Android DataBinding错误.找不到访问器 [英] Android DataBinding error. Could not find accessor

问题描述

尝试运行我的应用时出现以下错误:

I'm getting the following error when I try to run my app:

Error:Execution failed for task ':app:compileDevelopmentDebugJavaWithJavac'.
> java.lang.RuntimeException: Found data binding errors.
****/ data binding error ****msg:Could not find accessor java.lang.String.giftRecipientName redacted.xml loc:182:63 - 182:93 ****\ data binding error ****

我有一个看起来像这样的Order对象:

I have an Order object which looks like this:

public class Order {
    public Address address;
    // unrelated fields and methods
}

嵌套的Address对象如下所示:

The nested Address object looks like this:

public class Address {
    public String addressLine1;
    public String addressLine2;
    public String giftRecipientName;
    public Boolean isGift;
}

在我的.xml文件中，我正在执行以下操作:

In my .xml I am doing the following:

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

    <data>
        <variable name="order" type="example.redacted.models.Order"/>
    </data>
    // widgets and whatnot
    <TextView
        android:id="@+id/gift_recipientTV"
        android:layout_column="1"
        android:layout_weight="1"
        android:layout_width="0dp"
        android:textStyle="bold"
        android:gravity="right"
        android:text='@{order.address.isGift ?  order.address.giftRecipientName : "" }'/>

最后是我的片段:

public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
    RedactedBinding dataBinding = DataBindingUtil.inflate(inflater, R.layout.redacted, container, false);
    dataBinding.setOrder(_order);
    return dataBinding.getRoot();
}

推荐答案

经过数小时的反复试验，Android数据绑定似乎在之前查找吸气剂，而在公共字段中查找.我的Order对象有一个名为getAddress的帮助器方法

After hours of trial and error it seems that Android data-binding looks for getters before it looks at public fields. My Order object had a helper method called getAddress

public class Order {
    public Address address;

    public String getAddress() {
        return address.addressLine1 + address.addressLine2;
    }
}

活页夹正在调用该方法，而不是访问公共地址字段.我将getAddress方法放在Address对象(可能应该从那里开始)中，然后编译应用程序.

The binder was calling that method instead of accessing the public Address field. I put the getAddress method inside the Address object (where it probably should have been to begin with) and the app compiled.

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