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需求

项目中未添加TP功能，需要用鼠标进行操作，将鼠标右键赋予返回功能。

解决

路径：frameworks/native/services/inputflinger/reader/mapper/accumulator/CursorButtonAccumulator.cpp

diff --git a/frameworks/native/services/inputflinger/reader/mapper/accumulator/CursorButtonAccumulator.cpp b/frameworks/native/services/inputflinger/reader/mapper/accumulator/CursorButtonAccumulator.cpp
index 2d7d73b..d6fdce5 100644 (file)
--- a/frameworks/native/services/inputflinger/reader/mapper/accumulator/CursorButtonAccumulator.cpp
+++ b/frameworks/native/services/inputflinger/reader/mapper/accumulator/CursorButtonAccumulator.cpp
@@ -84,7 +84,8 @@ uint32_t CursorButtonAccumulator::getButtonState() const {result |= AMOTION_EVENT_BUTTON_PRIMARY;}if (mBtnRight) {
-        result |= AMOTION_EVENT_BUTTON_SECONDARY;
+        //result |= AMOTION_EVENT_BUTTON_SECONDARY;
+               result |= AMOTION_EVENT_BUTTON_BACK;}if (mBtnMiddle) {result |= AMOTION_EVENT_BUTTON_TERTIARY;