关机灭屏和震动同步问题

在alps/frameworks/base/services/core/java/com/android/server/pm/ShutdownThread.java
    // Shutdown Animation
    private static final int MIN_SHUTDOWN_ANIMATION_PLAY_TIME = 5*1000; // CU/CMCC operator require 3-5s
    private static long beginAnimationTime = 0;
    private static long endAnimationTime = 0;
    private static boolean bConfirmForAnimation = true;
    private static boolean bPlayaudio = true;

其中,MIN_SHUTDOWN_ANIMATION_PLAY_TIME 是运营商要求的关机时间;

这个函数的作用就是等待关机动画播放完毕后再关机,否则关机动画未播放完成就关机了给人体验不好;
delayForPlayAnimation() ;