'添加网络请求状态，切换不同View'

Author: fuusy

app/src/main/AndroidManifest.xml

@@ -1,5 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
     package="com.fuusy.jetpackkt">
 
     <uses-permission android:name="android.permission.INTERNET" />
@@ -9,11 +10,12 @@
     <application
         android:name=".MainApp"
         android:allowBackup="true"
-        android:icon="@mipmap/ic_launcher"
+        android:icon="@mipmap/ic_android"
         android:label="@string/app_name"
-        android:roundIcon="@mipmap/ic_launcher_round"
+        android:roundIcon="@mipmap/ic_android"
         android:supportsRtl="true"
-        android:theme="@style/AppTheme">
+        android:theme="@style/AppTheme"
+        tools:replace="android:icon">
 
         <activity
             android:name=".MainActivity"

app/src/main/java/com/fuusy/jetpackkt/MainActivity.kt

@@ -43,8 +43,9 @@ class MainActivity : BaseActivity<ActivityMainBinding>() {
     private lateinit var mFragmentAdapter: VpFragmentAdapter
 
     override fun initData(savedInstanceState: Bundle?) {
-        setupBottomNavigationBar()
-        currentNavController
+        if (savedInstanceState == null) {
+            setupBottomNavigationBar()
+        }
 
 //        mFragmentAdapter = VpFragmentAdapter(this, fragments)
 //        mBinding?.run {

app/src/main/java/com/fuusy/jetpackkt/MainApp.kt

@@ -4,12 +4,26 @@ import android.app.Application
 import android.content.Context
 import androidx.multidex.MultiDex
 import com.alibaba.android.arouter.launcher.ARouter
+import com.fuusy.common.loadsir.EmptyCallback
+import com.fuusy.common.loadsir.ErrorCallback
+import com.fuusy.common.loadsir.LoadingCallback
+import com.kingja.loadsir.core.LoadSir
 
 class MainApp : Application() {
 
     override fun onCreate() {
         super.onCreate()
         initARouter()
+        initLoadSir()
+    }
+
+    private fun initLoadSir() {
+        LoadSir.beginBuilder()
+            .addCallback(ErrorCallback())
+            .addCallback(LoadingCallback())
+            .addCallback(EmptyCallback())
+            .setDefaultCallback(LoadingCallback::class.java)
+            .commit()
     }
 
     private fun initARouter() {

app/src/main/res/layout/activity_main.xml

@@ -11,6 +11,7 @@
         android:layout_width="match_parent"
         android:layout_height="match_parent"
         android:orientation="vertical"
+        android:fitsSystemWindows="true"
         android:background="@color/color_ffffff">
 
         <androidx.fragment.app.FragmentContainerView

app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml

@@ -1,5 +1,5 @@
-<?xml version="1.0" encoding="utf-8"?>
-<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
-    <background android:drawable="@drawable/ic_launcher_background"/>
-    <foreground android:drawable="@drawable/ic_launcher_foreground"/>
+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@drawable/ic_launcher_background"/>
+    <foreground android:drawable="@drawable/ic_launcher_foreground"/>
 </adaptive-icon>

app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml

@@ -1,5 +1,5 @@
-<?xml version="1.0" encoding="utf-8"?>
-<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
-    <background android:drawable="@drawable/ic_launcher_background"/>
-    <foreground android:drawable="@drawable/ic_launcher_foreground"/>
+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@drawable/ic_launcher_background"/>
+    <foreground android:drawable="@drawable/ic_launcher_foreground"/>
 </adaptive-icon>

app/src/main/res/mipmap-xhdpi/ic_android.jpg

@@ -13,4 +13,5 @@ dependencies {
     api 'com.blankj:utilcodex:1.29.0'
     implementation("com.tencent:mmkv-static:1.2.1")
 
+    api 'com.kingja.loadsir:loadsir:1.3.8'
 }

app/src/main/res/mipmap-xxhdpi/ic_android.jpg

@@ -11,55 +11,81 @@ import androidx.databinding.DataBindingUtil
 import androidx.databinding.ViewDataBinding
 import androidx.fragment.app.Fragment
 import androidx.lifecycle.Observer
+import com.fuusy.common.R
+import com.fuusy.common.databinding.BaseFragmentLayoutBinding
+import com.fuusy.common.loadsir.EmptyCallback
+import com.fuusy.common.loadsir.ErrorCallback
+import com.fuusy.common.network.IStateView
 import com.fuusy.common.support.Constants
+import com.fuusy.common.support.NetStateHelper
 import com.fuusy.common.utils.SpUtils
 import com.fuusy.common.view.LoadingDialog
+import com.kingja.loadsir.callback.Callback
+import com.kingja.loadsir.core.LoadService
+import com.kingja.loadsir.core.LoadSir
 import retrofit2.HttpException
 import java.net.SocketTimeoutException
 
 private const val TAG = "BaseFragment"
-abstract class BaseFragment<T : ViewDataBinding, VM : BaseViewModel> : Fragment {
 
-
-    constructor() : super()
+abstract class BaseFragment<T : ViewDataBinding, VM : BaseViewModel> : Fragment(),
+    NetStateHelper.OnReloadListener {
 
     var mBinding: T? = null
     var mViewModel: VM? = null
     private lateinit var mContext: Context
     private lateinit var mLoadingDialog: LoadingDialog
+    private lateinit var loadService: LoadService<Any>
+    private lateinit var mBaseContainBinding: BaseFragmentLayoutBinding
+
+    //请求失败时View
+    private lateinit var errorView: View
+
+    //请求成功时View
+    private lateinit var successView: View
+
+    //请求成功但数据为空时View
+    private lateinit var emptyView: View
+    private lateinit var netStateHelper: NetStateHelper
+    
+
 
     override fun onCreateView(
         inflater: LayoutInflater,
         container: ViewGroup?,
         savedInstanceState: Bundle?
     ): View? {
+        mBaseContainBinding =
+            DataBindingUtil.inflate(inflater, R.layout.base_fragment_layout, container, false)
         mBinding = DataBindingUtil.inflate(inflater, getLayoutId(), container, false)
-        return mBinding?.root
+        netStateHelper = NetStateHelper(context,container,mBinding?.root!!,mBaseContainBinding.baseContainer,this)
+
+        showSuccess()
+        return mBaseContainBinding.root
     }
 
     override fun onAttach(context: Context) {
         super.onAttach(context)
         mContext = context
     }
+
     override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
         super.onViewCreated(view, savedInstanceState)
         mLoadingDialog = LoadingDialog(view.context, false)
-
         mViewModel = getViewModel()
 
-        mViewModel?.loadingLiveData?.observe(this, Observer {
+        mViewModel?.loadingLiveData?.observe(viewLifecycleOwner, Observer {
             if (it) {
                 //show loading
-                Log.d(TAG, "onViewCreated: show loading")
                 showLoading()
             } else {
                 Log.d(TAG, "onViewCreated: not show loading")
                 dismissLoading()
             }
         })
-
-        mViewModel?.errorLiveData?.observe(this, Observer {
-            Log.d(TAG, "onViewCreated: error ${it.message}")
+        mViewModel?.errorLiveData?.observe(viewLifecycleOwner, Observer {
+            Log.d(TAG, "onViewCreated: error ")
+            showError()
             throwableHandler(it)
         })
         initData()
@@ -96,7 +122,7 @@ abstract class BaseFragment<T : ViewDataBinding, VM : BaseViewModel> : Fragment
             is HttpException -> {
                 if (e.code() == 504) {
                     showToast("网络异常，请检查您的网络状态")
-                }else if (e.code() == 404) {
+                } else if (e.code() == 404) {
                     showToast("请求地址不存在")
                 }
             }
@@ -116,4 +142,28 @@ abstract class BaseFragment<T : ViewDataBinding, VM : BaseViewModel> : Fragment
         }
         return true
     }
+
+
+    /**
+     * 根据net请求状态，数据为null
+     */
+    protected fun showEmpty() {
+        netStateHelper.showEmpty()
+    }
+
+    protected fun showError() {
+        netStateHelper.showError()
+    }
+
+    protected fun showSuccess() {
+        netStateHelper.showSuccess()
+    }
+
+    override fun onReload() {
+        onRetry()
+    }
+
+    protected fun onRetry() {
+        Log.d(TAG, "onRetry: ")
+    }
 }