oreofeolurin oreofeolurin - 3 years ago 190
Java Question

Android Bindings Stopped working

Just suddenly my bindings for android stoped working, anything I build now, I just get this message.

Error:Execution failed for task ':app:compileDevDebugJavaWithJavac'.


java.lang.RuntimeException: Found data binding errors.
****/ data binding error ****msg:Cannot find the getter for attribute 'android:text' with value type java.lang.String on android.widget.EditText.
file:C:\path\to\layout\layout.xml
loc:85:12 - 96:54
****\ data binding error ****


What I have tried

First it was suggested the bindings won't compile if there are errors in my files, so removed all layout files where I used bindings up to one file
layout.xml
. There I have

<EditText
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:text="@{model.name}" />


... and it works well, however if i add the two-way binding
android:text="@={model.name}"
It throws the previous error.

Next, I add

@InverseBindingAdapter(attribute = "android:text")
public static String captureEditTextValue(EditText view) {
return view.getText().toString();
}


...then it throws new error.

Error:Execution failed for task ':app:compileDevDebugJavaWithJavac'.


java.lang.RuntimeException: Found data binding errors.
****/ data binding error ****msg:Could not find event 'android:textAttrChanged' on View type 'android.widget.EditText'
file:C:\Users\EdgeTech\AndroidStudioProjects\purse\purse-customer\app\src\main\res\layout\get_phone_layout.xml
loc:85:12 - 96:54
****\ data binding error ****


Went further, to refactor to this

@InverseBindingAdapter(attribute = "android:text", event = "android:textAttrChanged")
public static String captureEditTextValue(EditText view) {
return view.getText().toString();
}


...still gives previous error.

My Setup


  • Android Studio: 2.3.3

  • Gradle Build Tools: 2.3.3


Answer Source

Two way binding needs this type:

ObservableField<T>

for example: in viewModel.class

public ObservableField<String> productName = new ObservableField<>();

in layout.xml:

<EditText
       android:layout_width="wrap_content"
       android:layout_height="match_parent"
       android:text="@={viewModel.productName}" />
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