Modify:增加fragment，activity重建判断，增加fragment重建示例页面。

lib_base/src/main/java/com/quyunshuo/androidbaseframemvvm/base/mvvm/v/BaseFrameActivity.kt

@@ -7,6 +7,7 @@ import com.alibaba.android.arouter.launcher.ARouter
 import com.quyunshuo.androidbaseframemvvm.base.utils.BindingReflex
 import com.quyunshuo.androidbaseframemvvm.base.utils.EventBusRegister
 import com.quyunshuo.androidbaseframemvvm.base.utils.EventBusUtils
+import com.quyunshuo.androidbaseframemvvm.base.utils.ViewRecreateHelper
 
 /**
  * Activity基类
@@ -20,9 +21,16 @@ abstract class BaseFrameActivity<VB : ViewBinding> : AppCompatActivity(), FrameV
         BindingReflex.reflexViewBinding(javaClass, layoutInflater)
     }
 
+    /**
+     * activity页面重建帮助类
+     */
+    private var mStatusHelper: ActivityRecreateHelper? = null
+
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         setContentView(mBinding.root)
+        //处理保存的装填
+        mStatusHelper?.onRestoreInstanceStatus(savedInstanceState)
         // ARouter 依赖注入
         ARouter.getInstance().inject(this)
         // 注册EventBus
@@ -38,4 +46,22 @@ abstract class BaseFrameActivity<VB : ViewBinding> : AppCompatActivity(), FrameV
         )
         super.onDestroy()
     }
+
+    override fun isRecreate(): Boolean = mStatusHelper?.isRecreate ?: false
+
+    override fun onSaveInstanceState(outState: Bundle) {
+        if (mStatusHelper == null) {
+            //仅当触发重建需要保存状态时创建对象
+            mStatusHelper = ActivityRecreateHelper(outState)
+        } else {
+            mStatusHelper?.onSaveInstanceState(outState)
+        }
+        super.onSaveInstanceState(outState)
+    }
+
+    /**
+     * - activity 重建帮助工具类
+     */
+    private class ActivityRecreateHelper(savedInstanceState: Bundle? = null) : ViewRecreateHelper(savedInstanceState)
+
 }

lib_base/src/main/java/com/quyunshuo/androidbaseframemvvm/base/mvvm/v/BaseFrameFragment.kt

@@ -10,6 +10,7 @@ import com.alibaba.android.arouter.launcher.ARouter
 import com.quyunshuo.androidbaseframemvvm.base.utils.BindingReflex
 import com.quyunshuo.androidbaseframemvvm.base.utils.EventBusRegister
 import com.quyunshuo.androidbaseframemvvm.base.utils.EventBusUtils
+import com.quyunshuo.androidbaseframemvvm.base.utils.ViewRecreateHelper
 
 /**
  * Fragment基类
@@ -23,6 +24,11 @@ abstract class BaseFrameFragment<VB : ViewBinding> : Fragment(), FrameView<VB> {
         BindingReflex.reflexViewBinding(javaClass, layoutInflater)
     }
 
+    /**
+     * fragment状态保存工具类
+     */
+    private var mStatusHelper: FragmentStatusHelper? = null
+
     override fun onCreateView(
         inflater: LayoutInflater,
         container: ViewGroup?,
@@ -33,6 +39,8 @@ abstract class BaseFrameFragment<VB : ViewBinding> : Fragment(), FrameView<VB> {
 
     override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
         super.onViewCreated(view, savedInstanceState)
+        //处理恢复
+        mStatusHelper?.onRestoreInstanceStatus(savedInstanceState)
         // ARouter 依赖注入
         ARouter.getInstance().inject(this)
         // 注册EventBus
@@ -42,10 +50,31 @@ abstract class BaseFrameFragment<VB : ViewBinding> : Fragment(), FrameView<VB> {
         initRequestData()
     }
 
+    override fun isRecreate(): Boolean = mStatusHelper?.isRecreate ?: false
+
+    /**
+     * 页面可能重建的时候回执行此方法，进行当前页面状态保存
+     */
+    override fun onSaveInstanceState(outState: Bundle) {
+        if (mStatusHelper == null) {
+            //仅当触发重建需要保存状态时创建对象
+            mStatusHelper = FragmentStatusHelper(outState)
+        } else {
+            mStatusHelper?.onSaveInstanceState(outState)
+        }
+        super.onSaveInstanceState(outState)
+    }
+
     override fun onDestroy() {
         if (javaClass.isAnnotationPresent(EventBusRegister::class.java)) EventBusUtils.unRegister(
             this
         )
         super.onDestroy()
     }
+
+    /**
+     * - fragment状态保存帮助类；
+     * - 暂时没有其他需要保存的--空继承
+     */
+    private class FragmentStatusHelper(savedInstanceState: Bundle? = null) : ViewRecreateHelper(savedInstanceState)
 }

lib_base/src/main/java/com/quyunshuo/androidbaseframemvvm/base/mvvm/v/FrameView.kt

@@ -20,7 +20,12 @@ interface FrameView<VB : ViewBinding> {
     fun initLiveDataObserve()
 
     /**
-     * 初始化界面创建时的数据请求
+     * 初始化界面创建时的数据请求,尝试在此方法内调用[isRecreate]进行重建判断，防止数据重复获取
      */
     fun initRequestData()
+
+    /**
+     * 页面是否重建，fragment被回收重新展示的时候为true，系统环境发生变化activity重新创建时为true
+     */
+    fun isRecreate(): Boolean
 }

lib_base/src/main/java/com/quyunshuo/androidbaseframemvvm/base/utils/ViewRecreateHelper.kt

@@ -0,0 +1,42 @@
+package com.quyunshuo.androidbaseframemvvm.base.utils
+
+import android.os.Bundle
+
+/**
+ * @author DBoy 2021/7/8
+ *
+ * - 文件描述 : 视图，activity，fragment重建帮助类
+ */
+open class ViewRecreateHelper(savedInstanceState: Bundle?=null) {
+    /**
+     * 重建标记key
+     */
+    private val KEY_RECREATE = "recreate"
+
+    /**
+     * 是否重建
+     */
+    var isRecreate = false
+        private set
+
+    init {
+        if (savedInstanceState!=null) {
+            this.onSaveInstanceState(savedInstanceState)
+        }
+    }
+
+    /**
+     * 恢复状态
+     */
+    open fun onRestoreInstanceStatus(savedInstanceState: Bundle?) {
+        isRecreate = savedInstanceState?.getBoolean(KEY_RECREATE) ?: false
+    }
+
+    /**
+     * 保存状态
+     */
+    open fun onSaveInstanceState(bundle: Bundle) {
+        bundle.putBoolean(KEY_RECREATE, true)
+    }
+
+}