From 5a6b13de84d030bed5939ce19000e98c54fcc4ed Mon Sep 17 00:00:00 2001
From: kunfei <gekunfei@live.com>
Date: Sat, 15 Feb 2020 18:31:11 +0800
Subject: [PATCH] =?UTF-8?q?feat:=20=E4=BC=98=E5=8C=96=E4=BB=A3=E7=A0=81?=
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---
 .../java/io/legado/app/ui/widget/LabelsBar.kt | 33 ++++++++++++++-----
 1 file changed, 24 insertions(+), 9 deletions(-)

diff --git a/app/src/main/java/io/legado/app/ui/widget/LabelsBar.kt b/app/src/main/java/io/legado/app/ui/widget/LabelsBar.kt
index b0bf97779..22f982cf6 100644
--- a/app/src/main/java/io/legado/app/ui/widget/LabelsBar.kt
+++ b/app/src/main/java/io/legado/app/ui/widget/LabelsBar.kt
@@ -3,15 +3,18 @@ package io.legado.app.ui.widget
 import android.content.Context
 import android.util.AttributeSet
 import android.widget.LinearLayout
+import android.widget.TextView
 import io.legado.app.ui.widget.text.AccentBgTextView
 import io.legado.app.utils.dp
 
 
 class LabelsBar(context: Context, attrs: AttributeSet?) : LinearLayout(context, attrs) {
 
+    private val unUsedViews = arrayListOf<TextView>()
+    private val usedViews = arrayListOf<TextView>()
 
     fun setLabels(labels: Array<String>) {
-        removeAllViews()
+        clear()
         labels.forEach {
             addLabel(it)
         }
@@ -25,18 +28,30 @@ class LabelsBar(context: Context, attrs: AttributeSet?) : LinearLayout(context,
     }
 
     fun clear() {
+        unUsedViews.addAll(usedViews)
+        usedViews.clear()
         removeAllViews()
     }
 
     fun addLabel(label: String) {
-        addView(AccentBgTextView(context, null).apply {
-            setPadding(3.dp, 0, 3.dp, 0)
-            setRadios(2)
-            val lp = LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT)
-            lp.setMargins(0, 0, 2.dp, 0)
-            layoutParams = lp
-            text = label
-        })
+        val tv = if (unUsedViews.isEmpty()) {
+            AccentBgTextView(context, null).apply {
+                setPadding(3.dp, 0, 3.dp, 0)
+                setRadios(2)
+                val lp = LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT)
+                lp.setMargins(0, 0, 2.dp, 0)
+                layoutParams = lp
+                text = label
+                usedViews.add(this)
+            }
+        } else {
+            unUsedViews.last().apply {
+                usedViews.add(this)
+                unUsedViews.removeAt(unUsedViews.lastIndex)
+            }
+        }
+        tv.text = label
+        addView(tv)
     }
 
 }
\ No newline at end of file