Yes, sorry for not posting in before, line 163 is the one I marked :
java.lang.NullPointerException
at com.myapp.widget.CurrencyEditText$2.onClick(CurrencyEditText.java:
163)
at com.android.internal.app.AlertController
$ButtonHandler.handleMessage(AlertController.java:158)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:144)
at android.app.ActivityThread.main(ActivityThread.java:4937)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:521)
at com.android.internal.os.ZygoteInit
$MethodAndArgsCaller.run(ZygoteInit.java:868)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
at dalvik.system.NativeStart.main(Native Method)
On Sep 15, 11:06 am, Mark Carter <mjc1...@googlemail.com> wrote:
> Do you have access to the stacktrace?
>
> On Sep 15, 3:29 pm, Zsolt Vasvari <zvasv...@gmail.com> wrote:
>
>
>
> > Hello, I have a custom widget that can display a pop-up dialog. I
> > have a single report of a NPE happening, and looking through my code,
> > I don't know how that's possible unless there is a race condition
> > involved somehow. Just wondering if anybody can point me to the
> > problem.
>
> > Here's my code (irrelevant stuff omitted):
>
> > public class CurrencyEditText extends LinearLayout
> > {
> > Dialog mDialog; // If the dialog is NOT showing, this is NULL
>
> > protected void onDetachedFromWindow()
> > {
> > super.onDetachedFromWindow();
>
> > // Dismiss, if showing
> > if (mDialog != null)
> > {
> > mDialog.dismiss();
> > mDialog = null;
> > }
> > }
>
> > private void showDialog()
> > {
> > Builder builder = new Builder(context);
>
> > // Set dialog properties, omitted...
>
> > builder.setPositiveButton(R.string.set, new
> > OnClickListener()
> > {
> > public void onClick(DialogInterface dialog, int
> > buttonId)
> > {
> > // Dismiss
> > CurrencyEditText.this.mDialog.dismiss();
> > CurrencyEditText.this.mDialog = null;
>
> > // Send message here, omitted...
> > }
> > });
>
> > builder.setNegativeButton(android.R.string.cancel, new
> > OnClickListener()
> > {
> > public void onClick(DialogInterface dialog, int
> > buttonId)
> > {
> > // Dismiss -- NPE happens on next line as mDialog
> > is NULL, which it shouldn't be
> > CurrencyEditText.this.mDialog.dismiss();
> > CurrencyEditText.this.mDialog = null;
>
> > // Send message here, omitted...
> > }
> > });
>
> > mDialog = builder.show();
> > }
>
> > }
>
> > That's it -- mDialog is not touched anywhere else. So either the
> > click listener is called after onDetachedFromWindow() or before
> > builder.show() can set mDialog.
>
> > Obviously, I could address the symptom by butting a NULL check around
> > the crashing line, but I would like to understand what's going on here
> > as I use the same pattern all over my app.
>
> > Thanks.- Hide quoted text -
>
> - Show quoted text -
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