feat: add tab description.

qmui/src/main/java/com/qmuiteam/qmui/widget/tab/QMUITab.java

@@ -76,6 +76,7 @@ public class QMUITab {
     @IconPosition int iconPosition = ICON_POSITION_TOP;
     int gravity = Gravity.CENTER;
     private CharSequence text;
+    private CharSequence description;
     int signCountDigits = 2;
     int signCountHorizontalOffset = 0;
     int signCountVerticalOffset = 0;
@@ -89,7 +90,12 @@ public class QMUITab {
 
 
     QMUITab(CharSequence text) {
+        this(text, text);
+    }
+
+    QMUITab(CharSequence text, CharSequence description) {
         this.text = text;
+        this.description = description;
     }
 
 
@@ -101,6 +107,14 @@ public class QMUITab {
         this.text = text;
     }
 
+    public void setDescription(CharSequence description) {
+        this.description = description;
+    }
+
+    public CharSequence getDescription() {
+        return description;
+    }
+
     public int getIconPosition() {
         return iconPosition;
     }

qmui/src/main/java/com/qmuiteam/qmui/widget/tab/QMUITabBuilder.java

@@ -90,10 +90,9 @@ public class QMUITabBuilder {
      * gravity of text
      */
     private int gravity = Gravity.CENTER;
-    /**
-     * text
-     */
+
     private CharSequence text;
+    private CharSequence description;
 
     /**
      * text typeface in normal state
@@ -172,6 +171,7 @@ public class QMUITabBuilder {
         this.iconPosition = other.iconPosition;
         this.gravity = other.gravity;
         this.text = other.text;
+        this.description = other.description;
         this.signCount = other.signCount;
         this.signCountDigits = other.signCountDigits;
         this.signCountHorizontalOffset = other.signCountHorizontalOffset;
@@ -347,8 +347,13 @@ public class QMUITabBuilder {
         return this;
     }
 
+    public QMUITabBuilder setDescription(CharSequence description){
+        this.description = description;
+        return this;
+    }
+
     public QMUITab build(Context context) {
-        QMUITab tab = new QMUITab(this.text);
+        QMUITab tab = new QMUITab(text, description == null ? text : description);
         if(!skinChangeWithTintColor){
             if(!skinChangeNormalWithTintColor){
                 if(normalDrawableAttr != 0){

qmui/src/main/java/com/qmuiteam/qmui/widget/tab/QMUITabView.java

@@ -179,6 +179,7 @@ public class QMUITabView extends FrameLayout implements IQMUISkinHandlerView {
         }
         updateSkinInfo(tab);
         requestLayout();
+        setContentDescription(tab.getDescription());
     }