21-Android12.0 system customization

TV desktop

Open the PRODUCT_PACKAGES corresponding to the tablet

--- a/vendor/aw/homlet/homlet.mk
+++ b/vendor/aw/homlet/homlet.mk
@@ -16,12 +16,12 @@ PRODUCT_PACKAGES += \
     DragonSN  \
     GalleryTV

-#PRODUCT_PACKAGES += \
+PRODUCT_PACKAGES += \
     TvLauncher \
     TvSettings

-PRODUCT_PACKAGES += \
       Launcher3 \
+#PRODUCT_PACKAGES += \
       Launcher3 \
        Settings \
        SystemUI

Tablet desktop

Open the PRODUCT_PACKAGES corresponding to the tablet

--- a/vendor/aw/homlet/homlet.mk
+++ b/vendor/aw/homlet/homlet.mk
@@ -16,12 +16,12 @@ PRODUCT_PACKAGES += \
     DragonSN  \
     GalleryTV

-PRODUCT_PACKAGES += \
+#PRODUCT_PACKAGES += \
     TvLauncher \
     TvSettings

-#PRODUCT_PACKAGES += \
-       Launcher3 \
+PRODUCT_PACKAGES += \
+       Launcher3 \
        Settings \
        SystemUI

APP and file compilation do not take effect

Android is a lazy compilation, which is directly replaced and then compiled. Some APPs and files may not be compiled into the mirror.

They can be solved in one of the following ways

1. make installclean

2. rm out/target/product/apollo-p2/xxx/xxx

3. The compilation conditions change (such as file name, APK name).

boot logo

logo alternate path

longan/device/config/chips/h618/boot-resource/boot-resource/bootlogo.bmp

boot animation

Support bootanimation.mp4 and bootanimation.zip two file formats

The two files exist at the same time to play mp4 with a higher priority than zip. For the specific priority, see frameworks/base/cmds/bootanimation/BootAnimation.cpp

Modify path

device/softwinner/apollo/common/media/config.mk

bootanimation.zip format

PRODUCT_COPY_FILES += \
     $(BOOTANIMATION_CONFIG_PATH)/bootanimation.zip:system/media/bootanimation.zip

bootanimation.mp4 format

PRODUCT_COPY_FILES += \
    $(BOOTANIMATION_CONFIG_PATH)/bootanimation.mp4:system/media/bootanimation.mp4

• The boot animation started for the first time after burning the mirror is native Android, and a restart is required to display the replacement boot animation.

default language

persist.sys.locale attribute

device/softwinner/apollo/apollo_p2.mk
	PRODUCT_PROPERTY_OVERRIDES += \
		persist.sys.locale=zh-CN

persist.sys.country And the persist.sys.language property

--- a/device/softwinner/apollo/apollo_p2.mk
+++ b/device/softwinner/apollo/apollo_p2.mk
@@ -32,8 +32,8 @@ PRODUCT_PACKAGES += FT618

 PRODUCT_SYSTEM_DEFAULT_PROPERTIES += \
     persist.sys.timezone=Asia/Shanghai \
-    persist.sys.country=US \
-    persist.sys.language=en
+    persist.sys.country=CN \
+    persist.sys.language=zh

PRODUCT_LOCALES configuration

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

options	describe
en_US	English
zh_CN	Chinese

locale Obtain priority. frameworks/base/core/jni/AndroidRuntime.cpp

/*
 * Read the persistent locale. Inspects the following system properties
 * (in order) and returns the first non-empty property in the list :
 *
 * (1) persist.sys.locale
 * (2) persist.sys.language/country/localevar (country and localevar are
 * inspected iff. language is non-empty.
 * (3) ro.product.locale
 * (4) ro.product.locale.language/region
 *
 * Note that we need to inspect persist.sys.language/country/localevar to
 * preserve language settings for devices that are upgrading from Lollipop
 * to M. The same goes for ro.product.locale.language/region as well.
 */
const std::string readLocale()
{
    const std::string locale = GetProperty("persist.sys.locale", "");
    if (!locale.empty()) {
        return locale;
    }

    const std::string language = GetProperty("persist.sys.language", "");
    if (!language.empty()) {
        const std::string country = GetProperty("persist.sys.country", "");
        const std::string variant = GetProperty("persist.sys.localevar", "");

        std::string out = language;
        if (!country.empty()) {
            out = out + "-" + country;
        }

        if (!variant.empty()) {
            out = out + "-" + variant;
        }

        return out;
    }

    const std::string productLocale = GetProperty("ro.product.locale", "");
    if (!productLocale.empty()) {
        return productLocale;
    }

    // If persist.sys.locale and ro.product.locale are missing,
    // construct a locale value from the individual locale components.
    const std::string productLanguage = GetProperty("ro.product.locale.language", "en");
    const std::string productRegion = GetProperty("ro.product.locale.region", "US");

    return productLanguage + "-" + productRegion;
}

Built-in third-party APP

Such as new test.apk

h618-android12.0\vendor\aw\public\prebuild\apk Put your apk and Android.bp

Android.mk way

LOCAL_PATH := $(call my-dir)
include $(CLEAR_VARS)
LOCAL_MODULE_TAGS := optional
LOCAL_MODULE_CLASS := APPS
LOCAL_MODULE_SUFFIX := $(COMMON_ANDROID_PACKAGE_SUFFIX)
LOCAL_CERTIFICATE := PRESIGNED

LOCAL_ENFORCE_USES_LIBRARIES := false
LOCAL_DEX_PREOPT := false

LOCAL_MODULE := test

LOCAL_SRC_FILES := $(LOCAL_MODULE).apk

include $(BUILD_PREBUILT)

Android.bp way

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,
}

/vendor/aw/homlet/homlet.mk add compilation

PRODUCT_PACKAGES += \
       test

Boot self-starting APP

Launcher mode

Replace the desktop in this way, return HOME as, and replace the APP.

To make the APP boot as a Launcher, you need to add two categories to AndroidManifest.xml.

<activity android:name=".MainActivity">
    <intent-filter>
		<category android:name="android.intent.category.HOME"/>
		<category android:name="android.intent.category.DEFAULT"/>
	</intent-filter>
</activity>

H618 As a Launcher, there will be APP problems due to permission restrictions. You need to add permissions.

There is no missing desktop attribute problem, you need to add the above two categories.

image-20241101094329876

Replace the native desktop when preset, you need to add an overlay attribute

Android.bp way

    overrides: [
        "Launcher2",
        "Launcher3",
        "Launcher3QuickStep",
        "Launcher3QuickStepGo",
    ],

Android.mk way

LOCAL_OVERRIDES_PACKAGES := Launcher2 Launcher3 Launcher3QuickStep Launcher3QuickStepGo

background call method

In this way, the APK can be called up by receiving the boot completion broadcast, and the original desktop can be returned.

After receiving the boot broadcast and completing it, start the APP.

1、Modify and increase the permissions of the APP and broadcast reception 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>

2、Add broadcast reception 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 !!!");
        }
    }
}

3、Pre-install the app to /system/priv-app/

• Method 1, compile and pre-install into the source code, refer to, and build-in third-party APP.

• Method 2, push method pre-installed

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

H618 is pre-installed into private-app. Due to permission restrictions, there will be APP problems. For adding permissions, please refer to the APP special permission problem.

4、Due to the relatively cumbersome permission issues, providing mirroring support wakes up the app under the /system/app/path

h618_android12_p2_uart0-bootup-test-20241022.img

• First confirm whether adb install can open apk normally

• Uninstall apk

• Install as system app through adb push

adb root; adb remount;
// adb push (Apk path to push) Path on main board
adb push ./app /system/priv-app/
adb reboot

• After booting, the APP is called in the background.

APK private-app push replacement

adb root; adb remount;  // Rooting can modify the read-only partition
adb push (The path to your APK) /system/priv-app/
adb reboot //restart, android will retrieve /system/priv-app/apk to install

APP signature file

The signature file path is as follows

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

APP special permission issue

At present, the desktop APP is a special application. If special permissions are added, there may be a problem that the system cannot get up. It is necessary to grab the APP-related log logs.

# logcat | grep com.example.myapplication3（package name of Androidapk）
09-14 10:36:06.662  3826  3826 W PackageManager: Privileged permission android.permission.INSTALL_PACKAGES for package com.example.myapplication3 (/system/priv-app/LauncherJingWei) not in privapp-permissions allowlist
09-14 10:36:08.437  3826  3826 W PackageManager: Privileged permission android.permission.INSTALL_PACKAGES for package com.example.myapplication3 (/system/priv-app/LauncherJingWei) not in privapp-permissions allowlist

Add permissions based on log information

SDK
	modify frameworks/base/data/etc/privapp-permissions-platform.xml
	recompile and burn

On the main board
	/etc/permissions/privapp-permissions-platform.xml

According to the log modification android.permission. INSTALL_PACKAGES content is as follows, other errors are similar to the following:

--- a/frameworks/base/data/etc/privapp-permissions-platform.xml
+++ b/frameworks/base/data/etc/privapp-permissions-platform.xml
@@ -550,4 +550,8 @@ applications that come with the platform
     <privapp-permissions package="com.android.calllogbackup">
         <permission name="com.android.voicemail.permission.READ_VOICEMAIL"/>
     </privapp-permissions>
+
+    <privapp-permissions package="com.example.myapplication3">
+        <permission name="android.permission.INSTALL_PACKAGES"/>
+    </privapp-permissions>

Full replacement does not take effect

Due to lazy compilation, some compilation targets or relying on direct replacement files will not be copied during compilation. They need to be manually cleared before compilation

source build/envsetup.sh
lunch apollo_p2-userdebug
make installclean -j32
./build.sh

HDMI fixed output resolution

HDMI TX

hdmi tx attribute node

# ls /sys/class/hdmi/hdmi/attr
avmute          dvi_mode   hdcp_enable  hpd_mask   phy_write  scdc_write
cec_dump        edid       hdcp_status  hpi_read   read       set_ddc
cec_enable      edid_test  hdcp_type    hpi_write  reg_dump   write
cec_simulation  esm_dump   hdmi_sink    phy_power  rxsense
debug           hdcp_dump  hdmi_source  phy_read   scdc_read

Network ADB

The network port ADB needs to start the 5555 port service first.

PS C:\Users\16708\Desktop> adb tcpip 5555
PS C:\Users\16708\Desktop> adb connect 192.168.77.170
connected to 192.168.77.170:5555
PS C:\Users\16708\Desktop> adb devices
List of devices attached
7c001075a313c7c1c12     device
192.168.77.170:5555     device

PS C:\Users\16708\Desktop> adb -s 192.168.77.170:5555 shell
apollo-p2:/ $ su

When powered on, port 5555 is started by default.

It needs to be operated via USB adb.

 adb root
 adb remount
 adb pull /system/build.prop
 //Add to build.prop
 //Add this line
 service.adb.tcp.port=5555
 //substitute entry
 adb push .\build.prop /system/build.prop