优化

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

@@ -106,11 +106,6 @@ class BookInfoActivity :
         return super.onMenuOpened(featureId, menu)
     }
 
-    private fun defaultCover(): RequestBuilder<Drawable> {
-        return ImageLoader.load(this, R.drawable.image_cover_default)
-            .apply(bitmapTransform(BlurTransformation(this, 25)))
-    }
-
     private fun showBook(book: Book) {
         showCover(book)
         tv_name.text = book.name
@@ -152,17 +147,18 @@ class BookInfoActivity :
     }
 
     private fun showCover(book: Book) {
-        book.getDisplayCover()?.let {
+        iv_cover.load(book.getDisplayCover(), book.name)
-            ImageLoader.load(this, it)
+        ImageLoader.load(this, book.getDisplayCover())
-                .centerCrop()
-                .into(iv_cover)
-            ImageLoader.load(this, it)
             .transition(DrawableTransitionOptions.withCrossFade(1500))
             .thumbnail(defaultCover())
             .centerCrop()
             .apply(bitmapTransform(BlurTransformation(this, 25)))
             .into(bg_book)  //模糊、渐变、缩小效果
     }
+
+    private fun defaultCover(): RequestBuilder<Drawable> {
+        return ImageLoader.load(this, R.drawable.image_cover_default)
+            .apply(bitmapTransform(BlurTransformation(this, 25)))
     }
 
     private fun showChapter(chapterList: List<BookChapter>) {

app/src/main/java/io/legado/app/ui/main/bookshelf/books/BooksAdapterGrid.kt

@@ -5,7 +5,6 @@ import io.legado.app.R
 import io.legado.app.base.adapter.ItemViewHolder
 import io.legado.app.constant.BookType
 import io.legado.app.data.entities.Book
-import io.legado.app.help.ImageLoader
 import io.legado.app.lib.theme.ATH
 import io.legado.app.utils.invisible
 import kotlinx.android.synthetic.main.item_bookshelf_grid.view.*
@@ -21,13 +20,7 @@ class BooksAdapterGrid(context: Context, private val callBack: CallBack) :
                 ATH.applyBackgroundTint(this)
                 tv_name.text = item.name
                 bv_author.text = item.author
-                item.getDisplayCover()?.let {
+                iv_cover.load(item.getDisplayCover(), item.name)
-                    ImageLoader.load(context, it)//Glide自动识别http://和file://
-                        .placeholder(R.drawable.image_cover_default)
-                        .error(R.drawable.image_cover_default)
-                        .centerCrop()
-                        .into(iv_cover)
-                }
                 onClick { callBack.open(item) }
                 onLongClick {
                     callBack.openBookInfo(item)

app/src/main/java/io/legado/app/ui/main/bookshelf/books/BooksAdapterList.kt

@@ -5,7 +5,6 @@ import io.legado.app.R
 import io.legado.app.base.adapter.ItemViewHolder
 import io.legado.app.constant.BookType
 import io.legado.app.data.entities.Book
-import io.legado.app.help.ImageLoader
 import io.legado.app.lib.theme.ATH
 import io.legado.app.utils.invisible
 import kotlinx.android.synthetic.main.item_bookshelf_list.view.*
@@ -23,13 +22,7 @@ class BooksAdapterList(context: Context, private val callBack: CallBack) :
                 tv_author.text = item.author
                 tv_read.text = item.durChapterTitle
                 tv_last.text = item.latestChapterTitle
-                item.getDisplayCover()?.let {
+                iv_cover.load(item.getDisplayCover(), item.name)
-                    ImageLoader.load(context, it)//Glide自动识别http://和file://
-                        .placeholder(R.drawable.image_cover_default)
-                        .error(R.drawable.image_cover_default)
-                        .centerCrop()
-                        .into(iv_cover)
-                }
                 onClick { callBack.open(item) }
                 onLongClick {
                     callBack.openBookInfo(item)

app/src/main/java/io/legado/app/ui/widget/image/CoverImageView.kt

@@ -4,9 +4,15 @@ import android.annotation.SuppressLint
 import android.content.Context
 import android.graphics.Canvas
 import android.graphics.Path
+import android.graphics.drawable.Drawable
 import android.text.TextPaint
 import android.util.AttributeSet
-import io.legado.app.utils.dp
+import com.bumptech.glide.load.DataSource
+import com.bumptech.glide.load.engine.GlideException
+import com.bumptech.glide.request.RequestListener
+import com.bumptech.glide.request.target.Target
+import io.legado.app.R
+import io.legado.app.help.ImageLoader
 
 
 class CoverImageView : androidx.appcompat.widget.AppCompatImageView {
@@ -26,16 +32,6 @@ class CoverImageView : androidx.appcompat.widget.AppCompatImageView {
         defStyleAttr
     )
 
-    init {
-        textPaint.textSize = 13.dp.toFloat()
-    }
-
-    override fun onLayout(changed: Boolean, left: Int, top: Int, right: Int, bottom: Int) {
-        super.onLayout(changed, left, top, right, bottom)
-        width = getWidth().toFloat()
-        height = getHeight().toFloat()
-    }
-
     override fun onMeasure(widthMeasureSpec: Int, heightMeasureSpec: Int) {
         val measuredWidth = MeasureSpec.getSize(widthMeasureSpec)
         val measuredHeight = measuredWidth * 7 / 5
@@ -45,6 +41,13 @@ class CoverImageView : androidx.appcompat.widget.AppCompatImageView {
         )
     }
 
+    override fun onLayout(changed: Boolean, left: Int, top: Int, right: Int, bottom: Int) {
+        super.onLayout(changed, left, top, right, bottom)
+        width = getWidth().toFloat()
+        height = getHeight().toFloat()
+        textPaint.textSize = width / 9
+    }
+
     override fun onDraw(canvas: Canvas) {
         if (width >= 10 && height > 10) {
             @SuppressLint("DrawAllocation")
@@ -77,4 +80,38 @@ class CoverImageView : androidx.appcompat.widget.AppCompatImageView {
         val width = height * 5 / 7
         minimumWidth = width
     }
+
+    fun load(path: String?, name: String) {
+        if (path.isNullOrEmpty()) {
+            setName(name)
+        } else {
+            ImageLoader.load(context, path)//Glide自动识别http://和file://
+                .placeholder(R.drawable.image_cover_default)
+                .error(R.drawable.image_cover_default)
+                .listener(object : RequestListener<Drawable> {
+                    override fun onLoadFailed(
+                        e: GlideException?,
+                        model: Any?,
+                        target: Target<Drawable>?,
+                        isFirstResource: Boolean
+                    ): Boolean {
+                        setName(name)
+                        return false
+                    }
+
+                    override fun onResourceReady(
+                        resource: Drawable?,
+                        model: Any?,
+                        target: Target<Drawable>?,
+                        dataSource: DataSource?,
+                        isFirstResource: Boolean
+                    ): Boolean {
+                        return false
+                    }
+
+                })
+                .centerCrop()
+                .into(this)
+        }
+    }
 }