My android interview path (4: scare): the road to androidLife is full of fear for a second or dark clouds look back, but the sky is wide
Life is full of fear for a second dark clouds look back, but the sky is wide
Congratulations to myself. This afternoon, I received an offer job in Beijing, and I was very happy to get this offer with my good luck. I finally found my job in
an executable program. If you see these commands, you will find that they are not commonly used at all. They are all prepared for the system administrator and are some system management and configuration tools. This folder serves as/sbin in the standard Linux File System. My mobile phone has busybox in this directory. It must have been changed. It should have been added by the attacker.
Modules: used to store kernel modules (mainly FS and net) and module configuration files.
Framework: a core
phone.However, on other mobile phones, screenshots can only be taken after root and root permissions are obtained.
1. Screen captured through screencap
2. Screen captured through screenshot
3. Screen captured by a third-party application "No Root Screenshot It"
4. P6 ver
Android root-free firewall
When using the android mobile phone, I found that the traffic on my mobile phone was often stolen by some apps with advertisements that were accidentally downloaded. I searched various markets, and most firewalls require mobile phone root. Most of them are modified from the famous Droidwall.
With the Nexus 4 removed, most pro-sons can eat sweet Android 5.0 Lollipop. Of course, there are also many users who are afraid to upgrade because of the difficult rumors of Android 5.0 Root. With this in mind, Cf-auto-root has released the
DataOutputStream (Process.getoutputstream ()); 03.os.writebytes ("mount-oremount,rw/dev/block/mtdblock3/system\n"); 04.os.writebytes ("BusyBox cp/data/data/com.koushikdutta.superuser/su/system/bin/su\n"); 05.os.writebytes ("BusyBox chown 0:0/system/bin/su\n"); 06.os.writebytes ("chmod 4755/system/bin/su\n"); 07.os.writebytes ("exit\n");
This is part of the code in the Superuser and Android apps mentioned above:
if (Setgid (GID) | | setuid (
1, for many users, root is not necessary, it is only when you install in the simulator, such as 360 phone guards-the security of the detection application to determine whether you can go to the phone, or the re file Manager-the easy way to call files between the win system and the Android system; Pancake Android Game Modifier- Modify the gold coins or experience
A method for implementing the android root-free firewall
When using the android mobile phone, I found that the traffic on my mobile phone was often stolen by some apps with advertisements that were accidentally downloaded. I searched various markets, and most firewalls require mobile phone root. Most of them are modifi
default boot after the system partition is read-only, so even if your phone is root, through the terminal operation, see is also read-only, can not be modified, then need to be re-mounted, mainly to be mounted to read and write, the core script is as follows:Mount REMOUNT,RW /[email protected]/system1.3.2 About executable PermissionsIn short, the Linux perspective of a program's various permissions are set by the permission bit, the core idea is: Rea
DB_PATH_SD = Environment.getexternalstoragedirectory (). GetAbsolutePath () + File.separator + "TDR" +File.separator; Public Static classbasedb{ Public Static Final intVersion=1; Public Static FinalString dbname= "Base.db"; }3, where needed, call Copydbfile () The try { //Copy tool class gets the Basedbhelper.getinstance (). Copydbfile () by a single case (), a catch (FileNotFoundException e) {
Run Linux on Android devices without root
Once, I tried to search for a simple method to run Linux on Android. At that time, I only wanted to use Linux and some basic applications, such as SSH, Git, and awk. There are not many requirements! I don't want to root my Android d
Android's silent installation seems like an interesting and tempting thing to do, but in common practice it seems difficult to install silently if the phone does not have root privileges, because Android does not provide the intent call that is displayed, typically by installing APK in the following ways:
Intent Intent = new Intent (intent.action_view);
Intent.setdataandtype (uri.fromfile (file), "
Start analyzing Android todayRoot file system startup process.When the Android system is started, "init =/init" is usually set in the kernel boot parameters. In this way, if the kernel is successfully mounted to the file system, the INIT program in the root directory is run first. What does this program do? We only have rfsc (readthe fucking source code )!!The IN
Android Real device debugging, something can not use USB debugging, or with USB debugging too troublesome, then need to use wireless debugging this way.Unlimited debugging sub-root and non-root two, the market's wireless ADB debugging app, basic needs root permissions, which makes no
· Course Lecturer: the teacher· Course Category:Android· Suitable for people: advanced· Number of lessons:( + ) hours· Update level: Complete· Type of service: ClassC (General Service class course)· Technology: Android,A8,Linux,Drive,NDK , Alarm· Related projects: Linkage alarm systemInterested in this course can add to my qq27481657931. Curriculum development EnvironmentThis course covers Java applications, C-language drivers, NDK (app call drivers
important point in the tree structure is the relationship between the key value sizes of the nodes. In a binary tree, all nodes with a key value that are smaller than a node's value are on a subtree of the root of the left child node of the node, and all nodes with a greater value than a node value are on the subtree of the root of the right child node of the node. The 2-
1, for many users, root is not necessary, it is only when you install in the simulator, such as 360 phone guards-the security of the detection application to determine whether you can go to the phone, or the re file Manager-the easy way to call files between the win system and the Android system; Pancake Android Game Modifier- Modify the gold coins or experience
(Client.getoutputstream ());
OUT.PRINTLN (msg);
Out.flush ();
return In.readline ();
}catch (IOException e) {e.printstacktrace ();} return "no Return"; /** * Socket connection thread, if the connection failed will attempt to reconnect 3 times * @author Administrator * * * Private class ConnectsOcketthread extends thread{@Override public void Run () {while (!isconnected connecttime
At this point, the implementation of the grab on
involves reading the SDK and naturally it is necessary to determine if the SDK is plugged in.
2, access to the SD card root directory:
Two. File operation in private directory:
1. Get the private root directory:
2. folder or folder operation:
(1) Get folder and file path
A. Obtain the absolute and relative paths of a file or folder. Difference
String path = File.getp
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