专栏名称: 阿群1986

2018-05-10 Android 4.4开发板设置“不休眠+不锁屏+默认中文”

阿群1986 · 简书 · · 2018-05-10 15:01

正文

Android 4.4 不休眠+不锁屏+默认中文+去除导航栏
(2015-06-24 18:27:11)转载

1、不休眠

frameworks/base/packages/SettingsProvider/res/values/defaults.xml
里面60000改成-1，就是不进入休眠。

这个文件还保存其他默认设置，如：
"def_location_providers_allowed" translatable="true">gps
"def_location_providers_allowed_network" translatable="true">network
"assisted_gps_enabled">true
"def_netstats_enabled">true
"def_bluetooth_on">true
"def_wifi_display_on">false
"def_install_non_market_apps">false
"def_package_verifier_enable">true
"def_dim_screen">false

但是这个方法只适合于4.2以前的版本，4.4的版本还要修改以下：
修改 frameworks/base/services/java/com/android/server/power/PowerManagerService.java 文件:
getScreenOffTimeoutLocked()函数:

if (mUserActivityTimeoutOverrideFromWindowManager >= 0) {
            timeout = (int)Math.min(timeout, mUserActivityTimeoutOverrideFromWindowManager);
        }
+        if(mScreenOffTimeoutSetting < 0)
+    return mMaximumScreenOffTimeoutFromDeviceAdmin;
        return Math.max(timeout, MINIMUM_SCREEN_OFF_TIMEOUT);

2、移除锁屏功能

frameworks/base/packages/Keyguard/src/com/android/keyguard/KeyguardViewMediator.java :

private boolean mExternallyEnabled = true

把mExternallyEnabled 改成false。但是这只是改了开机默认值，用户还是可用disableKeyguard/enableKeyGuard来启动。

为确保3rd app无法修改，

frameworks/base/packages/keyguard/src/com/android/keyguard/KeyguradViewMediator.java :

private void doKeyguardLocked(Bundle options) {
    ...
    if (DEBUG) Log.d(TAG, "doKeyguard: showing the lock screen");
+        // showLocked(options);
}

3、修改默认语言