优化

app/src/main/java/io/legado/app/ui/book/info/BookInfoActivity.kt

@@ -30,6 +30,7 @@ import io.legado.app.ui.book.changecover.ChangeCoverDialog
 import io.legado.app.ui.book.changesource.ChangeBookSourceDialog
 import io.legado.app.ui.book.group.GroupSelectDialog
 import io.legado.app.ui.book.info.edit.BookInfoEditActivity
+import io.legado.app.ui.book.read.PhotoDialog
 import io.legado.app.ui.book.read.ReadBookActivity
 import io.legado.app.ui.book.search.SearchActivity
 import io.legado.app.ui.book.source.edit.BookSourceEditActivity
@@ -104,7 +105,7 @@ class BookInfoActivity :
         viewModel.bookData.observe(this) { showBook(it) }
         viewModel.chapterListData.observe(this) { upLoading(false, it) }
         viewModel.initData(intent)
-        initOnClick()
+        initViewEvent()
     }
 
     override fun onCompatCreateOptionsMenu(menu: Menu): Boolean {
@@ -263,7 +264,7 @@ class BookInfoActivity :
         }
     }
 
-    private fun initOnClick() = binding.run {
+    private fun initViewEvent() = binding.run {
         ivCover.setOnClickListener {
             viewModel.bookData.value?.let {
                 showDialogFragment(
@@ -271,6 +272,12 @@ class BookInfoActivity :
                 )
             }
         }
+        ivCover.setOnLongClickListener {
+            viewModel.bookData.value?.getDisplayCover()?.let { path ->
+                showDialogFragment(PhotoDialog(path))
+            }
+            true
+        }
         tvRead.setOnClickListener {
             viewModel.bookData.value?.let {
                 readBook(it)

app/src/main/java/io/legado/app/ui/book/read/PhotoDialog.kt

@@ -5,6 +5,7 @@ import android.view.View
 import io.legado.app.R
 import io.legado.app.base.BaseDialogFragment
 import io.legado.app.databinding.DialogPhotoViewBinding
+import io.legado.app.model.BookCover
 import io.legado.app.model.ReadBook
 import io.legado.app.ui.book.read.page.provider.ImageProvider
 import io.legado.app.utils.setLayout
@@ -22,6 +23,12 @@ class PhotoDialog() : BaseDialogFragment(R.layout.dialog_photo_view) {
         }
     }
 
+    constructor(path: String) : this() {
+        arguments = Bundle().apply {
+            putString("path", path)
+        }
+    }
+
     private val binding by viewBinding(DialogPhotoViewBinding::bind)
 
     override fun onStart() {
@@ -31,18 +38,24 @@ class PhotoDialog() : BaseDialogFragment(R.layout.dialog_photo_view) {
 
     override fun onFragmentCreated(view: View, savedInstanceState: Bundle?) {
         arguments?.let {
-            val chapterIndex = it.getInt("chapterIndex")
-            val src = it.getString("src")
-            ReadBook.book?.let { book ->
-                src?.let {
-                    execute {
-                        ImageProvider.getImage(book, chapterIndex, src, ReadBook.bookSource)
-                    }.onSuccess { bitmap ->
-                        if (bitmap != null) {
-                            binding.photoView.setImageBitmap(bitmap)
+            val path = it.getString("path")
+            if (path.isNullOrEmpty()) {
+                val chapterIndex = it.getInt("chapterIndex")
+                val src = it.getString("src")
+                ReadBook.book?.let { book ->
+                    src?.let {
+                        execute {
+                            ImageProvider.getImage(book, chapterIndex, src, ReadBook.bookSource)
+                        }.onSuccess { bitmap ->
+                            if (bitmap != null) {
+                                binding.photoView.setImageBitmap(bitmap)
+                            }
                         }
                     }
                 }
+            } else {
+                BookCover.load(requireContext(), path = path)
+                    .into(binding.photoView)
             }
         }