diff --git a/CHANGELOG.md b/CHANGELOG.md
index a6e6422..7d67d9e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,10 @@
 # Change Log
 ---
 
+### Version 1.4.5 (2016-04-21)
+
+- 修复页面是继承自`Activity`或`FragmentActivity`的情况下，由于计算键盘是否显示出现错误，导致存在闪动的bug。Closes #24 。
+
 ### Version 1.4.4 (2016-04-19)
 
 - 修复在一些特殊情况下如(一些继承自`FragmentActivity`的情况)有可能出现判定正在打开全屏布局的方案有误导致没有处理闪动的bug。Closes #21 。
diff --git a/README.md b/README.md
index 5504630..e2e43be 100644
--- a/README.md
+++ b/README.md
@@ -31,7 +31,7 @@
 在`build.gradle`中引入:
 
 ```
-compile 'cn.dreamtobe.kpswitch:library:1.4.4'
+compile 'cn.dreamtobe.kpswitch:library:1.4.5'
 ```
 
 
@@ -71,8 +71,8 @@ limitations under the License.
 [adjust_unresolved_gif]: https://raw.githubusercontent.com/Jacksgong/JKeybordPanelSwitch/master/art/adjust_unresolved.gif
 [build_status_svg]: https://travis-ci.org/Jacksgong/JKeyboardPanelSwitch.svg?branch=master
 [build_status_link]: https://travis-ci.org/Jacksgong/JKeyboardPanelSwitch
-[KeyboardUtil_calculateKeyboardHeight_link]: https://github.com/Jacksgong/JKeyboardPanelSwitch/blob/master/library/src/main/java/cn/dreamtobe/kpswitch/util/KeyboardUtil.java#L197
-[KeyboardUtil_calculateKeyboardShowing_link]: https://github.com/Jacksgong/JKeyboardPanelSwitch/blob/master/library/src/main/java/cn/dreamtobe/kpswitch/util/KeyboardUtil.java#L248
+[KeyboardUtil_calculateKeyboardHeight_link]: https://github.com/Jacksgong/JKeyboardPanelSwitch/blob/master/library/src/main/java/cn/dreamtobe/kpswitch/util/KeyboardUtil.java#L196
+[KeyboardUtil_calculateKeyboardShowing_link]: https://github.com/Jacksgong/JKeyboardPanelSwitch/blob/master/library/src/main/java/cn/dreamtobe/kpswitch/util/KeyboardUtil.java#L247
 [KPSwitchRootLayoutHandler_link]: https://github.com/Jacksgong/JKeyboardPanelSwitch/blob/master/library/src/main/java/cn/dreamtobe/kpswitch/handler/KPSwitchRootLayoutHandler.java
 [KPSwitchPanelLayoutHandler_link]: https://github.com/Jacksgong/JKeyboardPanelSwitch/blob/master/library/src/main/java/cn/dreamtobe/kpswitch/handler/KPSwitchPanelLayoutHandler.java
 [KPSwitchFSPanelLayoutHandler_link]: https://github.com/Jacksgong/JKeyboardPanelSwitch/blob/master/library/src/main/java/cn/dreamtobe/kpswitch/handler/KPSwitchFSPanelLayoutHandler.java
diff --git a/gradle.properties b/gradle.properties
index 90b1cdb..24478e1 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -1,5 +1,5 @@
-VERSION_NAME=1.4.4
-VERSION_CODE=11
+VERSION_NAME=1.4.5
+VERSION_CODE=12
 BUILD_TOOLS_VERSION=23.0.1
 COMPILE_SDK_VERSION=23
 
diff --git a/library/src/main/java/cn/dreamtobe/kpswitch/util/KeyboardUtil.java b/library/src/main/java/cn/dreamtobe/kpswitch/util/KeyboardUtil.java
index eab5a0e..a2cc171 100644
--- a/library/src/main/java/cn/dreamtobe/kpswitch/util/KeyboardUtil.java
+++ b/library/src/main/java/cn/dreamtobe/kpswitch/util/KeyboardUtil.java
@@ -252,7 +252,7 @@ private void calculateKeyboardShowing(final int displayHeight) {
             final View actionBarOverlayLayout = (View)contentView.getParent();
             // in the case of FragmentLayout, this is not real ActionBarOverlayLayout, it is
             // LinearLayout, and is a child of DecorView, and in this case, its top-padding would be
-            // equal to the height of status bar, and its height would equal to ScreenHeight -
+            // equal to the height of status bar, and its height would equal to DecorViewHeight -
             // NavigationBarHeight.
             final int actionBarOverlayLayoutHeight = actionBarOverlayLayout.getHeight() -
                     actionBarOverlayLayout.getPaddingTop();