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commit 1.2.7 添加ViewBinding，后续无需重写layoutId()方法
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hegaojian
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Jan 13, 2022
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28 changes: 28 additions & 0 deletions
28
JetpackMvvm/src/main/java/me/hgj/jetpackmvvm/base/activity/BaseVmVbActivity.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,28 @@ | ||
| package me.hgj.jetpackmvvm.base.activity | ||
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| import android.view.View | ||
| import androidx.viewbinding.ViewBinding | ||
| import me.hgj.jetpackmvvm.base.viewmodel.BaseViewModel | ||
| import me.hgj.jetpackmvvm.ext.inflateBindingWithGeneric | ||
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| /** | ||
| * 作者 : hegaojian | ||
| * 时间 : 2019/12/12 | ||
| * 描述 : 包含 ViewModel 和 ViewBinding ViewModelActivity基类，把ViewModel 和 ViewBinding 注入进来了 | ||
| * 需要使用 ViewBinding 的清继承它 | ||
| */ | ||
| abstract class BaseVmVbActivity<VM : BaseViewModel, VB : ViewBinding> : BaseVmActivity<VM>() { | ||
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| override fun layoutId(): Int = 0 | ||
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| lateinit var mViewBind: VB | ||
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| /** | ||
| * 创建DataBinding | ||
| */ | ||
| override fun initDataBind(): View? { | ||
| mViewBind = inflateBindingWithGeneric(layoutInflater) | ||
| return mViewBind.root | ||
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| } | ||
| } |
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38 changes: 38 additions & 0 deletions
38
JetpackMvvm/src/main/java/me/hgj/jetpackmvvm/base/fragment/BaseVmVbFragment.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,38 @@ | ||
| package me.hgj.jetpackmvvm.base.fragment | ||
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| import android.os.Bundle | ||
| import android.view.LayoutInflater | ||
| import android.view.View | ||
| import android.view.ViewGroup | ||
| import androidx.viewbinding.ViewBinding | ||
| import me.hgj.jetpackmvvm.base.viewmodel.BaseViewModel | ||
| import me.hgj.jetpackmvvm.ext.inflateBindingWithGeneric | ||
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| /** | ||
| * 作者 : hegaojian | ||
| * 时间 : 2019/12/12 | ||
| * 描述 : ViewModelFragment基类，自动把ViewModel注入Fragment和 ViewBinding 注入进来了 | ||
| * 需要使用 ViewBinding 的清继承它 | ||
| */ | ||
| abstract class BaseVmVbFragment<VM : BaseViewModel, VB : ViewBinding> : BaseVmFragment<VM>() { | ||
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| override fun layoutId() = 0 | ||
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| //该类绑定的 ViewBinding | ||
| private var _binding: VB? = null | ||
| val mViewBind: VB get() = _binding!! | ||
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| override fun onCreateView( | ||
| inflater: LayoutInflater, | ||
| container: ViewGroup?, | ||
| savedInstanceState: Bundle? | ||
| ): View? { | ||
| _binding = inflateBindingWithGeneric(inflater,container,false) | ||
| return mViewBind.root | ||
| } | ||
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| override fun onDestroyView() { | ||
| super.onDestroyView() | ||
| _binding = null | ||
| } | ||
| } |
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56 changes: 56 additions & 0 deletions
56
JetpackMvvm/src/main/java/me/hgj/jetpackmvvm/ext/ViewBindUtil.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,56 @@ | ||
| package me.hgj.jetpackmvvm.ext | ||
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| import android.view.LayoutInflater | ||
| import android.view.ViewGroup | ||
| import androidx.appcompat.app.AppCompatActivity | ||
| import androidx.databinding.ViewDataBinding | ||
| import androidx.fragment.app.Fragment | ||
| import androidx.viewbinding.ViewBinding | ||
| import java.lang.reflect.InvocationTargetException | ||
| import java.lang.reflect.ParameterizedType | ||
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| /** | ||
| * 作者 : hegaojian | ||
| * 时间 : 2021/12/21 | ||
| * 描述 : | ||
| */ | ||
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| @JvmName("inflateWithGeneric") | ||
| fun <VB : ViewBinding> AppCompatActivity.inflateBindingWithGeneric(layoutInflater: LayoutInflater): VB = | ||
| withGenericBindingClass<VB>(this) { clazz -> | ||
| clazz.getMethod("inflate", LayoutInflater::class.java).invoke(null, layoutInflater) as VB | ||
| }.also { binding -> | ||
| if (binding is ViewDataBinding) { | ||
| binding.lifecycleOwner = this | ||
| } | ||
| } | ||
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| @JvmName("inflateWithGeneric") | ||
| fun <VB : ViewBinding> Fragment.inflateBindingWithGeneric(layoutInflater: LayoutInflater, parent: ViewGroup?, attachToParent: Boolean): VB = | ||
| withGenericBindingClass<VB>(this) { clazz -> | ||
| clazz.getMethod("inflate", LayoutInflater::class.java, ViewGroup::class.java, Boolean::class.java) | ||
| .invoke(null, layoutInflater, parent, attachToParent) as VB | ||
| }.also { binding -> | ||
| if (binding is ViewDataBinding) { | ||
| binding.lifecycleOwner = viewLifecycleOwner | ||
| } | ||
| } | ||
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| private fun <VB : ViewBinding> withGenericBindingClass(any: Any, block: (Class<VB>) -> VB): VB { | ||
| var genericSuperclass = any.javaClass.genericSuperclass | ||
| var superclass = any.javaClass.superclass | ||
| while (superclass != null) { | ||
| if (genericSuperclass is ParameterizedType) { | ||
| try { | ||
| return block.invoke(genericSuperclass.actualTypeArguments[1] as Class<VB>) | ||
| } catch (e: NoSuchMethodException) { | ||
| } catch (e: ClassCastException) { | ||
| } catch (e: InvocationTargetException) { | ||
| throw e.targetException | ||
| } | ||
| } | ||
| genericSuperclass = superclass.genericSuperclass | ||
| superclass = superclass.superclass | ||
| } | ||
| throw IllegalArgumentException("There is no generic of ViewBinding.") | ||
| } |
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