React Native ESC POS Printer Library v0.0.1

This is the first release.

Author: bondwp

.npmignore

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+node_modules
+android/build
+android/build/*

LICENSE

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+This is free and unencumbered software released into the public domain.
+
+Anyone is free to copy, modify, publish, use, compile, sell, or
+distribute this software, either in source code form or as a compiled
+binary, for any purpose, commercial or non-commercial, and by any
+means.
+
+In jurisdictions that recognize copyright laws, the author or authors
+of this software dedicate any and all copyright interest in the
+software to the public domain. We make this dedication for the benefit
+of the public at large and to the detriment of our heirs and
+successors. We intend this dedication to be an overt act of
+relinquishment in perpetuity of all present and future rights to this
+software under copyright law.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+OTHER DEALINGS IN THE SOFTWARE.
+
+For more information, please refer to <http://unlicense.org>

README.md

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+## React Native Android Library For ESC POS PRINTER

android/build.gradle

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+import groovy.json.JsonSlurper
+
+def computeVersionName() {
+    // dynamically retrieve version from package.json
+    def slurper = new JsonSlurper()
+    def json = slurper.parse(file('../package.json'), "utf-8")
+    return json.version
+}
+
+buildscript {
+    repositories {
+        jcenter()
+    }
+
+    dependencies {
+        classpath 'com.android.tools.build:gradle:1.5.0'
+    }
+}
+
+apply plugin: 'com.android.library'
+
+android {
+    compileSdkVersion 23
+    buildToolsVersion "23.0.1"
+
+    defaultConfig {
+        minSdkVersion 16
+        targetSdkVersion 22
+        versionCode 1
+        // get version name from package.json version
+        versionName computeVersionName()
+
+        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
+    }
+    lintOptions {
+        abortOnError false
+    }
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
+        }
+    }
+}
+
+repositories {
+    mavenCentral()
+}
+
+dependencies {
+    compile fileTree(dir: 'libs', include: ['*.jar'])
+    androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
+        exclude group: 'com.android.support', module: 'support-annotations'
+    })
+    compile 'com.android.support:appcompat-v7:21.2.1'
+    compile 'com.facebook.react:react-native:+'
+
+}
+}

android/src/main/AndroidManifest.xml

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+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+          package="com.bondwp322.react_native.esc_pos_lib">
+</manifest>

android/src/main/java/com/bondwp322/react_native/esc_pos_lib/RNPrinterModule.java

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+package com.bondwp322.react_native.esc_pos_lib;
+
+
+import android.hardware.usb.UsbDevice;
+
+import com.facebook.react.bridge.Arguments;
+import com.facebook.react.bridge.Promise;
+import com.facebook.react.bridge.ReactApplicationContext;
+import com.facebook.react.bridge.ReactContextBaseJavaModule;
+import com.facebook.react.bridge.ReactMethod;
+import com.facebook.react.bridge.WritableArray;
+import com.facebook.react.bridge.WritableMap;
+
+import java.util.List;
+
+public class RNPrinterModule extends ReactContextBaseJavaModule {
+
+
+    private USBPrinterAdapter adapter;
+    public  RNPrinterModule(ReactApplicationContext reactContext){
+        super(reactContext);
+        this.adapter = USBPrinterAdapter.getInstance();
+        this.adapter.init(reactContext);
+    }
+
+    @Override
+    public String getName() {
+        return "RNPrinter";
+    }
+
+
+    @ReactMethod
+    public void getUSBDeviceList(Promise promise) {
+        List<UsbDevice> usbDevices = adapter.getDeviceList();
+        WritableArray pairedDeviceList = Arguments.createArray();
+        for (UsbDevice usbDevice : usbDevices) {
+            WritableMap deviceMap = Arguments.createMap();
+            deviceMap.putString("device_name", usbDevice.getDeviceName());
+            deviceMap.putInt("device_id", usbDevice.getDeviceId());
+            deviceMap.putInt("vendor_id", usbDevice.getVendorId());
+            deviceMap.putInt("product_id", usbDevice.getProductId());
+            pairedDeviceList.pushMap(deviceMap);
+        }
+        promise.resolve(pairedDeviceList);
+    }
+
+
+    @ReactMethod
+    public void connectPrinter(Integer vendorId, Integer productId, Promise promise) {
+        if(!adapter.selectDevice(vendorId, productId)){
+            promise.resolve(false);
+        }else{
+            promise.resolve(true);
+        }
+    }
+
+
+    @ReactMethod
+    public void closeConn(Promise promise) {
+        adapter.closeConnectionIfExists();
+        promise.resolve(null);
+    }
+
+
+
+
+    @ReactMethod
+    public void printText(String text) {
+        adapter.printText(text);
+    }
+
+    @ReactMethod
+    public void printRawData(String base64Data) {
+        adapter.printRawData(base64Data);
+    }
+
+}
+

android/src/main/java/com/bondwp322/react_native/esc_pos_lib/RNPrinterPackage.java

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+package com.bondwp322.react_native.esc_pos_lib;
+
+import com.facebook.react.ReactPackage;
+import com.facebook.react.bridge.NativeModule;
+import com.facebook.react.bridge.ReactApplicationContext;
+import com.facebook.react.uimanager.ViewManager;
+
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.List;
+
+public class RNPrinterPackage implements ReactPackage {
+    @Override
+    public List<NativeModule> createNativeModules(ReactApplicationContext reactContext) {
+        return Arrays.asList(new NativeModule[]{
+                new RNPrinterModule(reactContext)
+        });
+    }
+
+    @Override
+    public List<ViewManager> createViewManagers(ReactApplicationContext reactContext) {
+        return Collections.emptyList();
+    }
+}