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POjava.lang.RuntimeException: Unable to instantiate receiver : java.lang.ClassNotFoundException
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  1. POjava.lang.RuntimeException: Unable to instantiate receiver : java.lang.ClassNotFoundException
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    copied!<ul> <li>I have tried to implement Auto Answer in my project using telephony manager and BroadCastReceiver . </li> <li>Its working fine But Unfortuantly the APP Crashes when i power on mobile again. Herewith I have attached my code and manifest file also.kindly can any one help us for a solution</li> </ul> <hr> <p><strong>Code :</strong></p> <p><strong>AutoAnswerReceiver .java</strong></p> <pre><code>public class AutoAnswerReceiver extends BroadcastReceiver { SharedPreferences mPrefs; static String PREFS_NAMES = "AutoAnswer"; @Override public void onReceive(Context context, Intent intent) { mPrefs = context.getSharedPreferences(PREFS_NAMES, 0); String AutoResult = mPrefs.getString("AutoAnswer", "FALSE"); // Check phone state String phone_state = intent.getStringExtra(TelephonyManager.EXTRA_STATE); String number = intent.getStringExtra(TelephonyManager.EXTRA_INCOMING_NUMBER); if (phone_state.equals(TelephonyManager.EXTRA_STATE_RINGING) &amp;&amp; AutoResult.equals("TRUE")) { context.startService(new Intent(context, AutoAnswerIntentService.class)); } } **AutoAnswerIntentService** public class AutoAnswerIntentService extends IntentService { public AutoAnswerIntentService() { super("AutoAnswerIntentService"); } @Override protected void onHandleIntent(Intent intent) { Context context = getBaseContext(); // Let the phone ring for a set delay try { Thread.sleep(Integer.parseInt("5") * 1000); } catch (InterruptedException e) { // We don't really care } // Make sure the phone is still ringing TelephonyManager tm = (TelephonyManager) context.getSystemService(Context.TELEPHONY_SERVICE); if (tm.getCallState() != TelephonyManager.CALL_STATE_RINGING) { return; } // Answer the phone try { answerPhoneAidl(context); } catch (Exception e) { e.printStackTrace(); Log.d("AutoAnswer","Error trying to answer using telephony service. Falling back to headset."); answerPhoneHeadsethook(context); } // Enable the speakerphone enableSpeakerPhone(context); return; } private void enableSpeakerPhone(Context context) { AudioManager audioManager = (AudioManager) context.getSystemService(Context.AUDIO_SERVICE); audioManager.setSpeakerphoneOn(true); } private void answerPhoneHeadsethook(Context context) { // Simulate a press of the headset button to pick up the call Intent buttonDown = new Intent(Intent.ACTION_MEDIA_BUTTON); buttonDown.putExtra(Intent.EXTRA_KEY_EVENT, new KeyEvent(KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_HEADSETHOOK)); context.sendOrderedBroadcast(buttonDown, "android.permission.CALL_PRIVILEGED"); // froyo and beyond trigger on buttonUp instead of buttonDown Intent buttonUp = new Intent(Intent.ACTION_MEDIA_BUTTON); buttonUp.putExtra(Intent.EXTRA_KEY_EVENT, new KeyEvent(KeyEvent.ACTION_UP, KeyEvent.KEYCODE_HEADSETHOOK)); context.sendOrderedBroadcast(buttonUp, "android.permission.CALL_PRIVILEGED"); } @SuppressWarnings("unchecked") private void answerPhoneAidl(Context context) throws Exception { // Set up communication with the telephony service (thanks to Tedd's Droid Tools!) TelephonyManager tm = (TelephonyManager) getSystemService(TELEPHONY_SERVICE); Class c = Class.forName(tm.getClass().getName()); Method m = c.getDeclaredMethod("getITelephony"); m.setAccessible(true); ITelephony telephonyService; telephonyService = (ITelephony)m.invoke(tm); // Silence the ringer and answer the call! telephonyService.silenceRinger(); telephonyService.answerRingingCall(); } } </code></pre> <p><strong>Manifestfile</strong></p> <pre><code>&lt;receiver android:name=".AutoAnswerReceiver" android:enabled="true"&gt; &lt;intent-filter&gt; &lt;action android:name="android.intent.action.PHONE_STATE" /&gt; &lt;/intent-filter&gt; &lt;/receiver&gt; &lt;receiver android:name=".AutoAnswerBootReceiver" android:enabled="true"&gt; &lt;intent-filter&gt; &lt;action android:name="android.intent.action.BOOT_COMPLETED" /&gt; &lt;/intent-filter&gt; &lt;/receiver&gt; &lt;service android:name="AutoAnswerIntentService" /&gt; </code></pre> <p>It works fine when app is running.But in case of power on stage it shows the error like</p> <p><strong>ERROR</strong></p> <pre><code>03-30 09:54:22.013: E/AndroidRuntime(200): Uncaught handler: thread main exiting due to uncaught exception 03-30 09:54:22.023: E/AndroidRuntime(200): java.lang.RuntimeException: Unable to instantiate receiver com.slet.routemytrips.beta.AutoAnswerBootReceiver: java.lang.ClassNotFoundException: com.slet.routemytrips.beta.AutoAnswerBootReceiver in loader dalvik.system.PathClassLoader@43b7dfd8 03-30 09:54:22.023: E/AndroidRuntime(200): at android.app.ActivityThread.handleReceiver(ActivityThread.java:2616) 03-30 09:54:22.023: E/AndroidRuntime(200): at android.app.ActivityThread.access$3100(ActivityThread.java:119) 03-30 09:54:22.023: E/AndroidRuntime(200): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1913) 03-30 09:54:22.023: E/AndroidRuntime(200): at android.os.Handler.dispatchMessage(Handler.java:99) 03-30 09:54:22.023: E/AndroidRuntime(200): at android.os.Looper.loop(Looper.java:123) 03-30 09:54:22.023: E/AndroidRuntime(200): at android.app.ActivityThread.main(ActivityThread.java:4363) 03-30 09:54:22.023: E/AndroidRuntime(200): at java.lang.reflect.Method.invokeNative(Native Method) 03-30 09:54:22.023: E/AndroidRuntime(200): at java.lang.reflect.Method.invoke(Method.java:521) 03-30 09:54:22.023: E/AndroidRuntime(200): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:860) 03-30 09:54:22.023: E/AndroidRuntime(200): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:618) 03-30 09:54:22.023: E/AndroidRuntime(200): at dalvik.system.NativeStart.main(Native Method) 03-30 09:54:22.023: E/AndroidRuntime(200): Caused by: java.lang.ClassNotFoundException: com.slet.routemytrips.beta.AutoAnswerBootReceiver in loader dalvik.system.PathClassLoader@43b7dfd8 03-30 09:54:22.023: E/AndroidRuntime(200): at dalvik.system.PathClassLoader.findClass(PathClassLoader.java:243) 03-30 09:54:22.023: E/AndroidRuntime(200): at java.lang.ClassLoader.loadClass(ClassLoader.java:573) 03-30 09:54:22.023: E/AndroidRuntime(200): at java.lang.ClassLoader.loadClass(ClassLoader.java:532) 03-30 09:54:22.023: E/AndroidRuntime(200): at android.app.ActivityThread.handleReceiver(ActivityThread.java:2609) 03-30 09:54:22.023: E/AndroidRuntime(200): ... 10 more 03-30 09:54:22.083: I/Process(51): Sending signal. PID: 200 SIG: 3 03-30 09:54:22.102: I/dalvikvm(200): threadid=7: reacting to signal 3 03-30 09:54:22.102: E/dalvikvm(200): Unable to open stack trace file '/data/anr/traces.txt': Permission denied </code></pre>
 

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