feat: 优化代码

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

@@ -479,6 +479,8 @@ class ReadBookActivity : VMBaseActivity<ReadBookViewModel>(R.layout.activity_boo
                 if (!ReadBook.isLocalBook) {
                     tv_chapter_url.text = it.url
                     tv_chapter_url.visible()
+                } else {
+                    tv_chapter_url.gone()
                 }
                 seek_read_page.max = it.pageSize().minus(1)
                 seek_read_page.progress = ReadBook.durPageIndex

app/src/main/java/io/legado/app/utils/ViewExtensions.kt

@@ -40,15 +40,21 @@ fun View.disableAutoFill() = run {
 }
 
 fun View.gone() {
-    visibility = GONE
+    if (visibility != GONE) {
+        visibility = GONE
+    }
 }
 
 fun View.invisible() {
-    visibility = INVISIBLE
+    if (visibility != INVISIBLE) {
+        visibility = INVISIBLE
+    }
 }
 
 fun View.visible() {
-    visibility = VISIBLE
+    if (visibility != VISIBLE) {
+        visibility = VISIBLE
+    }
 }
 
 fun View.visible(visible: Boolean) {

app/src/main/res/layout/view_read_menu.xml

@@ -27,7 +27,6 @@
             android:paddingLeft="10dp"
             android:paddingRight="10dp"
             android:singleLine="true"
-            android:text="@string/chapter"
             android:textSize="12sp"
             android:visibility="gone" />
 
@@ -38,7 +37,6 @@
             android:paddingLeft="10dp"
             android:paddingRight="10dp"
             android:singleLine="true"
-            android:text="@string/chapter"
             android:textSize="12sp"
             android:visibility="gone" />