57 lines
2.1 KiB
Kotlin
57 lines
2.1 KiB
Kotlin
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package com.voice.lib_base.ext
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import android.view.LayoutInflater
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import android.view.ViewGroup
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import androidx.appcompat.app.AppCompatActivity
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import androidx.databinding.ViewDataBinding
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import androidx.fragment.app.Fragment
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import androidx.viewbinding.ViewBinding
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import java.lang.reflect.InvocationTargetException
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import java.lang.reflect.ParameterizedType
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/**
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* 作者 : QIngNing
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* 时间 : 2021/12/21
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* 描述 :
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*/
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@JvmName("inflateWithGeneric")
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fun <VB : ViewBinding> AppCompatActivity.inflateBindingWithGeneric(layoutInflater: LayoutInflater): VB =
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withGenericBindingClass<VB>(this) { clazz ->
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clazz.getMethod("inflate", LayoutInflater::class.java).invoke(null, layoutInflater) as VB
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}.also { binding ->
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if (binding is ViewDataBinding) {
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binding.lifecycleOwner = this
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}
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}
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@JvmName("inflateWithGeneric")
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fun <VB : ViewBinding> Fragment.inflateBindingWithGeneric(layoutInflater: LayoutInflater, parent: ViewGroup?, attachToParent: Boolean): VB =
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withGenericBindingClass<VB>(this) { clazz ->
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clazz.getMethod("inflate", LayoutInflater::class.java, ViewGroup::class.java, Boolean::class.java)
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.invoke(null, layoutInflater, parent, attachToParent) as VB
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}.also { binding ->
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if (binding is ViewDataBinding) {
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binding.lifecycleOwner = viewLifecycleOwner
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}
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}
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private fun <VB : ViewBinding> withGenericBindingClass(any: Any, block: (Class<VB>) -> VB): VB {
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var genericSuperclass = any.javaClass.genericSuperclass
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var superclass = any.javaClass.superclass
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while (superclass != null) {
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if (genericSuperclass is ParameterizedType) {
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try {
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return block.invoke(genericSuperclass.actualTypeArguments[0] as Class<VB>)
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} catch (e: NoSuchMethodException) {
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} catch (e: ClassCastException) {
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} catch (e: InvocationTargetException) {
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throw e.targetException
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}
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}
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genericSuperclass = superclass.genericSuperclass
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superclass = superclass.superclass
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}
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throw IllegalArgumentException("There is no generic of ViewBinding.")
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}
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