Android禁止下拉状态栏

本文基于Android5.1

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frameworks/base/packages/SystemUI_usb/src/com/android/systemui/statusbar/phone/PhoneStatusBarView.java

selectPanelForTouch()方法入口

//修改去掉下拉通知栏  return null
@Override
public PanelView selectPanelForTouch(MotionEvent touch) {
   // No double swiping. If either panel is open, nothing else can be pulled down.
   /* return mNotificationPanel.getExpandedHeight() > 0
          ? null
          : mNotificationPanel;*/
    return null;		
}