增加根据后台返回的指示语改变界面显示的指令

app/src/main/java/com/bgycc/smartcanteen/activity/MainActivity.java

@@ -15,6 +15,7 @@ import android.content.Context;
 import android.content.pm.PackageInfo;
 import android.content.pm.PackageManager;
 import android.media.AudioManager;
+import android.os.Process;
 import android.os.Bundle;
 import android.os.Handler;
 import android.text.TextUtils;
@@ -34,6 +35,7 @@ import com.bgycc.smartcanteen.Injection;
 import com.bgycc.smartcanteen.R;
 import com.bgycc.smartcanteen.command.CommandHelper;
 import com.bgycc.smartcanteen.entity.Command;
+import com.bgycc.smartcanteen.entity.CommandNotice;
 import com.bgycc.smartcanteen.entity.PayData;
 import com.bgycc.smartcanteen.executor.SCTaskExecutor;
 import com.bgycc.smartcanteen.socket.SCWebSocketClient;
@@ -51,6 +53,7 @@ import com.bgycc.smartcanteen.viewModel.PayOnlineViewModel;
 import com.bgycc.smartcanteen.viewModel.QRCodeViewModel;
 import com.bgycc.smartcanteen.viewModel.ViewModelFactory;
 import com.blankj.utilcode.util.LogUtils;
+import com.google.gson.Gson;
 
 import java.net.URI;
 import java.net.URISyntaxException;
@@ -58,6 +61,7 @@ import java.text.SimpleDateFormat;
 import java.util.Date;
 import java.util.Locale;
 
+import static android.os.Process.myPid;
 import static com.bgycc.smartcanteen.utils.SmartCanteenUtils.TAG;
 
 @SuppressWarnings("all")
@@ -86,6 +90,7 @@ public class MainActivity extends AppCompatActivity implements View.OnClickListe
     private TextView message;
     private AudioManager audioManager;
 
+    private String idle_notice;
     private WorkManager workManager;
     private Handler handler = new Handler();
     private SimpleDateFormat payDateFormat = new SimpleDateFormat("HH:mm:ss.SSS", Locale.getDefault());
@@ -138,7 +143,7 @@ public class MainActivity extends AppCompatActivity implements View.OnClickListe
             switch (event.getState()) {
                 case PayOnlineState.IDLE:
                     message.setTextColor(getResources().getColor(R.color.qrcode_normal));
-                    message.setText(R.string.pay_idle);
+                    message.setText(idle_notice);
                     break;
                 case PayOnlineState.SEND:
                     message.setTextColor(getResources().getColor(R.color.pay_idle));
@@ -182,7 +187,7 @@ public class MainActivity extends AppCompatActivity implements View.OnClickListe
             switch (event.getState()) {
                 case QRCodeState.IDLE:
                     message.setTextColor(getResources().getColor(R.color.qrcode_normal));
-                    message.setText(R.string.pay_idle);
+                    message.setText(idle_notice);
                     break;
                 case QRCodeState.SCANNING:
                     message.setTextColor(getResources().getColor(R.color.qrcode_normal));
@@ -243,6 +248,16 @@ public class MainActivity extends AppCompatActivity implements View.OnClickListe
                     commandViewModel.commandFinish(command);
                     return;
                 }
+                if (CommandHelper.changedPaymentNotice(command)) {
+                    Gson gson = Injection.provideGson();
+                    try {
+                        CommandNotice commandNotice = gson.fromJson(command.getData(), CommandNotice.class);
+                        idle_notice = commandNotice.getData().getNotice();
+                    } finally {
+                        commandViewModel.commandFinish(command);
+                    }
+                    return;
+                }
                 // 检查当前是否有在执行的任务
                 if (runningCommand != null) {
                     // 若已经有在执行的任务，则跳过该次响应
@@ -401,7 +416,7 @@ public class MainActivity extends AppCompatActivity implements View.OnClickListe
         SCTaskExecutor.getInstance().quit();
         MonitorUtils.stopMonitors(this);
         LogUtils.d(TAG, "MainActivity onDestroy，退出应用");
-        android.os.Process.killProcess(android.os.Process.myPid());
+        Process.killProcess(myPid());
     }
 
     private void initViews() {
@@ -413,6 +428,10 @@ public class MainActivity extends AppCompatActivity implements View.OnClickListe
         settingText = findViewById(R.id._setting_msg);
         message = findViewById(R.id._message);
 
+        // 设置默认指示语
+        idle_notice = getString(R.string.default_message);
+        message.setText(idle_notice);
+
         settingLayout.setAlpha(0);
         settingImg.post(() -> {
             Animation anim = new RotateAnimation(0f, 360f, 0.5f * settingImg.getWidth(), 0.5f * settingImg.getHeight());

app/src/main/java/com/bgycc/smartcanteen/command/CommandHelper.java

@@ -18,6 +18,7 @@ public class CommandHelper {
     private static final String CONFIG_WIFI = "CONFIG_WIFI";
     private static final String CONFIG_LOG = "CONFIG_LOG";
     private static final String EXEC_SHELL = "EXEC_SHELL";
+    private static final String PAYMENT_CHANGED = "PAYMENT_CHANGED";
 
     // 设备指令白名单
     private static final Set<String> COMMAND_WHITELIST = new HashSet<String>() {
@@ -27,6 +28,7 @@ public class CommandHelper {
             add(CONFIG_WIFI);
             add(CONFIG_LOG);
             add(EXEC_SHELL);
+            add(PAYMENT_CHANGED);
         }
     };
 
@@ -38,6 +40,10 @@ public class CommandHelper {
         return command.getAction().equals(CONFIG_LOG);
     }
 
+    public static boolean changedPaymentNotice(Command command) {
+        return command.getAction().equals(PAYMENT_CHANGED);
+    }
+
     /**
      * 根据action检查是否为指令类型
      */

app/src/main/java/com/bgycc/smartcanteen/entity/CommandNotice.java

+package com.bgycc.smartcanteen.entity;
+
+import java.util.Objects;
+
+public class CommandNotice {
+    private String action;
+    private CommandNoticeData data;
+
+    public String getAction() {
+        return action;
+    }
+
+    public void setAction(String action) {
+        this.action = action;
+    }
+
+    public CommandNoticeData getData() {
+        return data;
+    }
+
+    public void setData(CommandNoticeData data) {
+        this.data = data;
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) return true;
+        if (o == null || getClass() != o.getClass()) return false;
+        CommandNotice that = (CommandNotice) o;
+        return Objects.equals(action, that.action) &&
+                Objects.equals(data, that.data);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(action, data);
+    }
+
+    @Override
+    public String toString() {
+        return "CommandNotice{" +
+                "action='" + action + '\'' +
+                ", data=" + data +
+                '}';
+    }
+
+    public static class CommandNoticeData {
+        private int payment;
+        private String notice;
+
+        public int getPayment() {
+            return payment;
+        }
+
+        public void setPayment(int payment) {
+            this.payment = payment;
+        }
+
+        public String getNotice() {
+            return notice;
+        }
+
+        public void setNotice(String notice) {
+            this.notice = notice;
+        }
+
+        @Override
+        public boolean equals(Object o) {
+            if (this == o) return true;
+            if (o == null || getClass() != o.getClass()) return false;
+            CommandNoticeData that = (CommandNoticeData) o;
+            return payment == that.payment &&
+                    Objects.equals(notice, that.notice);
+        }
+
+        @Override
+        public int hashCode() {
+            return Objects.hash(payment, notice);
+        }
+
+        @Override
+        public String toString() {
+            return "CommandNoticeData{" +
+                    "payment=" + payment +
+                    ", notice='" + notice + '\'' +
+                    '}';
+        }
+    }
+}

app/src/main/res/layout/activity_main.xml

@@ -36,7 +36,6 @@
 
     <TextView
         android:id="@+id/_message"
-        android:text="@string/default_message"
         android:textSize="70sp"
         android:textColor="#333"
         android:textAlignment="center"

app/src/main/res/values/strings.xml

@@ -12,16 +12,14 @@
     <string name="network_type_ethernet">以太网</string>
     <string name="network_type_wifi">Wifi</string>
     <string name="network_type_unknown">未知</string>
-    <string name="default_message">请出示付款码</string>
+    <string name="default_message">获取后台配置</string>
 
-    <string name="qrcode_failed">请出示付款码</string>
     <string name="qrcode_scanning">正在扫描…</string>
 
     <string name="beep">beep</string>
     <string name="scan_repeat">请勿重复扫码</string>
     <string name="invalidate_qrcode">无效二维码</string>
 
-    <string name="pay_idle">请出示付款码</string>
     <string name="pay_wait">交易处理中</string>
     <string name="pay_success">支付成功</string>
     <string name="pay_failed">支付失败</string>