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POError in starting Android activity
 

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    <p>In the MainActivity class within a switch statement I declared and initialised an Intent to begin another activity. Here is the snippet:</p> <pre><code>case MESSAGE_DEVICE_NAME: //save connected device name mConnectedDeviceName = msg.getData().getString(DEVICE_NAME); Toast.makeText(getApplicationContext(), "Connected to "+mConnectedDeviceName, Toast.LENGTH_SHORT).show(); Intent medPlay = new Intent(MainActivity.this, MediaPlayer.class); startActivity(medPlay); break; </code></pre> <p>Here is the MediaPlayer class:</p> <pre><code>public class MediaPlayer extends Activity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.media_player); } } </code></pre> <p>Here is the AndroidManifest.xml: </p> <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt; &lt;manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.example.bt" android:versionCode="1" android:versionName="1.0" &gt; &lt;uses-permission android:name="android.permission.BLUETOOTH" /&gt; &lt;uses-permission android:name="android.permission.BLUETOOTH_ADMIN" /&gt; &lt;uses-sdk android:minSdkVersion="6" android:targetSdkVersion="10" /&gt; &lt;application android:allowBackup="true" android:icon="@drawable/ic_launcher" android:label="@string/app_name" android:theme="@style/AppTheme" &gt; &lt;activity android:name="com.example.bt.MainActivity" android:label="@string/app_name" &gt; &lt;intent-filter&gt; &lt;action android:name="android.intent.action.MAIN" /&gt; &lt;category android:name="android.intent.category.LAUNCHER" /&gt; &lt;/intent-filter&gt; &lt;/activity&gt; &lt;activity android:name=".DeviceListActivity" android:configChanges="orientation|keyboardHidden" android:label="@string/select_device" android:theme="@android:style/Theme.Light" /&gt; &lt;activity android:name=".MediaPlayer" android:configChanges="orientation|keyboardHidden" android:label="@string/media_player" android:theme="@android:style/Theme.Light" /&gt; &lt;/application&gt; &lt;/manifest&gt; </code></pre> <p>However I keep getting this error on LogCat Console:</p> <blockquote> <p>12-31 12:39:52.475: E/AndroidRuntime(25978): FATAL EXCEPTION: main 12-31 12:39:52.475: E/AndroidRuntime(25978): android.content.ActivityNotFoundException: Unable to find explicit activity class {com.example.bt/android.media.MediaPlayer}; have you declared this activity in your AndroidManifest.xml? 12-31 12:39:52.475: E/AndroidRuntime(25978): at android.app.Instrumentation.checkStartActivityResult(Instrumentation.java:1405) 12-31 12:39:52.475: E/AndroidRuntime(25978): at android.app.Instrumentation.execStartActivity(Instrumentation.java:1379) 12-31 12:39:52.475: E/AndroidRuntime(25978): at android.app.Activity.startActivityForResult(Activity.java:2893) 12-31 12:39:52.475: E/AndroidRuntime(25978): at android.app.Activity.startActivity(Activity.java:3003) 12-31 12:39:52.475: E/AndroidRuntime(25978): at com.example.bt.MainActivity$1.handleMessage(MainActivity.java:147) 12-31 12:39:52.475: E/AndroidRuntime(25978): at android.os.Handler.dispatchMessage(Handler.java:99) 12-31 12:39:52.475: E/AndroidRuntime(25978): at android.os.Looper.loop(Looper.java:130) 12-31 12:39:52.475: E/AndroidRuntime(25978): at android.app.ActivityThread.main(ActivityThread.java:3806) 12-31 12:39:52.475: E/AndroidRuntime(25978): at java.lang.reflect.Method.invokeNative(Native Method) 12-31 12:39:52.475: E/AndroidRuntime(25978): at java.lang.reflect.Method.invoke(Method.java:507) 12-31 12:39:52.475: E/AndroidRuntime(25978): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839) 12-31 12:39:52.475: E/AndroidRuntime(25978): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597) 12-31 12:39:52.475: E/AndroidRuntime(25978): at dalvik.system.NativeStart.main(Native Method)</p> </blockquote>
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