Android实现斑马Wifi打印机打印小票图片

最近一期做WiFi打印机打印小票功能，其中有一个功能点是把Logo打印在小票上面。

实现思路就是对网上的思路进行一下调整修改，方便Android端调用，很简单；





测试的打印机型号：Zebra GK888T

Bitmap to ZPL

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  </td>
  
  <td class="code">
    <div class="top-box hide">
      <div class="alert-info">
      </div>
    </div>
    
    <div class="line">
    </div>
    
    <div class="line">
      <span class="comment">/**</span>
    </div>
    
    <div class="line">
    </div>
    
    <div class="line">
      */
    </div>
    
    <div class="line">
      <span class="keyword">public</span> <span class="class"><span class="keyword">class</span> <span class="title">ZPLImageConverter</span> </span>{
    </div>
    
    <div class="line">
    </div>
    
    <div class="line">
      <span class="keyword">private</span> Context context;
    </div>
    
    <div class="line">
    </div>
    
    <div class="line">
      <span class="function"><span class="keyword">public</span> <span class="title">ZPLImageConverter</span><span class="params">(Context context)</span> </span>{
    </div>
    
    <div class="line">
      <span class="keyword">this</span>.context = context;
    </div>
    
    <div class="line">
      }
    </div>
    
    <div class="line">
    </div>
    
    <div class="line">
      <span class="keyword">private</span> <span class="keyword">int</span> blackLimit = <span class="number">380</span>;
    </div>
    
    <div class="line">
      <span class="keyword">private</span> <span class="keyword">int</span> total;
    </div>
    
    <div class="line">
      <span class="keyword">private</span> <span class="keyword">int</span> widthBytes;
    </div>
    
    <div class="line">
      <span class="keyword">private</span> <span class="keyword">boolean</span> compressHex = <span class="keyword">false</span>;
    </div>
    
    <div class="line">
      <span class="keyword">private</span> <span class="keyword">static</span> Map<Integer, String> mapCode = <span class="keyword">new</span> HashMap<Integer, String>();
    </div>
    
    <div class="line">
    </div>
    
    <div class="line">
      {
    </div>
    
    <div class="line">
      mapCode.put(<span class="number">1</span>, <span class="string">&#8220;G&#8221;</span>);
    </div>
    
    <div class="line">
      mapCode.put(<span class="number">2</span>, <span class="string">&#8220;H&#8221;</span>);
    </div>
    
    <div class="line">
      mapCode.put(<span class="number">3</span>, <span class="string">&#8220;I&#8221;</span>);
    </div>
    
    <div class="line">
      mapCode.put(<span class="number">4</span>, <span class="string">&#8220;J&#8221;</span>);
    </div>
    
    <div class="line">
      mapCode.put(<span class="number">5</span>, <span class="string">&#8220;K&#8221;</span>);
    </div>
    
    <div class="line">
      mapCode.put(<span class="number">6</span>, <span class="string">&#8220;L&#8221;</span>);
    </div>
    
    <div class="line">
      mapCode.put(<span class="number">7</span>, <span class="string">&#8220;M&#8221;</span>);
    </div>
    
    <div class="line">
      mapCode.put(<span class="number">8</span>, <span class="string">&#8220;N&#8221;</span>);
    </div>
    
    <div class="line">
      mapCode.put(<span class="number">9</span>, <span class="string">&#8220;O&#8221;</span>);
    </div>
    
    <div class="line">
      mapCode.put(<span class="number">10</span>, <span class="string">&#8220;P&#8221;</span>);
    </div>
    
    <div class="line">
      mapCode.put(<span class="number">11</span>, <span class="string">&#8220;Q&#8221;</span>);
    </div>
    
    <div class="line">
      mapCode.put(<span class="number">12</span>, <span class="string">&#8220;R&#8221;</span>);
    </div>
    
    <div class="line">
      mapCode.put(<span class="number">13</span>, <span class="string">&#8220;S&#8221;</span>);
    </div>
    
    <div class="line">
      mapCode.put(<span class="number">14</span>, <span class="string">&#8220;T&#8221;</span>);
    </div>
    
    <div class="line">
      mapCode.put(<span class="number">15</span>, <span class="string">&#8220;U&#8221;</span>);
    </div>
    
    <div class="line">
      mapCode.put(<span class="number">16</span>, <span class="string">&#8220;V&#8221;</span>);
    </div>
    
    <div class="line">
      mapCode.put(<span class="number">17</span>, <span class="string">&#8220;W&#8221;</span>);
    </div>
    
    <div class="line">
      mapCode.put(<span class="number">18</span>, <span class="string">&#8220;X&#8221;</span>);
    </div>
    
    <div class="line">
      mapCode.put(<span class="number">19</span>, <span class="string">&#8220;Y&#8221;</span>);
    </div>
    
    <div class="line">
      mapCode.put(<span class="number">20</span>, <span class="string">&#8220;g&#8221;</span>);
    </div>
    
    <div class="line">
      mapCode.put(<span class="number">40</span>, <span class="string">&#8220;h&#8221;</span>);
    </div>
    
    <div class="line">
      mapCode.put(<span class="number">60</span>, <span class="string">&#8220;i&#8221;</span>);
    </div>
    
    <div class="line">
      mapCode.put(<span class="number">80</span>, <span class="string">&#8220;j&#8221;</span>);
    </div>
    
    <div class="line">
      mapCode.put(<span class="number">100</span>, <span class="string">&#8220;k&#8221;</span>);
    </div>
    
    <div class="line">
      mapCode.put(<span class="number">120</span>, <span class="string">&#8220;l&#8221;</span>);
    </div>
    
    <div class="line">
      mapCode.put(<span class="number">140</span>, <span class="string">&#8220;m&#8221;</span>);
    </div>
    
    <div class="line">
      mapCode.put(<span class="number">160</span>, <span class="string">&#8220;n&#8221;</span>);
    </div>
    
    <div class="line">
      mapCode.put(<span class="number">180</span>, <span class="string">&#8220;o&#8221;</span>);
    </div>
    
    <div class="line">
      mapCode.put(<span class="number">200</span>, <span class="string">&#8220;p&#8221;</span>);
    </div>
    
    <div class="line">
      mapCode.put(<span class="number">220</span>, <span class="string">&#8220;q&#8221;</span>);
    </div>
    
    <div class="line">
      mapCode.put(<span class="number">240</span>, <span class="string">&#8220;r&#8221;</span>);
    </div>
    
    <div class="line">
      mapCode.put(<span class="number">260</span>, <span class="string">&#8220;s&#8221;</span>);
    </div>
    
    <div class="line">
      mapCode.put(<span class="number">280</span>, <span class="string">&#8220;t&#8221;</span>);
    </div>
    
    <div class="line">
      mapCode.put(<span class="number">300</span>, <span class="string">&#8220;u&#8221;</span>);
    </div>
    
    <div class="line">
      mapCode.put(<span class="number">320</span>, <span class="string">&#8220;v&#8221;</span>);
    </div>
    
    <div class="line">
      mapCode.put(<span class="number">340</span>, <span class="string">&#8220;w&#8221;</span>);
    </div>
    
    <div class="line">
      mapCode.put(<span class="number">360</span>, <span class="string">&#8220;x&#8221;</span>);
    </div>
    
    <div class="line">
      mapCode.put(<span class="number">380</span>, <span class="string">&#8220;y&#8221;</span>);
    </div>
    
    <div class="line">
      mapCode.put(<span class="number">400</span>, <span class="string">&#8220;z&#8221;</span>);
    </div>
    
    <div class="line">
      }
    </div>
    
    <div class="line">
      <span class="function"><span class="keyword">public</span> String <span class="title">convertFromImg</span><span class="params">(Bitmap image)</span> <span class="keyword">throws</span> IOException </span>{
    </div>
    
    <div class="line">
    </div>
    
    <div class="line">
      String cuerpo = createBody(image);
    </div>
    
    <div class="line">
      <span class="keyword">if</span>(compressHex)
    </div>
    
    <div class="line">
      cuerpo = encodeHexAscii(cuerpo);
    </div>
    
    <div class="line">
      <span class="keyword">return</span> headDoc() + cuerpo + footDoc();
    </div>
    
    <div class="line">
      }
    </div>
    
    <div class="line">
    </div>
    
    <div class="line">
      <span class="function"><span class="keyword">private</span> String <span class="title">createBody</span><span class="params">(Bitmap originalImage)</span> <span class="keyword">throws</span> IOException </span>{
    </div>
    
    <div class="line">
      StringBuffer sb = <span class="keyword">new</span> StringBuffer();
    </div>
    
    <div class="line">
      <span class="comment">// Graphics2D graphics = originalImage.createGraphics();</span>
    </div>
    
    <div class="line">
      <span class="comment">// graphics.drawImage(originalImage, 0, 0, null);</span>
    </div>
    
    <div class="line">
    </div>
    
    <div class="line">
      <span class="keyword">int</span> height = originalImage.getHeight();
    </div>
    
    <div class="line">
      <span class="keyword">int</span> width = originalImage.getWidth();
    </div>
    
    <div class="line">
      <span class="keyword">int</span> rgb, red, green, blue, index=<span class="number"></span>;
    </div>
    
    <div class="line">
      <span class="keyword">char</span> auxBinaryChar[] = {<span class="string">&#8216;0&#8217;</span>, <span class="string">&#8216;0&#8217;</span>, <span class="string">&#8216;0&#8217;</span>, <span class="string">&#8216;0&#8217;</span>, <span class="string">&#8216;0&#8217;</span>, <span class="string">&#8216;0&#8217;</span>, <span class="string">&#8216;0&#8217;</span>, <span class="string">&#8216;0&#8217;</span>};
    </div>
    
    <div class="line">
      widthBytes = width/<span class="number">8</span>;
    </div>
    
    <div class="line">
      <span class="keyword">if</span>(width%<span class="number">8</span> > <span class="number"></span>){
    </div>
    
    <div class="line">
      widthBytes= (((<span class="keyword">int</span>)(width / <span class="number">8</span>)) + <span class="number">1</span>);
    </div>
    
    <div class="line">
      } <span class="keyword">else</span> {
    </div>
    
    <div class="line">
      widthBytes= width/<span class="number">8</span>;
    </div>
    
    <div class="line">
      }
    </div>
    
    <div class="line">
      <span class="keyword">this</span>.total = widthBytes*height;
    </div>
    
    <div class="line">
      <span class="keyword">for</span> (<span class="keyword">int</span> h = <span class="number"></span>; h<height; h++)
    </div>
    
    <div class="line">
      {
    </div>
    
    <div class="line">
      <span class="keyword">for</span> (<span class="keyword">int</span> w = <span class="number"></span>; w<width; w++)
    </div>
    
    <div class="line">
      {
    </div>
    
    <div class="line">
      <span class="comment">// rgb = originalImage.getRGB(w, h);</span>
    </div>
    
    <div class="line">
      rgb = originalImage.getPixel(w, h);
    </div>
    
    <div class="line">
      red = (rgb >> <span class="number">16</span> ) & <span class="number">0x000000FF</span>;
    </div>
    
    <div class="line">
      green = (rgb >> <span class="number">8</span> ) & <span class="number">0x000000FF</span>;
    </div>
    
    <div class="line">
      blue = (rgb) & <span class="number">0x000000FF</span>;
    </div>
    
    <div class="line">
      <span class="keyword">char</span> auxChar = <span class="string">&#8216;1&#8217;</span>;
    </div>
    
    <div class="line">
      <span class="keyword">int</span> totalColor = red + green + blue;
    </div>
    
    <div class="line">
      <span class="keyword">if</span>(totalColor>blackLimit){
    </div>
    
    <div class="line">
      auxChar = <span class="string">&#8216;0&#8217;</span>;
    </div>
    
    <div class="line">
      }
    </div>
    
    <div class="line">
      auxBinaryChar[index] = auxChar;
    </div>
    
    <div class="line">
      index++;
    </div>
    
    <div class="line">
      <span class="keyword">if</span>(index==<span class="number">8</span> || w==(width-<span class="number">1</span>)){
    </div>
    
    <div class="line">
      sb.append(fourByteBinary(<span class="keyword">new</span> String(auxBinaryChar)));
    </div>
    
    <div class="line">
      auxBinaryChar = <span class="keyword">new</span> <span class="keyword">char</span>[]{<span class="string">&#8216;0&#8217;</span>, <span class="string">&#8216;0&#8217;</span>, <span class="string">&#8216;0&#8217;</span>, <span class="string">&#8216;0&#8217;</span>, <span class="string">&#8216;0&#8217;</span>, <span class="string">&#8216;0&#8217;</span>, <span class="string">&#8216;0&#8217;</span>, <span class="string">&#8216;0&#8217;</span>};
    </div>
    
    <div class="line">
      index=<span class="number"></span>;
    </div>
    
    <div class="line">
      }
    </div>
    
    <div class="line">
      }
    </div>
    
    <div class="line">
      sb.append(<span class="string">&#8220;\n&#8221;</span>);
    </div>
    
    <div class="line">
      }
    </div>
    
    <div class="line">
      <span class="keyword">return</span> sb.toString();
    </div>
    
    <div class="line">
      }
    </div>
    
    <div class="line">
      <span class="function"><span class="keyword">private</span> String <span class="title">fourByteBinary</span><span class="params">(String binaryStr)</span></span>{
    </div>
    
    <div class="line">
      <span class="keyword">int</span> decimal = Integer.parseInt(binaryStr,<span class="number">2</span>);
    </div>
    
    <div class="line">
      <span class="keyword">if</span> (decimal><span class="number">15</span>){
    </div>
    
    <div class="line">
      <span class="keyword">return</span> Integer.toString(decimal,<span class="number">16</span>).toUpperCase();
    </div>
    
    <div class="line">
      } <span class="keyword">else</span> {
    </div>
    
    <div class="line">
      <span class="keyword">return</span> <span class="string">&#8220;0&#8221;</span> + Integer.toString(decimal,<span class="number">16</span>).toUpperCase();
    </div>
    
    <div class="line">
      }
    </div>
    
    <div class="line">
      }
    </div>
    
    <div class="line">
      <span class="function"><span class="keyword">private</span> String <span class="title">encodeHexAscii</span><span class="params">(String code)</span></span>{
    </div>
    
    <div class="line">
      <span class="keyword">int</span> maxlinea = widthBytes * <span class="number">2</span>;
    </div>
    
    <div class="line">
      StringBuffer sbCode = <span class="keyword">new</span> StringBuffer();
    </div>
    
    <div class="line">
      StringBuffer sbLinea = <span class="keyword">new</span> StringBuffer();
    </div>
    
    <div class="line">
      String previousLine = <span class="keyword">null</span>;
    </div>
    
    <div class="line">
      <span class="keyword">int</span> counter = <span class="number">1</span>;
    </div>
    
    <div class="line">
      <span class="keyword">char</span> aux = code.charAt(<span class="number"></span>);
    </div>
    
    <div class="line">
      <span class="keyword">boolean</span> firstChar = <span class="keyword">false</span>;
    </div>
    
    <div class="line">
      <span class="keyword">for</span>(<span class="keyword">int</span> i = <span class="number">1</span>; i< code.length(); i++ ){
    </div>
    
    <div class="line">
      <span class="keyword">if</span>(firstChar){
    </div>
    
    <div class="line">
      aux = code.charAt(i);
    </div>
    
    <div class="line">
      firstChar = <span class="keyword">false</span>;
    </div>
    
    <div class="line">
      <span class="keyword">continue</span>;
    </div>
    
    <div class="line">
      }
    </div>
    
    <div class="line">
      <span class="keyword">if</span>(code.charAt(i)==<span class="string">&#8216;\n&#8217;</span>){
    </div>
    
    <div class="line">
      <span class="keyword">if</span>(counter>=maxlinea && aux==<span class="string">&#8216;0&#8217;</span>){
    </div>
    
    <div class="line">
      sbLinea.append(<span class="string">&#8220;,&#8221;</span>);
    </div>
    
    <div class="line">
      } <span class="keyword">else</span> <span class="keyword">if</span>(counter>=maxlinea && aux==<span class="string">&#8216;F&#8217;</span>){
    </div>
    
    <div class="line">
      sbLinea.append(<span class="string">&#8220;!&#8221;</span>);
    </div>
    
    <div class="line">
      } <span class="keyword">else</span> <span class="keyword">if</span> (counter><span class="number">20</span>){
    </div>
    
    <div class="line">
      <span class="keyword">int</span> multi20 = (counter/<span class="number">20</span>)*<span class="number">20</span>;
    </div>
    
    <div class="line">
      <span class="keyword">int</span> resto20 = (counter%<span class="number">20</span>);
    </div>
    
    <div class="line">
      sbLinea.append(mapCode.get(multi20));
    </div>
    
    <div class="line">
      <span class="keyword">if</span>(resto20!=<span class="number"></span>){
    </div>
    
    <div class="line">
      sbLinea.append(mapCode.get(resto20) + aux);
    </div>
    
    <div class="line">
      } <span class="keyword">else</span> {
    </div>
    
    <div class="line">
      sbLinea.append(aux);
    </div>
    
    <div class="line">
      }
    </div>
    
    <div class="line">
      } <span class="keyword">else</span> {
    </div>
    
    <div class="line">
      sbLinea.append(mapCode.get(counter) + aux);
    </div>
    
    <div class="line">
      <span class="keyword">if</span>(mapCode.get(counter)==<span class="keyword">null</span>){
    </div>
    
    <div class="line">
      }
    </div>
    
    <div class="line">
      }
    </div>
    
    <div class="line">
      counter = <span class="number">1</span>;
    </div>
    
    <div class="line">
      firstChar = <span class="keyword">true</span>;
    </div>
    
    <div class="line">
      <span class="keyword">if</span>(sbLinea.toString().equals(previousLine)){
    </div>
    
    <div class="line">
      sbCode.append(<span class="string">&#8220;:&#8221;</span>);
    </div>
    
    <div class="line">
      } <span class="keyword">else</span> {
    </div>
    
    <div class="line">
      sbCode.append(sbLinea.toString());
    </div>
    
    <div class="line">
      }
    </div>
    
    <div class="line">
      previousLine = sbLinea.toString();
    </div>
    
    <div class="line">
      sbLinea.setLength(<span class="number"></span>);
    </div>
    
    <div class="line">
      <span class="keyword">continue</span>;
    </div>
    
    <div class="line">
      }
    </div>
    
    <div class="line">
      <span class="keyword">if</span>(aux == code.charAt(i)){
    </div>
    
    <div class="line">
      counter++;
    </div>
    
    <div class="line">
      } <span class="keyword">else</span> {
    </div>
    
    <div class="line">
      <span class="keyword">if</span>(counter><span class="number">20</span>){
    </div>
    
    <div class="line">
      <span class="keyword">int</span> multi20 = (counter/<span class="number">20</span>)*<span class="number">20</span>;
    </div>
    
    <div class="line">
      <span class="keyword">int</span> resto20 = (counter%<span class="number">20</span>);
    </div>
    
    <div class="line">
      sbLinea.append(mapCode.get(multi20));
    </div>
    
    <div class="line">
      <span class="keyword">if</span>(resto20!=<span class="number"></span>){
    </div>
    
    <div class="line">
      sbLinea.append(mapCode.get(resto20) + aux);
    </div>
    
    <div class="line">
      } <span class="keyword">else</span> {
    </div>
    
    <div class="line">
      sbLinea.append(aux);
    </div>
    
    <div class="line">
      }
    </div>
    
    <div class="line">
      } <span class="keyword">else</span> {
    </div>
    
    <div class="line">
      sbLinea.append(mapCode.get(counter) + aux);
    </div>
    
    <div class="line">
      }
    </div>
    
    <div class="line">
      counter = <span class="number">1</span>;
    </div>
    
    <div class="line">
      aux = code.charAt(i);
    </div>
    
    <div class="line">
      }
    </div>
    
    <div class="line">
      }
    </div>
    
    <div class="line">
      <span class="keyword">return</span> sbCode.toString();
    </div>
    
    <div class="line">
      }
    </div>
    
    <div class="line">
      <span class="function"><span class="keyword">private</span> String <span class="title">headDoc</span><span class="params">()</span> </span>{
    </div>
    
    <div class="line">
      String str = <span class="comment">/*&#8221;^XA &#8221; +*/</span>
    </div>
    
    <div class="line">
      <span class="string">&#8220;^FO10,50^GFA,&#8221;</span>+ total + <span class="string">&#8220;,&#8221;</span>+ total + <span class="string">&#8220;,&#8221;</span> + widthBytes +<span class="string">&#8220;, &#8220;</span>;
    </div>
    
    <div class="line">
      <span class="keyword">return</span> str;
    </div>
    
    <div class="line">
      }
    </div>
    
    <div class="line">
      <span class="function"><span class="keyword">private</span> String <span class="title">footDoc</span><span class="params">()</span></span>{
    </div>
    
    <div class="line">
      String str = <span class="string">&#8220;^FS&#8221;</span><span class="comment">/*+ &#8220;^XZ&#8221;*/</span>;
    </div>
    
    <div class="line">
      <span class="keyword">return</span> str;
    </div>
    
    <div class="line">
      }
    </div>
    
    <div class="line">
      <span class="function"><span class="keyword">public</span> <span class="keyword">void</span> <span class="title">setCompressHex</span><span class="params">(<span class="keyword">boolean</span> compressHex)</span> </span>{
    </div>
    
    <div class="line">
      <span class="keyword">this</span>.compressHex = compressHex;
    </div>
    
    <div class="line">
      }
    </div>
    
    <div class="line">
      <span class="function"><span class="keyword">public</span> <span class="keyword">void</span> <span class="title">setBlacknessLimitPercentage</span><span class="params">(<span class="keyword">int</span> percentage)</span></span>{
    </div>
    
    <div class="line">
      blackLimit = (percentage * <span class="number">768</span> / <span class="number">100</span>);
    </div>
    
    <div class="line">
      }
    </div>
    
    <div class="line">
      }
    </div>
  </td>
</tr>

调用方式

就是把Bitmap对象转化为ZPL编码格式，并把转化后的内容塞到ZPL命令中，和打印机通过Wifi 连接，把组装后的命令发给打印机就可以了。

    <div class="line">
      2
    </div>
    
    <div class="line">
      3
    </div>
    
    <div class="line">
      4
    </div>
    
    <div class="line">
      5
    </div>
    
    <div class="line">
      6
    </div>
    
    <div class="line">
      7
    </div>
  </td>
  
  <td class="code">
    <div class="top-box hide">
      <div class="alert-info">
      </div>
    </div>
    
    <div class="line">
    </div>
    
    <div class="line">
      ZPLImageConverter zp = <span class="keyword">new</span> ZPLImageConverter(context);
    </div>
    
    <div class="line">
      zp.setCompressHex(<span class="keyword">true</span>);
    </div>
    
    <div class="line">
      zp.setBlacknessLimitPercentage(<span class="number">50</span>);
    </div>
    
    <div class="line">
      String str = zp.convertFromImg(myBitmap);
    </div>
    
    <div class="line">
      zplStr += str;
    </div>
    
    <div class="line">
      <span class="comment">//&#8230;</span>
    </div>
  </td>
</tr>

其它命令的时候可以参考zebra打印机官方文档。

refs

- [http://labelary.com/viewer.html](http://labelary.com/viewer.html) （在线调整打印小票样式细节）

- [http://www.jcgonzalez.com/java-image-to-zpl-example](http://www.jcgonzalez.com/java-image-to-zpl-example)

- https://jinfengli.github.io/2017/11/17/zebra_printer_logo/

Bitmap to ZPL#

调用方式#

refs#

💬 评论

Bitmap to ZPL

调用方式

refs