i wanna start into building/developing roms for a specific device as of now. And even though there are multiple "tutorials" on how…
Attitude
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1
vote
2 answers

AOSP OTA - Updating system apps with newer version does not override previously installed, older apk updates

We manage our own AOSP based firmware for our Set Top Boxes. When we create a new OTA firmware, with newer versions of system apps. The newer versions of the system apps do not override the older versions installed in /data. Is there any post…
Code Rebel
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1
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2 answers

How to enable Developer Options by default in android source?

I want to enable Developer Options by default on android source? Is it possible? Please let me know.
makpan
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1
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retail demo mode custom launcher

I would like to create an application to change the retail demo mode video in a android retail device. Reference: https://source.android.com/devices/tech/display/retail-mode Since the link leads to an aosp site, it seems to me that I have to modify…
Aleks
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