01-Common_Android_System_Customizations

SDK - Refers to the source code path

console - Refers to the debugging console

ADB - Android Debug Bridge command-line tool. Hereinafter, it refers to an environment where ADB can be run.

1. Boot Logo Customization

The boot logo is divided into two parts: the Uboot stage and the Kernel stage.

The Uboot stage parses the image kernel-5.10/logo.bmp.

The Kernel stage parses the image kernel-5.10/logo_kernel.bmp.

(SDK)$ ls kernel-5.10/*.bmp
logo.bmp
logo_kernel.bmp

2. Boot Animation Customization

Place the boot animation you created in the specified directory.

(SDK)$ ls device/rockchip/common/bootshutdown/bootanimation.zip

Open the configuration.

(SDK)$ vim device\rockchip\common\BoardConfig.mk
-BOOT_SHUTDOWN_ANIMATION_RINGING ?= false
+BOOT_SHUTDOWN_ANIMATION_RINGING ?= true

3. Default Screen Orientation

Default Modification of Display Orientation

(SDK)$ vim device/rockchip/$(dev)/BoardConfig.mk
(SDK)$ vim device/rockchip/rk356x/BoardConfig.mk // K1

    SF_PRIMARY_DISPLAY_ORIENTATION := 0 	// 0°
    SF_PRIMARY_DISPLAY_ORIENTATION := 90 	// 90°
    SF_PRIMARY_DISPLAY_ORIENTATION := 180	// 180°
    SF_PRIMARY_DISPLAY_ORIENTATION := 270	// 270°

$(dev) is selected according to the motherboard CPU.

K1/K1B - rk356x

K3 - rk3562

K8 - rk3588

Modify Display Orientation via ADB

// 0°
(ADB)$ adb shell settings put system user_rotation 0

// 90°
(ADB)$ adb shell settings put system user_rotation 1

// 180°
(ADB)$ adb shell settings put system user_rotation 2

// 270°
(ADB)$ adb shell settings put system user_rotation 3

Modify Touch Orientation

You can refer to the LCD configuration document: Single Touch Screen Driver Configuration

4. Default Hide Status Bar

The latest firmware can be controlled by naming or sending broadcasts from an app.

Hide the navigation bar via the command line.

$ am broadcast -a android.intent.action.HIDE_STATUSBAR_BAR

Show the navigation bar via the command line.

$ am broadcast -a android.intent.action.SHOW_STATUSBAR_BAR

The APK for testing app broadcasts is located under the network drive:

rk356x_data\3-SoftwareData Software Materials\Navigation-Status-test\

To modify the default hiding of the status bar in Android 13:

--- a/frameworks/base/packages/SystemUI/src/com/android/systemui/statusbar/phone/CentralSurfacesImpl.java
+++ b/frameworks/base/packages/SystemUI/src/com/android/systemui/statusbar/phone/CentralSurfacesImpl.java
@@ -952,6 +952,8 @@ public class CentralSurfacesImpl implements CoreStartable, CentralSurfaces {
         mRegisterStatusBarResult = result;
 
         createAndAddWindows(result);
+        hideStatusBar();
 
         if (mWallpaperSupported) {
             // Make sure we always have the most current wallpaper info.

To modify the default prohibition of status bar pull-down in Android 13:

--- a/frameworks/base/packages/SystemUI/src/com/android/systemui/statusbar/CommandQueue.java
+++ b/frameworks/base/packages/SystemUI/src/com/android/systemui/statusbar/CommandQueue.java
@@ -536,10 +536,12 @@ public class CommandQueue extends IStatusBar.Stub implements
 
     // TODO(b/118592525): add multi-display support if needed.
     public boolean panelsEnabled() {
-        final int disabled1 = getDisabled1(mDisplayTracker.getDefaultDisplayId());
-        final int disabled2 = getDisabled2(mDisplayTracker.getDefaultDisplayId());
-        return (disabled1 & StatusBarManager.DISABLE_EXPAND) == 0
-                && (disabled2 & StatusBarManager.DISABLE2_NOTIFICATION_SHADE) == 0;
+        return false;
+        // final int disabled1 = getDisabled1(mDisplayTracker.getDefaultDisplayId());
+        // final int disabled2 = getDisabled2(mDisplayTracker.getDefaultDisplayId());
+        // return (disabled1 & StatusBarManager.DISABLE_EXPAND) == 0
+        //         && (disabled2 & StatusBarManager.DISABLE2_NOTIFICATION_SHADE) == 0;
+        
     }

5. Default Hide Navigation Bar

The latest firmware can be controlled by naming or sending broadcasts from an app.

Hide the navigation bar via the command line.

$ am broadcast -a android.intent.action.HIDE_NAVIGATION_BAR

Show the navigation bar via the command line.

$ am broadcast -a android.intent.action.SHOW_NAVIGATION_BAR

The APK for testing app broadcasts is located under the network drive:

rk356x_data\3-SoftwareData Software Materials\Navigation-Status-test\

To modify the default hiding of the navigation bar in Android 13:

--- a/frameworks/base/packages/SystemUI/src/com/android/systemui/statusbar/phone/CentralSurfacesImpl.java
+++ b/frameworks/base/packages/SystemUI/src/com/android/systemui/statusbar/phone/CentralSurfacesImpl.java
@@ -952,6 +952,8 @@ public class CentralSurfacesImpl implements CoreStartable, CentralSurfaces {
         mRegisterStatusBarResult = result;
 
         createAndAddWindows(result);
+        hideNavigation();
 
         if (mWallpaperSupported) {
             // Make sure we always have the most current wallpaper info.

To use gesture navigation by default in Android 13:

--- a/device/rockchip/rk356x/overlay/frameworks/base/core/res/res/values/config.xml
+++ b/device/rockchip/rk356x/overlay/frameworks/base/core/res/res/values/config.xml
@@ -61,7 +61,7 @@
          0: 3 button mode (back, home, overview buttons)
          1: 2 button mode (back, home buttons + swipe up for overview)
          2: gestures only for back, home and overview -->
-    <integer name="config_navBarInteractionMode">0</integer>
+    <integer name="config_navBarInteractionMode">2</integer>
     <bool name="config_swipe_up_gesture_setting_available">true</bool>
 </resources>

6. Embed Third-Party APPs

Refer to Settings2.apk.

Place your APK and Android.bp in rk-android13.0\vendor\rockchip\common\apps\Settings2.

Android.mk Method

###############################################################################
# Settings2
LOCAL_PATH := $(call my-dir)
include $(CLEAR_VARS)
LOCAL_MODULE := Settings2
LOCAL_MODULE_CLASS := APPS
LOCAL_MODULE_TAGS := optional
LOCAL_BUILT_MODULE_STEM := package.apk
LOCAL_MODULE_SUFFIX := $(COMMON_ANDROID_PACKAGE_SUFFIX)
#LOCAL_PRIVILEGED_MODULE :=
LOCAL_CERTIFICATE := PRESIGNED
#LOCAL_OVERRIDES_PACKAGES := 
LOCAL_SRC_FILES := $(LOCAL_MODULE).apk
#LOCAL_REQUIRED_MODULES :=
#LOCAL_PREBUILT_JNI_LIBS :=
include $(BUILD_PREBUILT)

Android.bp Method

android_app_import {
    name: "test",
    apk: "test.apk",

    //presigned: true,
    certificate: "platform",
    dex_preopt: {
        enabled: true,
    },

    privileged: true,
    //product_specific: true,
    //proprietary: true,
    enforce_uses_libs: false,
}

Add the compilation target to PRODUCT_PACKAGES.

(SDK)$ vim vendor/rockchip/common/apps/apps.mk
PRODUCT_PACKAGES += \
       Settings2

7. Start APP Automatically on Boot

Start the APP after Receiving the Boot Broadcast

1. Modify and add the APP's permissions and broadcast receiver in AndroidManifest.xml.

<uses-permission android:name="android.permission.START_ACTIVITIES_FROM_BACKGROUND" />
<uses-permission android:name="android.permission.USE_FULL_SCREEN_INTENT" />
<uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW" />
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />

<application>
        <receiver
            android:name=".MyReceiver"
            android:enabled="true"
            android:exported="true">
            <intent-filter android:priority="1000">
                <action android:name="android.intent.action.BOOT_COMPLETED"></action>
            </intent-filter>
        </receiver>
</application>

1. Add the broadcast receiver MyReceiver.java.

package com.example.myapplication;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.util.Log;

public class MyReceiver extends BroadcastReceiver {
    public MyReceiver() {
    }

    @Override
    public void onReceive(Context context, Intent intent) {
        if (intent.getAction().equals("android.intent.action.BOOT_COMPLETED")) {
            Intent i = new Intent(context, MainActivity.class);
            i.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
            context.startActivity(i);
            Log.i("kickpi", "onReceive: start app !!!");
        }
    }
}

1. Preinstall the app to /system/priv-app/.

• Method 1: Compile and preinstall into the source code. Refer to [Embed Third-Party APPs](# 6. Embed Third-Party APPs).

• Method 2: Preinstall via the push method.

adb root; adb remount;
adb push ./app /system/priv-app/

8. Default Language

$ vim build/target/product/full_base.mk
    PRODUCT_LOCALES := en_US

Option	Description
en_US	English
zh_CN	Chinese

9. Default Time Zone

[To be supplemented]

10. Default Never Sleep

$ vim device/rockchip/rk356x/overlay/frameworks/base/packages/SettingsProvider/res/values/defaults.xml
    <integer name="def_screen_off_timeout">2147483647</integer>

11. Default Disable Lock Screen

$ vim frameworks/base/packages/SettingsProvider/res/values/defaults.xml
    <bool name="def_lockscreen_disabled">true</bool>

12. Sign APK

Resign in the SDK Source Code

$ cd rk-android13.0/
$ java -Xmx2048m -Djava.library.path="out/host/linux-x86/lib64" \
-jar out/host/linux-x86/framework/signapk.jar  --disable-v2 \
-w build/target/product/security/platform.x509.pem \
build/target/product/security/platform.pk8 \
old.apk new.apk

Resign Using Signing-Related Files

The signing-related files required in the SDK:

out/host/linux-x86/lib64
out/host/linux-x86/framework/signapk.jar
build/target/product/security/platform.x509.pem
build/target/product/security/platform.pk8

Resign according to the provided files. Adjust the specific paths as needed.

Signing package rk-android13.0-key.tar.gz
$ tar -xvf rk-android13.0-key-20240919.tar.gz
$ ls rk-android13.0-key
$ java -Xmx2048m -Djava.library.path="rk-android13.0-key/lib64" \
-jar rk-android13.0-key/signapk.jar  --disable-v2 \
-w rk-android13.0-key/platform.x509.pem \
rk-android13.0-key/platform.pk8 \
old.apk new.apk

13. Network ADB

For network ADB, you need to start the 5555 port service via ADB first.

(ADB)$ adb tcpip 5555
(ADB)$ adb connect 192.168.77.170
connected to 192.168.77.170:5555
(ADB)$ adb devices
List of devices attached
7c001075a313c7c1c12     device
192.168.77.170:5555     device

(ADB)$ adb -s 192.168.77.170:5555 shell
apollo-p2:/ $ su

Start Port 5555 Automatically on Boot

You need to operate via USB ADB.

(ADB)$ adb root
(ADB)$ adb remount
(ADB)$ adb pull /system/build.prop .
(ADB)$ vim build.prop
+ service.adb.tcp.port=5555
(ADB)$ adb push .\build.prop /system/build.prop

14. HDMI RX APK Customization

The K8 has one HDMI RX input. Android can display the HDMI RX screen by opening the HdmiIn APK.

The path of the HdmiIn APK:

(SDK)$ packages/apps/rkCamera2/

Configure the HDMI in screen to be full-screen.

--- a/packages/apps/rkCamera2/src/com/android/rockchip/camera2/activity/MainActivity.java
+++ b/packages/apps/rkCamera2/src/com/android/rockchip/camera2/activity/MainActivity.java
@@ -207,7 +207,7 @@ public class MainActivity extends Activity implements
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_main);
 
+        fullScreen();
-        //fullScreen();
         rootView = (RelativeLayout) findViewById(R.id.root_view);
         rootView.setOnClickListener(this);

15. Modify Debug Port Baud Rate

Modify the Path

rk-android13.0\kernel-5.10\arch\arm64\boot\dts\rockchip\rk3568-android.dtsi

Modify the rockchip,baudrate Content

fiq-debugger {
        compatible = "rockchip,fiq-debugger";
        rockchip,serial-id = <2>;
        rockchip,wake-irq = <0>;
        /* If enable uart uses irq instead of fiq */
        rockchip,irq-mode-enable = <1>;
        rockchip,baudrate = <1500000>;  /* Only 115200 and 1500000 */
        interrupts = <GIC_SPI 252 IRQ_TYPE_LEVEL_LOW>;
        pinctrl-names = "default";
        pinctrl-0 = <&uart2m0_xfer>;
        status = "okay";
    };

Rockchip Official Documentation

Rockchip has stored official documentation in the code: RKDocs.

(SDK)$ tree -L 1 RKDocs/
RKDocs/
├── android
└── common