up

app/src/main/java/io/legado/app/ui/book/search/SearchActivity.kt

@@ -171,7 +171,7 @@ class SearchActivity : VMBaseActivity<SearchViewModel>(R.layout.activity_book_se
     }
 
     private fun scrollToBottom() {
-        if (!viewModel.isLoading && viewModel.searchKey.isNotEmpty()) {
+        if (!viewModel.isLoading && viewModel.searchKey.isNotEmpty() && loadMoreView.hasMore) {
             viewModel.search("")
         }
     }
@@ -228,6 +228,7 @@ class SearchActivity : VMBaseActivity<SearchViewModel>(R.layout.activity_book_se
 
     override fun searchFinally() {
         refresh_progress_bar.isAutoLoading = false
+        loadMoreView.startLoad()
         fb_stop.invisible()
     }
 

app/src/main/java/io/legado/app/ui/explore/ExploreShowActivity.kt

@@ -14,7 +14,6 @@ import io.legado.app.ui.book.info.BookInfoActivity
 import io.legado.app.ui.widget.LoadMoreView
 import io.legado.app.utils.getViewModel
 import kotlinx.android.synthetic.main.activity_explore_show.*
-import kotlinx.android.synthetic.main.view_load_more.view.*
 import org.jetbrains.anko.startActivity
 
 class ExploreShowActivity : VMBaseActivity<ExploreShowViewModel>(R.layout.activity_explore_show),
@@ -40,7 +39,7 @@ class ExploreShowActivity : VMBaseActivity<ExploreShowViewModel>(R.layout.activi
         recycler_view.adapter = adapter
         loadMoreView = LoadMoreView(this)
         adapter.addFooterView(loadMoreView)
-        loadMoreView.rotate_loading.show()
+        loadMoreView.startLoad()
         recycler_view.addOnScrollListener(object : RecyclerView.OnScrollListener() {
             override fun onScrolled(recyclerView: RecyclerView, dx: Int, dy: Int) {
                 super.onScrolled(recyclerView, dx, dy)

app/src/main/java/io/legado/app/ui/rss/article/RssArticlesActivity.kt

@@ -1,23 +1,20 @@
 package io.legado.app.ui.rss.article
 
 import android.os.Bundle
-import android.view.LayoutInflater
 import android.view.Menu
 import android.view.MenuItem
-import android.view.View
 import androidx.core.content.ContextCompat
-import androidx.lifecycle.LiveData
 import androidx.lifecycle.Observer
 import androidx.recyclerview.widget.DividerItemDecoration
 import androidx.recyclerview.widget.LinearLayoutManager
 import androidx.recyclerview.widget.RecyclerView
-import io.legado.app.App
 import io.legado.app.R
 import io.legado.app.base.VMBaseActivity
 import io.legado.app.data.entities.RssArticle
 import io.legado.app.lib.theme.ATH
 import io.legado.app.ui.rss.read.ReadRssActivity
 import io.legado.app.ui.rss.source.edit.RssSourceEditActivity
+import io.legado.app.ui.widget.LoadMoreView
 import io.legado.app.utils.getViewModel
 import kotlinx.android.synthetic.main.activity_rss_artivles.*
 import kotlinx.android.synthetic.main.view_load_more.view.*
@@ -26,26 +23,22 @@ import org.jetbrains.anko.startActivity
 import org.jetbrains.anko.startActivityForResult
 
 class RssArticlesActivity : VMBaseActivity<RssArticlesViewModel>(R.layout.activity_rss_artivles),
+    RssArticlesViewModel.CallBack,
     RssArticlesAdapter.CallBack {
 
     override val viewModel: RssArticlesViewModel
         get() = getViewModel(RssArticlesViewModel::class.java)
 
+    override lateinit var adapter: RssArticlesAdapter
     private val editSource = 12319
-    private var adapter: RssArticlesAdapter? = null
-    private var rssArticlesData: LiveData<List<RssArticle>>? = null
-    private var url: String? = null
-    private lateinit var loadMoreView: View
+    private lateinit var loadMoreView: LoadMoreView
 
     override fun onActivityCreated(savedInstanceState: Bundle?) {
-        initView()
+        viewModel.callBack = this
         viewModel.titleLiveData.observe(this, Observer {
             title_bar.title = it
         })
-        url = intent.getStringExtra("url")
-        url?.let {
-            initData(it)
-        }
+        initView()
         refresh_recycler_view.startLoading()
     }
 
@@ -60,11 +53,9 @@ class RssArticlesActivity : VMBaseActivity<RssArticlesViewModel>(R.layout.activi
                 startActivityForResult<RssSourceEditActivity>(editSource, Pair("data", it))
             }
             R.id.menu_clear -> {
-                intent.getStringExtra("url")?.let {
+                viewModel.url?.let {
                     refresh_progress_bar.isAutoLoading = true
-                    viewModel.clear(it) {
-                        refresh_progress_bar.isAutoLoading = false
-                    }
+                    viewModel.clear()
                 }
             }
         }
@@ -82,13 +73,11 @@ class RssArticlesActivity : VMBaseActivity<RssArticlesViewModel>(R.layout.activi
             })
         adapter = RssArticlesAdapter(this, this)
         recycler_view.adapter = adapter
+        loadMoreView = LoadMoreView(this)
+        adapter.addFooterView(loadMoreView)
         refresh_recycler_view.onRefreshStart = {
-            url?.let {
-                viewModel.loadContent(it, {
-                    refresh_progress_bar.isAutoLoading = false
-                }, {
-                    addLoadMoreView()
-                })
+            viewModel.url?.let {
+                viewModel.loadContent()
             }
         }
         recycler_view.addOnScrollListener(object : RecyclerView.OnScrollListener() {
@@ -101,27 +90,19 @@ class RssArticlesActivity : VMBaseActivity<RssArticlesViewModel>(R.layout.activi
         })
     }
 
-    private fun addLoadMoreView() {
-        if (adapter?.getFooterCount() == 0) {
-            loadMoreView =
-                LayoutInflater.from(this).inflate(R.layout.view_load_more, recycler_view, false)
-            adapter?.addFooterView(loadMoreView)
-        }
-    }
-
-    private fun initData(origin: String) {
-        rssArticlesData?.removeObservers(this)
-        rssArticlesData = App.db.rssArticleDao().liveByOrigin(origin)
-        rssArticlesData?.observe(this, Observer {
-            adapter?.setItems(it)
-        })
-    }
-
     private fun scrollToBottom() {
-        adapter?.let {
-            if (it.getActualItemCount() > 0) {
+        if (viewModel.isLoading) return
+        if (loadMoreView.hasMore && adapter.getActualItemCount() > 0) {
             loadMoreView.rotate_loading.show()
+            viewModel.loadContent()
+        }
     }
+
+    override fun loadFinally() {
+        if (viewModel.hasMore) {
+            loadMoreView.startLoad()
+        } else {
+            loadMoreView.noMore()
         }
     }
 

app/src/main/java/io/legado/app/ui/rss/article/RssArticlesViewModel.kt

@@ -1,43 +1,57 @@
 package io.legado.app.ui.rss.article
 
 import android.app.Application
+import android.content.Intent
 import androidx.lifecycle.MutableLiveData
 import io.legado.app.App
 import io.legado.app.base.BaseViewModel
 import io.legado.app.data.entities.RssArticle
 import io.legado.app.data.entities.RssSource
 import io.legado.app.model.Rss
-import kotlinx.coroutines.Dispatchers.IO
-import kotlinx.coroutines.withContext
 
 
 class RssArticlesViewModel(application: Application) : BaseViewModel(application) {
+    var callBack: CallBack? = null
+    var url: String? = null
     var rssSource: RssSource? = null
     val titleLiveData = MutableLiveData<String>()
+    private val articles = linkedSetOf<RssArticle>()
+    var isLoading = true
     var page = 1
+    var hasMore = true
 
-    fun loadContent(url: String, onFinally: () -> Unit, loadMore: (() -> Unit)? = null) {
+    fun initData(intent: Intent) {
         execute {
+            url = intent.getStringExtra("url")
+            url?.let { url ->
                 rssSource = App.db.rssSourceDao().getByKey(url)
                 rssSource?.let {
                     titleLiveData.postValue(it.sourceName)
                 } ?: let {
                     rssSource = RssSource(sourceUrl = url)
                 }
+            }
+        }
+    }
+
+    fun loadContent() {
+        isLoading = true
         rssSource?.let { rssSource ->
             Rss.getArticles(rssSource, page, this)
                 .onSuccess {
                     it?.let {
-                            withContext(IO) {
-                                App.db.rssArticleDao().insert(*it.toTypedArray())
+                        val oldSize = articles.size
+                        articles.addAll(it)
+                        if (articles.size == oldSize) {
+                            hasMore = false
+                        } else {
+                            callBack?.adapter?.setItems(articles.toList())
                         }
-                            loadMore?.invoke()
+                        page++
+                        isLoading = false
                     }
                 }.onError {
                     toast(it.localizedMessage)
-                    }.onFinally {
-                        onFinally()
-                    }
                 }
         }
     }
@@ -49,15 +63,14 @@ class RssArticlesViewModel(application: Application) : BaseViewModel(application
         }
     }
 
-    fun clear(url: String, onFinally: () -> Unit) {
-        execute {
-            App.db.rssArticleDao().delete(url)
+    fun clear() {
         page = 1
-            loadContent(url, onFinally)
+        articles.clear()
+        loadContent()
     }
-    }
-
-    fun loadMore() {
 
+    interface CallBack {
+        var adapter: RssArticlesAdapter
+        fun loadFinally()
     }
 }