添加了界面及逻辑

app/src/main/java/com/sw/platecabinet/ext/CommonExt.kt

@@ -46,4 +46,8 @@ val Float.sp: Float
         TypedValue.COMPLEX_UNIT_SP,
         this,
         Resources.getSystem().displayMetrics
-    )
+    )
+
+fun formatNumber(num: String): String {
+    return num.padStart(2, '0')
+}

app/src/main/java/com/sw/platecabinet/ext/TextViewExt.kt

@@ -0,0 +1,33 @@
+package com.sw.platecabinet.ext
+
+import android.os.Handler
+import android.os.Looper
+import android.view.View
+import android.widget.TextView
+
+/**
+ * 设置 TextView 的双击和单击事件监听器
+ * @param doubleClickInterval 双击间隔时间（毫秒），默认 300ms
+ * @param onDoubleClick 双击回调
+ * @param onSingleClick 单击回调
+ */
+fun TextView.setClickListeners(
+    doubleClickInterval: Long = 300,
+    onDoubleClick: (View) -> Unit = {},
+    onSingleClick: (View) -> Unit = {}
+) {
+    var clickCount = 0
+    val handler = Handler(Looper.getMainLooper())
+
+    setOnClickListener { view ->
+        clickCount++
+        handler.postDelayed({
+            if (clickCount == 1) {
+                onSingleClick(view)
+            } else if (clickCount == 2) {
+                onDoubleClick(view)
+            }
+            clickCount = 0 // 重置计数
+        }, doubleClickInterval)
+    }
+}