Databinding error - Could not find accessor

问题

I googled but still didn't find solution for me.

This is my xml:

<?xml version="1.0" encoding="utf-8"?>
<layout xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools">

    <data>
        <import
            alias="noteViewModel"
            type="com.app.screen.createnote.CreateNoteViewModel" />
    </data>

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="vertical">

        <EditText
                android:id="@+id/etNote"
                style="@style/JWidget.EditText.Grey"
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:gravity="start"
                android:inputType="textMultiLine"
                android:scrollbars="vertical"
                android:text="@={noteViewModel.note.description}" />        
    </LinearLayout>
</layout>

This is my ViewModel code:

public class CreateNoteViewModel extends BaseObservable {
     private Note note;
     @Bindable
     public Note getNote() {
         return note;
     }

     public void setNote(Note note) {
         this.note = note;
         notifyPropertyChanged(BR.note);
     }

}

But when I try run my app I got it:

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

java.lang.RuntimeException: Found data binding errors. ****/ data binding error ****msg:Could not find accessor com.justsafe.tmgr.justsafe.screen.createnote.CreateNoteViewModel.note file:C:\android\work\JustSafeTmgr\app\src\main\res\layout\activity_create_note.xml loc:44:33 - 44:62 ****\ data binding error ****

P.S. In other place in my app it work, but there I get problem.

回答1:

Try to change the <import> tag to a <variable> tag:

<data>
        <variable
            name="noteViewModel"
            type="com.app.screen.createnote.CreateNoteViewModel" />
    </data>

回答2:

build.gradle -- app

android {
   dataBinding {
        enabled = true
    }
}

dependencies {
    def life_versions = "1.1.1"

    // Lifecycle components
    implementation "android.arch.lifecycle:extensions:$life_versions"
    annotationProcessor "android.arch.lifecycle:compiler:$life_versions"
}

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<layout xmlns:android="http://schemas.android.com/apk/res/android">
    <data>
        <variable
            name="LoginViewModel"
            type="com.keshav.mvvmdemokeshav.viewModel.LoginViewModel" />
    </data>
    <!-- TODO Your XML File-->
</layout>

来源：https://stackoverflow.com/questions/43351048/databinding-error-could-not-find-accessor