方法的目的是什么？
我一直在使用数据绑定库beta版。
目前还没有针对各个类的官方参考文档，所以我一直在查看源代码，看看我们可以访问哪些方法。
databindingutil类有两个方法，听起来它们会做类似的事情：findBinding(View view)public static <T extends ViewDataBinding> T findBinding(View view)
第二个方法public static <T extends ViewDataBinding> T getBinding(View view)只是一个调用getBinding类ViewDataBinding方法的实用方法。
第一种方法getBinding更不清楚如何遵循和确定其目的。有什么想法吗？
最佳答案
抱歉，网页中缺少文档，但它们应该在sdk maven存储库中。
区别在于，find binding将遍历父级，而getbinding将返回null如果给定视图不是绑定根。文件如下：
/**
* Retrieves the binding responsible for the given View. If <code>view</code> is not a
* binding layout root, its parents will be searched for the binding. If there is no binding,
* <code>null</code> will be returned.
* <p>
* This differs from {@link #getBinding(View)} in that findBinding takes any view in the
* layout and searches for the binding associated with the root. <code>getBinding</code>
* takes only the root view.
*
* @param view A <code>View</code> in the bound layout.
* @return The ViewDataBinding associated with the given view or <code>null</code> if
* view is not part of a bound layout.
*/
public static <T extends ViewDataBinding> T findBinding(View view) {
/**
* Retrieves the binding responsible for the given View layout root. If there is no binding,
* <code>null</code> will be returned. This uses the DataBindingComponent set in
* {@link #setDefaultComponent(DataBindingComponent)}.
*
* @param view The root <code>View</code> in the layout with binding.
* @return The ViewDataBinding associated with the given view or <code>null</code> if
* either the view is not a root View for a layout or view hasn't been bound.
*/
public static <T extends ViewDataBinding> T getBinding(View view) {