JB에서부터는 아래 코드를 적용해서 default가 none으로 설정되지 않습니다.
def_lockscreen_disabled 값을 true로 주시면 코드 수정없이 됩니다.
overlay/frameworks/base/packages/SettingsProvider/res/values/defaults.xml
<?xml version="1.0" encoding="utf-8"?>
<!--
/**
* Copyright (c) 2009, The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
-->
<resources>
<bool name="def_accelerometer_rotation">false</bool>
<bool name="def_lockscreen_disabled">true</bool>
<integer name="def_screen_off_timeout">604800000</integer>
<bool name="def_install_non_market_apps">true</bool>
</resources>
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http://codewalkerster.blogspot.com/2011/11/android-lockscreen.html
gingerbread에서는 Screen lock을 PhoneWindowManager.java를 직접 수정하여 없앨 수 있었습니다.
ICS 부터는 아래와 같이 Screen lock - None이란 항목이 있습니다.
그런데 첫 부팅 후 default가 None으로 설정하려고 합니다.
framework/base/core/java/com/android/internal/widget/LockPatternUtils.java
public boolean isLockScreenDisabled() {
return !isSecure() && getLong(DISABLE_LOCKSCREEN_KEY, 1) != 0;
//return !isSecure() && getLong(DISABLE_LOCKSCREEN_KEY, 0) != 0;
}
public int getKeyguardStoredPasswordQuality() {
int quality =
(int) getLong(PASSWORD_TYPE_KEY, DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED);
//(int) getLong(PASSWORD_TYPE_KEY, DevicePolicyManager.PASSWORD_QUALITY_SOMETHING);
// If the user has chosen to use weak biometric sensor, then return the backup locking
// method and treat biometric as a special case.
if (quality == DevicePolicyManager.PASSWORD_QUALITY_BIOMETRIC_WEAK) {
quality =
(int) getLong(PASSWORD_TYPE_ALTERNATE_KEY,
DevicePolicyManager.PASSWORD_QUALITY_SOMETHING);
}
return quality;
}
