ISSUE-319-Accessibility not working perfectly in Android 11 devices (#323)

* accessibility fix for android 11 version

* accessibility fix - issue 319

* reverting unused changes

* Update the `compileSdkVersion` for both lib and example (#324)

* Use API level 30 for Android SDK

* Update the compileSdkVersion for example app

* accessibility fix for android 11 version

* accessibility fix - issue 319

* reverting unused changes

* modified as per review comment

Author: srinu6

src/android/src/main/java/com/reactnativecommunity/slider/ReactSlider.java

@@ -111,7 +111,7 @@ public void onPopulateAccessibilityEvent(AccessibilityEvent event) {
     super.onPopulateAccessibilityEvent(event);
     if (event.getEventType() == AccessibilityEvent.TYPE_VIEW_ACCESSIBILITY_FOCUSED ||
         (event.getEventType() == AccessibilityEvent.TYPE_VIEW_SELECTED && this.isAccessibilityFocused())) {
-      this.setupAccessibility();
+      this.setupAccessibility((int) mValue);
     }
   }
 
@@ -139,9 +139,8 @@ public void run() {
     }
   }
 
-  private void setupAccessibility() {
+  public void setupAccessibility(int index) {
     if (mAccessibilityUnits != null && mAccessibilityIncrements != null && mAccessibilityIncrements.size() - 1 == (int)mMaxValue) {
-      int index = (int)mValue;
       String sliderValue = mAccessibilityIncrements.get(index);
       int stringLength = mAccessibilityUnits.length();
 

src/android/src/main/java/com/reactnativecommunity/slider/ReactSliderManager.java

@@ -149,6 +149,10 @@ public void setValue(ReactSlider view, double value) {
     view.setOnSeekBarChangeListener(null);
     view.setValue(value);
     view.setOnSeekBarChangeListener(ON_CHANGE_LISTENER);
+    if (view.isAccessibilityFocused() && Build.VERSION.SDK_INT >= Build.VERSION_CODES.R) {
+      int index = (int)value;
+      view.setupAccessibility(index);
+    }
   }
 
   @ReactProp(name = "minimumValue", defaultDouble = 0d)