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class MainActivity : AppCompatActivity() {

    var shredPref:SharedPreferences?=null
    var editor:SharedPreferences.Editor?=null

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)

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class SecondActivity : AppCompatActivity() {

    var sharedPref:SharedPreferences?=null

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_second)

        sharedPref=getSharedPreferences(MainActivity.MY_PREF, Context.MODE_PRIVATE)

dharmakshetri

<RelativeLayout
    xmlns:ads="http://schemas.android.com/apk/res-auto"
    ...
    >

    <com.google.android.gms.ads.AdView
        android:id="@+id/adView"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_centerHorizontal="true"

dharmakshetri

import com.google.android.gms.ads.AdRequest;
import com.google.android.gms.ads.AdView;
// ...

public class MainActivity extends AppCompatActivity {

    private static final String TAG = "MainActivity";

    private AdView mAdView;
    // ...

dharmakshetri

class SpashScreen : AppCompatActivity() {
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_splash)

        val background = object : Thread() {
            override fun run() {
                try {
                    // Thread will sleep for 5 seconds
                    Thread.sleep((5 * 1000).toLong())

dharmakshetri

git cheat-sheet

The git command-line utility has plenty of inconsistencies http://steveko.wordpress.com/2012/02/24/10-things-i-hate-about-git/

A GUI like http://sourcetreeapp.com is often helpful, but staying on the command line usually quicker. This is a list of the commands I use most frequently, listed by funcional category:

current state

git status list which (unstaged) files have changed

dharmakshetri

// Top-level build file where you can add configuration options common to all sub-projects/modules.

buildscript {
    ext.kotlin_version = '1.1.2-4'
    repositories {
        google()
        jcenter()
        maven { url 'https://maven.fabric.io/public' }

    }

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apply plugin: 'com.android.application'

apply plugin: 'kotlin-android'

apply plugin: 'kotlin-android-extensions'

apply plugin: 'io.fabric'

android {
    compileSdkVersion 25

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 <uses-permission android:name="android.permission.INTERNET"/>
// below meta-data put inside application 
<meta-data
            android:name="io.fabric.ApiKey"
            android:value="f2e805224a70702d6e89da0d339c573e64d5ec91">
</meta-data>

dharmakshetri

package co.prandroid.fabricexample

import android.content.Intent
import android.support.v7.app.AppCompatActivity
import android.os.Bundle
import com.crashlytics.android.Crashlytics
import io.fabric.sdk.android.Fabric