implementation 'cat.ereza:customactivityoncrash:2.3.0'

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent">
    <com.google.android.material.textview.MaterialTextView
        android:id="@+id/errorText"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="30dp"
        android:fontFamily="sans-serif"
        android:text="@string/ouch_something_went_wrong"
        android:textAppearance="@style/TextAppearance.AppCompat.Large"
        android:textStyle="bold" />
    <androidx.appcompat.widget.AppCompatImageView
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:src="@drawable/ic_error_img" />
    <com.google.android.material.button.MaterialButton
        android:id="@+id/restartApp"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentBottom="true"
        android:layout_centerHorizontal="true"
        android:layout_marginBottom="50dp"
        android:text="Restart App"
        android:textAllCaps="false" />
</RelativeLayout>

package com.example.customerrorscreen
import android.os.Bundle
import android.view.View
import androidx.appcompat.app.AppCompatActivity
import cat.ereza.customactivityoncrash.CustomActivityOnCrash
import kotlinx.android.synthetic.main.activity_error.*
class ErrorActivity : AppCompatActivity() {
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_error)
        /** you can log the reason of crash by adding this line of code
         *  CustomActivityOnCrash.getStackTraceFromIntent(intent)
         */
        //getting crashing intent
        val config = CustomActivityOnCrash.getConfigFromIntent(intent)
        /**
         * If config is null or not getting an intent simply finish the app
         */
        if (config == null) {
            finish()
            return
        }
        if (config.isShowRestartButton && config.restartActivityClass != null) {
            restartApp.text = "Restart App"
            restartApp.setOnClickListener {
                CustomActivityOnCrash.restartApplication(
                    this,
                    config
                )
            }
        } else {
            restartApp.text = "Close App"
            restartApp.setOnClickListener {
                CustomActivityOnCrash.closeApplication(
                    this,
                    config
                )
            }
        }
    }
}

package com.example.customerrorscreen
import android.app.Application
import cat.ereza.customactivityoncrash.config.CaocConfig
/**
* Created by  Mustufa on 04/11/2020.
* Email : mustufaayub82@gmail.com
*/
class MyApp : Application() {
    override fun onCreate() {
        super.onCreate()
        CaocConfig.Builder.create()
            .trackActivities(true)
            .errorActivity(ErrorActivity::class.java)
            .apply()
    }
}

var array = mutableListOf<String>()
array[0] = "Hello"
findViewById<TextView>(R.id.textView).text = array[1]