1- İlk Uygulama Buton, Edittext, Textview ve Intent Kullanımı
activity_main.xml dosyası
Mainactivity.java dosyası
import android.widget.EditText;
import android.widget.TextView;
import static com.example.f_marasli.myapplication.R.id.sayi1;
import static com.example.f_marasli.myapplication.R.id.sayi2;
public class MainActivity extends AppCompatActivity { @Override
protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Thread suzan = new Thread() { public void run() { try {
sleep(5000);
//5 saniye sonunda class davet et.
startActivity(new
Intent(getApplicationContext(),fatih_acti.class));
}
catch (InterruptedException e) {
e.printStackTrace();
}
finally {
finish();
} } };
suzan.start();
final EditText sayim1 = (EditText)findViewById(sayi1);
final EditText sayim2 = (EditText)findViewById(sayi2);
final TextView sonucum = (TextView)findViewById(R.id.sonuc);
Button hesaplama = (Button)findViewById(R.id.hesapla);
hesaplama.setOnClickListener(new View.OnClickListener(){
public void onClick(View v) {
float a = Float.parseFloat(sayim1.getText().toString());
float b = Float.parseFloat(sayim2.getText().toString());
sonucum.setText(String.valueOf(a+b));
} });
Button git = (Button)findViewById(R.id.gitbuton);
git.setOnClickListener(new View.OnClickListener(){
public void onClick(View v) {
Intent fatih = new Intent(MainActivity.this, fatih_acti.class);
//Butona basinca intent ile bu activityden yeni activitye git
MainActivity.this.startActivity(fatih);//intent’i başlat MainActivity.this.finish();
} });
} }
fatih_activity.xml dosyası
fatih_acti.java dosyası
package com.example.f_marasli.myapplication;
/**
* Created by f_marasli on 18.10.2017.
*/
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.ImageButton;
import android.widget.Toast;
public class fatih_acti extends Activity{
public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState);
setContentView(R.layout.fatih_activity);
ImageButton resim = (ImageButton) findViewById(R.id.imgbut);
resim.setOnClickListener(new View.OnClickListener(){
public void onClick(View v) {
Intent anacim = new Intent(fatih_acti.this, MainActivity.class);
//Butona basinca intent ile bu activityden yeni activitye git
fatih_acti.this.startActivity(anacim);//intent’i başlat fatih_acti.this.finish();
} });
} }
Ve gerekli izinlerin yapıldığı AndroidManifest.xml dosyası
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.f_marasli.myapplication">
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:roundIcon="@mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="@style/AppTheme">
<activity android:name=".MainActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER"
/>
</intent-filter>
</activity>
<activity android:name=".fatih_acti" android:label="My Application">
</activity>
</application>
</manifest>
