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我的问题是，如何结合使用双向数据绑定和视图？当我尝试在viewstub 布局中使用双向数据绑定时，文本从未在我的viewmodel 中设置。

ViewStub 布局

<layout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto">

    <data>
        <variable
            name="vBility"
            type="Boolean" />
        <variable
            name="vForm"
            type="String" />
        <variable
            name="hint"
            type="String" />
        <variable
            name="iType"
            type="Integer" />
        <variable
            name="mText"
            type="String" />
    </data>


    <androidx.constraintlayout.widget.ConstraintLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:visibility="@{vBility}">

        <com.example.app.presentation.util.view.FixedInputTextLayout
            android:id="@+id/app_default_et"
            style="@style/Widget.MaterialComponents.TextInputLayout.OutlinedBox"
            android:layout_width="@dimen/wrapContent"
            android:layout_height="wrap_content"
            android:hint="@{hint}"
            android:visibility="@{vBility}"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toTopOf="parent"
            app:validate_form="@{vForm}">

            <com.google.android.material.textfield.TextInputEditText
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:inputType="@{iType}"
                android:text="@={mText}" <!-- NEVER CHANGED -->
                android:textSize="@dimen/font_text_large" />

        </com.example.app.presentation.util.view.FixedInputTextLayout>

    </androidx.constraintlayout.widget.ConstraintLayout>
</layout>

使用布局

<ViewStub
    android:id="@+id/app_default_company_name_et"
    android:layout_width="@dimen/wrapContent"
    android:layout_height="wrap_content"
    android:layout_marginTop="8dp"
    android:layout_marginEnd="8dp"
    android:inflatedId="@+id/app_default_company_name_et"
    android:layout="@layout/app_standard_textinputlayout"
    android:visibility="@{cValidator.companySwitchState}"
    app:vBility="@{cValidator.companySwitchState}"
    app:vForm="@{cValidator.etCompanyNameEM}"
    app:hint="@{cValidator.etCompanyHint}"
    app:iType="@{0x00000001}"
    app:mText="@{cValidator.etCompanyName}" <!-- etCompanyName MutableLiveData not changing -->
    app:layout_constraintEnd_toStartOf="@+id/app_default_company_ust_et"
    app:layout_constraintHorizontal_bias="0.5"
    app:layout_constraintStart_toStartOf="@+id/margin_left"
    app:layout_constraintTop_toBottomOf="@+id/calibrate_user_data_company_text" />
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