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POSharedPreferences getting "Could not execute method of the Acitvity"
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  1. POSharedPreferences getting "Could not execute method of the Acitvity"
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    copied!<p>I want to store user data and a password, but I always get an error "Could not execute method of the activity".</p> <p>I think the write actions works:</p> <pre><code>Editor editor = getSharedPreferences("pref", 0).edit(); editor.putString(CustomizedListView.KEY_USER, username); editor.putString(CustomizedListView.KEY_PASSWORD, password); System.out.println("username: " + username); System.out.println("password: " + password); editor.commit(); </code></pre> <p>I get an error with reading the preferences:</p> <pre><code>public class RESTClient extends Activity { private ArrayList&lt;NameValuePair&gt; uebergabeParam = new ArrayList&lt;NameValuePair&gt;(); @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); } public String getResponse(String URLParameter, HttpMethod method) { System.out.println("RESTClient"); SharedPreferences pref = getPreferences(MODE_PRIVATE); // or SharedPreferences pref = getSharedPreferences("pref", MODE_PRIVATE); String username = pref.getString(CustomizedListView.KEY_USER, ""); String password = pref.getString(CustomizedListView.KEY_PASSWORD, ""); try { Client client = new Client(); client.addParameter(method, uebergabeParam, URLParameter, username , password); return client.execute().get(); } catch (InterruptedException e) { System.out.println("RESTClient getResponse " + e); e.printStackTrace(); } catch (ExecutionException e) { System.out.println("RESTClient getResponse " + e); e.printStackTrace(); } return ""; } } </code></pre> <p>I get the following error:</p> <pre><code>02-22 17:37:58.903: I/System.out(1714): RESTClient 02-22 17:37:58.903: D/AndroidRuntime(1714): Shutting down VM 02-22 17:37:58.903: W/dalvikvm(1714): threadid=1: thread exiting with uncaught exception (group=0x412f42a0) 02-22 17:37:58.918: E/AndroidRuntime(1714): FATAL EXCEPTION: main 02-22 17:37:58.918: E/AndroidRuntime(1714): java.lang.IllegalStateException: Could not execute method of the activity 02-22 17:37:58.918: E/AndroidRuntime(1714): at android.view.View$1.onClick(View.java:3691) 02-22 17:37:58.918: E/AndroidRuntime(1714): at android.view.View.performClick(View.java:4211) 02-22 17:37:58.918: E/AndroidRuntime(1714): at android.view.View$PerformClick.run(View.java:17267) 02-22 17:37:58.918: E/AndroidRuntime(1714): at android.os.Handler.handleCallback(Handler.java:615) 02-22 17:37:58.918: E/AndroidRuntime(1714): at android.os.Handler.dispatchMessage(Handler.java:92) 02-22 17:37:58.918: E/AndroidRuntime(1714): at android.os.Looper.loop(Looper.java:137) 02-22 17:37:58.918: E/AndroidRuntime(1714): at android.app.ActivityThread.main(ActivityThread.java:4898) 02-22 17:37:58.918: E/AndroidRuntime(1714): at java.lang.reflect.Method.invokeNative(Native Method) 02-22 17:37:58.918: E/AndroidRuntime(1714): at java.lang.reflect.Method.invoke(Method.java:511) 02-22 17:37:58.918: E/AndroidRuntime(1714): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1006) 02-22 17:37:58.918: E/AndroidRuntime(1714): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:773) 02-22 17:37:58.918: E/AndroidRuntime(1714): at dalvik.system.NativeStart.main(Native Method) 02-22 17:37:58.918: E/AndroidRuntime(1714): Caused by: java.lang.reflect.InvocationTargetException 02-22 17:37:58.918: E/AndroidRuntime(1714): at java.lang.reflect.Method.invokeNative(Native Method) 02-22 17:37:58.918: E/AndroidRuntime(1714): at java.lang.reflect.Method.invoke(Method.java:511) 02-22 17:37:58.918: E/AndroidRuntime(1714): at android.view.View$1.onClick(View.java:3686) 02-22 17:37:58.918: E/AndroidRuntime(1714): ... 11 more 02-22 17:37:58.918: E/AndroidRuntime(1714): Caused by: java.lang.NullPointerException 02-22 17:37:58.918: E/AndroidRuntime(1714): at android.app.Activity.getLocalClassName(Activity.java:4556) 02-22 17:37:58.918: E/AndroidRuntime(1714): at android.app.Activity.getPreferences(Activity.java:4589) 02-22 17:37:58.918: E/AndroidRuntime(1714): at kommunikation.RESTClient.getResponse(RESTClient.java:67) 02-22 17:37:58.918: E/AndroidRuntime(1714): at Login.onClick(Login.java:124) 02-22 17:37:58.918: E/AndroidRuntime(1714): ... 14 more </code></pre> <p>Hope you can help I don't know why. Thank a lot!</p> <p><strong>EDIT:</strong></p> <pre><code>public class CustomizedListView extends Activity { // Login public static final String KEY_USER = "user"; public static final String KEY_PASSWORD = "password"; } </code></pre> <p>I edited the getReponse() method too and added the </p> <blockquote> <p>super.onCreate(savedInstanceState);</p> </blockquote>
 

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