add class to manifest.xml

Question

I'm trying to run the sample in this tutorial : http://www.devx.com/wireless/Article/42482/0/page/1?comment=61407-0#comment61407-0
it seems to run fine in the emulator(I'm not sure cause the application uses the camera and it can't be shown in the emulator) . but when I try to run it on my device ( Nexus S) it forces to stop the application. the application has only two files , one main activity and another class called CustonCameraView.java which is used in the main activity . should I somehow add this class to the manifest.xml file ?
thanks
this is my manifest.xml file :

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
      package="com.smtabatabaie.locationAR"
      android:versionCode="1"
      android:versionName="1.0">
    <uses-sdk android:minSdkVersion="10" />
    <uses-permission android:name="android.permission.CAMERA"></uses-permission>
    <uses-feature android:name="android.hardware.camera" />
    <uses-feature android:name="android.hardware.camera.autofocus" />

    <application android:icon="@drawable/icon" android:label="@string/app_name">
        <!-- <uses-permission android:name="android.permission.CAMERA" /> -->
        <activity android:name=".main"
                  android:label="@string/app_name">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>

    </application>
</manifest>

Answer 1

have you added all necessary permissions to your manifest.xml?

according to http://developer.android.com/reference/android/hardware/Camera.html you would have to add the following 3 permissions:

<uses-permission android:name="android.permission.CAMERA" />
<uses-feature android:name="android.hardware.camera" />
<uses-feature android:name="android.hardware.camera.autofocus" />

could you please add the Logcat error message so that we can see what is causing the force close in the first place?