android添加 DOUBLETAP键值

1.frameworks/base/data/keyboards/Generic.kl(键盘布局文件添加键值映射，这里的键值对应kernel里面的键值，按键名字对应上层keycodes.h里面定义的按键名字)

key 490 DOUBLETAP

2.frameworks/base/core/res/res/values/attrs.xml

<enum name="KEYCODE_DOUBLETAP" value="260" />

3.frameworks/native/include/android/keycodes.h

AKEYCODE_DOUBLETAP =260

4.frameworks/native/include/input/InputEventLabels.h

DEFINE_KEYCODE(DOUBLETAP)

5.frameworks/base/core/java/android/view/KeyEvent.java

public static final int KEYCODE_DOUBLETAP = 260; public static final boolean isSystemKey(int keyCode) { case KeyEvent.KEYCODE_DOUBLETAP: } public static final boolean isWakeKey(int keyCode) { case KeyEvent.KEYCODE_DOUBLETAP: }