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POEditText.setText error
 

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    <p>RESOLVED! The problem is that I used this.findViewById, but I will use dialog.findViewById. TNX TO ALL AND I BEG YOUR PARDON!</p> <p>I've a strange (for me) problem. I try to write in a edittext with a string readed from a cursor, and i know that's the correct way:</p> <pre><code>EditText myText; final Dialog dialog = new Dialog(this); dialog.setContentView(R.layout.login); dialog.setTitle("Login"); dialog.setCancelable(true); Cursor lista=db.listaParametri(); try { while (lista.moveToNext()) { if (lista.getString(0).equals("username")) { myText = (EditText) this.findViewById(R.id.username); Log.d("log", lista.getString(1)); myText.setText( lista.getString(1) ); } } } finally { lista.close(); } </code></pre> <p>But when try to write whit settext() return this error:</p> <pre><code>06-10 09:43:01.829: E/AndroidRuntime(279): FATAL EXCEPTION: main 06-10 09:43:01.829: E/AndroidRuntime(279): java.lang.NullPointerException 06-10 09:43:01.829: E/AndroidRuntime(279): at it.axiomatic.epsoft.sms.EpsoftSMSActivity.setup_parametri(EpsoftSMSActivity.java:147) 06-10 09:43:01.829: E/AndroidRuntime(279): at it.axiomatic.epsoft.sms.EpsoftSMSActivity.onOptionsItemSelected(EpsoftSMSActivity.java:73) 06-10 09:43:01.829: E/AndroidRuntime(279): at android.app.Activity.onMenuItemSelected(Activity.java:2195) 06-10 09:43:01.829: E/AndroidRuntime(279): at com.android.internal.policy.impl.PhoneWindow.onMenuItemSelected(PhoneWindow.java:730) 06-10 09:43:01.829: E/AndroidRuntime(279): at com.android.internal.view.menu.MenuItemImpl.invoke(MenuItemImpl.java:143) 06-10 09:43:01.829: E/AndroidRuntime(279): at com.android.internal.view.menu.MenuBuilder.performItemAction(MenuBuilder.java:855) 06-10 09:43:01.829: E/AndroidRuntime(279): at com.android.internal.view.menu.IconMenuView.invokeItem(IconMenuView.java:532) 06-10 09:43:01.829: E/AndroidRuntime(279): at com.android.internal.view.menu.IconMenuItemView.performClick(IconMenuItemView.java:122) 06-10 09:43:01.829: E/AndroidRuntime(279): at android.view.View$PerformClick.run(View.java:8816) 06-10 09:43:01.829: E/AndroidRuntime(279): at android.os.Handler.handleCallback(Handler.java:587) 06-10 09:43:01.829: E/AndroidRuntime(279): at android.os.Handler.dispatchMessage(Handler.java:92) 06-10 09:43:01.829: E/AndroidRuntime(279): at android.os.Looper.loop(Looper.java:123) 06-10 09:43:01.829: E/AndroidRuntime(279): at android.app.ActivityThread.main(ActivityThread.java:4627) 06-10 09:43:01.829: E/AndroidRuntime(279): at java.lang.reflect.Method.invokeNative(Native Method) 06-10 09:43:01.829: E/AndroidRuntime(279): at java.lang.reflect.Method.invoke(Method.java:521) 06-10 09:43:01.829: E/AndroidRuntime(279): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868) 06-10 09:43:01.829: E/AndroidRuntime(279): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626) 06-10 09:43:01.829: E/AndroidRuntime(279): at dalvik.system.NativeStart.main(Native Method) </code></pre> <p>What's up? Tnx!</p>
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    1. USAxiomatic.it
    1. USAxiomatic.it
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    1. COYou received a NullPointerException, which means that something is not defined and you are accessing its properties or performing methods upon it. It seems as if lista is null; print lista and see what the result is.
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      1. USVulcan
    2. COLook at line number 147 in EpsoftSMSActivity.java and make sure you don't have any NULL variables there.
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      1. USVishnu Haridas
    3. COAfter seeing another [recent question](http://stackoverflow.com/questions/10948678/java-lang-nullpointerexception-error-on-a-query) of yours related to NPEs, I recommend you learn what NullPointerExceptions are, what causes them, and how to avoid them.
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      1. USVulcan
 

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