Identify Activity Name and Start the Activity of Installed App
Identify launcher Activity names and start installed Android apps via ADB shell: run adb shell am start -n com.example.app/.MainActivity.
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Adb shell command to get Current Activity Name (Foreground / Top Activity )
Find active foreground Android app Activity names via ADB shell: run adb shell dumpsys activity dumpsys window | grep -E "mCurrentFocus|mFocusedApp".
Fixed : openssl/opensslv.h: No such file or directory
When trying to compile some packages / libraries or application source codes in Linux which are based … Read more
Understanding Android Touch Event , onTouchEvent ( Motion Event )
When we just touched the touchscreen and printed the logs in application using “onTouchEvent” it printed following … Read more
How to Install 7Zip on Ubuntu Linux ?
7-Zip is a file archiver with a high compression ratio. Using 7 zip we can compress the directory … Read more
How to Compress files using 7z in Linux ?
7-Zip is a file archiver with a high compression ratio. Using 7 zip we can compress the directory … Read more
How to get Android Display Resolution using adb shell command ?
Display resolution indicates the height and width of the physical display which the android device is using. … Read more
How to identify and change input device location in Android ?
Identify what is the current location of the input device using getvent command as, So, the output … Read more
Identify Input Device Information in Android
To identify the information about the input device connected to Android platform, we can use “getevent” as … Read more
Solved : Failure INSTALL_FAILED_SHARED_USER_INCOMPATIBLE “tried to change user”
Fix "INSTALL_FAILED_SHARED_USER_INCOMPATIBLE: tried to change user": resolve android:sharedUserId conflicts, sign app with platform keys, or uninstall.
Solved: ServiceManager: Permission failure: android.permission.ACCESS_SURFACE_FLINGER
Fix "ServiceManager: Permission failure: android.permission.ACCESS_SURFACE_FLINGER": configure SELinux policy rules and system UID permissions in AOSP.
How Yocto build Software Package from source code
Understand Yocto Project package compilation stages: trace do_fetch, do_unpack, do_patch, do_configure, do_compile, and do_install in BitBake.
Inspect File Attributes in C Using the stat System Call
The stat() system call in POSIX C returns file metadata—including file size, inode number, permission bits, block allocation count, ownership UIDs, and access timestamps—from a file's inode structure without opening or reading the file contents. The struct stat data structure The system header <s
Retrieve File Metadata in C with stat System Call
Retrieve file metadata in C using POSIX stat() system call: inspect st_size, st_mode permissions, st_uid/st_gid, and access/modification timestamps.
How to use #Ifndef directive in C program ?
#ifndef ( if not defined ) directive is used in C language for conditional execution of certain … Read more
How to use GLab – A GitLab Command Line Tool ?
GLab is an open source Gitlab Cli tool written in Go (golang) to help work seamlessly with … Read more
Create a GitLab Project from the Terminal—and Hand It Off Well
A new GitLab project is more than an empty remote. Create it deliberately from the terminal, publish the first branch, and leave the next teammate a repository they can trust.
How to Push your Project to GitLab ?
Once we have created the project as mentioned “Getting started for First Project with GitLab” and added … Read more
Quiet the Room Without Losing Your Voice in OBS
Background noise is frustrating, but the strongest filter is rarely the kindest to your voice. This listening-first OBS workflow reduces steady noise, controls quiet gaps, and helps you stop before the cure becomes the problem.
Fixed : error: #elif with no expression
When we want to make a compile time decisions to enable some code and disable other, #ifdef … Read more
Use repo on Windows to Download Android Source
Android had developed repo tool to download huge android source code, primarily keeping in mind of development … Read more
Compress Files using TAR Command in Linux
In Linux “tar” is an archiving utility, which is used by a large number of Linux users … Read more
Build Embedded Linux for Raspberry Pi using Yocto
Building complete Linux operating system for embedded devices was a complicated task requiring investment with both time … Read more
A Linux Port Is Listening. Can Anyone Actually Reach It?
A listening socket proves that something is waiting inside one network namespace. It does not prove the service is reachable through a firewall, container boundary, router, or cloud network policy.