修正addHR文字大小問題

app/src/main/java/xyz/mtfos/btdemo/PrinterBle.java

@@ -59,6 +59,8 @@ public class PrinterBle {
     final public static int ALIGN_RIGHT = 0x02;
 
     private int lastAlign = 0x00;
+    private int lastWidth = 1;
+    private int lastHeigh = 1;
 
     // 藍芽狀態
     public int mState = 0x00;
@@ -412,20 +414,29 @@ public class PrinterBle {
 
     public PrinterBle setSize(int w, int h) {
         if (w < 1 || h < 1 || w > 3 || h > 3) return this;
+        lastWidth = w;
+        lastHeigh = h;
         return addText(String.format("__&s%d,%d__", w, h));
     }
 
     public PrinterBle addHR() {
         int align = this.lastAlign;
+        int w = lastWidth;
+        int h = lastHeigh;
         setAlign(ALIGN_CENTER);
+        resetSize();
         textNewLine();
         addTextln(StringUtils.repeat('-', 20));
         setAlign(align);
+        setSize(w, h);
         return this;
     }
 
-    public void resetSize() {
+    public PrinterBle resetSize() {
+        lastHeigh = 1;
+        lastWidth = 1;
         setSize(1, 1);
+        return this;
     }
 
     public ArrayList<String> getDataQueue() {