From 62ff108c6fe152664db4d5de75368ff81a4bd41c Mon Sep 17 00:00:00 2001
From: niulihua <niulihua3@huawei.com>
Date: Fri, 12 Mar 2021 00:30:45 -0800
Subject: [PATCH] fix param check

Change-Id: I849433d02ee3c13f5939f657d4a681e1d13d4a20
---
 frameworks/common/typed_text.cpp | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/frameworks/common/typed_text.cpp b/frameworks/common/typed_text.cpp
index 63e3780..5bbb523 100755
--- a/frameworks/common/typed_text.cpp
+++ b/frameworks/common/typed_text.cpp
@@ -246,6 +246,9 @@ int16_t TypedText::GetTextWidth(const char* text, uint16_t length, int16_t lette
 
 uint8_t TypedText::GetUTF8OneCharacterSize(const char* str)
 {
+    if (str == nullptr) {
+        return 0;
+    }
     if ((str[0] & 0x80) == 0) {
         return 1;
     } else if ((str[0] & 0xE0) == 0xC0) {
@@ -381,4 +384,4 @@ uint32_t TypedText::GetUtf16Cnt(const char* utf8Str)
     }
     return len;
 }
-} // namespace OHOS
\ No newline at end of file
+} // namespace OHOS
-- 
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