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"   ...

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

In this tutorial, our focus is on making a User/Member login activity using fragments. With the help of Fragments we will use the same activity to show User login area and also Members Login area. Prerequisite for this tutorial: You should be know how to make an Activity And most importantly you should have prior Knowledge of Fragments. For practising basic Fragment implementation refer to Android Simple Fragment Example      We have used only three activities for this: MainActivity(which represents the Login Screen) Fragments for Members area Fragment for New Users

This is the most important and basic concept in Android. In Android, every activity has its on life cycle. An activity encountered the following methods in its life cycle. 1. onCreate() 2. onStart() 3. onResume() 4. onPause() 5. onStop() 6. onResume() 7. onDestroy()

An Activity is an application component that provides a screen with which users can interact in order to do something, such as dial the phone, take a photo, send an email, or view a map. Each activity is given a window in which to draw its user interface. The window typically fills the screen, but may be smaller than the screen and float on top of other windows.[1] http://developer.android.com/guide/components/activities.html [1 ] An Activity is a screen in which user perform some task. It might be capturing image, dialing phone number, typing text message etc. These all are the activities. Almost every screen with which users interact is an activity.