Android Tutorial - Android Development Guru

Hello everyone, As this is a quite confusing for everyone to generate the key hash in your PC, so i decided to write about it. I have also tried many ways but every time i failed to generate the key hash. After trying for an hour i successfully generated the key. Just follow the below given Steps and you are done with this. Step I: Download Openssl from   here Step II: Download openssl-0.9.8e_X64.zip for 64 bit PC and openssl-0.9.8e_WIN32.zip for 32 bit PC Step III: once your download the zip folder. Go to C drive(where window is installed) and make a folder named openssl Step IV: extract all zip file in this folder. Step V: Now go to Java folder and copy path of jre. For example: C:\Program Files\Java\jre1.8.0_101\bin

activity_main.xml <?xml version="1.0" encoding="utf-8"?> <android.support.v4.widget.DrawerLayout     xmlns:android="http://schemas.android.com/apk/res/android"     xmlns:tools="http://schemas.android.com/tools"     android:id="@+id/drawer_layout"     android:layout_width="match_parent"     android:layout_height="match_parent"     tools:context="com.example.johnwick.navigation_drawer.MainActivity">     <FrameLayout         android:id="@+id/content_frame"         android:layout_width="match_parent"         android:layout_height="match_parent"/>     <ListView         android:id="@+id/left_drawer"         android:layout_width="240dp"         android:layout_height="match_parent"         android:layout_gravity="start"         android:background="#ACC"         android:choiceMode="sin

Well, this is the most necessary and initial part in android development. One should have knowledge about creating an Activity. It represents a single screen of your application, for more details check this Article on  Activity  and  Activity Life Cycle Every activity in android consist two files. One is JAVA file and another is XML fie. JAVA file helps you implement the functionality of components that you defined in your XML file. To create an layout you should have an XML file. This is the file where you create an user interface for your activity. There are two approaches to create an Activity: 1. Create both the files(JAVA & XML) separately and define it in Manifest file a) In android studio, Select File Tab and click New