优化

app/src/main/java/io/legado/app/utils/canvasrecorder/CanvasRecorderExtensions.kt

@@ -23,8 +23,8 @@ fun CanvasRecorder.recordIfNeeded(view: View): Boolean {
 }
 
 inline fun CanvasRecorder.record(width: Int, height: Int, block: Canvas.() -> Unit) {
+    val canvas = beginRecording(width, height)
     try {
-        val canvas = beginRecording(width, height)
         canvas.withSave {
             block()
         }