add displayMemoryInfo in face detect view

app/src/main/java/com/ouxuan/oxface/OXFaceOnlineActivity.java

@@ -1,5 +1,6 @@
 package com.ouxuan.oxface;
 
+import android.app.ActivityManager;
 import android.content.Context;
 import android.content.Intent;
 import android.content.pm.PackageManager;
@@ -142,6 +143,7 @@ public class OXFaceOnlineActivity extends BaseActivity implements View.OnClickLi
 
     // 底部按钮
     private Button btnOpenDoor;
+    private Button btnMemoryInfo; // 新增的内存信息按钮
 //    private Button btnScanQR;
 //    private Button btnSettings;
     
@@ -281,12 +283,16 @@ public class OXFaceOnlineActivity extends BaseActivity implements View.OnClickLi
 
         // 初始化底部按钮
         btnOpenDoor = findViewById(R.id.button_open_door);
+        btnMemoryInfo = findViewById(R.id.button_memory_info); // 初始化内存信息按钮
 //        btnScanQR = findViewById(R.id.button_scan_qr);
 //        btnSettings = findViewById(R.id.button_settings);
 
         if (btnOpenDoor != null) {
             btnOpenDoor.setOnClickListener(this);
         }
+        if (btnMemoryInfo != null) { // 设置内存信息按钮点击事件
+            btnMemoryInfo.setOnClickListener(this);
+        }
 //        if (btnScanQR != null) {
 //            btnScanQR.setOnClickListener(this);
 //        }
@@ -621,6 +627,9 @@ public class OXFaceOnlineActivity extends BaseActivity implements View.OnClickLi
         } else if (id == R.id.button_open_door) {
             // 开门按钮点击事件
             handleOpenDoorClick();
+        } else if (id == R.id.button_memory_info) {
+            // 内存信息按钮点击事件
+            displayMemoryInfo();
         }
 //        else if (id == R.id.button_scan_qr) {
 //            // 扫码按钮点击事件
@@ -1371,4 +1380,61 @@ public class OXFaceOnlineActivity extends BaseActivity implements View.OnClickLi
             }
         }, 2000);
     }
+
+    /**
+     * 查询并显示当前应用的内存信息
+     */
+    private void displayMemoryInfo() {
+        Runtime runtime = Runtime.getRuntime();
+        long maxMemory = runtime.maxMemory() / (1024 * 1024); // MB
+        long totalMemory = runtime.totalMemory() / (1024 * 1024); // MB
+        long freeMemory = runtime.freeMemory() / (1024 * 1024); // MB
+        long usedMemory = totalMemory - freeMemory; // MB
+        
+        // 获取系统内存信息（需要API 16及以上）
+        ActivityManager activityManager = (ActivityManager) getSystemService(Context.ACTIVITY_SERVICE);
+        ActivityManager.MemoryInfo memoryInfo = new ActivityManager.MemoryInfo();
+        activityManager.getMemoryInfo(memoryInfo);
+        
+        long totalMem = memoryInfo.totalMem / (1024 * 1024); // MB
+        long availMem = memoryInfo.availMem / (1024 * 1024); // MB
+        long threshold = memoryInfo.threshold / (1024 * 1024); // MB
+        boolean isLowMemory = memoryInfo.lowMemory;
+        
+        // 构建内存信息字符串
+        StringBuilder memoryInfoStr = new StringBuilder();
+        memoryInfoStr.append("应用内存信息:\n");
+        memoryInfoStr.append("最大可用内存: ").append(maxMemory).append(" MB\n");
+        memoryInfoStr.append("已分配内存: ").append(totalMemory).append(" MB\n");
+        memoryInfoStr.append("已使用内存: ").append(usedMemory).append(" MB\n");
+        memoryInfoStr.append("空闲内存: ").append(freeMemory).append(" MB\n\n");
+        
+        memoryInfoStr.append("系统内存信息:\n");
+        memoryInfoStr.append("总内存: ").append(totalMem).append(" MB\n");
+        memoryInfoStr.append("可用内存: ").append(availMem).append(" MB\n");
+        memoryInfoStr.append("内存阈值: ").append(threshold).append(" MB\n");
+        memoryInfoStr.append("低内存状态: ").append(isLowMemory ? "是" : "否");
+        
+        // 显示内存信息（可以通过Toast或者对话框显示）
+        Toast.makeText(this, memoryInfoStr.toString(), Toast.LENGTH_LONG).show();
+        
+        // 同时输出到日志
+        LogManager.logInfo(TAG, "内存信息:\n" + memoryInfoStr.toString());
+    }
+    
+    /**
+     * 获取当前应用内存使用情况的简要信息
+     * @return 内存使用情况字符串
+     */
+    private String getMemoryUsageSummary() {
+        Runtime runtime = Runtime.getRuntime();
+        long maxMemory = runtime.maxMemory() / (1024 * 1024); // MB
+        long totalMemory = runtime.totalMemory() / (1024 * 1024); // MB
+        long freeMemory = runtime.freeMemory() / (1024 * 1024); // MB
+        long usedMemory = totalMemory - freeMemory; // MB
+        float memoryUsageRatio = (float) usedMemory / maxMemory;
+        
+        return String.format("内存: %d/%d MB (%.1f%%)", 
+                           usedMemory, maxMemory, memoryUsageRatio * 100);
+    }
 }

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

@@ -389,4 +389,19 @@
         android:layout_marginStart="16dp"
         android:layout_marginBottom="16dp" />
 
+    <!-- 内存信息查询按钮，放在屏幕右下角 -->
+    <Button
+        android:id="@+id/button_memory_info"
+        android:layout_width="90dp"
+        android:layout_height="wrap_content"
+        android:text="内存信息"
+        android:textSize="14sp"
+        android:textColor="#FFFFFF"
+        android:background="@drawable/primary_color_rounded_background"
+        android:minHeight="30dp"
+        android:layout_alignParentBottom="true"
+        android:layout_alignParentEnd="true"
+        android:layout_marginEnd="16dp"
+        android:layout_marginBottom="16dp" />
+
 </RelativeLayout>