基于迅为RK3568开发板全国产平台，快速实现APP开机自启动技术分享

 

应用场景：

在一些场景中需要系统启动以后就让应用程序运行起来，如闸机打卡系统，智能点餐系统，广告机系统等等。这个需求叫做自启动。

 

 

 

除全国产版本核心板以外，RK3568核心板还有工业级，商业级，连接器和邮票孔多种版本。全国产版本核心板与其他版本核心板完全兼容。可以支持国产和非国产核心板的无缝切换，助力产品升级和国产化项目落地。

 

 

RK3568 Android11实现APP自启动技术分享

平台：迅为iTOP-3568开发板

■　第一步：添加自启服务

修改RK3568 Android11源码frameworks\base\core\java\com\android\internal\app\ResolverActivity.java文件，添加如下蓝色字体的代码。

 

 import java.util.Objects;

  import java.util.Set;

import java.util.concurrent.Executor;

import java.util.function.Consumer;

import android.os.SystemProperties;

import android.app.role.RoleManager;

 

 /**

  * This activity is displayed when the system attempts to start an Intent for

@@ -341,6 +345,18 @@ public class ResolverActivity extends Activity implements

     protected void onCreate(Bundle savedInstanceState, Intent intent,

             CharSequence title, int defaultTitleRes, Intent[] initialIntents,

             List rList, boolean supportsAlwaysUseOption) {

 

             String LauncherPkg = SystemProperties.get("persist.sys.def_launherpag");

       

 if(LauncherPkg!=null/* && !isDefaultLauncher(this,LauncherPkg)*/){

            Log.v("defaultLauncher","-----found default launcher pkg:"+LauncherPkg);

            setDefaltLauncher(this,LauncherPkg);

          startDefaultLauncher(this,LauncherPkg);

            finish();

            return;

        }

         setTheme(appliedThemeResId());

         super.onCreate(savedInstanceState);

 

@@ -433,6 +449,47 @@ public class ResolverActivity extends Activity implements

                 intent.getAction() + ":" + intent.getType() + ":"

                         + (categories != null ? Arrays.toString(categories.toArray()) : ""));

     }

 

 

       public void setDefaltLauncher(Context context, String packageName) {

        String roleName = "android.app.role.HOME";

        boolean add = true;

        int flags = 0;

      UserHandle user = android.os.Process.myUserHandle();

 

        RoleManager roleManager = context.getSystemService(RoleManager.class);

        Executor executor = context.getMainExecutor();

        Consumer< Boolean > callback = successful -> {

            if (successful) {

                Log.v("defaultLauncher","set Defalt Launcher successful" );

            } else {

                Log.v("defaultLauncher","set Defalt Launcher failed ");

            }

        };

        roleManager.addRoleHolderAsUser(roleName, packageName, flags, user, executor, callback);

    }

 

    public void startDefaultLauncher(Context context, String packageName) {

       Intent intent = new Intent();

        PackageManager pm = context.getPackageManager();

        intent = pm.getLaunchIntentForPackage(packageName);

        if (intent != null)

            intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);

        try {

            context.startActivity(intent);

        } catch (Exception e) {

            Log.v("defaultLauncher","start Default Launcher failed,not find package:"+packageName );

        }

    }

 

       public boolean isDefaultLauncher(Context context,String launcherPkg){

        Intent intent = new Intent(Intent.ACTION_MAIN);

        intent.addCategory(Intent.CATEGORY_HOME);

        ResolveInfo resolveInfo = context.getPackageManager().resolveActivity(intent, PackageManager.MATCH_DEFAULT_ONLY);

        String currentHomePackage = resolveInfo.activityInfo.packageName;

        Log.v("defaultLauncher","-currentHomePackage:"+currentHomePackage);

        return launcherPkg.equals(currentHomePackage);

    }

 

     private boolean isIntentPicker() {

         return getClass().equals(ResolverActivity.class);

■　第二步：添加APP

接下来将需要自启动的APP放到device/rockchip/rk356x/rk3568_r/preinstall_del/目录下，如果没有preinstall_del目录的话需要手动新建一个preinstall_del目录即可，然后添加以下文件Android.mk，xxx.apk（APP），preinstall.mk这三个文件。

Android.mk文件内容如下所示：

include $(call all-subdir-makefiles)

preinstall.mk文件内容：

PRODUCT_PACKAGES += xxx

xxx为APP名字，例如demo.apk。这份目录不仅是APK的预装指定位置，当您希望新增APK进行预装时，可将该APK文件复制至“preinstall_del/”目录下，并随后将APK的名称增补至“preinstall.mk”配置文件中，以完成预安装的准备工作。这样的操作确保了APK能够按照预期被系统识别并预装至目标设备中。

■　第三步：添加APP包名

修改RK3568Android11源码文件device/rockchip/rk356x/rk3568_r/rk3568_r.mk,例如包名为：com.example.demo，在rk3568_r.mk中下面蓝色字体代码。

 

 PRODUCT_PROPERTY_OVERRIDES += persist.sys.timezone=Asia/Shanghai

 PRODUCT_PROPERTY_OVERRIDES += ro.vendor.hdmirotationlock=true

 #PRODUCT_PROPERTY_OVERRIDES += vendor.hwc.device.primary=HDMI-A-1

PRODUCT_PROPERTY_OVERRIDES += vendor.hwc.device.primary=DSI

PRODUCT_PROPERTY_OVERRIDES += persist.sys.def_launherpag=com.example.demo

修改完毕之后，保存修改的文件，重新编译Android源码，然后烧写Android镜像进行测试。

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