Activity ler arasında geçiş

Activity1.java

package cem.examples.activityswitch;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;

public class Activity1 extends Activity implements OnClickListener {

 @Override
 protected void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);this.setContentView(R.layout.main);
// ------------------------------------------------------
  Button btn = (Button) findViewById(R.id.button1);
  btn.setOnClickListener(this);
 }

 @Override
 public void onClick(View v) {
  Intent myint = new Intent(v.getContext(),Activity2.class);
  startActivityForResult(myint, 0);
 }
}

Activity2.java

package cem.examples.activityswitch;

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup.LayoutParams;
import android.widget.Button;
import android.widget.LinearLayout;

public class Activity2 extends Activity implements OnClickListener {

 @Override
 protected void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  this.setContentView(R.layout.activite2);
// --------------------------------------------------------------
  Button btnPre = new Button(this);
  btnPre.setText("Geriiiii");
  // Butonun layout üzerinde alacağı görünüm parametreleri
  LayoutParams params = new LayoutParams(
    LayoutParams.MATCH_PARENT,
    LayoutParams.MATCH_PARENT);
// --------------------------------------------------------------
  LinearLayout layout = (LinearLayout) findViewById(R.id.lout);
  layout.addView(btnPre, params);
// --------------------------------------------------------------
  // Önceki aktiviteye gidelim.
  btnPre.setOnClickListener(this);
 }

 @Override
 public void onClick(View v) {
  // Call this to set the result that your activity will return to its caller.
  setResult(RESULT_OK);
  // Call this when your activity is done and should be closed
  finish();
 }
}

AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
 package="cem.examples.activityswitch" android:versionCode="1"
 android:versionName="1.0">
 <uses-sdk android:minSdkVersion="8" />

 <application android:icon="@drawable/icon" android:label="@string/app_name">

  <activity android:name=".Activity1" android:label="Activite Etiketi"
   android:screenOrientation="portrait">
   <intent-filter>
    <action android:name="android.intent.action.MAIN" />
    <category android:name="android.intent.category.LAUNCHER" />
   </intent-filter>
  </activity>
  <activity android:name=".Activity2"></activity>
 </application>
</manifest>