How to Use APK Signature Files on Rockchip Android Boards

This article introduces the usage of APK signature files on the Rockchip Android system,Touch Intelligent EVB3588 Development Board demonstration, equipped with the Rockchip RK3588 chip, all kinds of interfaces are complete, helping enterprises improve product development efficiency, shorten time to market, reduce costs and design risks.

System Signature File

To generate APK system signature files, specific methods can refer to this article on how to generate APK signature files for RK3588 boards/development boards Android 12 system, packed with useful information.

How to Use APK Signature Files on Rockchip Android Boards

Usage Method

Step 1, modify the APK project file

<span>app/src/build.gradle</span>, and add the following content:

android {    namespace 'com.example.rk3562_android13'    compileSdk 33
    defaultConfig {        applicationId "com.example.rk3562_android13"        minSdk 33        targetSdk 33        versionCode 1        versionName "1.0"
        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"    }
    buildTypes {        release {            minifyEnabled false            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'        }    }
+    signingConfigs {+       release {+            storeFile file("../signature/rk3588.jks")+
                storePassword '123456'+                keyAlias 'rk3588'+                keyPassword '123456'+            }++        debug {+            storeFile file("../signature/rk3588.jks")+
                storePassword '123456'+                keyAlias 'rk3588'+                keyPassword '123456'+            }+    }
}

Code Explanation

storeFile file: Directory where the project signature file is placed;

storePassword/keyPassword: Password for the signature file;

keyAlias: Alias for the signature file;

Step 2, modify the APK project file

<span>app/src/main/res/AndroidManifest.xml</span>, and add the following content:

&lt;?xml version="1.0" encoding="utf-8"?&gt;&lt;manifest xmlns:android="http://schemas.android.com/apk/res/android"    package="com.example.rk3562_android13"+    android:sharedUserId="android.uid.system"&gt;

After modification, click 【File】->【Sync Project with Gradle Files】 to resynchronize the source code compilation.

Verification

Test APK package name: com.imx.bookcase, before compiling and testing, execute the following command to view the application status in real-time:

rk3588_t: # top -d 1 | grep com.imx.bookcase2568 u0_a81       10 -10  14G 166M 103M S  0.0   2.0   0:00.31 com.imx.bookcase

The result shows that the current application is a “u0_a81” user-level application.

After compiling and testing:

rk3588_t: # top -d 1 | grep com.imx.bookcase2767 system       10 -10  14G 166M 103M S  0.0   2.1   0:00.29 com.imx.bookcase

The result shows that the APK has successfully become a “system” level application.

Product Introduction

Touch Intelligent EVB3588 Development Board has the following advantages:

Supports open-source HarmonyOS OpenHarmony and QilinKylin

OS domestic systems, as well as Android/Linux;
Rockchip RK3588 high-performance SoC, integrated with four-core A76

and four-core A55 processors, Mali-G610 four-core GPU;
Supports 48M ISP, multi-camera input;
6T AI high computing power NPU, three-core architecture;
Supports HDMI2.1 output, up to 8K@60FPS;
Supports HDMI2.0 input, up to 4K@60FPS;
2× independent Gigabit Ethernet ports, supports WAN+LAN

Dual IP, supports 5G/4G/WiFi/Bluetooth wireless communication;
Onboard4× USB3.0, 2× fully functional Type-C

Taobao Purchase Link:https://item.taobao.com/item.htm?ft=t&id=729226307120

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