input reader对virtual key的处理

inputreader中对virtualkey的处理


在void TouchInputMapper::sync(nsecs_t when) 中有个
 if (consumeRawTouches(when, policyFlags)) {
            mCurrentRawPointerData.clear();
        }
继续看bool TouchInputMapper::consumeRawTouches(nsecs_t when, uint32_t policyFlags) 
里面有
1.dispatchVirtualKey(when, policyFlags,
                    AKEY_EVENT_ACTION_UP,
                    AKEY_EVENT_FLAG_FROM_SYSTEM | AKEY_EVENT_FLAG_VIRTUAL_HARD_KEY
                            | AKEY_EVENT_FLAG_CANCELED);
        }


2.dispatchVirtualKey(when, policyFlags,
                    AKEY_EVENT_ACTION_UP,
                    AKEY_EVENT_FLAG_FROM_SYSTEM | AKEY_EVENT_FLAG_VIRTUAL_HARD_KEY
                            | AKEY_EVENT_FLAG_CANCELED);
        }
3. dispatchVirtualKey(when, policyFlags,
                                AKEY_EVENT_ACTION_DOWN,
                                AKEY_EVENT_FLAG_FROM_SYSTEM | AKEY_EVENT_FLAG_VIRTUAL_HARD_KEY);


看看void TouchInputMapper::dispatchVirtualKey(nsecs_t when, uint32_t policyFlags,
        int32_t keyEventAction, int32_t keyEventFlags) {
    int32_t keyCode = mCurrentVirtualKey.keyCode;
    int32_t scanCode = mCurrentVirtualKey.scanCode;
    nsecs_t downTime = mCurrentVirtualKey.downTime;
    int32_t metaState = mContext->getGlobalMetaState();
    policyFlags |= POLICY_FLAG_VIRTUAL;


    NotifyKeyArgs args(when, getDeviceId(), AINPUT_SOURCE_KEYBOARD, policyFlags,
            keyEventAction, keyEventFlags, keyCode, scanCode, metaState, downTime);
    getListener()->notifyKey(&args);
}
最后还是用了 getListener()->notifyKey(&args)发送出去了，和void QueuedInputListener::flush()做的一样