Notes

--------menulu hesap makinesi-----------
menü için app-res-menu-menu_main tasarımı burdan yap
activity_main den mektup simgesini sil

main_activity den şunu sil

fab.setOnClickListener { view ->
Snackbar.make(view, "Replace with your own action", Snackbar.LENGTH_LONG)
.setAction("Action", null).show()
}
-------------------
main_activity

package com.example.serhan.myapplication

import android.os.Bundle
import android.support.design.widget.Snackbar
import android.support.v7.app.AppCompatActivity;
import android.view.Menu
import android.view.MenuItem

import kotlinx.android.synthetic.main.activity_main.*
import kotlinx.android.synthetic.main.content_main.*

class MainActivity : AppCompatActivity() {


var sonuc=0
var sayi1=0
var sayi2=0
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_main)
setSupportActionBar(toolbar)


}

override fun onCreateOptionsMenu(menu: Menu): Boolean {
// Inflate the menu; this adds items to the action bar if it is present.
menuInflater.inflate(R.menu.menu_main, menu)
return true
}

override fun onOptionsItemSelected(item: MenuItem): Boolean {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
sayi1=eTxtSayi1.text.toString().toInt()
sayi2=eTxtSayi2.text.toString().toInt()

return when (item.itemId) {
R.id.Topla -> {
sonuc=sayi1+sayi2
txtSonuc.text=sonuc.toString()
true
}
R.id.Cikar->{
sonuc=sayi1-sayi2
txtSonuc.text=sonuc.toString()
true
}
R.id.Bol->{
sonuc=sayi1/sayi2
txtSonuc.text=sonuc.toString()
true
}
R.id.Carp->{
sonuc=sayi1*sayi2
txtSonuc.text=sonuc.toString()
true
}
else->super.onOptionsItemSelected(item)

}
}
}


-----------------sürekli resim degistirme--------------------

main activity

var sayac=0
btnResim.setOnClickListener{ it:view!
if(sayac==0){
ivResim.setImageResource(R.mipmap.sero_launcher)
sayac++
}else if (sayac==1){
ivResim.setImageResource(R.mipmap.sero_layer)
sayac++
}else {
ivResim.setImageResource(R.drawable.resim1)
sayac=0
}
}



-----------------------------------------------------------------------
RASTGELE SAYI ÜRETME MAİN ACTİVİTY
package com.example.isim.rasgelesayi

import android.graphics.Color
import android.support.v7.app.AppCompatActivity
import android.os.Bundle
import android.widget.ArrayAdapter
import android.widget.Toast
import kotlinx.android.synthetic.main.activity_main.*
import java.util.*

class MainActivity : AppCompatActivity() {

override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_main)
var Limit= arrayOf("100","200","300","400")
var Adap = ArrayAdapter<String>(this,android.R.layout.simple_spinner_item,Limit)
spinnerAltSinir.adapter=Adap
spinnerUstLimir.adapter=Adap
spinnerUstLimir.setSelection(Limit.size-1)
var UretilenSayi=0
buttonSayiUret.setOnClickListener {
UretilenSayi=SayiUret(spinnerAltSinir.selectedItem.toString().toInt(),spinnerUstLimir.selectedItem.toString().toInt())
}
buttonDene.setOnClickListener {
var Deger=editTextTSayi.text.toString().toInt()
if (UretilenSayi<Deger){
Ekran.setBackgroundColor(Color.BLUE)
Toast.makeText(this,"Sayıyı Azalt",Toast.LENGTH_SHORT).show()
}
else if (UretilenSayi>Deger){
Ekran.setBackgroundColor(Color.YELLOW)
Toast.makeText(this,"Sayıyı Yükselt",Toast.LENGTH_SHORT).show()
}
else{
Ekran.setBackgroundColor(Color.GREEN)
Toast.makeText(this,"Tebrikler Bildiniz.",Toast.LENGTH_SHORT).show()
}
}
buttonPesEt.setOnClickListener {
Toast.makeText(this,"Bilemediğiniz Sayi :"+UretilenSayi,Toast.LENGTH_LONG).show()
UretilenSayi=SayiUret(spinnerAltSinir.selectedItem.toString().toInt(),spinnerUstLimir.selectedItem.toString().toInt())

}

}

fun SayiUret(BaslangicDegeri:Int,BitisDegeri:Int):Int{
var rand =Random()
var number=rand.nextInt(BitisDegeri)
while (number<spinnerAltSinir.selectedItem.toString().toInt()){
number=rand.nextInt(BitisDegeri)
}
return number

}
}

-----------------------------------------------------------------------------------
MENULU HESAP MAKİNASI
MAİN ACTİVİTY
package com.example.isim.menuhesapmakinesi

import android.os.Bundle
import android.support.design.widget.Snackbar
import android.support.v7.app.AppCompatActivity
import android.view.Menu
import android.view.MenuItem

import kotlinx.android.synthetic.main.activity_main.*
import kotlinx.android.synthetic.main.content_main.*

class MainActivity : AppCompatActivity() {

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

}

override fun onCreateOptionsMenu(menu: Menu): Boolean {
// Inflate the menu; this adds items to the action bar if it is present.
menuInflater.inflate(R.menu.menu_main, menu)
return true
}

override fun onOptionsItemSelected(item: MenuItem): Boolean {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
return when (item.itemId) {
R.id.Topla ->{//Topla Tıklandığında bu Kodlar çalışacak
textViewSonuc.text=(editTextSayi1.text.toString().toDouble()+editTextSayi2.text.toString().toDouble()).toString()
true
}
R.id.Cikar->{
textViewSonuc.text=(editTextSayi1.text.toString().toDouble()-editTextSayi2.text.toString().toDouble()).toString()
true
}
R.id.Carp->{
textViewSonuc.text=(editTextSayi1.text.toString().toDouble()*editTextSayi2.text.toString().toDouble()).toString()
true
}
R.id.Bol->{
textViewSonuc.text=(editTextSayi1.text.toString().toDouble()/editTextSayi2.text.toString().toDouble()).toString()
true
}
R.id.Temizle->{
textViewSonuc.text=""
editTextSayi1.text= null
editTextSayi2.text=null
true
}
else -> super.onOptionsItemSelected(item)
}
}
}

-----------------------------------------------------------------
MENULU YAPILACAKLAR MUTABLE LİSTELİ
MAİN ACTİVİTY
package com.example.isim.menuyapilacaklar

import android.os.Bundle
import android.support.design.widget.Snackbar
import android.support.v7.app.AppCompatActivity
import android.view.Menu
import android.view.MenuItem
import android.widget.ArrayAdapter
import android.widget.Toast

import kotlinx.android.synthetic.main.activity_main.*
import kotlinx.android.synthetic.main.content_main.*

class MainActivity : AppCompatActivity() {
var _List= mutableListOf<String>()
lateinit var Adap:ArrayAdapter<String>
var SecilenItem:String=""
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_main)
setSupportActionBar(toolbar)
Adap=ArrayAdapter<String>(this,android.R.layout.simple_selectable_list_item,_List)
_ListView.adapter=Adap
_ListView.setOnItemClickListener { parent, view, position, id ->

SecilenItem=_List[position]
Toast.makeText(this,SecilenItem,Toast.LENGTH_LONG).show()
}
}

override fun onCreateOptionsMenu(menu: Menu): Boolean {
// Inflate the menu; this adds items to the action bar if it is present.
menuInflater.inflate(R.menu.menu_main, menu)
return true
}

override fun onOptionsItemSelected(item: MenuItem): Boolean {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
return when (item.itemId) {
R.id.isEkle->{//Menu Butonuna Tılandığın çalışacak kodlar

var IS:String= editTextIs.text.toString()
if (IS!=""){
_List.add(IS)
_ListView.adapter=Adap
// _List.add(editTextIs.text.toString())
}
else{
Toast.makeText(this,"Bir İş tanımı giriniz",Toast.LENGTH_LONG).show()
}


true
}
R.id.isSil ->{
_List.remove(SecilenItem)
_ListView.adapter=Adap
true
}
R.id.Cikisi ->{
//System.exit(0)
finish()

true
}
else -> super.onOptionsItemSelected(item)
}
}
}
--------------------------------------------------------------------------
VİZE - FİNAL SPİNNERLI
MAİN ACTİVİTY (1. SAYFA )
package com.example.isim.vizefinal

import android.content.Intent
import android.support.v7.app.AppCompatActivity
import android.os.Bundle
import android.widget.ArrayAdapter
import android.widget.Toast
import kotlinx.android.synthetic.main.activity_main.*

class MainActivity : AppCompatActivity() {

override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_main)
var NotlarDizi= arrayOf("10","20","30","40","50","60","70","80","90","100")
var NotlarListe= listOf<String>("10","20","30","40","50","60","70","80","90","100")
var AdapDizi=ArrayAdapter(this,android.R.layout.simple_spinner_item,NotlarDizi)
var AdapListe=ArrayAdapter(this,android.R.layout.simple_spinner_item,NotlarListe)
spinnerVize.adapter=AdapDizi//Oluşturduğumuz Adaptor'ü Belirttik
spinnerFinal.adapter=AdapListe//Oluşturduğumuz Adaptor'ü Belirttik
button.setOnClickListener {
Toast.makeText(this,"Buttona basıldı",Toast.LENGTH_SHORT).show()
var Vize=spinnerVize.selectedItem.toString().toDouble()
//var Final=spinnerFinal.selectedItem.toString().toDouble()
var _intent=Intent(this,Main2Activity::class.java)
_intent.putExtra("Vize",Vize)
_intent.putExtra("Final",spinnerFinal.selectedItem.toString().toDouble())
startActivity(_intent)
}



}
}


ACTİVİTY MAİN 2 (2. SAYFA )
package com.example.isim.vizefinal

import android.graphics.Color
import android.support.v7.app.AppCompatActivity
import android.os.Bundle
import kotlinx.android.synthetic.main.activity_main2.*

class Main2Activity : AppCompatActivity() {

override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_main2)
DegerYaz()
var Bnot=DegerDon()
textViewDegerDon.text=Bnot.toString()
HarfNotuHesaplaRenkVer(Bnot)
}
fun HarfNotuHesaplaRenkVer(Bnot:Double){
when(Bnot) {
in 0..30 ->{
textViewHarfNotu.text="FF"
Ekran.setBackgroundColor(Color.RED)
}
in 30..60 ->{
textViewHarfNotu.text="CC"
Ekran.setBackgroundColor(Color.MAGENTA)

}
in 60..80 -> {
textViewHarfNotu.text="BB"
Ekran.setBackgroundColor(Color.BLUE)

}
in 80..100->{
textViewHarfNotu.text="AA"
Ekran.setBackgroundColor(Color.GREEN)
}
}
}
fun DegerYaz(){
var Vize=intent.getDoubleExtra("Vize",0.0)
var Final=intent.getDoubleExtra("Final",0.0)
textViewDegerYaz.text=(Vize*0.40+Final*0.60).toString()
}
fun DegerDon():Double{
var Vize=intent.getDoubleExtra("Vize",0.0)
var Final=intent.getDoubleExtra("Final",0.0)
return (Vize*0.40+Final*0.60)

}
}