Rahul RahulSDeshpande

Analyze & Manage Memory on Android Like a Boss

This Blog is all about memory management in Android. It provides information about how you can analyze & reduce memory usage while developing an Android app.

Memory management is a complex field of computer science and there are many techniques being developed to make it more efficient. This guide is designed to introduce you to some of the basic memory management issues that programmers face.

Memory Management in Android

Android is a Linux based operating system. It uses native open source C libraries which power Linux machines. All the basic operating system operations like I/O, memory management and so on are handled by the Linux kernel. Like Java and .NET, Android uses its own run time and virtual machine to manage application memory. Unlike either of these frameworks, the Android run time also manages the lifetime processes. Each Android application runs in a separate process within its own Dalvik instance, relinquishing all responsibility for memo

Hexadecimal color code for transparency

How to set transparency with hex value ?

For example, you want to set 40% alpha transparence to #000000 (black color), you need to add 66 like this #66000000.

All hex value from 100% to 0% alpha:

Android studio format code auto break line

To do this in Android Studio go to Preferences > Editor > Code Style

and set Right margin (columns) to 150 (or the line width you want)

Now go to File -> Settings > Editor > Code Style > Java > Wrapping and Braces

###Sketch trial non stop

Open hosts files:

$ open /private/etc/hosts

Edit the file adding:

127.0.0.1 backend.bohemiancoding.com

127.0.0.1 bohemiancoding.sketch.analytics.s3-website-us-east-1.amazonaws.com

	class HomeActivity : AppCompatActivity() {

	override fun onCreate(savedInstanceState: Bundle?) {
	super.onCreate(savedInstanceState)
	setContentView(R.layout.activity_home)
	setSupportActionBar(toolbar)

	fab.setOnClickListener {
	it.snack("Snack message") {
	action("Action") { toast("Action clicked") }

	import android.app.Activity;
	import android.content.Intent;
	import android.content.pm.PackageManager;
	import android.net.Uri;
	import android.os.Build;
	import android.preference.PreferenceManager;
	import android.provider.Settings;
	import android.support.v4.app.Fragment;

	import java.util.List;

	// This layout will display its children with rounded corners
	// It works with Glide image library placeholders and animations
	// It assumes your background is a solid color. If you need the corners to be truly transparent,
	// this solution will not work for you.

	package com.myapp.ui;

	import android.content.Context;
	import android.graphics.Bitmap;
	import android.graphics.Canvas;

	// app module build.gradle
	apply plugin: 'com.android.application'

	android {
	compileSdkVersion rootProject.compileSdkVersion
	buildToolsVersion rootProject.buildToolsVersion
	defaultConfig {
	applicationId "com.segunfamisa.gradleextraproperties"
	minSdkVersion rootProject.minSdkVersion
	targetSdkVersion rootProject.targetSdkVersion

	INSTALL JAVA
	$ sudo apt-get update && sudo apt-get install default-jre

	INSTALL ELASTIC SEARCH https://www.elastic.co/guide/en/elasticsearch/reference/current/setup-repositories.html
	$ wget -qO - https://packages.elastic.co/GPG-KEY-elasticsearch \| sudo apt-key add -
	$ echo "deb https://packages.elastic.co/elasticsearch/2.x/debian stable main" \| sudo tee -a /etc/apt/sources.list.d/elasticsearch-2.x.list
	$ sudo apt-get update && sudo apt-get install elasticsearch
	$ sudo update-rc.d elasticsearch defaults 95 10
	$ sudo service elasticsearch restart
	$ sudo service elasticsearch status

	apply plugin: 'com.android.application'
	apply plugin: 'android-apt'

	android {
	compileSdkVersion versions.compileSdk
	buildToolsVersion versions.buildTools

	defaultConfig {
	applicationId "samples.linhtruong.com.ui_reactive_rxjava_realm"
	minSdkVersion versions.minSdk