diff --git a/app/src/main/java/com/gh/common/view/ExpandTextView.java b/app/src/main/java/com/gh/common/view/ExpandTextView.java
index 5219dd28cd..96bef80090 100644
--- a/app/src/main/java/com/gh/common/view/ExpandTextView.java
+++ b/app/src/main/java/com/gh/common/view/ExpandTextView.java
@@ -131,6 +131,10 @@ public class ExpandTextView extends AppCompatTextView {
         int startPosition = 0;
         startPosition = content.length() - finalEndText.length() - mExpandText.length();
         startPosition = Math.max(startPosition, 0);
+
+        // 避免越界
+        if (startPosition >= length) return;
+
         msp.replace(startPosition, length, finalEndText + mExpandText);
 
         msp.setSpan(new ClickableSpan() {