fix: Can load more content

app/src/main/java/com/lsp/view/activity/main/MainActivity.kt

@@ -85,7 +85,7 @@ class MainActivity : AppCompatActivity() {
         viewModel.adapter.apply {
             setLoadMoreListener(object :PostAdapter.OnScrollToBottom{
                 override fun event(position: Int) {
-                    viewModel.appendPost()
+                    viewModel.fetchMore()
                 }
 
             })

app/src/main/java/com/lsp/view/activity/main/PostAdapter.kt

@@ -38,7 +38,7 @@ class PostAdapter(val context: Context):
     fun appendDate(list: List<YandPost>){
         val pos = postList.size
         postList.addAll(list)
-        notifyItemRangeInserted(pos, list.size)
+        notifyItemRangeInserted(pos-1, list.size)
     }
 
     override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): ViewHolder {

app/src/main/java/com/lsp/view/model/MainViewModel.kt

@@ -72,21 +72,19 @@ class MainViewModel(private val repository: PostRepository,context: Context):Vie
 
     }
 
-    private fun fetchNewPost(){
+    private fun fetchNewPost(append:Boolean = false){
         fetchJob?.cancel()
         fetchJob = viewModelScope.launch(Dispatchers.IO) {
-
             _uiState.value.isRefreshing.postValue(true)
-
             try {
-                 val postList = repository.fetchPostData(
+                val postList = repository.fetchPostData(
                     _uiState.value.nowSearchText.value,
                     _uiState.value.isSafe,
                     _uiState.value.nowPage
                 )
 
                 launch(Dispatchers.Main) {
-                    if (_uiState.value.isAppend){
+                    if (append){
                         adapter.appendDate(postList)
                     }else{
                         adapter.pushNewData(postList)
@@ -101,8 +99,6 @@ class MainViewModel(private val repository: PostRepository,context: Context):Vie
 
         }
 
-
-
     }
 
 
@@ -124,18 +120,9 @@ class MainViewModel(private val repository: PostRepository,context: Context):Vie
         fetchNewPost()
     }
 
-    fun appendPost(){
-
-        _uiState.update {
-            it.copy(isAppend = true)
-        }
-
-        fetchNewPost()
-
-        _uiState.update {
-            it.copy(isAppend = false)
-        }
-
+    fun fetchMore(){
+        _uiState.value.nowPage++
+        fetchNewPost(true)
     }
 
     fun updateSafeMode(mode:Boolean){

app/src/main/java/com/lsp/view/model/UiState.kt

@@ -8,8 +8,7 @@ data class UiState(
     var nowSearchText:MutableLiveData<String> = MutableLiveData(""),
     val nowSourceName: MutableLiveData<String> = MutableLiveData(),
     val isSafe: Boolean = true, //安全模式
-    val nowPage:Int = 1,
-    val isAppend:Boolean = false
+    var nowPage:Int = 1,
 ){
     fun switchShowSearchBar(){
         showSearchBar = !showSearchBar

app/src/main/java/com/lsp/view/repository/exception/LoggerException.kt

@@ -0,0 +1,13 @@
+package com.lsp.view.repository.exception
+
+import android.util.Log
+
+open class LoggerException(override val message: String?):Exception() {
+    init {
+        logMessage()
+    }
+
+    private fun logMessage(){
+        Log.e(this::class.java.simpleName,message.toString())
+    }
+}

app/src/main/java/com/lsp/view/repository/exception/NetworkUnableConnectException.kt

@@ -2,5 +2,5 @@ package com.lsp.view.repository.exception
 
 import okhttp3.ResponseBody
 
-class NetworkErrorException(override val message: String?) : Exception() {
+class NetworkErrorException(override val message: String?) : LoggerException(message) {
 }

app/src/main/java/com/lsp/view/repository/exception/UnableConstructObjectException.kt

@@ -2,5 +2,5 @@ package com.lsp.view.repository.exception
 
 import java.lang.Exception
 
-class UnableConstructObjectException(override val message: String?):Exception(message) {
+class UnableConstructObjectException(override val message: String?):LoggerException(message) {
 }