Add API for obtaining max text length for accessibility

BUG: 16736956
Change-Id: I15ffb9bf68e074adf3e0dbcd230367e115c03e3c

1 files changed, 9 insertions, 0 deletions

diff --git a/core/java/android/widget/TextView.java b/core/java/android/widget/TextView.java
index b162e549bf2e..a536b2d3db6e 100644
--- a/core/java/android/widget/TextView.java
+++ b/core/java/android/widget/TextView.java
@@ -8392,6 +8392,15 @@ public class TextView extends View implements ViewTreeObserver.OnPreDrawListener
             }
         }
 
+        // Check for known input filter types.
+        final int numFilters = mFilters.length;
+        for (int i = 0; i < numFilters; i++) {
+            final InputFilter filter = mFilters[i];
+            if (filter instanceof InputFilter.LengthFilter) {
+                info.setMaxTextLength(((InputFilter.LengthFilter) filter).getMax());
+            }
+        }
+
         if (!isSingleLine()) {
             info.setMultiLine(true);
         }