写入字段也能读取别的标签

app/src/main/java/com/example/xiebiaoqian/MainActivity2.java

@@ -21,7 +21,7 @@ import butterknife.BindView;
 import butterknife.ButterKnife;
 import butterknife.OnClick;
 
-public class MainActivity2 extends BaseActivity  implements IAsynchronousMessage{
+public class MainActivity2 extends BaseActivity implements IAsynchronousMessage {
 
     @BindView(R.id.san_redly_tag)
     TextView sanRedlyTag;
@@ -30,7 +30,7 @@ public class MainActivity2 extends BaseActivity  implements IAsynchronousMessage
     @BindView(R.id.san_epc_code)
     TextView sanEpcCode;
     private long exitTime;//退出记时
-    private boolean readType;
+    private String readType = "1";
     private String targetTid = null;
     @SuppressLint("HandlerLeak")
     private Handler handler = new Handler() {
@@ -38,16 +38,23 @@ public class MainActivity2 extends BaseActivity  implements IAsynchronousMessage
         public void handleMessage(Message msg) {
             super.handleMessage(msg);
             playSound();
-            if (readType) {//扫描到要写入的标签
             EPCModel epcModel = (EPCModel) msg.obj;
+            String newCode = ASCIIUtil.hex2Str(epcModel._EPC);
+            switch (readType) {
+                case "1":
                     targetTid = epcModel._TID;
                     sanRedlyTag.setText(targetTid);
                     Log.e("TAG", "TID读取成功" + targetTid);
-            } else {
+                    break;
-                EPCModel epcModel = (EPCModel) msg.obj;
+                case "2":
-                String newCode = ASCIIUtil.hex2Str(epcModel._EPC);
+                    editTextNumber.setText(newCode.trim());
+                    break;
+                case "3":
+
                     Log.e("TAG", "EPC读取成功" + epcModel._EPC);
                     sanEpcCode.setText(newCode);
+                    break;
+
             }
 
 
@@ -61,20 +68,32 @@ public class MainActivity2 extends BaseActivity  implements IAsynchronousMessage
         ButterKnife.bind(this);
     }
 
-    @OnClick({R.id.button_san_tag, R.id.button_epc_write, R.id.button_epc_san, R.id.button_clera_view})
+    @OnClick({R.id.button_san_tag, R.id.button_san_tag2, R.id.button_epc_write, R.id.button_epc_san, R.id.button_clera_view})
     public void onClick(View view) {
         switch (view.getId()) {
             case R.id.button_san_tag:
-                readType = true;
+                readType = "1";
                 UHFReader._Tag6C.GetEPC_TID(1, 1);
                 break;
+
+            case R.id.button_san_tag2:
+                readType = "2";
+                if (targetTid == null) {
+                    Toast.makeText(this, "先读取待写入标签", Toast.LENGTH_SHORT).show();
+                    return;
+                }
+                UHFReader._Tag6C.GetEPC_MatchTID(1, 1,targetTid);
+                break;
+
+
             case R.id.button_epc_write:
+                if (targetTid == null) {
+                    Toast.makeText(this, "先读取待写入标签", Toast.LENGTH_SHORT).show();
+                    return;
+                }
                 String tag = editTextNumber.getText().toString();
                 if (tag.isEmpty()) return;
-                if (tag.length() != 4) {
+                String asciiData = "20202020202020" + ASCIIUtil.str2Hex(tag);
-                    Toast.makeText(this, "输入长度限制位4位", Toast.LENGTH_SHORT).show();
-                }
-                String asciiData = "2020202020202054" + ASCIIUtil.str2Hex(tag);
                 int writeResult = UHFReader._Tag6C.WriteEPC_MatchTID(1, asciiData, targetTid, 0);
                 Toast.makeText(this, writeResult == 0 ? "写入成功，点击下方扫描进行验证" : "写入失败", Toast.LENGTH_SHORT).show();
                 break;
@@ -84,7 +103,7 @@ public class MainActivity2 extends BaseActivity  implements IAsynchronousMessage
                 sanEpcCode.setText(null);
                 break;
             case R.id.button_epc_san:
-                readType = false;
+                readType = "3";
                 UHFReader._Tag6C.GetEPC_TID(1, 1);
                 break;
         }

app/src/main/res/layout/activity_main2.xml

@@ -1,6 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:app="http://schemas.android.com/apk/res-auto"
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
@@ -40,22 +39,22 @@
     </LinearLayout>
 
 
-
+    <TextView
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_marginStart="5dp"
+        android:layout_marginTop="18dp"
+        android:text="待写入信息"
+        android:textColor="@color/blue" />
 
     <LinearLayout
         android:layout_width="match_parent"
         android:layout_height="45dp"
         android:layout_marginLeft="5dp"
-        android:layout_marginTop="18dp"
+        android:layout_marginTop="8dp"
         android:layout_marginRight="5dp"
         android:orientation="horizontal">
 
-        <TextView
-            style="@style/text_title_style"
-            android:layout_width="90dp"
-            android:layout_height="match_parent"
-            android:text="输入编号:" />
-
 
         <EditText
             android:id="@+id/editTextNumber"
@@ -63,17 +62,21 @@
             android:layout_width="match_parent"
             android:layout_height="match_parent"
             android:gravity="center"
-            android:hint="输入4位数字"
+            android:hint="输入/读取数据"
-            android:inputType="number"
-            android:maxLength="4"
-          />
 
+            android:maxLength="6" />
+
+        <Button
+            android:id="@+id/button_san_tag2"
+            style="@style/button_submit"
+            android:layout_width="wrap_content"
+            android:layout_height="match_parent"
+            android:text="读取" />
 
 
     </LinearLayout>
 
 
-
     <Button
         android:id="@+id/button_epc_write"
         style="@style/button_submit"
@@ -106,6 +109,7 @@
 
 
     </LinearLayout>
+
     <Button
         android:id="@+id/button_epc_san"
         style="@style/button_submit"