Add content descriptions to toolbar and search menu icons

commons/src/main/kotlin/com/simplemobiletools/commons/activities/BaseSimpleActivity.kt

@@ -352,6 +352,7 @@ abstract class BaseSimpleActivity : AppCompatActivity() {
         if (toolbarNavigationIcon != NavigationIcon.None) {
             val drawableId = if (toolbarNavigationIcon == NavigationIcon.Cross) R.drawable.ic_cross_vector else R.drawable.ic_arrow_left_vector
             toolbar.navigationIcon = resources.getColoredDrawableWithColor(drawableId, contrastColor)
+            toolbar.setNavigationContentDescription(toolbarNavigationIcon.accessibilityResId)
         }
 
         toolbar.setNavigationOnClickListener {

commons/src/main/kotlin/com/simplemobiletools/commons/helpers/Constants.kt

@@ -7,6 +7,7 @@ import android.os.Looper
 import android.provider.ContactsContract
 import android.util.Log
 import androidx.annotation.ChecksSdkIntAtLeast
+import androidx.annotation.StringRes
 import com.simplemobiletools.commons.R
 import com.simplemobiletools.commons.extensions.normalizeString
 import com.simplemobiletools.commons.models.contacts.LocalContact
@@ -376,10 +377,10 @@ const val TIME_FORMAT_12 = "hh:mm a"
 const val TIME_FORMAT_24 = "HH:mm"
 
 // possible icons at the top left corner
-enum class NavigationIcon {
-    Cross,
-    Arrow,
-    None
+enum class NavigationIcon(@StringRes val accessibilityResId: Int) {
+    Cross(R.string.close),
+    Arrow(R.string.back),
+    None(0)
 }
 
 val appIconColorStrings = arrayListOf(

commons/src/main/res/layout/menu_search.xml

@@ -22,7 +22,8 @@
             android:layout_height="match_parent"
             android:layout_centerVertical="true"
             android:paddingStart="@dimen/activity_margin"
-            android:src="@drawable/ic_search_vector" />
+            android:src="@drawable/ic_search_vector"
+            android:contentDescription="@string/search" />
 
         <EditText
             android:id="@+id/top_toolbar_search"