Platform: Rockchip OS: Android 6.0 Kernel: 3.10.92
有些特殊场景需求需要屏蔽系统key, 比如home/back key，可以直接从input framework下手，改动如下：
kris@:~/rk3288/frameworks/native$ g df 07a894bb62e767f3409cf1434d69af69fc253485 b26fc08f30f44b68510c9281d1827f638bf12e20 diff --git a/services/inputflinger/EventHub.cpp b/services/inputflinger/EventHub.cpp index 8c4c882..b4afad2 100644 --- a/services/inputflinger/EventHub.cpp +++ b/services/inputflinger/EventHub.cpp @@ -846,6 +846,10 @@ size_t EventHub::getEvents(int timeoutMillis, RawEvent* buffer, size_t bufferSiz } else { int32_t deviceId = device->id == mBuiltInKeyboardId ? 0 : device->id; + /*Kris, 170830, Mask home/back key when app is running. {*/ + char property[PROPERTY_VALUE_MAX]; + /*Kris, 170830, Mask home/back key when app is running. }*/ + size_t count = size_t(readSize) / sizeof(struct input_event); for (size_t i = 0; i < count; i++) { struct input_event& iev = readBuffer[i]; @@ -854,6 +858,18 @@ size_t EventHub::getEvents(int timeoutMillis, RawEvent* buffer, size_t bufferSiz (int) iev.time.tv_sec, (int) iev.time.tv_usec, iev.type, iev.code, iev.value); + /*Kris, 170830, Mask home/back key when app is running. {*/ + if (iev.code == KEY_HOMEPAGE || iev.code == KEY_BACK) { + property_get("debug.app.running", property, "0"); + if (atoi(property)) { + mPendingEventIndex--; + continue; + } + } + /*Kris, 170830, Mask home/back key when app is running. }*/ + // Some input devices may have a better concept of the time // when an input event was actually generated than the kernel // which simply timestamps all events on entry to evdev.propetery根据场景在需要的地方设置，例如：
kris@:~/rk3288/frameworks/base$ g df 8dde2be234962d89f70c1806d4a6af9bf67caca5 1ab6cbee6c99bece23a4e8f4f2079481e6d87cd8 diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBar.java b/packages/SystemUI/src/com/android/syst index 827a2b2..c8d6e95 100755 --- a/packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBar.java +++ b/packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBar.java @@ -1347,9 +1347,11 @@ public class PhoneStatusBar extends BaseStatusBar implements DemoMode, public void displayNavigation(){ addNavigationBarInnerLocked(); + SystemProperties.set("debug.app.running","0"); } public void hideNavigation(){ removeNavigationBar(); + SystemProperties.set("debug.app.running","1"); }