fix：写数据生成taskId时，添加一个5位随机字符串，避免生成相同的taskId，导致被移除队列中相同taskId的数据

Author: buhuiming

app/build.gradle

@@ -11,8 +11,8 @@ android {
         applicationId "com.bhm.ble"
         minSdk 24
         targetSdk 34
-        versionCode 230
-        versionName "2.3.0"
+        versionCode 231
+        versionName "2.3.1"
 
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
     }

ble/build.gradle

@@ -6,7 +6,7 @@ plugins {
 
 //ext.GROUP = "com.lute.ble"
 //ext.POM_ARTIFACT_ID = "BleCore"
-//ext.VERSION_NAME = "2.3.0"
+//ext.VERSION_NAME = "2.3.1"
 ////引用gradle_upload.gradle
 //apply from: "${project.rootDir}/maven_upload.gradle"
 
@@ -19,7 +19,7 @@ afterEvaluate {
                 // 这里头是artifacts的配置信息，不填会采用默认的
                 groupId = 'com.github.buhuiming'
                 artifactId = 'BleCore'
-                version = '2.3.0'
+                version = '2.3.1'
 
                 from components.release
                 artifact androidSourcesJar //打包源码，去除这行打的包将看不到源码

ble/src/main/java/com/bhm/ble/device/BleConnectedDevice.kt

@@ -60,6 +60,8 @@ internal class BleConnectedDevice(val bleDevice: BleDevice) : BluetoothGattCallb
 
     private var bleEventCallback: BleEventCallback? = null
 
+    private val characters = ('a'..'z') + ('A'..'Z') + ('0'..'9')
+
     private fun initBleConnectRequest() {
         if (bleConnectRequest == null) {
             bleConnectRequest = BleConnectRequest(bleDevice, this)
@@ -409,7 +411,7 @@ internal class BleConnectedDevice(val bleDevice: BleDevice) : BluetoothGattCallb
         bleWriteRequest?.writeData(
             serviceUUID,
             writeUUID,
-            System.currentTimeMillis().toString(),
+            System.currentTimeMillis().toString() + generateRandomString(),
             dataArray,
             writeType,
             bleWriteCallback
@@ -434,7 +436,7 @@ internal class BleConnectedDevice(val bleDevice: BleDevice) : BluetoothGattCallb
         bleWriteRequest?.writeQueueData(
             serviceUUID,
             writeUUID,
-            System.currentTimeMillis().toString(),
+            System.currentTimeMillis().toString() + generateRandomString(),
             dataArray,
             skipErrorPacketData,
             retryWriteCount,
@@ -529,4 +531,13 @@ internal class BleConnectedDevice(val bleDevice: BleDevice) : BluetoothGattCallb
         bleConnectRequest = null
         bleEventCallback = null
     }
+
+    /**
+     * 从[characters]中随机生成5个字符组成的字符串
+     */
+    private fun generateRandomString(): String {
+        return (1..5)
+            .map { characters.random() }
+            .joinToString("")
+    }
 }