How to Print Unsupported Character Sets with a POS Printer: Difference between revisions
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There are two ways to print html content, if your app is using our C SDK, please use the java method in JNI API, and if using our Java SDK, please use the Java method. | There are two ways to print html content, if your app is using our C SDK, please use the java method in JNI API, and if using our Java SDK, please use the Java method. | ||
Please add WebView.enableSlowWholeDocumentDraw() in your APP source code, because we use android webview to print html content. | Please add WebView.enableSlowWholeDocumentDraw() in your APP source code, because we use android webview to print html content. | ||
== Permission == | == Permission == | ||
android.permission.SYSTEM_ALERT_WINDOW | |||
The app declares the permission in the manifest. | The app declares the permission in the manifest. | ||
== API Overview == | == by JNI API == | ||
=== <big>PrintHtmlInterface.printHTML</big>=== | === API Overview === | ||
==== <big>PrintHtmlInterface.printHTML</big>==== | |||
<syntaxhighlight lang="java">void printHTML(Context context, String htmlcontent, PrinterHtmlListener listener);</syntaxhighlight> | <syntaxhighlight lang="java">void printHTML(Context context, String htmlcontent, PrinterHtmlListener listener);</syntaxhighlight> | ||
Print HTML content. | Print HTML content. | ||
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|} | |} | ||
=== <big>PrintHtmlInterface.convert2Image</big>=== | ==== <big>PrintHtmlInterface.convert2Image</big>==== | ||
<syntaxhighlight lang="java">void convert2Image(Context context, String htmlContent, PrinterHtmlListener listener);</syntaxhighlight> | <syntaxhighlight lang="java">void convert2Image(Context context, String htmlContent, PrinterHtmlListener listener);</syntaxhighlight> | ||
Convert the html content to a image, if want print, please call print api of the printer. | Convert the html content to a image, if want print, please call print api of the printer. | ||
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|} | |} | ||
=== <big>PrinterHtmlListener.onGet</big>=== | ==== <big>PrinterHtmlListener.onGet</big>==== | ||
<syntaxhighlight lang="java">void onGet(Bitmap returbitmap, int result);</syntaxhighlight> | <syntaxhighlight lang="java">void onGet(Bitmap returbitmap, int result);</syntaxhighlight> | ||
Get returned bitmap. | Get returned bitmap. | ||
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|} | |} | ||
=== <big>PrinterHtmlListener.onFinishPrinting</big>=== | ==== <big>PrinterHtmlListener.onFinishPrinting</big>==== | ||
<syntaxhighlight lang="java">void onFinishPrinting(int result);</syntaxhighlight> | <syntaxhighlight lang="java">void onFinishPrinting(int result);</syntaxhighlight> | ||
Return after print. | Return after print. | ||
Revision as of 03:12, 7 November 2018
There are two ways to print html content, if your app is using our C SDK, please use the java method in JNI API, and if using our Java SDK, please use the Java method. Please add WebView.enableSlowWholeDocumentDraw() in your APP source code, because we use android webview to print html content.
Permission
android.permission.SYSTEM_ALERT_WINDOW The app declares the permission in the manifest.
by JNI API
API Overview
PrintHtmlInterface.printHTML
void printHTML(Context context, String htmlcontent, PrinterHtmlListener listener);
Print HTML content.
| Returns | |
|---|---|
| context | Context : The activity or application context of the APP, Not null. |
| htmlcontent | String : The html content, Not null. |
| listener | PrinterHtmlListener : the callback listener to process the print result, Not null. |
PrintHtmlInterface.convert2Image
void convert2Image(Context context, String htmlContent, PrinterHtmlListener listener);
Convert the html content to a image, if want print, please call print api of the printer.
| Returns | |
|---|---|
| context | Context : The activity or application context of the APP, Not null. |
| htmlcontent | String : The html content, Not null. |
| listener | PrinterHtmlListener : the callback listener to process the print result, Not null. |
PrinterHtmlListener.onGet
void onGet(Bitmap returbitmap, int result);
Get returned bitmap.
| Returns | |
|---|---|
| returbitmap | Bitmap : The returned bitmap. |
| result | int: The result of get image, "2:" BITMAP_ERROR, "3:" BITMAP_SUCCESS. |
PrinterHtmlListener.onFinishPrinting
void onFinishPrinting(int result);
Return after print.
| Returns | |
|---|---|
| result | int : The result of the print,"0:" PRINT_ERROR, "1:" PRINT_SUCCESS,"2:" BITMAP_ERROR, "3:" BITMAP_SUCCESS,"4:" DEVICE_NOT_OPEN. |
by Java API
Please refer to java API Spec. in our demo from SDK folder \cloudpos_SDK\device\java\sample\APIDemoForAar\app\src\main\java\com\wizarpos\apidemo\action\PrinterAction.java, there is a printHtml method, you can call like it.