Ankur Bansal krazylearner

Android Debug Bridge (adb) is a command line tool that lets you communicate with an emulator instance or connected Android-powered device. It is a client-server program that includes three components:

A client, which runs on your development machine. You can invoke a client from a shell by issuing an adb command. A server, which runs as a background process on your development machine. The server manages communication between the client and the adb daemon running on an emulator or device. A daemon, which runs as a background process on each emulator or device instance. You can find the adb tool in /platform-tools/.

When you start an adb client, the client first checks whether there is an adb server process already running.

start bluestack or emulator install app on it start the app

connect adb to emulator

$ adb connect localhost:5555

get 'pid' of your app .Dont forget to run it first in emulator

PART 1

Styles and themes are time-saving ways to create a consistent look and feel across your Android application.
Styles and themes are essentially the same thing: a collection of properties.
These properties can be anything from button color to the "wrap content" attribute or the size of your text.
The crucial difference is how they’re applied to your project:
A style is applied to a View.
A theme is applied to individual activities or an entire application.

Why Should I Use Themes and Styles?

Summary

Given a version number MAJOR.MINOR.PATCH, increment the:

MAJOR version when you make incompatible API changes,
MINOR version when you add functionality in a backwards-compatible manner, and
PATCH version when you make backwards-compatible bug fixes.

##Semantic Versioning Specification (SemVer)

##Patterns for writing functions ###how do you deliver errors to the code that called your function ?

''' Document what your function does, including what arguments it takes (including their types and any other constraints), what it returns, what errors can happen, and what those errors mean. So if you're writing a new function, you have to tell your callers what errors can happen and what they mean. '''

three basic patterns for a function to deliver errors.

Throw, Callback, or EventEmitter

/*
 * Make a TCP connection to the given IPv4 address.  Arguments:
 *
 *    ip4addr        a string representing a valid IPv4 address
 *
 *    tcpPort        a positive integer representing a valid TCP port
 *
 *    timeout        a positive integer denoting the number of milliseconds

	The method list() takes sequence types and converts them to lists. This is used to convert a given tuple into list.



	aTuple = (123, 'xyz', 'zara', 'abc');
	aList = list(aTuple)

	print "List elements : ", aList

	#When we run above program, it produces following result:

	#As your program gets longer, you may want to split it into several files for easier maintenance.
	#You may also want to use a handy function that you’ve written in several programs without copying its definition into each program.
	#To support this, Python has a way to put definitions in a file and use them in a script or in an interactive instance of the interpreter.
	#Such a file is called a module; definitions from a module can be imported into other modules or into the main module

	# Fibonacci numbers module
	# fibo.py
	def fib(n): # write Fibonacci series up to n
	a, b = 0, 1
	while b < n:


	>>> import sys
	>>> dir(sys)
	['__displayhook__', '__doc__', '__excepthook__', '__name__', '__package__',
	'__stderr__', '__stdin__', '__stdout__', '_clear_type_cache',
	'_current_frames', '_getframe', '_mercurial', 'api_version', 'argv',
	'builtin_module_names', 'byteorder', 'call_tracing', 'callstats',
	'copyright', 'displayhook', 'dont_write_bytecode', 'exc_clear', 'exc_info',
	'exc_traceback', 'exc_type', 'exc_value', 'excepthook', 'exec_prefix',
	'executable', 'exit', 'flags', 'float_info', 'float_repr_style',

	net stop jenkins
	java -Dhudson.util.ProcessTree.disable=true -jar "C:\Program Files (x86)\Jenkins\jenkins.war" --httpPort=8080