Android键盘系统浅析（上）

通过往着几个文件中插桩，从模拟器的启动日志，我们可以更直观的开到整个Android键盘系统的建立：
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I/SystemServer(? ?57): Window Manager
I/WindowManager(? ?57): New the thread : mQueue = new Key
I/KeyInputQueue(? ?57): Enter into the constraction of the Base Class KeyInputQueue
I/KeyInputQueue(? ?57): Start the mThread???????????????????
I/WindowManager(? ?57): After mQueue = new Key
I/WindowManager(? ?57): New the thread of??mInputThread
I/WindowManager(? ?57): After??mInputThread
I/WindowManager(? ?57): New the thread of??mInputThread
I/WindowManager(? ?57): Begin the thread of??PolicyThread thr
I/KeyInputQueue(? ?57): Start the methods run of the mThread
I/KeyInputQueue(? ?57): Before the readEvent(ev),this is a native method
I/Input? ?(? ?57): C::::::::::::4::::::::::::::Entering into the JNI method-readEvent
I/EventHub(? ?57): C::::::::EventHub.cpp::::::::::Entering into the??EventHub::getEvent
I/EventHub(? ?57): C::::::::EventHub.cpp::::::::::Entering into the EventHub:penPlatformInput
I/EventHub(? ?57): C::::::::EventHub.cpp::::::::::Before scan_dir(device_path)
I/EventHub(? ?57): C::::::::EventHub.cpp::::::::::Entering into the??scan_dir(device_path)
I/EventHub(? ?57): C::::::::EventHub.cpp::::::::::Entering into the open_device(device_path)
I/EventHub(? ?57): Opening device: /dev/input/event0
I/EventHub(? ?57): Opened device: /dev/input/event0 (0 failures)
I/EventHub(? ?57): add device 1: /dev/input/event0
I/EventHub(? ?57):? ?bus:? ?? ?0000
I/EventHub(? ?57):? ?vendor? ? 0000
I/EventHub(? ?57):? ?product? ?0000
I/EventHub(? ?57):? ?version? ?0000
I/EventHub(? ?57):? ?name:? ???"qwerty2"
I/EventHub(? ?57):? ?location: ""
I/EventHub(? ?57):? ?id:? ?? ? ""
I/EventHub(? ?57):? ?version:??1.0.0
I/EventHub(? ?57): New keyboard: publicID=65536 device->id=0x10000 devname='qwerty2' propName='hw.keyboards.65536.devname' keylayout='/system/usr/keylayout/qwerty.kl'
I/EventHub(? ?57): New device: path=/dev/input/event0 name=qwerty2 id=0x10000 (of 0x1) index=1 fd=49 classes=0x2f
I/EventHub(? ?57): C::::::::EventHub.cpp::::::::::Entering into the open_device(device_path)
I/EventHub(? ?57): Opening device: /dev/input/mouse0
I/EventHub(? ?57): Opened device: /dev/input/mouse0 (0 failures)
E/EventHub(? ?57): could not get driver version for /dev/input/mouse0, Not a typewriter
I/EventHub(? ?57): C::::::::EventHub.cpp::::::::::Entering into the open_device(device_path)
I/EventHub(? ?57): Opening device: /dev/input/mice
I/EventHub(? ?57): Opened device: /dev/input/mice (0 failures)
E/EventHub(? ?57): could not get driver version for /dev/input/mice, Not a typewriter
I/EventHub(? ?57): C::::::::EventHub.cpp:::::::::Enter into the while(1) ot the EventHub::getEvent
I/KeyInputQueue(? ?57): After the readEvent(ev)
I/KeyInputQueue(? ?57): Input event: dev=0x0 type=0x10000000 scancode=0 keycode=0 value=0
I/KeyInputQueue(? ?57): Device added: id=0x0, name=qwerty2, classes=2f
I/KeyInputQueue(? ?57):? ?X: unknown values
I/KeyInputQueue(? ?57):? ?Y: unknown values
I/KeyInputQueue(? ?57):? ?Pressure: unknown values
I/KeyInputQueue(? ?57):? ?Size: unknown values
I/KeyInputQueue(? ?57): No virtual keys found
I/KeyInputQueue(? ?57): Before the readEvent(ev),this is a native method
I/Input? ?(? ?57): C::::::::::::4::::::::::::::Entering into the JNI method-readEvent
I/EventHub(? ?57): C::::::::EventHub.cpp::::::::::Enter into the??EventHub::getEvent
I/EventHub(? ?57): C::::::::EventHub.cpp:::::::::Enter into the while(1) of the EventHub::getEvent