diff --git a/app/src/main/java/com/serverapk/i9_bl_test/ReadCardActivity.java b/app/src/main/java/com/serverapk/i9_bl_test/ReadCardActivity.java
index 229ece2..fa3c44a 100644
--- a/app/src/main/java/com/serverapk/i9_bl_test/ReadCardActivity.java
+++ b/app/src/main/java/com/serverapk/i9_bl_test/ReadCardActivity.java
@@ -119,12 +119,7 @@ public class ReadCardActivity extends AppCompatActivity {
                         public void connected() {
                             isConnected = true;
                             Log.d(TAG, "connected1==========");
-                            try {
-                                Thread.sleep(200);
-                            } catch (InterruptedException e) {
-                                throw new RuntimeException(e);
-                            }
-                            beginReadCard();
+                            handler.postDelayed(ReadCardActivity.this::beginReadCard,1000);
                         }
 
                         @Override
@@ -597,7 +592,7 @@ public class ReadCardActivity extends AppCompatActivity {
         @Override
         public void onStopTradeSuccess() {
             Log.e(TAG, "onStopTradeSuccess");
-            finish();
+            handler.postDelayed(ReadCardActivity.this::finish,1000);
         }
 
         @Override
@@ -644,8 +639,11 @@ public class ReadCardActivity extends AppCompatActivity {
             if (mBluetoothController != null) {
                 Log.d(TAG,"释放mBluetoothController====");
                 mBluetoothController.scanLeDevice(false);
+                mBluetoothController.disConnect();
                 mBluetoothController.close();
+//                mBluetoothController.unRegisterConnectReceiver(  this);
                 mBluetoothController.unRegisterReceiver();
+//                mBluetoothController.release();
                 mBluetoothController = null;
             }
             if (executorService != null && !executorService.isShutdown()) {