基类中通过反射获取子类的ViewBinding

BaseFragment

    private var _binding: VB? = null
    protected val mBinding get() = _binding!!
    
        override fun onCreateView(
        inflater: LayoutInflater,
        container: ViewGroup?,
        savedInstanceState: Bundle?
    ): View? {
        _binding = BindingReflex.reflexViewBinding(javaClass, layoutInflater)
        return _binding?.root
    }

BindingReflex.reflexViewBinding

        /**
     * 反射获取ViewBinding
     *
     * @param     ViewBinding 实现类
     * @param aClass 当前类
     * @param from   layouinflater
     * @return viewBinding实例
     */
    fun <V : ViewBinding> reflexViewBinding(aClass: Class<*>, from: LayoutInflater?): V {
        try {
            val actualTypeArguments =
                (Objects.requireNonNull(aClass.genericSuperclass) as ParameterizedType).actualTypeArguments
            for (i in actualTypeArguments.indices) {
                val tClass: Class<Any>
                try {
                    tClass = actualTypeArguments[i] as Class<Any>
                } catch (e: Exception) {
                    continue
                }
                if (ViewBinding::class.java.isAssignableFrom(tClass)) {
                    val inflate = tClass.getMethod("inflate", LayoutInflater::class.java)
                    return inflate.invoke(null, from) as V
                }
            }
            return reflexViewBinding(aClass.superclass, from)
        } catch (e: NoSuchMethodException) {
            e.printStackTrace()
        } catch (e: IllegalAccessException) {
            e.printStackTrace()
        } catch (e: InvocationTargetException) {
            e.printStackTrace()
        }
        throw RuntimeException("ViewBinding初始化失败")
    }