青萍空气检测仪改造记：用 AI 给它加个新页面

brew install android-platform-tools
adb devices
adb shell

/ # id
uid=0(root) gid=0(root)
/ # uname -a
Linux rockchip 3.10.104 #12 SMP PREEMPT Fri Dec 24 11:00:23 CST 2021 armv7l GNU/Linux
/ # grep Hardware /proc/cpuinfo
Hardware        : Rockchip RK3128

# 设备上
tar cf /tmp/data_backup.tar -C / data
md5sum /tmp/data_backup.tar
# Mac 上
adb pull /tmp/data_backup.tar ~/qingping_data_backup.tar
md5 ~/qingping_data_backup.tar

mkdir -p /data/custom
cat > /data/custom/env.sh <<'EOF'
mkdir -p /tmp/runtime-root && chmod 700 /tmp/runtime-root
export XDG_RUNTIME_DIR=/tmp/runtime-root
export QT_QPA_PLATFORM_PLUGIN_PATH=/usr/lib/qt/plugins
export QT_QPA_PLATFORM=eglfs
export QT_QPA_FONTDIR=/usr/lib/fonts
export QT_QPA_GENERIC_PLUGINS=evdevtouch:/dev/input/event0
export QT_QPA_EGLFS_WIDTH=720
export QT_QPA_EGLFS_HEIGHT=720
export QT_QPA_EGLFS_PHYSICAL_WIDTH=720
export QT_QPA_EGLFS_PHYSICAL_HEIGHT=720
export LD_LIBRARY_PATH=/data/lib/:/usr/lib/:$QT_QPA_PLATFORM_PLUGIN_PATH:$QT_QPA_FONTDIR
export QML_IMPORT_PATH=/data/lib/:/usr/qml/
export QML2_IMPORT_PATH=/data/lib/:/usr/qml/
EOF
cat > /data/custom/test.qml <<'EOF'
import QtQuick 2.9
Rectangle {
    width: 720; height: 720; color: "#101820"
    Text { anchors.centerIn: parent; color: "white"; font.pixelSize: 48; text: "Hello CGS1" }
    MouseArea { anchors.fill: parent; onClicked: Qt.quit() }
}
EOF
sync

. /data/custom/env.sh
qmlscene -platform EGLFS /data/custom/test.qml &

. /data/custom/env.sh
kill <看门狗进程号>
kill -9 <SnowApp 进程号>
qmlscene -platform EGLFS /data/custom/test.qml &

tar xf qingping_data_backup.tar data/bin/SnowApp

$ nm -C data/bin/SnowApp | grep qt_resource
002bea48 r qt_resource_struct
002c0060 r qt_resource_name
002c1ea8 r qt_resource_data
...（共 4 组）

qt_resource_struct（目录树，记录资源偏移量）
    MainPage.qml  → 偏移 0x1234
    其他页面.qml  → 偏移 0x1234 + 1781 + ...
    ...

qt_resource_data（数据区，首尾相接）
 ┌────────────┬──────────────────┬─────────────┐
 │ 前面的资源 │ MainPage.qml     │ 下一个资源  │
 │            │ 4 字节长度 + 1777│             │
 └────────────┴──────────────────┴─────────────┘

python3 qrc_dump.py data/bin/SnowApp out/

                model: ListModel {
                    id: model
                    ListElement {
                        name: "airDatasView"
                        source: "qrc:/Main/Views/AirDatas/AirDatasView2.qml"
                    }
                    ListElement {
                        name: "settingView"
                        source: "qrc:/Main/Views/Setting/SettingView.qml"
                    }
                    ListElement {
                        name: "airmxView"
                        source: "qrc:/Main/Views/AirMX/AirmxView.qml"
                    }
                    ListElement {
                        name: "appView"
                        source: "qrc:/Main/Views/App/AppView.qml"
                    }
                    Component.onCompleted: {
                        // 已绑定Eagle，则显示AIRMX界面
                        if (!appController.airmxApp.isPaired) {
                            removePage("airmxView");
                        }
                        if (!global.isShowAppView || (global.product === Global.PROD_HAIER)) {
                            removePage("appView");
                        }
                        // 时间已初始化，则显示汇总界面
                        if (datetimeManager.isInitialized) {
                            insertPage("airDatasView", "summaryView", "qrc:/Main/Views/Summary/SummaryView.qml");
                        }
                    }
                }

--- a/Main/MainPage.qml
+++ b/Main/MainPage.qml
@@ -34,7 +34,6 @@
                 onConfirmed: openPage("qrc:/Modules/SystemUpdate/SystemUpdatePage.qml")
             }
 
-            // 顶栏提示器
             HeaderBar {
                 id: headerBar
                 anchors.top: parent.top
@@ -43,7 +42,6 @@
                 height: 72
                 timeVisible: !control.isSummary && datetimeManager.isInitialized ? true : false
             }
-            // 页面指示器
             PageIndicator {
                 id: indicator
                 count: view.count
@@ -89,15 +87,17 @@
                         name: "appView"
                         source: "qrc:/Main/Views/App/AppView.qml"
                     }
+                    ListElement {
+                        name: "customView"
+                        source: "file:///data/custom/CustomView.qml"
+                    }
                     Component.onCompleted: {
-                        // 已绑定Eagle，则显示AIRMX界面
                         if (!appController.airmxApp.isPaired) {
                             removePage("airmxView");
                         }
                         if (!global.isShowAppView || (global.product === Global.PROD_HAIER)) {
                             removePage("appView");
                         }
-                        // 时间已初始化，则显示汇总界面
                         if (datetimeManager.isInitialized) {
                             insertPage("airDatasView", "summaryView", "qrc:/Main/Views/Summary/SummaryView.qml");
                         }
@@ -136,7 +136,6 @@
             }
         }
     }
-    // 加载子界面
     Component {
         id: childPage
         Loader {

python3 qrc_patch.py data/bin/SnowApp out/INDEX.tsv /Main/MainPage.qml MainPage.new.qml SnowApp.patched
# slot 1781 bytes, new payload 1641 bytes, spare 140

wpa_state=COMPLETED
已连接 Wi-Fi ssid=*** 无IP SSID无变化
killall: udhcpc: no process killed

sh /data/etc/wifi/udhcpc_wlan0 restart &

sh install_patched.sh

cp /data/custom/SnowApp.orig /data/bin/SnowApp.new && mv -f /data/bin/SnowApp.new /data/bin/SnowApp && reboot