There are a few step to do, to open a new screen in android. You have to create an activity class, an xml layout, update AndroidManifest to know your second/third .. activity class, and put a code to call the new activity / screen.
An Activity class can be created with extending from Activity, ListActivity or other Activity class. Each Activity Class should have an xml layout as a view screen as a representation of the Activity Class.
Android Manifest should be updated to know the new activity / screen. so, when requested to show the new screen, it knows which class to execute.
At last you should put a piece of code to first screen, to show the new screen. Below is an example to open a new screen:
//screen1.java
package test.android;
import android.app.Activity;
import android.os.Bundle;
import android.content.Intent;
import android.widget.Button;
public class Screen1 extends Activity
{
public void onCreate(Bundle icicle)
{
super.onCreate(icicle);
setContentView(R.layout.screen1);
Button b = (Button) findViewById(R.id.btnClick);
b.setOnClickListener(new View.OnClickListener() {
public void onClick(View arg0) {
Intent i = new Intent(screen1.this, screen2.class);
startActivity(i);
}
});
}
}
//screen1.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="You are in the first Screen"
/>
<Button
id ="@+id/btnClick"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Open New Screen"
/>
</LinearLayout>
//screen2.java
package test.android;
import android.app.Activity;
import android.os.Bundle;
import android.widget.Button;
public class Screen2 extends Activity
{
public void onCreate(Bundle icicle)
{
super.onCreate(icicle);
setContentView(R.layout.screen2);
Button b = (Button) findViewById(R.id.btnClick2);
b.setOnClickListener(new View.OnClickListener() {
public void onClick(View arg0) {
setResult(RESULT_OK);
finish();
}
});
}
}
//screen2.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="You are in the New Screen"
/>
<Button
id ="@+id/btnClick2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Close"
/>
</LinearLayout>
//AndroidManifest.xml
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="test.android">
<application android:icon="@drawable/icon">
<activity class=".Screen1" android:label="Screen 1">
<intent-filter>
<action android:value="android.intent.action.MAIN" />
<category android:value="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity class=".Screen2" android:label="Screen 2">
</activity>
</application>
</manifest>
ok, Have a nice try!
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there too