Note: Before starting this program, it is expected that programmer should already create two activities with below names in androidmanifest.xml file.
Summary: This program will depict how to start one activity from other activity
File name: SubActivityActivity.java
package com.satishandroid.subactivity;
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;
//import
public class SubactivityActivity extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
Button b= (Button) findViewById(R.id.button1);
b.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
// TODO Auto-generated method stub
startActivity(new Intent(getApplicationContext(), SecondActivity.class));
}
});
//b.
}
}
——————————————————————————————————————
File name: SecondActivity.java
package com.satishandroid.subactivity;
import android.app.Activity;
import android.os.Bundle;
public class SecondActivity extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.secondactivity);
// TODO Auto-generated method stub
}
}
————————————————————————————————————
File name: Main.xml
<?xml version=“1.0″ encoding=“utf-8″?>
<LinearLayout xmlns:android=“http://schemas.android.com/apk/res/android”
android:orientation=“vertical”
android:layout_width=“fill_parent”
android:layout_height=“fill_parent”
>
<TextView
android:layout_width=“fill_parent”
android:layout_height=“wrap_content”
android:text=“@string/hello”
/>
<Button android:text=“Button” android:id=“@+id/button1″ android:layout_width=“wrap_content” android:layout_height=“wrap_content”></Button>
<TextView android:text=“TextView” android:textAppearance=“?android:attr/textAppearanceSmall” android:layout_height=“wrap_content” android:layout_width=“wrap_content” android:id=“@+id/textView1″></TextView>
</LinearLayout>
——————————————————————————————————————
File name: Secondactivity.xml
<?xml version=“1.0″ encoding=“utf-8″?>
<LinearLayout
xmlns:android=“http://schemas.android.com/apk/res/android”
android:orientation=“vertical”
android:layout_width=“match_parent”
android:layout_height=“match_parent”>
<TextView android:text=“Second activity is started”
android:id=“@+id/textView1″
android:layout_width=“wrap_content”
android:layout_height=“wrap_content”></TextView>
</LinearLayout>
