From 8970ed53710f4e2cb889b3ddb5987cbfa777da21 Mon Sep 17 00:00:00 2001
From: Sysking1024 <38101886+Sysking1024@users.noreply.github.com>
Date: Sun, 28 Jun 2020 22:07:17 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BF=AE=E5=A4=8DTalkBack=E4=B8=8B=E8=81=9A?=
 =?UTF-8?q?=E7=84=A6=E5=88=B0TabView=E6=97=B6TalkBack=E4=B8=8D=E6=9C=97?=
 =?UTF-8?q?=E8=AF=BBTabView=E6=98=BE=E7=A4=BA=E7=9A=84=E6=96=87=E6=9C=AC?=
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TalkBack是Google推出的Android上的屏幕阅读器。透过TalkBack能让视力受损用户与Android设备上的app交互。当TalkBack聚焦TabView时，缺少contentDescription，TalkBack将不会向用户朗读所聚焦的TabView显示的文本，用户将无法得知所聚焦TabView的含义。
---
 .../java/com/qmuiteam/qmui/widget/tab/QMUITabView.java | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/qmui/src/main/java/com/qmuiteam/qmui/widget/tab/QMUITabView.java b/qmui/src/main/java/com/qmuiteam/qmui/widget/tab/QMUITabView.java
index f5266c7c..89cfc21b 100644
--- a/qmui/src/main/java/com/qmuiteam/qmui/widget/tab/QMUITabView.java
+++ b/qmui/src/main/java/com/qmuiteam/qmui/widget/tab/QMUITabView.java
@@ -666,6 +666,16 @@ public class QMUITabView extends FrameLayout implements IQMUISkinHandlerView {
         onDrawTab(canvas);
         super.draw(canvas);
     }
+    
+    @Override
+    public void onInitializeAccessibilityNodeInfo(AccessibilityNodeInfo info) {
+        super.onInitializeAccessibilityNodeInfo(info);
+
+        // 给每个tab添加文本标签
+        // 使得TalkBack等屏幕阅读器focus 到 tab上时可将tab的文本通过TTS朗读出来
+        // 这样视力受损用户（如盲人、低、弱视力）就能和widget交互
+        info.setContentDescription(mTab.getText());
+    }
 
     protected void onDrawTab(Canvas canvas) {
         if (mTab == null) {