There is an issue with the Sony Xperia Z (C6833) keyboard that causes any EditText using an InputFilter to misbehave. For example, typing h-e-l-l-o in one of these fields comes out as hhehelhellhello.

In order to keep my filtering functionality (I want to only allow alphanumeric characters), I removed my old code ( myText.setFilters(new InputFilter[] { ... }); ) and made a few simple changes to any EditTexts I need filtered so they look like this:


The android:digits property does the filtering here. Give it any and all valid characters you want to accept, and for extra credit, throw it in a string resource to reduce copy-and-paste errors.

If you’d like the “Next” button to show on your user’s keyboard for this field, android:imeOptions="actionNext" alone isn’t going to cut it—the android:digits property causes the keyboard to show an Enter key on every device I tested, so throw in android:singleLine="true" to fix it.

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