去除首次进入沉浸模式气泡提示

首次进入沉浸模式会有一个如图的提示：

<string name="immersive_mode_confirmation" msgid="7227416894979047467">"从顶部向下滑动即可退出全屏模式。"</string>
1

源码位置：
布局：

frameworks/base/core/res/res/layout/immersive_mode_cling.xml

代码：

frameworks/base/policy/src/com/android/internal/policy/impl/ImmersiveModeConfirmation.java

屏蔽提示方法：

--- a/frameworks/base/policy/src/com/android/internal/policy/impl/ImmersiveModeConfirmation.java+++ b/frameworks/base/policy/src/com/android/internal/policy/impl/ImmersiveModeConfirmation.java@@ -333,13 +333,13 @@ public class ImmersiveModeConfirmation {         public void handleMessage(Message msg) {             switch(msg.what) {                 case SHOW:-                    handleShow();+                    // handleShow();                     break;                 case HIDE:                     handleHide();                     break;                 case PANIC:-                    handlePanic();+                    // handlePanic();                     break;             }         }