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POAndroid: App has stopped working issue
 

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  1. POAndroid: App has stopped working issue
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    <p>i have added a side options menu in my app with back, refresh, forward &amp; about options, but whenever i click on any of those buttons my app stop working, please help me.</p> <p>If possible please highlight the part of the code which is wrong..</p> <p>Code:</p> <pre><code>public class MainActivity extends Activity { WebView myWebView; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); //setContentView(R.layout.main); // Let's display the progress in the activity title bar, like the // browser app does. getWindow().requestFeature(Window.FEATURE_PROGRESS); WebView webview = new WebView(this); setContentView(webview); webview.getSettings().setJavaScriptEnabled(true); webview.setDownloadListener(new DownloadListener() { public void onDownloadStart(String url, String userAgent, String contentDisposition, String mimetype, long contentLength) { Intent i = new Intent(Intent.ACTION_VIEW); i.setData(Uri.parse(url)); startActivity(i); } }); webview.setOnKeyListener(new View.OnKeyListener() { @Override public boolean onKey(View v, int keyCode, KeyEvent event) { if(event.getAction() == KeyEvent.ACTION_DOWN) { WebView webView = (WebView) v; switch(keyCode) { case KeyEvent.KEYCODE_BACK: if(webView.canGoBack()) { webView.goBack(); return true; } break; } } return false; } }); final Activity activity = this; webview.setWebChromeClient(new WebChromeClient() { public void onProgressChanged(WebView view, int progress) { // Activities and WebViews measure progress with different scales. // The progress meter will automatically disappear when we reach 100% activity.setProgress(progress * 1000); } }); webview.setWebViewClient(new WebViewClient() { public void onReceivedError(WebView view, int errorCode, String description, String failingUrl) { //Users will be notified in case there's an error (i.e. no internet connection) Toast.makeText(activity, "Oh no! " + description, Toast.LENGTH_SHORT).show(); } }); //This will load the webpage that we want to see webview.loadUrl("http://www.xxxxx.com"); } @Override public boolean onCreateOptionsMenu(Menu menu) { super.onCreateOptionsMenu(menu); // Add menu items, second value is the id, use this in the onCreateOptionsMenu menu.add(0, 1, 0, "Back"); menu.add(0, 2, 0, "Refresh"); menu.add(0, 3, 0, "Forward"); menu.add(0, 4, 0, "About"); return true; // End of menu configuration } public boolean onOptionsItemSelected(MenuItem item){ // Called when you tap a menu item switch (item.getItemId()){ case 1: //If the ID equals 1, go back if (myWebView.canGoBack()){ myWebView.goBack(); return true; } case 2 : //If the ID equals 2, refresh myWebView.reload(); return true; case 3: //If the ID equals 3, go forward if (myWebView.canGoForward()){ myWebView.goForward(); return true; } case 4: //aha showing about us myWebView.loadUrl("http://example.com/about.php"); } return false; } @Override public boolean onKeyDown(int keyCode, KeyEvent event) { // Enables browsing to previous pages with the hardware back button WebView webView = new WebView(this); if ((keyCode == KeyEvent.KEYCODE_BACK) &amp;&amp; webView.canGoBack()) { // Check if the key event was the BACK key and if there's history webView.goBack(); return true; } // If it wasn't the BACK key or there's no web page history, bubble up to the default // system behavior (probably exit the activity) return super.onKeyDown(keyCode, event); } } </code></pre> <p>Here is the log:</p> <pre><code>08-04 12:38:25.319 37-37/? E/SurfaceFlinger: ro.sf.lcd_density must be defined as a build property 08-04 12:38:28.687 3589-3589/com.example D/AndroidRuntime: Shutting down VM 08-04 12:38:28.687 3589-3589/com.example W/dalvikvm: threadid=1: thread exiting with uncaught exception (group=0x40a71930) 08-04 12:38:28.778 3589-3589/com.example E/AndroidRuntime: FATAL EXCEPTION: main java.lang.NullPointerException at com.example.MainActivity.onOptionsItemSelected(MainActivity.java:125) at android.app.Activity.onMenuItemSelected(Activity.java:2548) at com.android.internal.policy.impl.PhoneWindow.onMenuItemSelected(PhoneWindow.java:980) at com.android.internal.view.menu.MenuBuilder.dispatchMenuItemSelected(MenuBuilder.java:735) at com.android.internal.view.menu.MenuItemImpl.invoke(MenuItemImpl.java:149) at com.android.internal.view.menu.MenuBuilder.performItemAction(MenuBuilder.java:874) at com.android.internal.view.menu.MenuPopupHelper.onItemClick(MenuPopupHelper.java:156) at android.widget.AdapterView.performItemClick(AdapterView.java:298) at android.widget.AbsListView.performItemClick(AbsListView.java:1100) at android.widget.AbsListView$PerformClick.run(AbsListView.java:2749) at android.widget.AbsListView$1.run(AbsListView.java:3423) at android.os.Handler.handleCallback(Handler.java:725) at android.os.Handler.dispatchMessage(Handler.java:92) at android.os.Looper.loop(Looper.java:137) at android.app.ActivityThread.main(ActivityThread.java:5041) at java.lang.reflect.Method.invokeNative(Native Method) at java.lang.reflect.Method.invoke(Method.java:511) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560) at dalvik.system.NativeStart.main(Native Method) 08-04 12:38:28.817 322-542/system_process W/ActivityManager: Force finishing activity com.example/.MainActivity 08-04 12:38:28.837 322-542/system_process W/WindowManager: Failure taking screenshot for (328x583) to layer 21035 08-04 12:38:29.287 37-162/? E/SurfaceFlinger: ro.sf.lcd_density must be defined as a build property 08-04 12:38:29.425 322-337/system_process W/ActivityManager: Activity pause timeout for ActivityRecord{411a3cd0 u0 com.example/.MainActivity} 08-04 12:38:29.747 708-723/com.android.exchange D/ExchangeService: Received deviceId from Email app: null 08-04 12:38:29.747 708-723/com.android.exchange D/ExchangeService: !!! deviceId unknown; stopping self and retrying 08-04 12:38:30.047 457-457/com.android.launcher I/Choreographer: Skipped 35 frames! The application may be doing too much work on its main thread. 08-04 12:38:30.337 37-37/? E/SurfaceFlinger: ro.sf.lcd_density must be defined as a build property 08-04 12:38:34.848 708-724/com.android.exchange D/ExchangeService: !!! EAS ExchangeService, onCreate 08-04 12:38:34.848 708-708/com.android.exchange D/ExchangeService: !!! EAS ExchangeService, onStartCommand, startingUp = false, running = false 08-04 12:38:34.858 322-560/system_process W/ActivityManager: Unable to start service Intent { act=com.android.email.ACCOUNT_INTENT } U=0: not found 08-04 12:38:34.858 708-898/com.android.exchange D/ExchangeService: !!! Email application not found; stopping self 08-04 12:38:34.880 322-669/system_process W/ActivityManager: Unable to start service Intent { act=com.android.email.ACCOUNT_INTENT } U=0: not found 08-04 12:38:34.887 708-708/com.android.exchange D/ExchangeService: !!! EAS ExchangeService, onStartCommand, startingUp = true, running = false 08-04 12:38:34.918 708-708/com.android.exchange E/ActivityThread: Service com.android.exchange.ExchangeService has leaked ServiceConnection com.android.emailcommon.service.ServiceProxy$ProxyConnection@40d4ceb0 that was originally bound here android.app.ServiceConnectionLeaked: Service com.android.exchange.ExchangeService has leaked ServiceConnection com.android.emailcommon.service.ServiceProxy$ProxyConnection@40d4ceb0 that was originally bound here at android.app.LoadedApk$ServiceDispatcher.&lt;init&gt;(LoadedApk.java:969) at android.app.LoadedApk.getServiceDispatcher(LoadedApk.java:863) at android.app.ContextImpl.bindService(ContextImpl.java:1418) at android.app.ContextImpl.bindService(ContextImpl.java:1407) at android.content.ContextWrapper.bindService(ContextWrapper.java:473) at com.android.emailcommon.service.ServiceProxy.setTask(ServiceProxy.java:157) at com.android.emailcommon.service.ServiceProxy.setTask(ServiceProxy.java:145) at com.android.emailcommon.service.AccountServiceProxy.getDeviceId(AccountServiceProxy.java:116) at com.android.exchange.ExchangeService.getDeviceId(ExchangeService.java:1249) at com.android.exchange.ExchangeService$7.run(ExchangeService.java:1856) at com.android.emailcommon.utility.Utility$2.doInBackground(Utility.java:551) at com.android.emailcommon.utility.Utility$2.doInBackground(Utility.java:549) at android.os.AsyncTask$2.call(AsyncTask.java:287) at java.util.concurrent.FutureTask.run(FutureTask.java:234) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1080) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:573) at java.lang.Thread.run(Thread.java:856) 08-04 12:38:35.021 708-708/com.android.exchange E/StrictMode: null android.app.ServiceConnectionLeaked: Service com.android.exchange.ExchangeService has leaked ServiceConnection com.android.emailcommon.service.ServiceProxy$ProxyConnection@40d4ceb0 that was originally bound here at android.app.LoadedApk$ServiceDispatcher.&lt;init&gt;(LoadedApk.java:969) at android.app.LoadedApk.getServiceDispatcher(LoadedApk.java:863) at android.app.ContextImpl.bindService(ContextImpl.java:1418) at android.app.ContextImpl.bindService(ContextImpl.java:1407) at android.content.ContextWrapper.bindService(ContextWrapper.java:473) at com.android.emailcommon.service.ServiceProxy.setTask(ServiceProxy.java:157) at com.android.emailcommon.service.ServiceProxy.setTask(ServiceProxy.java:145) at com.android.emailcommon.service.AccountServiceProxy.getDeviceId(AccountServiceProxy.java:116) at com.android.exchange.ExchangeService.getDeviceId(ExchangeService.java:1249) at com.android.exchange.ExchangeService$7.run(ExchangeService.java:1856) at com.android.emailcommon.utility.Utility$2.doInBackground(Utility.java:551) at com.android.emailcommon.utility.Utility$2.doInBackground(Utility.java:549) at android.os.AsyncTask$2.call(AsyncTask.java:287) at java.util.concurrent.FutureTask.run(FutureTask.java:234) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1080) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:573) at java.lang.Thread.run(Thread.java:856) 08-04 12:38:35.021 322-333/system_process W/ActivityManager: Unbind failed: could not find connection for android.os.BinderProxy@411d8540 08-04 12:38:35.047 708-708/com.android.exchange E/ActivityThread: Service com.android.exchange.ExchangeService has leaked ServiceConnection com.android.emailcommon.service.ServiceProxy$ProxyConnection@40ce0338 that was originally bound here android.app.ServiceConnectionLeaked: Service com.android.exchange.ExchangeService has leaked ServiceConnection com.android.emailcommon.service.ServiceProxy$ProxyConnection@40ce0338 that was originally bound here at android.app.LoadedApk$ServiceDispatcher.&lt;init&gt;(LoadedApk.java:969) at android.app.LoadedApk.getServiceDispatcher(LoadedApk.java:863) at android.app.ContextImpl.bindService(ContextImpl.java:1418) at android.app.ContextImpl.bindService(ContextImpl.java:1407) at android.content.ContextWrapper.bindService(ContextWrapper.java:473) at com.android.emailcommon.service.ServiceProxy.setTask(ServiceProxy.java:157) at com.android.emailcommon.service.ServiceProxy.setTask(ServiceProxy.java:145) at com.android.emailcommon.service.ServiceProxy.test(ServiceProxy.java:191) at com.android.exchange.ExchangeService$7.run(ExchangeService.java:1850) at com.android.emailcommon.utility.Utility$2.doInBackground(Utility.java:551) at com.android.emailcommon.utility.Utility$2.doInBackground(Utility.java:549) at android.os.AsyncTask$2.call(AsyncTask.java:287) at java.util.concurrent.FutureTask.run(FutureTask.java:234) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1080) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:573) at java.lang.Thread.run(Thread.java:856) 08-04 12:38:35.047 708-708/com.android.exchange E/StrictMode: null android.app.ServiceConnectionLeaked: Service com.android.exchange.ExchangeService has leaked ServiceConnection com.android.emailcommon.service.ServiceProxy$ProxyConnection@40ce0338 that was originally bound here at android.app.LoadedApk$ServiceDispatcher.&lt;init&gt;(LoadedApk.java:969) at android.app.LoadedApk.getServiceDispatcher(LoadedApk.java:863) at android.app.ContextImpl.bindService(ContextImpl.java:1418) at android.app.ContextImpl.bindService(ContextImpl.java:1407) at android.content.ContextWrapper.bindService(ContextWrapper.java:473) at com.android.emailcommon.service.ServiceProxy.setTask(ServiceProxy.java:157) at com.android.emailcommon.service.ServiceProxy.setTask(ServiceProxy.java:145) at com.android.emailcommon.service.ServiceProxy.test(ServiceProxy.java:191) at com.android.exchange.ExchangeService$7.run(ExchangeService.java:1850) at com.android.emailcommon.utility.Utility$2.doInBackground(Utility.java:551) at com.android.emailcommon.utility.Utility$2.doInBackground(Utility.java:549) at android.os.AsyncTask$2.call(AsyncTask.java:287) at java.util.concurrent.FutureTask.run(FutureTask.java:234) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1080) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:573) at java.lang.Thread.run(Thread.java:856) 08-04 12:38:35.068 322-474/system_process W/ActivityManager: Unbind failed: could not find connection for android.os.BinderProxy@411d82a8 08-04 12:38:35.118 708-711/com.android.exchange D/dalvikvm: GC_CONCURRENT freed 464K, 20% free 2503K/3112K, paused 80ms+7ms, total 189ms 08-04 12:38:42.870 322-337/system_process W/ActivityManager: Activity destroy timeout for ActivityRecord{411a3cd0 u0 com.example/.MainActivity} </code></pre>
    singulars
    1. PO
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      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. USShubham Mathur
    1. USShubham Mathur
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
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      1. PTAnswer
    1. VO
      singulars
      1. POAndroid: App has stopped working issue
      1. This table or related slice is empty.
      1. VTDownMod
    2. VO
      singulars
      1. POAndroid: App has stopped working issue
      1. This table or related slice is empty.
      1. VTDownMod
    1. COpls post the stack trace.
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      1. POAndroid: App has stopped working issue
      1. USRaghunandan
    2. CONo don't post the stack trace. _Read_ the stack trace. Check your logcat where you'll find the exception that caused the crash, along with the line number at which the exception occured. After doing this you might not need us anymore. Look for the informative `Caused by` line.
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      1. POAndroid: App has stopped working issue
      1. USkeyser
    3. COi have added the log,as i cant understand the issue in it.. please help :( @ Keyser
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      1. POAndroid: App has stopped working issue
      1. USShubham Mathur
 

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