优化

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

@@ -17,8 +17,10 @@ import io.legado.app.help.ImageLoader
 class CoverImageView : androidx.appcompat.widget.AppCompatImageView {
     internal var width: Float = 0.toFloat()
     internal var height: Float = 0.toFloat()
-
+    private var nameHeight = 0f
-    private val textPaint = TextPaint()
+    private var authorHeight = 0f
+    private val namePaint = TextPaint()
+    private val authorPaint = TextPaint()
     private var name: String? = null
     private var author: String? = null
 
@@ -33,10 +35,14 @@ class CoverImageView : androidx.appcompat.widget.AppCompatImageView {
     )
 
     init {
-        textPaint.typeface = Typeface.DEFAULT_BOLD
+        namePaint.typeface = Typeface.DEFAULT_BOLD
-        textPaint.isAntiAlias = true
+        namePaint.isAntiAlias = true
-        textPaint.textAlign = Paint.Align.CENTER
+        namePaint.textAlign = Paint.Align.CENTER
-        textPaint.textSkewX = -0.2f
+        namePaint.textSkewX = -0.2f
+        authorPaint.typeface = Typeface.DEFAULT
+        authorPaint.isAntiAlias = true
+        authorPaint.textAlign = Paint.Align.CENTER
+        authorPaint.textSkewX = -0.1f
     }
 
     override fun onMeasure(widthMeasureSpec: Int, heightMeasureSpec: Int) {
@@ -52,8 +58,12 @@ class CoverImageView : androidx.appcompat.widget.AppCompatImageView {
         super.onLayout(changed, left, top, right, bottom)
         width = getWidth().toFloat()
         height = getHeight().toFloat()
-        textPaint.textSize = width / 6
+        namePaint.textSize = width / 6
-        textPaint.strokeWidth = textPaint.textSize / 10
+        namePaint.strokeWidth = namePaint.textSize / 10
+        authorPaint.textSize = width / 9
+        authorPaint.strokeWidth = authorPaint.textSize / 10
+        nameHeight = height * 3 / 5
+        authorHeight = nameHeight + authorPaint.fontSpacing
     }
 
     override fun onDraw(canvas: Canvas) {
@@ -75,12 +85,20 @@ class CoverImageView : androidx.appcompat.widget.AppCompatImageView {
         }
         super.onDraw(canvas)
         name?.let {
-            textPaint.color = Color.WHITE
+            namePaint.color = Color.WHITE
-            textPaint.style = Paint.Style.STROKE
+            namePaint.style = Paint.Style.STROKE
-            canvas.drawText(it, width / 2, height * 3 / 5, textPaint)
+            canvas.drawText(it, width / 2, nameHeight, namePaint)
-            textPaint.color = Color.BLACK
+            namePaint.color = Color.BLACK
-            textPaint.style = Paint.Style.FILL
+            namePaint.style = Paint.Style.FILL
-            canvas.drawText(it, width / 2, height * 3 / 5, textPaint)
+            canvas.drawText(it, width / 2, nameHeight, namePaint)
+        }
+        author?.let {
+            authorPaint.color = Color.WHITE
+            authorPaint.style = Paint.Style.STROKE
+            canvas.drawText(it, width / 2, authorHeight, authorPaint)
+            authorPaint.color = Color.BLACK
+            authorPaint.style = Paint.Style.FILL
+            canvas.drawText(it, width / 2, authorHeight, authorPaint)
         }
     }
 
@@ -91,7 +109,12 @@ class CoverImageView : androidx.appcompat.widget.AppCompatImageView {
                 name.length > 5 -> name.substring(0, 4) + "…"
                 else -> name
             }
-        this.author = author
+        this.author =
+            when {
+                author == null -> null
+                author.length > 8 -> author.substring(0, 7) + "…"
+                else -> author
+            }
         invalidate()
     }