[bug ] 打印机bug fix

printer/build.gradle

@@ -51,7 +51,7 @@ repositories {
 }
 
 group 'com.qmai.android.print'
-version '1.1.5-SNAPSHOT'
+version '1.1.6-SNAPSHOT'
 
 gradlePublish {
 

printer/src/main/java/zs/qimai/com/printer2/manager/UsbDeviceManager.kt

@@ -25,7 +25,7 @@ class UsbDeviceManager(override var mType: Int = USB) : DeviceManager() {
                 mmIntf = it.getInterface(0)
                 if (mmIntf != null) {
                     this.mmConnection = this.usbManager?.openDevice(this.usbDevice)
-                    this.deviceId = this.usbDevice?.serialNumber ?:""
+                    this.deviceId = this.usbDevice?.serialNumber ?: ""
                     if (this.mmConnection != null && this.mmConnection?.claimInterface(
                             mmIntf!!,
                             true
@@ -44,7 +44,7 @@ class UsbDeviceManager(override var mType: Int = USB) : DeviceManager() {
                     }
                 }
             }
-            if (this.mmEndOut != null && this.mmEndIn != null) {
+            if (this.mmEndOut != null) {
                 //检查打印机状态
                 PrinterStatusUtils(this).apply {
                     mPrintStatusCallBack = object : PrintStatusCallBack {
@@ -84,16 +84,19 @@ class UsbDeviceManager(override var mType: Int = USB) : DeviceManager() {
     }
 
     override fun readData(bytes: ByteArray): Int {
-        return if (this.mmConnection != null) this.mmConnection!!.bulkTransfer(
-            this.mmEndIn,
-            bytes,
-            bytes.size,
-            200
-        ) else 0
+        this.mmEndIn?.let {
+            return if (this.mmConnection != null) this.mmConnection!!.bulkTransfer(
+                this.mmEndIn,
+                bytes,
+                bytes.size,
+                200
+            ) else 0
+        }
+        return 0
     }
 
     override fun writeData(bytes: ByteArray) {
-         this.mmConnection!!.bulkTransfer(
+        this.mmConnection!!.bulkTransfer(
             this.mmEndOut,
             bytes,
             bytes.size,

printer/src/main/java/zs/qimai/com/printer2/utils/PrintManagerUtils.kt

@@ -10,16 +10,14 @@ import android.hardware.usb.UsbManager
 import android.os.Build
 import android.util.Log
 import androidx.annotation.RequiresApi
+import zs.qimai.com.printer2.callback.*
 import zs.qimai.com.printer2.fragment.BlueToothLists
 import zs.qimai.com.printer2.lifecycle.ActivityManagers
+import zs.qimai.com.printer2.lifecycle.PrintLifeCycleCallBack
 import zs.qimai.com.printer2.manager.BlueDeviceManager
 import zs.qimai.com.printer2.manager.DeviceManagerUtils
-import zs.qimai.com.printer2.callback.*
-import zs.qimai.com.printer2.lifecycle.PrintLifeCycleCallBack
-import zs.qimai.com.printer2.manager.DeviceManager
 import zs.qimai.com.printer2.manager.UsbDeviceManager
 import zs.qimai.com.printer2.receiverManager.UsbRqPermissionReceiverManager
-import java.lang.RuntimeException
 
 
 /****