Android数据绑定，单选按钮不更新 [英] Android data binding, Radio Button not updating

问题描述

我有一些 RadioButtons，我希望它们在模型更改时被选中/取消选中，使用数据绑定.
我设法设置了一个 EditText，它工作正常.
无论如何，RadioButtons 的行为就像 android:checked 属性不存在一样.

I have some RadioButtons and I want them to be checked/unchecked as the model changes, using Data Binding.
I managed to set up an EditText and it is working fine.
Anyway, the RadioButtons behave as the android:checked property wouldn't be there.

<RadioButton 
    android:id="@+id/radio_kitchen"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="@string/kitchen"
    android:checked="@{radiator.room==@string/kitchen?true:false}"
/>

推荐答案

这是我目前正在做的:

        <RadioButton
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:onClick="@{() -> car.setModel(@string/car_model_toyota)}"
        android:checked="@{car.model.equals(@string/car_model_toyota)}"
        android:text="@string/car_model_toyota"/>

这是作弊，因为我在某种程度上为视图提供了一些代码逻辑...但至少我不必在每个无线电组上实现 onchange 侦听器，而且我仍然可以进行绑定...

It's cheating since I am kind of giving some code logic to the View... but at least I don't have to implement an onchange listener on every single radiogroup and I still get the binding to happen...

除非有人纠正我并给我一个更合乎道德和专业的解决方案，否则我想我会坚持这个.

Unless someone correct me and gives me a more ethic and professional solution I think I am going to stick with this one.

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