¡¾Android N 7.1.1¡¿ ÆÁÄ»ÁÁºÍÃðµÄ´¦ÀíµØ·½

frameworks/base/services/core/java/com/android/server/display/DisplayPowerController.java

private void updatePowerState() {
if (true) { //°´power°´¼ü，ÆÁÄ»²»»áÃðÁË
return;
}

....

¡¡}

private void blockScreenOn() {
if (mPendingScreenOnUnblocker == null) {
Trace.asyncTraceBegin(Trace.TRACE_TAG_POWER, SCREEN_ON_BLOCKED_TRACE_NAME, 0);
mPendingScreenOnUnblocker = new ScreenOnUnblocker();
mScreenOnBlockStartRealTime = SystemClock.elapsedRealtime();
Slog.i(TAG, "Blocking screen on until initial contents have been drawn.");
}
}

private void unblockScreenOn() {
if (mPendingScreenOnUnblocker != null) {
mPendingScreenOnUnblocker = null;
long delay = SystemClock.elapsedRealtime() - mScreenOnBlockStartRealTime;
Slog.i(TAG, "Unblocked screen on after " + delay + " ms");
Trace.asyncTraceEnd(Trace.TRACE_TAG_POWER, SCREEN_ON_BLOCKED_TRACE_NAME, 0);
}
}

תÔØÓÚ:https://www.cnblogs.com/onelikeone/p/7053456.html