Android4.0鼠標右鍵返回功能

Android4.0鼠標右鍵返回功能。

在\frameworks\base\services\input\InputReader.cpp文件下修改

1. uint32_t CursorButtonAccumulator::getButtonState() const {
   
2.     uint32_t result = 0;
   
3.     if (mBtnLeft) {
   
4.         result |= AMOTION_EVENT_BUTTON_PRIMARY;
   
5.     }
   
6.     if (mBtnRight) {
   
7.         result |= AMOTION_EVENT_BUTTON_BACK;
   
8.     }
   
9.     if (mBtnMiddle) {
   
10.         result |= AMOTION_EVENT_BUTTON_TERTIARY;
    
11.     }
    
12.     if (mBtnBack || mBtnSide) {
    
13.         result |= AMOTION_EVENT_BUTTON_BACK;
    
14.     }
    
15.     if (mBtnForward || mBtnExtra) {
    
16.         result |= AMOTION_EVENT_BUTTON_FORWARD;
    
17.     }
    
18.     return result;