update Android docs

shawn111 · Apr 28, 2024 · 97fbd43 · 97fbd43
1 parent 3bcf460
commit 97fbd43
Showing 1 changed file with 154 additions and 33 deletions.
diff --git a/collections/android/README.md b/collections/android/README.md
@@ -11,8 +11,7 @@ theme:
 
 # Andriod
 
-
-Android is Linux
+Android is a kind of Linux with google magic
 ---
 
 - termux - an Android terminal emulator and Linux environment app
@@ -30,7 +29,7 @@ https://gs.statcounter.com/os-market-share
 -----
 <!-- end_slide -->
 
-# Android is Linux/bionic Distro
+# Android parts
 
 - Android 啟動過程 - init 進程 https://hackmd.io/pJpAeKAeRea0VIW3oI-mXw?view
   - https://hackmd.io/@AlienHackMd/BkvyAzNf9
@@ -44,16 +43,39 @@ https://gs.statcounter.com/os-market-share
 -----
 <!-- end_slide -->
 
-# termux
-
-![https://pbs.twimg.com/media/EeDRB0aX0AMj5kh?format=jpg&name=large](termux-screenshot.jpg)
-
-
+## termux
+
+<!-- column_layout: [1, 2] -->
+
+<!-- column: 0 -->
+![https://pbs.twimg.com/media/EeDRB0aX0AMj5kh](termux-screenshot.jpg)
+<!-- column: 1 -->
+
+- termux-emulator
+  - with function key keyboard
+  - as desktop via scrcpy
+- Linux environment
+  - as personal edge server
+    - with multi-sensors / phone functions
+      - termux-api
+    - androud call termux
+      - termux-tasker
+    - near 24/7 online 
+  - powerful device
+    - gpu https://blog.csdn.net/Billhe_zju/article/details/122706171
+  - docker / podman container (not real ready)
+    - run in qemu
+    - podman machine (not yet)
+    - native docker/podman/lxc (need root)
+    - (-) as kubeedge node
+
+<!-- reset_layout -->
 
 -----
 <!-- end_slide -->
 
-# termux application (main parts)
+### termux application (main parts)
+
 - single user
 - native (bionic libc)
 - terminal-emulator
@@ -62,6 +84,31 @@ https://gs.statcounter.com/os-market-share
   - socket
   - am (Activity Manager)
   - notification
+- limited kernel function (w/o root)
+- termux file system layout
+  - https://github.com/termux/termux-packages/wiki/Termux-file-system-layout
+
+-----
+<!-- end_slide -->
+
+### termux fs layout
+
+
+|      |   |   |
+|----------------------------|------------------------------------------------------------------------|---|
+| - Root directory           | /data/data/com.termux/files/usr ${TERMUX_PREFIX} |  |
+| ${TERMUX_PREFIX}/bin	     | Executables used by shell. Combines /bin, /sbin, /usr/bin, /usr/sbin. | * |
+| ${TERMUX_PREFIX}/etc	     | Configuration files. | |
+| ${TERMUX_PREFIX}/include	 | headers  |   |
+| ${TERMUX_PREFIX}/lib	     | Shared objects (libraries)   |   |
+| ${TERMUX_PREFIX}/libexec	 | Executables which should not be run by user directly. | |
+| ${TERMUX_PREFIX}/opt	     | Installation root for sideloaded packages. | |
+| ${TERMUX_PREFIX}/share	   | Non-executable runtime data and documentation. |  |
+| ${TERMUX_PREFIX}/tmp	     | Temporary files. Combines /tmp and /var/tmp. Can be freely modified by user. | |
+| ${TERMUX_PREFIX}/var	     | such as caches and databases. Can be modified by user, but with additional care. | |
+| ${TERMUX_PREFIX}/var/run	 | Lock, PID, sockets and other temporary files created by daemons. Replaces /run. | |
+| - Home directory           | /data/data/com.termux/files/home ${HOME}  |   |
+
 
 -----
 <!-- end_slide -->
@@ -72,8 +119,6 @@ https://gs.statcounter.com/os-market-share
   - package manager: pkg / apt
 - single source repo: https://github.com/termux/termux-packages
 - native (bionic libc)
-- termux file system layout
-  - https://github.com/termux/termux-packages/wiki/Termux-file-system-layout
 - repos / mirrors:
   - termux
   - termux-root
@@ -83,14 +128,67 @@ https://gs.statcounter.com/os-market-share
 -----
 <!-- end_slide -->
 
+### edge server
+
+- termux-service / runit
+  - https://github.com/termux/termux-services
+  - SVDIR: /data/data/com.termux/files/usr/var/service
+  - $ tail -f  ../usr/var/log/sv/sshd/current
+- termux-boot
+  - https://github.com/termux/termux-boot
+  - allowing programs to be run at boot.
+- termux-wake-lock
+
+
+-----
+<!-- end_slide -->
+
+### termux useful services
+
+- ngrok - Ingress Platform
+- ssh
+  - single user / id
+  - disbale password login
+- openvpn (via android app)
+
+
+-----
+<!-- end_slide -->
+
+### cli / tui - old school but awesome
+
+- colorful
+- auto complete
+- animation
+- cli / tui framework
+- http config
+
+-----
+<!-- end_slide -->
+
+## termux-setup-storage
+
+
+https://wiki.termux.com/wiki/Internal_and_external_storage
+
+-----
+<!-- end_slide -->
+
 ## proot: An chroot-like implementation using ptrace.
+
 - General usage information
   - unset LD_PRELOAD - Termux-exec, execve() hook, conflicts with PRoot.
   - -r ./rootfs - option to specify the rootfs where Linux distribution was installed.
   - -0 - tells PRoot to simulate a root user which expected to be always available in Linux distributions. This option will allow you to use package manager.
   - -b /dev -b /proc -b /sys - make file systems at /dev, /proc, /sys appear in the rootfs. These 3 bindings are important and used by variety of utilities.
   - /bin/sh - a program that should be executed inside the rootfs. Typically a shell.
 
+-----
+
+- other forks
+  - AnLinux
+  - UserLand
+
 -----
 <!-- end_slide -->
 
@@ -104,6 +202,12 @@ proot-distro login debian
   - ubuntu / redhat
   - nix
 
+-----
+<!-- end_slide -->
+
+## qemu
+
+qemu-system-aarch64-headless
 
 -----
 <!-- end_slide -->
@@ -112,10 +216,30 @@ proot-distro login debian
 # termux api
  -  termux-sms-send
 
+$ termux-battery-status
+```
+{
+  "health": "GOOD",
+  "percentage": 27,
+  "plugged": "UNPLUGGED",
+  "status": "DISCHARGING",
+  "temperature": 35.099998474121094,
+  "current": -1780000
+}
+```
+
 -----
 <!-- end_slide -->
 
+ Termux:GUI
+
+# termux am
+
+- https://github.com/termux/TermuxAm
+- https://github.com/termux/termux-am-socket
 
+-----
+<!-- end_slide -->
 
 ### other plugins
  - Termux:API
@@ -149,48 +273,42 @@ https://doc.rust-lang.org/nightly/rustc/platform-support.html
 -----
 <!-- end_slide -->
 
-## termux-setup-storage
-
------
-<!-- end_slide -->
+## termux-docker
 
-## termux- services / runit
+- kind of 
 
 ```
-  pkg install termux-services
+docker run -it termux/termux-docker:latest
 ```
 
------
-<!-- end_slide -->
-
-## ssh
+```
+docker run --rm --privileged aptman/qus -s -- -p aarch64 arm
+```
 
+```
+docker run -it --privileged termux/termux-docker:aarch64
+```
 
+https://github.com/termux/termux-docker/blob/master/Dockerfile
+```
+FROM scratch AS bootstrap
+...
+ADD https://github.com/termux/termux-packages/releases/download/bootstrap-$BOOTSTRAP_VERSION/bootstrap-$BOOTSTRAP_ARCH.zip /bootstrap.zip
 
+```
 
-https://blog.csdn.net/Billhe_zju/article/details/122706171
 
 -----
 <!-- end_slide -->
 
-## cli / tui - old school but fashion
-
+## termux-x11
 
 
-https://blog.csdn.net/Billhe_zju/article/details/122706171
-
 
 
 -----
 <!-- end_slide -->
 
-## termux-docker
-
------
-<!-- end_slide -->
-
-
-
 ## scrcpy
 
 -----
@@ -211,6 +329,9 @@ https://blog.csdn.net/Billhe_zju/article/details/122706171
 <!-- end_slide -->
 # waydroid
 
+- Waydroid uses Linux namespaces to run a full Android system in a container on any GNU/Linux-based platform.
+- The Android inside the container has direct access to the needed hardware. 
+
 LXC