Android开发板设置APP开机自启和隐藏导航栏/状态栏方法 触觉智能出品

本文适用于触觉智能所有支持Android11系统的开发板设置APP开机自启和隐藏导航栏/状态栏。触觉智能的Purple Pi OH鸿蒙开源主板，是华为Laval官方社区主荐的一款鸿蒙开发主板。

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一、APP自启

1.1 添加自启服务
修改文件：
frameworks\base\core\java\com\android\internal\app\ResolverActivity.java

--- a/frameworks/base/core/java/com/android/internal/app/ResolverActivity.java
+++ b/frameworks/base/core/java/com/android/internal/app/ResolverActivity.java
@@ -101,6 +101,10 @@ import java.util.List;
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) {

•           //by Lyle,220923
  

•           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;
  

•    }
  

•           //end
  

•    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) {//by Lyle,220923
  

•    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.clas
  1.2 添加APP
  将需要自启的APP放置
  device/rockchip/rk356x/rk3566_r/preinstall_del/目录下
  （没有preinstall_del目录就手动创建一个即可），并添加以下文件：

1. Android.mk
2. xxx.apk（APP）
3. preinstall.mk
   Android.mk文件内容：

include $(call all-subdir-makefiles)
preinstall.mk文件内容：
PRODUCT_PACKAGES += neu
注意：

1. neu为APP名字，例如neu.apk。
2. 该目录也是APK的预安装目录，如果有新的APK要预安装，可把APK拷贝到preinstall_del/目录下，并且把APK名字添加到preinstall.mk文件即可。
   1.3 添加APP包名
   修改文件：
   device/rockchip/rk356x/rk3566_r/rk3566_r.mk
   例如包名为：
   com.mdptech.neuronappandroidhu
   --- a/device/rockchip/rk356x/rk3566_r/rk3566_r.mk
   +++ b/device/rockchip/rk356x/rk3566_r/rk3566_r.mk
   @@ -46,4 +46,5 @@ PRODUCT_PROPERTY_OVERRIDES += persist.bt.power.down=true
   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.mdptech.neuronappandroidhu
包名命令行方式查看：pm list package -3，修改后 make 编译源码即可。

二、修改导航栏/状态栏

2.1 导航栏
修改文件：
frameworks/base/packages/SystemUI/res/layout/navigation_bar.xml

--- a/frameworks/base/packages/SystemUI/res/layout/navigation_bar.xml
+++ b/frameworks/base/packages/SystemUI/res/layout/navigation_bar.xml
@@ -22,6 +22,7 @@
xmlns:systemui="http://schemas.android.com/apk/res-auto"
android:layout_height="match_parent"
android:layout_width="match_parent"

•   android:visibility="gone"
  

  android:background="@drawable/system_bar_background">
  <com.android.systemui.CornerHandleView
  @@ -42,6 +43,7 @@
  <com.android.systemui.statusbar.phone.NavigationBarInflaterView
  android:id="@+id/navigation_inflater"
  android:layout_width="match_parent"

•    android:layout_height="match_parent" />
  

•    android:layout_height="match_parent"
  

•           android:visibility="gone"/>
  

</com.android.systemui.statusbar.phone.NavigationBarView>

2.2 状态栏
修改文件：
frameworks/base/packages/SystemUI/res/layout/status_bar.xml

--- a/frameworks/base/packages/SystemUI/res/layout/status_bar.xml
+++ b/frameworks/base/packages/SystemUI/res/layout/status_bar.xml
@@ -26,6 +26,7 @@
android:id="@+id/status_bar"
android:orientation="vertical"
android:focusable="false"

• android:visibility="gone"
  android:descendantFocusability="afterDescendants"
  android:accessibilityPaneTitle="@string/status_bar"

修改后重新make编译即可。