修改点：
android/frameworks/base/packages/SettingsProvider/res/values/defaults.xml
- <integer name="def_screen_off_timeout">604800000</integer>
+ <integer name="def_screen_off_timeout">0</integer>
android/frameworks/base/services/core/java/com/android/server/policy/PhoneWindowManager.java
private void updateLockScreenTimeout() {
synchronized (mScreenLockTimeout) {
boolean enable = (mAllowLockscreenWhenOn && mAwake &&
mKeyguardDelegate != null && mKeyguardDelegate.isSecure(mCurrentUserId));
if (mLockScreenTimerActive != enable) {
if (enable) {
if (localLOGV) Log.v(TAG, "setting lockscreen timer");
mHandler.removeCallbacks(mScreenLockTimeout); // remove any pending requests
if (mLockScreenTimeout != 0) {//time is 0 never sleep，not is 0 keep
mHandler.postDelayed(mScreenLockTimeout, mLockScreenTimeout);
}
} else {
if (localLOGV) Log.v(TAG, "clearing lockscreen timer");
mHandler.removeCallbacks(mScreenLockTimeout);
}
mLockScreenTimerActive = enable;
}
}
}
android/frameworks/base/services/core/java/com/android/server/power/PowerManagerService.java
private void updateUserActivitySummaryLocked(long now, int dirty) {
// Update the status of the user activity timeout timer.
if ((dirty & (DIRTY_WAKE_LOCKS | DIRTY_USER_ACTIVITY
| DIRTY_WAKEFULNESS | DIRTY_SETTINGS)) != 0) {
mHandler.removeMessages(MSG_USER_ACTIVITY_TIMEOUT);
long nextTimeout = 0;
if (mWakefulness == WAKEFULNESS_AWAKE
|| mWakefulness == WAKEFULNESS_DREAMING
|| mWakefulness == WAKEFULNESS_DOZING) {
final int sleepTimeout = getSleepTimeoutLocked();
final int screenOffTimeout = getScreenOffTimeoutLocked(sleepTimeout);
final int screenDimDuration = getScreenDimDurationLocked(screenOffTimeout);
final boolean userInactiveOverride = mUserInactiveOverrideFromWindowManager;
mUserActivitySummary = 0;
if (mLastUserActivityTime >= mLastWakeTime) {
nextTimeout = mLastUserActivityTime
+ screenOffTimeout - screenDimDuration;
if (now < nextTimeout) {
mUserActivitySummary = USER_ACTIVITY_SCREEN_BRIGHT;
} else {
nextTimeout = mLastUserActivityTime + screenOffTimeout;
if (now < nextTimeout) {
mUserActivitySummary = USER_ACTIVITY_SCREEN_DIM;
}
}
}
if (mUserActivitySummary == 0
&& mLastUserActivityTimeNoChangeLights >= mLastWakeTime) {
nextTimeout = mLastUserActivityTimeNoChangeLights + screenOffTimeout;
if (now < nextTimeout) {
if (mDisplayPowerRequest.policy == DisplayPowerRequest.POLICY_BRIGHT
|| mDisplayPowerRequest.policy == DisplayPowerRequest.POLICY_VR) {
mUserActivitySummary = USER_ACTIVITY_SCREEN_BRIGHT;
} else if (mDisplayPowerRequest.policy == DisplayPowerRequest.POLICY_DIM) {
mUserActivitySummary = USER_ACTIVITY_SCREEN_DIM;
}
}
}
if (mUserActivitySummary == 0) {
if (sleepTimeout >= 0) {
final long anyUserActivity = Math.max(mLastUserActivityTime,
mLastUserActivityTimeNoChangeLights);
if (anyUserActivity >= mLastWakeTime) {
nextTimeout = anyUserActivity + sleepTimeout;
if (now < nextTimeout) {
mUserActivitySummary = USER_ACTIVITY_SCREEN_DREAM;
}
}
} else {
mUserActivitySummary = USER_ACTIVITY_SCREEN_DREAM;
nextTimeout = -1;
}
}
if (mUserActivitySummary != USER_ACTIVITY_SCREEN_DREAM && userInactiveOverride) {
if ((mUserActivitySummary &
(USER_ACTIVITY_SCREEN_BRIGHT | USER_ACTIVITY_SCREEN_DIM)) != 0) {
// Device is being kept awake by recent user activity
if (nextTimeout >= now && mOverriddenTimeout == -1) {
// Save when the next timeout would have occurred
mOverriddenTimeout = nextTimeout;
}
}
mUserActivitySummary = USER_ACTIVITY_SCREEN_DREAM;
nextTimeout = -1;
}
if(mScreenOffTimeoutSetting != 0){//add never screen off
if (mUserActivitySummary != 0 && nextTimeout >= 0) {
Message msg = mHandler.obtainMessage(MSG_USER_ACTIVITY_TIMEOUT);
msg.setAsynchronous(true);
mHandler.sendMessageAtTime(msg, nextTimeout);
}
} else {
mUserActivitySummary |= USER_ACTIVITY_SCREEN_BRIGHT;
}
} else {
mUserActivitySummary = 0;
}
if (DEBUG_SPEW) {
Slog.d(TAG, "updateUserActivitySummaryLocked: mWakefulness="
+ PowerManagerInternal.wakefulnessToString(mWakefulness)
+ ", mUserActivitySummary=0x" + Integer.toHexString(mUserActivitySummary)
+ ", nextTimeout=" + TimeUtils.formatUptime(nextTimeout));
}
}
}
android/packages/apps/Settings/res/values-zh-rCN/arrays.xml
<item msgid="7489864775127957179">"5分钟"</item>
<item msgid="2314124409517439288">"10分钟"</item>
<item msgid="6864027152847611413">"30分钟"</item>
+ <item>"永不休眠"</item>
</string-array>
<string-array name="dream_timeout_entries">
<item msgid="3149294732238283185">"永不"</item>
android/packages/apps/Settings/res/values/arrays.xml
<item>5 minutes</item>
<item>10 minutes</item>
<item>30 minutes</item>
+ <item>never</item>
</string-array>
<!-- Do not translate. -->
<item>600000</item>
<!-- Do not translate. -->
<item>1800000</item>
+ <!-- Do not translate. -->
+ <item>0</item>
</string-array>
android/packages/apps/Settings/res/xml/display_settings.xml
android:title="@string/screen_timeout"
android:summary="@string/summary_placeholder"
android:entries="@array/screen_timeout_entries"
- android:entryValues="@array/screen_timeout_values" />
+ android:entryValues="@array/screen_timeout_values"
+ android:defaultValue="0"/>
