RK3568系列4——Android系统语言时区等通用设置

发表于 2021-12-02 更新于 2025-10-08 分类于技术，嵌入式开发 Waline：阅读次数：本文字数： 7.6k 阅读时长 ≈ 19 分钟

　　该文是一些Android系统常用的配置，包括修改默认语言/国家信息/默认时区、修改默认NTP服务器、禁用锁屏、禁用自动休眠、禁用SELinux、root权限、固件预置App、固件预置输入法等。

默认语言/国家信息/默认时区

修改板级配置文件device/rockchip/rk356x/alpha/alpha.mk
Android 8没有国家信息选项，不需要配置persist.sys.country

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2
3

PRODUCT_LOCALES := zh_CN en_US
PRODUCT_PROPERTY_OVERRIDES += persist.sys.country=CN
PRODUCT_PROPERTY_OVERRIDES += persist.sys.timezone=Asia/Shanghai

修改默认NTP服务器

Android 8和Android 11相同

diff frameworks/base/core/res/res/values/config.xml
@@ -2037,5 +2037,5 @@
     <bool name="config_actionMenuItemAllCaps">true</bool>

     <!-- Remote server that can provide NTP responses. -->
-    <string translatable="false" name="config_ntpServer">2.android.pool.ntp.org</string>
+    <string translatable="false" name="config_ntpServer">ntp.aliyun.com</string>
     <!-- Normal polling frequency in milliseconds -->

禁用锁屏(进系统后直接进入桌面)

Android 8和Android 11相同

diff frameworks/base/packages/SettingsProvider/res/values/defaults.xml
@@ -82,5 +82,5 @@
     <integer name="def_max_sound_trigger_detection_service_ops_per_day" translatable="false">1000</integer>
     <integer name="def_sound_trigger_detection_service_op_timeout" translatable="false">15000</integer>

-    <bool name="def_lockscreen_disabled">false</bool>
+    <bool name="def_lockscreen_disabled">true</bool>
     <bool name="def_device_provisioned">false</bool>
     <integer name="def_dock_audio_media_enabled">1</integer>

禁用自动休眠

Android 8和Android 11相同

diff device/rockchip/rk356x/overlay/frameworks/base/packages/SettingsProvider/res/values/defaults.xml
@@ -18,5 +18,5 @@
 -->
 <resources>
-    <integer name="def_screen_off_timeout">60000</integer>
+    <integer name="def_screen_off_timeout">0x7fffffff</integer>
    <!-- Initial value for the Settings.Secure.IMMERSIVE_MODE_CONFIRMATIONS setting,
          which is a comma separated list of packages that no longer need confirmation

去掉电池图标

删除控制中心中的电池图标

diff frameworks/base/packages/SystemUI/res/values/config.xml
     <!-- The default tiles to display in QuickSettings -->
     <string name="quick_settings_tiles_default" translatable="false">
-        wifi,bt,dnd,flashlight,rotation,battery,cell,airplane,cast
+        wifi,bt,dnd,flashlight,rotation,cell,airplane,cast
     </string>

     <!-- Tiles native to System UI. Order should match "quick_settings_tiles_default" -->
     <string name="quick_settings_tiles_stock" translatable="false">
-        wifi,cell,battery,dnd,flashlight,rotation,bt,airplane,location,hotspot,inversion,saver,work,cast,night
+        wifi,cell,dnd,flashlight,rotation,bt,airplane,location,hotspot,inversion,saver,work,cast,night
     </string>

     <!-- The tiles to display in QuickSettings -->

删除状态栏中的电池图标

Android 8.1
Android 11

diff frameworks/base/packages/SystemUI/res/layout/system_icons.xml
         android:layout_marginStart="@dimen/signal_cluster_margin_start"/>

     <com.android.systemui.BatteryMeterView android:id="@+id/battery"
-        android:layout_height="match_parent"
-        android:layout_width="wrap_content"
+        android:layout_height="0dp"
+        android:layout_width="0dp"
         />
</LinearLayout>

diff frameworks/base/packages/SystemUI/res/layout/system_icons.xml
         android:orientation="horizontal"/>

     <com.android.systemui.BatteryMeterView android:id="@+id/battery"
+        android:visibility="gone"
         android:layout_height="match_parent"
         android:layout_width="wrap_content"
         android:clipToPadding="false"

diff frameworks/base/packages/SystemUI/res/values/config.xml
      -->
     <string-array name="config_statusBarIconBlackList" translatable="false">
         <item>@*android:string/status_bar_rotate</item>
+        <item>@*android:string/status_bar_battery</item>
     </string-array>

     <!-- A path similar to frameworks/base/core/res/res/values/config.xml

删除下拉通知菜单后的电池图标

Android 8.1
Android 11

diff frameworks/base/packages/SystemUI/res/layout/quick_status_bar_header_system_icons.xml
         android:singleLine="true" />

     <com.android.systemui.BatteryMeterView android:id="@+id/battery"
-        android:layout_height="match_parent"
-        android:layout_width="wrap_content"
+        android:layout_height="0dp"
+        android:layout_width="0dp"
         />

     <com.android.systemui.statusbar.policy.Clock

diff frameworks/base/packages/SystemUI/res/layout/quick_qs_status_icons.xmlquick_qs_status_icons.xml
         android:paddingEnd="@dimen/signal_cluster_battery_padding" />

     <com.android.systemui.BatteryMeterView
+        android:visibility="gone"
         android:id="@+id/batteryRemainingIcon"
         android:layout_height="match_parent"
         android:layout_width="wrap_content"

禁用SELinux

diff device/rockchip/common/BoardConfig.mk
@@ -60,5 +60,5 @@
 BOARD_PREBUILT_DTBOIMAGE ?= $(TARGET_DEVICE_DIR)/dtbo.img
 BOARD_ROCKCHIP_VIRTUAL_AB_ENABLE ?= false
-BOARD_SELINUX_ENFORCING ?= true
+BOARD_SELINUX_ENFORCING ?= false

 # Use the non-open-source parts, if they're present

# user固件下禁用SELinux
diff system/core/init/Android.bp
@@ -87,5 +87,5 @@
         "-DALLOW_FIRST_STAGE_CONSOLE=0",
         "-DALLOW_LOCAL_PROP_OVERRIDE=0",
-        "-DALLOW_PERMISSIVE_SELINUX=0",
+        "-DALLOW_PERMISSIVE_SELINUX=1",
         "-DREBOOT_BOOTLOADER_ON_PANIC=0",
         "-DWORLD_WRITABLE_KMSG=0",

为用户开启root权限

RKDocs/android/patches/root/android11_root.pdf

固件预置App

Android Studio生成未签名的APK文件：Build -> Build Bundle(s) / APK(s) -> Build APK(s)
在packages/apps/目录下新建目录AndroidTestTools(后文均以此名为例)
将生成的APK文件放于此目录下
在该目录下新建Android.mk文件

LOCAL_PATH := $(call my-dir)

include $(CLEAR_VARS)
LOCAL_MODULE_TAGS := optional
LOCAL_MODULE := AndroidTestTools
LOCAL_CERTIFICATE := platform
LOCAL_SRC_FILES := Android_Test_Tools.apk
LOCAL_MODULE_CLASS := APPS
LOCAL_MODULE_SUFFIX := $(COMMON_ANDROID_PACKAGE_SUFFIX)
include $(BUILD_PREBUILT)

编译时预置该APP(Android 10及以上必须要以这种方式)：

diff build/target/product/handheld_system_ext.mk

@@ -28,3 +28,4 @@ PRODUCT_PACKAGES += \
     StorageManager \
     SystemUI \
     WallpaperCropper \
+    AndroidTestTools \

固件预置输入法

按照固件预置App的步骤，预置输入法的APK包，这里给个参考模板：

LOCAL_PATH := $(call my-dir)

include $(CLEAR_VARS)
LOCAL_MODULE_TAGS := optional
LOCAL_MODULE := GooglePinyinInput
LOCAL_CERTIFICATE := PRESIGNED
LOCAL_SRC_FILES := Google_Pinyin_Input_v4.5.2.193126728-arm64-v8a.apk
LOCAL_MODULE_CLASS := APPS
LOCAL_MODULE_SUFFIX := $(COMMON_ANDROID_PACKAGE_SUFFIX)
include $(BUILD_PREBUILT)

增加默认输入法的配置

diff frameworks/base/packages/SettingsProvider/src/com/android/providers/settings/DatabaseHelper.java
@@ -2401,6 +2401,9 @@
             loadIntegerSetting(stmt, Settings.Secure.SLEEP_TIMEOUT,
                     R.integer.def_sleep_timeout);

+            loadStringSetting(stmt, Settings.Secure.DEFAULT_INPUT_METHOD, R.string.default_input_method);
+            loadStringSetting(stmt, Settings.Secure.ENABLED_INPUT_METHODS, R.string.enabled_input_methods);
+
             /*
              * IMPORTANT: Do not add any more upgrade steps here as the global,
              * secure, and system settings are no longer stored in a database

修改代码启动时载入配置

frameworks/base/packages/SettingsProvider/res/values/defaults.xml
@@ -246,4 +246,9 @@

     <!-- should show the screenshot button default -->
     <integer name="def_screenshot_button_show">0</integer>
+
+    <!-- settings default input method -->
+    <string name="default_input_method" translatable="false">com.google.android.inputmethod.pinyin/.PinyinIME</string>
+    <string name="enabled_input_methods" translatable="false">com.google.android.inputmethod.pinyin/.PinyinIME</string>
+
 </resources>