添加商米的打印驱动，测试发现无法正常打印条码和二维码，待调试

print/src/main/java/com/miya/print/BasePrinter.java

@@ -6,7 +6,7 @@ import android.graphics.Bitmap;
 /**
  * 打印基类
  */
-public class BasePrinter implements IPrinter {
+public abstract class BasePrinter implements IPrinter {
 
     /**
      * 80mm打印纸允许打印的最大图片的宽度,此为经验值

print/src/main/java/com/miya/print/ChuangjiePrinter.java

@@ -43,13 +43,14 @@ public class ChuangjiePrinter extends BasePrinter {
 
     @Override
     public boolean init(Context context) {
+        D.i(TAG, "开始初始化创捷打印机");
         this.context = context;
         if (mUsbDriver == null) {
             getUsbDriverService(context);
         }
         // USB线已经连接
         getUsbDriverService();
-        return connet() == 0;
+        return connet() == PrinterStatusEnum.CODE_SUCCESS.status;
     }
 
     @Override

print/src/main/java/com/miya/print/PrinterManager.java

@@ -17,7 +17,7 @@ public class PrinterManager {
     enum Type {
         //这里添加扩展的驱动
 //        TYPE_HISENSE("hisense", ChuangjiePrinter.class.getName()),
-        TYPE_SUNMI("shangmik1", ShangmiK1Printer.class.getName()),
+        TYPE_SUNMI("sunmiK1", SunmiK1Printer.class.getName()),
         TYPE_YINGTAI("yingtai", YingtaiPrinter.class.getName()),
         TYPE_CHUANGJIE("chuangjie", ChuangjiePrinter.class.getName()),
         TYPE_SANGDA("sangda", SangdaPrinter.class.getName());
@@ -73,10 +73,10 @@ public class PrinterManager {
      */
     public boolean init(Context context) {
         for (Type type : Type.values()) {
+            try {
                 if (printer != null) {
                     printer.release();
                 }
-            try {
                 Class printerCls = Class.forName(type.clsName);
                 printer = (IPrinter) printerCls.newInstance();
                 boolean result = printer.init(context);
@@ -91,7 +91,11 @@ public class PrinterManager {
         }
         //没有找到对应的打印机
         if (printer != null) {
+            try {
                 printer.release();
+            } catch (Exception ex) {
+                ex.printStackTrace();
+            }
         }
         D.i(TAG, "没找到对应的打印机器，请检查");
         return false;
@@ -104,16 +108,58 @@ public class PrinterManager {
      */
     public boolean release() {
         if (isConnected()) {
+            try {
                 boolean result = printer.release();
                 if (result == false) {
                     return false;
                 }
                 printer = null;
                 return true;
+            } catch (Exception ex) {
+                ex.printStackTrace();
+            }
         }
         return true;
     }
 
+    /**
+     * 保险起见提供指定硬件的初始化
+     * ps:谨慎调用
+     *
+     * @param context
+     * @param type    指定硬件类型
+     * @return
+     */
+    public boolean init(Context context, Type type) {
+        if (type == null) {
+            return false;
+        }
+        //是否支持指定硬件
+        boolean isSupported = false;
+        for (Type tmpType : Type.values()) {
+            if (type.typeName.equals(tmpType.typeName)) {
+                isSupported = true;
+            }
+        }
+        if (isSupported == false) {
+            return false;
+        }
+        //反射新建实例
+        try {
+            Class printerCls = Class.forName(type.clsName);
+            printer = (IPrinter) printerCls.newInstance();
+            boolean result = printer.init(context);
+            if (result == true) {
+                printer.setPrinterName(type.typeName);
+                D.i(TAG, "初始化打印机成功，打印机器为：" + type.typeName);
+            }
+            return result;
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+        return false;
+    }
+
     /**
      * 获取当前打印接口
      *

print/src/main/java/com/miya/print/SangdaPrinter.java

@@ -30,6 +30,7 @@ public class SangdaPrinter extends BasePrinter {
 
     @Override
     public boolean init(Context context) {
+        D.i(TAG, "开始初始化桑达打印机");
         super.init(context);
         mPrinter = PrinterAPI.getInstance();
         if (isConnect()) {
@@ -45,8 +46,9 @@ public class SangdaPrinter extends BasePrinter {
                 return false;
             }
         } catch (Exception e) {
-            D.e(TAG, "桑达打印机连接失败");
+            e.printStackTrace();
         }
+        D.e(TAG, "桑达打印机连接失败");
         return false;
     }
 

print/src/main/java/com/miya/print/YingtaiPrinter.java

@@ -26,6 +26,7 @@ public class YingtaiPrinter extends BasePrinter {
 
     @Override
     public boolean init(Context context) {
+        D.i(TAG,"开始初始化英泰打印机");
         this.context = context;
         mPrinter = PrinterAPI.getInstance();
         io = new USBAPI(context);

weighing/src/main/java/com/miya/weighing/SunmiWeighing.java

@@ -31,6 +31,11 @@ public class SunmiWeighing extends BaseWeighing {
      */
     ScaleService scaleService;
 
+    /**
+     * 服务连接器
+     */
+    ServiceConnection serviceConnection;
+
     /**
      * 称重回调监听
      */
@@ -61,32 +66,7 @@ public class SunmiWeighing extends BaseWeighing {
     @Override
     public boolean init(Context context) {
         this.context = context;
-        Intent intent = new Intent();
-        intent.setPackage(SERVICE_PACKAGE);
-        intent.setAction(SERVICE_ACTION);
-        return this.context.bindService(intent, serviceConnection, Context.BIND_AUTO_CREATE);
-    }
-
-    @Override
-    public void setWeighingCallback(WeighingCallback weighingCallback) {
-        this.weighingCallback = weighingCallback;
-    }
-
-    @Override
-    public boolean resetZero() {
-        try {
-            scaleService.zero();
-            return true;
-        } catch (Exception e) {
-            e.printStackTrace();
-        }
-        return false;
-    }
-
-    /**
-     * 服务连接器
-     */
-    ServiceConnection serviceConnection = new ServiceConnection() {
+        serviceConnection = new ServiceConnection() {
             @Override
             public void onServiceConnected(ComponentName name, IBinder service) {
                 scaleService = ScaleService.Stub.asInterface(service);
@@ -113,6 +93,27 @@ public class SunmiWeighing extends BaseWeighing {
                 scaleService = null;
             }
         };
+        Intent intent = new Intent();
+        intent.setPackage(SERVICE_PACKAGE);
+        intent.setAction(SERVICE_ACTION);
+        return this.context.bindService(intent, serviceConnection, Context.BIND_AUTO_CREATE);
+    }
+
+    @Override
+    public void setWeighingCallback(WeighingCallback weighingCallback) {
+        this.weighingCallback = weighingCallback;
+    }
+
+    @Override
+    public boolean resetZero() {
+        try {
+            scaleService.zero();
+            return true;
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+        return false;
+    }
 
     @Override
     public boolean release() {

weighing/src/main/java/com/miya/weighing/WeighingManager.java

@@ -4,6 +4,8 @@ import android.content.Context;
 import android.support.annotation.NonNull;
 import android.util.Log;
 
+import com.miya.weighing.utils.D;
+
 public class WeighingManager {
 
     final static String TAG = WeighingManager.class.getSimpleName();
@@ -80,10 +82,10 @@ public class WeighingManager {
         //轮询所有的称重服务,注意是同步方法
         for (Type type : Type.values()) {
             //确保之前的称重实例已被销毁
+            try {
                 if (weighing != null) {
                     weighing.release();
                 }
-            try {
                 //反射新建实例
                 Class weighingClass = Class.forName(type.clsName);
                 weighing = (Weighing) weighingClass.newInstance();
@@ -155,6 +157,10 @@ public class WeighingManager {
             Class weighingClass = Class.forName(type.clsName);
             weighing = (Weighing) weighingClass.newInstance();
             boolean result = weighing.init(context);
+            if (result == true) {
+                weighing.setWeighingName(type.clsName);
+                D.i(TAG, "称重硬件初始化成功==>" + weighing.getWeighingName());
+            }
             return result;
         } catch (Exception e) {
             e.printStackTrace();