feat: 优化代码

app/src/main/java/io/legado/app/ui/book/changecover/ChangeCoverDialog.kt

@@ -3,19 +3,24 @@ package io.legado.app.ui.book.changecover
 import android.os.Bundle
 import android.util.DisplayMetrics
 import android.view.LayoutInflater
+import android.view.MenuItem
 import android.view.View
 import android.view.ViewGroup
+import androidx.appcompat.widget.Toolbar
 import androidx.fragment.app.FragmentManager
 import androidx.lifecycle.Observer
 import androidx.recyclerview.widget.DiffUtil
 import androidx.recyclerview.widget.GridLayoutManager
 import io.legado.app.R
 import io.legado.app.base.BaseDialogFragment
+import io.legado.app.constant.Theme
+import io.legado.app.utils.applyTint
 import io.legado.app.utils.getViewModel
 import kotlinx.android.synthetic.main.dialog_change_source.*
 
 
 class ChangeCoverDialog : BaseDialogFragment(),
+    Toolbar.OnMenuItemClickListener,
     CoverAdapter.CallBack {
 
     companion object {
@@ -55,13 +60,19 @@ class ChangeCoverDialog : BaseDialogFragment(),
     }
 
     override fun onFragmentCreated(view: View, savedInstanceState: Bundle?) {
-        viewModel.searchStateData.observe(viewLifecycleOwner, Observer {
-            refresh_progress_bar.isAutoLoading = it
-        })
         tool_bar.setTitle(R.string.change_cover_source)
-        arguments?.let { bundle ->
+        viewModel.initData(arguments)
-            viewModel.initData(bundle)
+        initMenu()
+        initView()
     }
+
+    private fun initMenu() {
+        tool_bar.inflateMenu(R.menu.change_cover)
+        tool_bar.menu.applyTint(requireContext(), Theme.getTheme())
+        tool_bar.setOnMenuItemClickListener(this)
+    }
+
+    private fun initView() {
         recycler_view.layoutManager = GridLayoutManager(requireContext(), 3)
         adapter = CoverAdapter(requireContext(), this)
         recycler_view.adapter = adapter
@@ -70,6 +81,15 @@ class ChangeCoverDialog : BaseDialogFragment(),
 
     override fun observeLiveBus() {
         super.observeLiveBus()
+        viewModel.searchStateData.observe(viewLifecycleOwner, Observer {
+            refresh_progress_bar.isAutoLoading = it
+            if (it) {
+                stopMenuItem?.setIcon(R.drawable.ic_stop_black_24dp)
+            } else {
+                stopMenuItem?.setIcon(R.drawable.ic_refresh_black_24dp)
+            }
+            tool_bar.menu.applyTint(requireContext(), Theme.getTheme())
+        })
         viewModel.searchBooksLiveData.observe(viewLifecycleOwner, Observer {
             val diffResult = DiffUtil.calculateDiff(DiffCallBack(adapter.getItems(), it))
             adapter.setItems(it)
@@ -77,6 +97,16 @@ class ChangeCoverDialog : BaseDialogFragment(),
         })
     }
 
+    override fun onMenuItemClick(item: MenuItem?): Boolean {
+        when (item?.itemId) {
+            R.id.menu_stop -> viewModel.stopSearch()
+        }
+        return false
+    }
+
+    private val stopMenuItem: MenuItem?
+        get() = tool_bar.menu.findItem(R.id.menu_stop)
+
     override fun changeTo(coverUrl: String) {
         callBack?.coverChangeTo(coverUrl)
         dismiss()

app/src/main/java/io/legado/app/ui/book/changecover/ChangeCoverViewModel.kt

@@ -24,7 +24,8 @@ class ChangeCoverViewModel(application: Application) : BaseViewModel(application
     val searchBooksLiveData = MutableLiveData<List<SearchBook>>()
     private val searchBooks = ArrayList<SearchBook>()
 
-    fun initData(bundle: Bundle) {
+    fun initData(arguments: Bundle?) {
+        arguments?.let { bundle ->
             bundle.getString("name")?.let {
                 name = it
             }
@@ -32,6 +33,7 @@ class ChangeCoverViewModel(application: Application) : BaseViewModel(application
                 author = it.replace(AppPattern.authorRegex, "")
             }
         }
+    }
 
     fun loadDbSearchBook() {
         execute {
@@ -77,6 +79,14 @@ class ChangeCoverViewModel(application: Application) : BaseViewModel(application
         }
     }
 
+    fun stopSearch() {
+        if (task?.isActive == true) {
+            task?.cancel()
+        } else {
+            search()
+        }
+    }
+
     override fun onCleared() {
         super.onCleared()
         searchPool.close()

app/src/main/res/menu/change_cover.xml

@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="utf-8"?>
+<menu xmlns:tools="http://schemas.android.com/tools"
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto">
+
+    <item
+        android:id="@+id/menu_stop"
+        android:title="@string/stop"
+        android:icon="@drawable/ic_stop_black_24dp"
+        app:showAsAction="always"
+        tools:ignore="AlwaysShowAction" />
+
+</menu>

app/src/main/res/values/attrs.xml

@@ -163,4 +163,10 @@
         <attr name="radius" />
         <attr name="up_flat_angle" format="boolean" />
     </declare-styleable>
+
+    <declare-styleable name="ArcView">
+        <attr name="arcHeight" format="dimension" />
+        <attr name="bgColor" format="color" />
+        <attr name="arcDirectionTop" format="boolean" />
+    </declare-styleable>
 </resources>

app/src/main/res/values/strings_yxd.xml

@@ -1,9 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<resources>
-    <declare-styleable name="ArcView">
-        <attr name="arcHeight" format="dimension" />
-        <attr name="bgColor" format="color" />
-        <attr name="arcDirectionTop" format="boolean" />
-    </declare-styleable>
-
-</resources>