DataForm: [Android] NullPointerException is thrown when using DataFormPasswordEditor
Setting DataFormPasswordEditor inside a custom renderer on Android leads to the following exception:
Java.Lang.NullPointerException: Attempt to invoke virtual method 'java.util.Iterator java.util.ArrayList.iterator()' on a null object reference
Posted on:23 Mar 2020 16:37
Yana, I had to make a few tweaks to fit our implementation, but that got me on the right path. I'm not crashing anymore.
Posted on:23 Mar 2020 16:02
I am sorry to hear you've come across this error.
We've researched this and came up with a fairy simple workaround you can apply in the custom renderer to resolve it.
First, you would need to set TextEditor for the Password field and override the UpdateEditor method of the custom renderer. Inside this method find the Android EditText control and apply some settings to make it show a password (actually that's the same approach we're using in our code).
The snippet below shows exactly what I mean:
publicI hope this would be of help. Let me know if you experience any issues with the approach. classCustomDataFormRenderer : DataFormRenderer
protectedoverridevoidUpdateEditor(EntityPropertyEditor editor, IEntityProperty property)
if (property.PropertyName == nameof(ThomasPwdEditor.Portable.User.Password))
var editText = editor.EditorView.JavaCast<AppCompatEditText>();
editText.InputType = InputTypes.TextFlagNoSuggestions;
editText.TransformationMethod = new PasswordTransformationMethod();
I hope this would be of help. Let me know if you experience any issues with the approach.
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Posted on:23 Mar 2020 15:42
I am getting this as well. We have not made any changes in our implementation since this was working previously.