How to make our own HOME-SCREEN & take only one button/icon on Home Screen in Android?

I just want to make my own HOME-SCREEN in android. I also want to call that HOME-SCREEN f开发者_开发知识库rom my Activity. How to achieve it? I just want to put one button on that HOME-SCREEN.

So, please tell me the exact solution. I have read this content from this dev site. but I am getting actual process to make our Home-Screen in dev site. Home code doesn't have Activity class and all so I am not understanding. Can any one please help me to understand this concept?

Thanks in advance.

---

The key is in the AndroidManifest.xml file. In there is where you tell android that this application is meant to be a home app:

    <activity android:name="Home"
            android:theme="@style/Theme"
            android:launchMode="singleInstance"
            android:stateNotNeeded="true">
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />
            <category android:name="android.intent.category.HOME"/>
            <category android:name="android.intent.category.DEFAULT" />
        </intent-filter>
    </activity>

The class extending Activity is Home itself: http://developer.android.com/resources/samples/Home/src/com/example/android/home/Home.html

public class Home extends Activity {
// many lines chopped
   @Override
    public void onCreate(Bundle icicle) {
        super.onCreate(icicle);
// many lines chopped
    }
    @Override
    protected void onNewIntent(Intent intent) {
        super.onNewIntent(intent);
        // Close the menu
        if (Intent.ACTION_MAIN.equals(intent.getAction())) {
            getWindow().closeAllPanels();
        }
    }

    @Override
    public void onDestroy() {
        super.onDestroy();
// many lines chopped
    }
// many lines chopped etc
}