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QRScanner

CN1Lib for using ZBar scanning in Android apps.

The built in Codename One implementation of CodeScanner works well on iOS but has some issues on Android.
This module works around those issues by embedding ZBar into the Android build.

This removes the reliance on an external scanning app to be installed and seems to scan faster.

It does add several megabytes to the final .apk file size.

How to use

Installation

Maven Projects

Add the following dependency to your project's common/pom.xml file:

<dependency>
<groupId>com.codenameone</groupId>
<artifactId>qrscanner-lib</artifactId>
<version>2.0.2</version>
<type>pom</type>
</dependency>

If you want to hack on the sources, and use a modified version, you can just clone this repository and run mvn install to install it into your local Maven repository.

Ant Projects

Use Codename One Preferences to install the QRScanner library.

or

Build this project from source, then find the .cn1lib file in the common/target directory, and copy it to the "libs" directory of your Codename One application project, and select "Refresh Libs".

Example Code

Basically use QRScanner instead of CodeScanner.

QRScanner.scanQRCode(newScanResult() {
publicvoidscanCompleted(Stringcontents, StringformatName, byte[] rawBytes) {
Dialog.show("Completed", contents, "OK", null);
}
publicvoidscanCanceled() {
Dialog.show("Cancelled", "Scan Cancelled", "OK", null);
}
publicvoidscanError(interrorCode, Stringmessage) {
Dialog.show("Error", message, "OK", null);
}
});

Notice that when scanning a barcode you would need to use the scanBarCode method instead of the scanQRCode method.

Converting an existing app

It should pretty much be a drop in replacement for CodeScanner. If you need to detect if code scanning is supported on the current platform then you need to keep the original check do not change this line to QRScanner:

if (CodeScanner.isSupported()) {
QRScanner.scanQRCode(myScanResult);
} else {
Dialog.show("Not Supported","QR Code Scanning is not available on this device","OK",null);
}

Configuring Types to Scan For

By default, the scanner will look for bar codes of type EAN13 in barcode scanning mode, and QR_CODE in QR code scanning mode.
If you want to detect ALL supported code types, you can call the following before making the call to scan the code:

Display.getInstance().setProperty("scanAllCodeTypes", "true");

Building from Source

  1. Clone this repository
  2. Set JAVA_HOME to a JDK 1.8 or JDK 11 installation
  3. mvn install

About

CN1Lib for using ZBar scanning in Android apps.

Resources

Readme
MIT license
Activity
Custom properties

Stars

1 star

Watchers

0 watching

Forks

1 fork
Report repository

Releases

Packages

Used by

Contributors

Languages

, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Add copy buttons to all 
 blocks\n(function() {\n function addCopyButtons() {\n document.querySelectorAll('pre code').forEach(function(codeBlock) {\n if (codeBlock.parentElement.hasAttribute('data-copy-added')) return;\n codeBlock.parentElement.setAttribute('data-copy-added', 'true');\n \n var btn = document.createElement('button');\n btn.textContent = 'Copy';\n btn.style.cssText = 'position:absolute;top:4px;right:4px;padding:2px 8px;font-size:11px;background:#4ecdc4;border:none;border-radius:4px;color:#1a1a2e;cursor:pointer;opacity:0.7;transition:opacity 0.2s;';\n btn.onmouseover = function() { this.style.opacity = '1'; };\n btn.onmouseout = function() { this.style.opacity = '0.7'; };\n btn.onclick = function() {\n navigator.clipboard.writeText(codeBlock.textContent).then(function() {\n btn.textContent = 'Copied!';\n setTimeout(function() { btn.textContent = 'Copy'; }, 1500);\n });\n };\n codeBlock.parentElement.style.position = 'relative';\n codeBlock.parentElement.appendChild(btn);\n });\n }\n \n addCopyButtons();\n \n // Re-run on dynamic content\n var observer = new MutationObserver(addCopyButtons);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Add Copy Buttons to Code Blocks");
}
} catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
})();
(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '

Skip to content
BranchesTags
Repository files navigation
QRScanner
CN1Lib for using ZBar scanning in Android apps.
The built in Codename One implementation of CodeScanner works well on iOS but has some issues on Android.

This module works around those issues by embedding ZBar into the Android build.
This removes the reliance on an external scanning app to be installed and seems to scan faster.
It does add several megabytes to the final .apk file size.
How to use
Installation
Maven Projects
Add the following dependency to your project's common/pom.xml file:
<dependency>
<groupId>com.codenameone</groupId>
<artifactId>qrscanner-lib</artifactId>
<version>2.0.2</version>
<type>pom</type>
</dependency>
If you want to hack on the sources, and use a modified version, you can just clone this repository and run mvn install to install it into your local Maven repository.
Ant Projects
Use Codename One Preferences to install the QRScanner library.
or
Build this project from source, then find the .cn1lib file in the common/target directory, and copy it to the "libs" directory of your Codename One application project, and select "Refresh Libs".
Example Code
Basically use QRScanner instead of CodeScanner.
QRScanner.scanQRCode(newScanResult() {
publicvoidscanCompleted(Stringcontents, StringformatName, byte[] rawBytes) {
Dialog.show("Completed", contents, "OK", null);
}
publicvoidscanCanceled() {
Dialog.show("Cancelled", "Scan Cancelled", "OK", null);
}
publicvoidscanError(interrorCode, Stringmessage) {
Dialog.show("Error", message, "OK", null);
}
});
Notice that when scanning a barcode you would need to use the scanBarCode method instead of the scanQRCode method.
Converting an existing app
It should pretty much be a drop in replacement for CodeScanner. If you need to detect if code scanning is supported on the current platform then you need to keep the original check
do not change this line to QRScanner:
if (CodeScanner.isSupported()) {
QRScanner.scanQRCode(myScanResult);
} else {
Dialog.show("Not Supported","QR Code Scanning is not available on this device","OK",null);
}
Configuring Types to Scan For
By default, the scanner will look for bar codes of type EAN13 in barcode scanning mode, and QR_CODE in QR code scanning mode.

If you want to detect ALL supported code types, you can call the following before making the call to scan the code:
Display.getInstance().setProperty("scanAllCodeTypes", "true");
Building from Source
  1. Clone this repository
  2. Set JAVA_HOME to a JDK 1.8 or JDK 11 installation
  3. mvn install
About
CN1Lib for using ZBar scanning in Android apps.
Resources
Readme
MIT license
Activity
Custom properties
Stars
1 star
Watchers
0 watching
Forks
1 fork
Report repository
Releases
Packages
Used by
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Force GitHub README to respect dark mode\n(function() {\n var style = document.createElement('style');\n style.textContent = '\n .markdown-body {\n color-scheme: dark light;\n }\n .markdown-body pre { background: #161b22 !important; }\n .markdown-body code { background: rgba(110, 118, 129, 0.4) !important; }\n .markdown-body table th, .markdown-body table td { border-color: #30363d !important; }\n .markdown-body img { background: #0d1117; }\n .markdown-body blockquote { border-left-color: #8b949e; }\n .markdown-body hr { border-color: #30363d; }\n ';\n document.head.appendChild(style);\n})();", "GitHub Dark Mode README Fix");
}
} catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
BranchesTags
Repository files navigation
QRScanner
CN1Lib for using ZBar scanning in Android apps.
The built in Codename One implementation of CodeScanner works well on iOS but has some issues on Android.

This module works around those issues by embedding ZBar into the Android build.
This removes the reliance on an external scanning app to be installed and seems to scan faster.
It does add several megabytes to the final .apk file size.
How to use
Installation
Maven Projects
Add the following dependency to your project's common/pom.xml file:
<dependency>
<groupId>com.codenameone</groupId>
<artifactId>qrscanner-lib</artifactId>
<version>2.0.2</version>
<type>pom</type>
</dependency>
If you want to hack on the sources, and use a modified version, you can just clone this repository and run mvn install to install it into your local Maven repository.
Ant Projects
Use Codename One Preferences to install the QRScanner library.
or
Build this project from source, then find the .cn1lib file in the common/target directory, and copy it to the "libs" directory of your Codename One application project, and select "Refresh Libs".
Example Code
Basically use QRScanner instead of CodeScanner.
QRScanner.scanQRCode(newScanResult() {
publicvoidscanCompleted(Stringcontents, StringformatName, byte[] rawBytes) {
Dialog.show("Completed", contents, "OK", null);
}
publicvoidscanCanceled() {
Dialog.show("Cancelled", "Scan Cancelled", "OK", null);
}
publicvoidscanError(interrorCode, Stringmessage) {
Dialog.show("Error", message, "OK", null);
}
});
Notice that when scanning a barcode you would need to use the scanBarCode method instead of the scanQRCode method.
Converting an existing app
It should pretty much be a drop in replacement for CodeScanner. If you need to detect if code scanning is supported on the current platform then you need to keep the original check
do not change this line to QRScanner:
if (CodeScanner.isSupported()) {
QRScanner.scanQRCode(myScanResult);
} else {
Dialog.show("Not Supported","QR Code Scanning is not available on this device","OK",null);
}
Configuring Types to Scan For
By default, the scanner will look for bar codes of type EAN13 in barcode scanning mode, and QR_CODE in QR code scanning mode.

If you want to detect ALL supported code types, you can call the following before making the call to scan the code:
Display.getInstance().setProperty("scanAllCodeTypes", "true");
Building from Source
  1. Clone this repository
  2. Set JAVA_HOME to a JDK 1.8 or JDK 11 installation
  3. mvn install
About
CN1Lib for using ZBar scanning in Android apps.
Resources
Readme
MIT license
Activity
Custom properties
Stars
1 star
Watchers
0 watching
Forks
1 fork
Report repository
Releases
Packages
Used by
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Highlight search terms from Google/DuckDuckGo/Bing referrer\n(function() {\n var ref = document.referrer;\n var terms = [];\n \n if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {\n var url = new URL(ref);\n var q = url.searchParams.get('q') || url.searchParams.get('p');\n if (q) {\n terms = q.split(/\\s+/).filter(function(t) { return t.length > 2; });\n }\n }\n \n if (terms.length === 0) return;\n \n var style = document.createElement('style');\n style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';\n document.head.appendChild(style);\n \n function highlight(node) {\n if (node.nodeType === 3) { // text node\n var text = node.textContent;\n var found = false;\n terms.forEach(function(term) {\n var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\\]\\\\]/g, '\\\\') + ')', 'gi');\n if (regex.test(text)) {\n found = true;\n var frag = document.createDocumentFragment();\n var parts = text.split(regex);\n parts.forEach(function(part, i) {\n if (i % 2 === 0) {\n frag.appendChild(document.createTextNode(part));\n } else {\n var span = document.createElement('span');\n span.className = 'userscript-highlight';\n span.textContent = part;\n frag.appendChild(span);\n }\n });\n node.parentNode.replaceChild(frag, node);\n }\n });\n } else if (node.nodeType === 1 && node.childNodes) { // element\n var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];\n if (!skipTags.includes(node.tagName)) {\n Array.from(node.childNodes).forEach(highlight);\n }\n }\n }\n \n highlight(document.body);\n \n // Re-highlight on dynamic content\n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1 || node.nodeType === 3) highlight(node);\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Highlight Search Terms");
}
} catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
BranchesTags
Repository files navigation
QRScanner
CN1Lib for using ZBar scanning in Android apps.
The built in Codename One implementation of CodeScanner works well on iOS but has some issues on Android.

This module works around those issues by embedding ZBar into the Android build.
This removes the reliance on an external scanning app to be installed and seems to scan faster.
It does add several megabytes to the final .apk file size.
How to use
Installation
Maven Projects
Add the following dependency to your project's common/pom.xml file:
<dependency>
<groupId>com.codenameone</groupId>
<artifactId>qrscanner-lib</artifactId>
<version>2.0.2</version>
<type>pom</type>
</dependency>
If you want to hack on the sources, and use a modified version, you can just clone this repository and run mvn install to install it into your local Maven repository.
Ant Projects
Use Codename One Preferences to install the QRScanner library.
or
Build this project from source, then find the .cn1lib file in the common/target directory, and copy it to the "libs" directory of your Codename One application project, and select "Refresh Libs".
Example Code
Basically use QRScanner instead of CodeScanner.
QRScanner.scanQRCode(newScanResult() {
publicvoidscanCompleted(Stringcontents, StringformatName, byte[] rawBytes) {
Dialog.show("Completed", contents, "OK", null);
}
publicvoidscanCanceled() {
Dialog.show("Cancelled", "Scan Cancelled", "OK", null);
}
publicvoidscanError(interrorCode, Stringmessage) {
Dialog.show("Error", message, "OK", null);
}
});
Notice that when scanning a barcode you would need to use the scanBarCode method instead of the scanQRCode method.
Converting an existing app
It should pretty much be a drop in replacement for CodeScanner. If you need to detect if code scanning is supported on the current platform then you need to keep the original check
do not change this line to QRScanner:
if (CodeScanner.isSupported()) {
QRScanner.scanQRCode(myScanResult);
} else {
Dialog.show("Not Supported","QR Code Scanning is not available on this device","OK",null);
}
Configuring Types to Scan For
By default, the scanner will look for bar codes of type EAN13 in barcode scanning mode, and QR_CODE in QR code scanning mode.

If you want to detect ALL supported code types, you can call the following before making the call to scan the code:
Display.getInstance().setProperty("scanAllCodeTypes", "true");
Building from Source
  1. Clone this repository
  2. Set JAVA_HOME to a JDK 1.8 or JDK 11 installation
  3. mvn install
About
CN1Lib for using ZBar scanning in Android apps.
Resources
Readme
MIT license
Activity
Custom properties
Stars
1 star
Watchers
0 watching
Forks
1 fork
Report repository
Releases
Packages
Used by
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Strip utm_, fbclid, gclid, etc. from all links on page\n(function() {\n var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',\n 'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',\n 'ref', 'ref_src', 'source', 'medium', 'campaign'];\n \n function cleanUrl(url) {\n try {\n var u = new URL(url, window.location.origin);\n var changed = false;\n trackingParams.forEach(function(p) {\n if (u.searchParams.has(p)) {\n u.searchParams.delete(p);\n changed = true;\n }\n });\n return changed ? u.toString() : url;\n } catch (e) {\n return url;\n }\n }\n \n function cleanLinks() {\n document.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n \n cleanLinks();\n \n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1) {\n if (node.tagName === 'A') cleanLinks();\n node.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Remove Tracking Parameters from Links");
}
} catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); }
})();
(function(){
try {
var __m = "youtube.com";
var __re = new RegExp('^' + "youtube\\.com" + '

Skip to content
BranchesTags
Repository files navigation
QRScanner
CN1Lib for using ZBar scanning in Android apps.
The built in Codename One implementation of CodeScanner works well on iOS but has some issues on Android.

This module works around those issues by embedding ZBar into the Android build.
This removes the reliance on an external scanning app to be installed and seems to scan faster.
It does add several megabytes to the final .apk file size.
How to use
Installation
Maven Projects
Add the following dependency to your project's common/pom.xml file:
<dependency>
<groupId>com.codenameone</groupId>
<artifactId>qrscanner-lib</artifactId>
<version>2.0.2</version>
<type>pom</type>
</dependency>
If you want to hack on the sources, and use a modified version, you can just clone this repository and run mvn install to install it into your local Maven repository.
Ant Projects
Use Codename One Preferences to install the QRScanner library.
or
Build this project from source, then find the .cn1lib file in the common/target directory, and copy it to the "libs" directory of your Codename One application project, and select "Refresh Libs".
Example Code
Basically use QRScanner instead of CodeScanner.
QRScanner.scanQRCode(newScanResult() {
publicvoidscanCompleted(Stringcontents, StringformatName, byte[] rawBytes) {
Dialog.show("Completed", contents, "OK", null);
}
publicvoidscanCanceled() {
Dialog.show("Cancelled", "Scan Cancelled", "OK", null);
}
publicvoidscanError(interrorCode, Stringmessage) {
Dialog.show("Error", message, "OK", null);
}
});
Notice that when scanning a barcode you would need to use the scanBarCode method instead of the scanQRCode method.
Converting an existing app
It should pretty much be a drop in replacement for CodeScanner. If you need to detect if code scanning is supported on the current platform then you need to keep the original check
do not change this line to QRScanner:
if (CodeScanner.isSupported()) {
QRScanner.scanQRCode(myScanResult);
} else {
Dialog.show("Not Supported","QR Code Scanning is not available on this device","OK",null);
}
Configuring Types to Scan For
By default, the scanner will look for bar codes of type EAN13 in barcode scanning mode, and QR_CODE in QR code scanning mode.

If you want to detect ALL supported code types, you can call the following before making the call to scan the code:
Display.getInstance().setProperty("scanAllCodeTypes", "true");
Building from Source
  1. Clone this repository
  2. Set JAVA_HOME to a JDK 1.8 or JDK 11 installation
  3. mvn install
About
CN1Lib for using ZBar scanning in Android apps.
Resources
Readme
MIT license
Activity
Custom properties
Stars
1 star
Watchers
0 watching
Forks
1 fork
Report repository
Releases
Packages
Used by
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Auto-enable theater mode on YouTube\n(function() {\n function tryTheater() {\n var btn = document.querySelector('button[aria-label=\"Theater mode\"], ytd-player #player button[title=\"Theater mode\"]');\n if (btn && !btn.classList.contains('activated')) {\n btn.click();\n }\n }\n \n // Try immediately\n tryTheater();\n \n // Try after navigation (SPA)\n var lastUrl = location.href;\n setInterval(function() {\n if (location.href !== lastUrl) {\n lastUrl = location.href;\n setTimeout(tryTheater, 500);\n }\n }, 1000);\n \n // Also try on player load\n var observer = new MutationObserver(tryTheater);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "YouTube Theater Mode Default");
}
} catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
BranchesTags
Repository files navigation
QRScanner
CN1Lib for using ZBar scanning in Android apps.
The built in Codename One implementation of CodeScanner works well on iOS but has some issues on Android.

This module works around those issues by embedding ZBar into the Android build.
This removes the reliance on an external scanning app to be installed and seems to scan faster.
It does add several megabytes to the final .apk file size.
How to use
Installation
Maven Projects
Add the following dependency to your project's common/pom.xml file:
<dependency>
<groupId>com.codenameone</groupId>
<artifactId>qrscanner-lib</artifactId>
<version>2.0.2</version>
<type>pom</type>
</dependency>
If you want to hack on the sources, and use a modified version, you can just clone this repository and run mvn install to install it into your local Maven repository.
Ant Projects
Use Codename One Preferences to install the QRScanner library.
or
Build this project from source, then find the .cn1lib file in the common/target directory, and copy it to the "libs" directory of your Codename One application project, and select "Refresh Libs".
Example Code
Basically use QRScanner instead of CodeScanner.
QRScanner.scanQRCode(newScanResult() {
publicvoidscanCompleted(Stringcontents, StringformatName, byte[] rawBytes) {
Dialog.show("Completed", contents, "OK", null);
}
publicvoidscanCanceled() {
Dialog.show("Cancelled", "Scan Cancelled", "OK", null);
}
publicvoidscanError(interrorCode, Stringmessage) {
Dialog.show("Error", message, "OK", null);
}
});
Notice that when scanning a barcode you would need to use the scanBarCode method instead of the scanQRCode method.
Converting an existing app
It should pretty much be a drop in replacement for CodeScanner. If you need to detect if code scanning is supported on the current platform then you need to keep the original check
do not change this line to QRScanner:
if (CodeScanner.isSupported()) {
QRScanner.scanQRCode(myScanResult);
} else {
Dialog.show("Not Supported","QR Code Scanning is not available on this device","OK",null);
}
Configuring Types to Scan For
By default, the scanner will look for bar codes of type EAN13 in barcode scanning mode, and QR_CODE in QR code scanning mode.

If you want to detect ALL supported code types, you can call the following before making the call to scan the code:
Display.getInstance().setProperty("scanAllCodeTypes", "true");
Building from Source
  1. Clone this repository
  2. Set JAVA_HOME to a JDK 1.8 or JDK 11 installation
  3. mvn install
About
CN1Lib for using ZBar scanning in Android apps.
Resources
Readme
MIT license
Activity
Custom properties
Stars
1 star
Watchers
0 watching
Forks
1 fork
Report repository
Releases
Packages
Used by
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Remove or un-stick sticky/fixed headers that block content\n(function() {\n function unstick() {\n document.querySelectorAll('header, nav, [role=\"banner\"], .header, .navbar, .sticky, .fixed-top, [style*=\"position: fixed\"], [style*=\"position:sticky\"]').forEach(function(el) {\n if (el.style.position === 'fixed' || el.style.position === 'sticky' || \n getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {\n el.style.position = 'static';\n el.style.top = 'auto';\n el.style.zIndex = 'auto';\n }\n });\n }\n \n unstick();\n \n var observer = new MutationObserver(unstick);\n observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });\n})();", "Kill Sticky Headers");
}
} catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
BranchesTags
Repository files navigation
QRScanner
CN1Lib for using ZBar scanning in Android apps.
The built in Codename One implementation of CodeScanner works well on iOS but has some issues on Android.

This module works around those issues by embedding ZBar into the Android build.
This removes the reliance on an external scanning app to be installed and seems to scan faster.
It does add several megabytes to the final .apk file size.
How to use
Installation
Maven Projects
Add the following dependency to your project's common/pom.xml file:
<dependency>
<groupId>com.codenameone</groupId>
<artifactId>qrscanner-lib</artifactId>
<version>2.0.2</version>
<type>pom</type>
</dependency>
If you want to hack on the sources, and use a modified version, you can just clone this repository and run mvn install to install it into your local Maven repository.
Ant Projects
Use Codename One Preferences to install the QRScanner library.
or
Build this project from source, then find the .cn1lib file in the common/target directory, and copy it to the "libs" directory of your Codename One application project, and select "Refresh Libs".
Example Code
Basically use QRScanner instead of CodeScanner.
QRScanner.scanQRCode(newScanResult() {
publicvoidscanCompleted(Stringcontents, StringformatName, byte[] rawBytes) {
Dialog.show("Completed", contents, "OK", null);
}
publicvoidscanCanceled() {
Dialog.show("Cancelled", "Scan Cancelled", "OK", null);
}
publicvoidscanError(interrorCode, Stringmessage) {
Dialog.show("Error", message, "OK", null);
}
});
Notice that when scanning a barcode you would need to use the scanBarCode method instead of the scanQRCode method.
Converting an existing app
It should pretty much be a drop in replacement for CodeScanner. If you need to detect if code scanning is supported on the current platform then you need to keep the original check
do not change this line to QRScanner:
if (CodeScanner.isSupported()) {
QRScanner.scanQRCode(myScanResult);
} else {
Dialog.show("Not Supported","QR Code Scanning is not available on this device","OK",null);
}
Configuring Types to Scan For
By default, the scanner will look for bar codes of type EAN13 in barcode scanning mode, and QR_CODE in QR code scanning mode.

If you want to detect ALL supported code types, you can call the following before making the call to scan the code:
Display.getInstance().setProperty("scanAllCodeTypes", "true");
Building from Source
  1. Clone this repository
  2. Set JAVA_HOME to a JDK 1.8 or JDK 11 installation
  3. mvn install
About
CN1Lib for using ZBar scanning in Android apps.
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MIT license
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, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Universal Dark Mode - works on any site\n(function() {\n var enabled = true;\n \n function applyDarkMode() {\n if (!enabled) return;\n \n // Create style element if it doesn't exist\n var style = document.getElementById('universal-dark-mode-style');\n if (!style) {\n style = document.createElement('style');\n style.id = 'universal-dark-mode-style';\n document.head.appendChild(style);\n }\n \n // Dark mode CSS - inverts colors but preserves images/video\n style.textContent = '\n /* Invert everything except media */\n html {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #1a1a2e !important;\n }\n \n /* Restore images, videos, iframes, canvas */\n img, video, iframe, canvas, svg, picture, [style*=\"background-image\"] {\n filter: invert(1) hue-rotate(180deg) !important;\n }\n \n /* Preserve specific elements that should not be inverted */\n .no-dark-mode, .no-dark-mode *,\n [data-theme=\"light\"], [data-theme=\"light\"],\n .ace_editor, .ace_editor *,\n .CodeMirror, .CodeMirror *,\n .monaco-editor, .monaco-editor *,\n .markdown-body pre, .markdown-body pre *,\n .highlight, .highlight *,\n pre code, pre code * {\n filter: none !important;\n }\n \n /* Fix common UI elements */\n .modal, .popup, .dropdown-menu, .tooltip, .popover {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #2d2d44 !important;\n border-color: #444 !important;\n }\n \n /* Scrollbars */\n ::-webkit-scrollbar { background: #1a1a2e !important; }\n ::-webkit-scrollbar-thumb { background: #444 !important; }\n ::-webkit-scrollbar-thumb:hover { background: #555 !important; }\n \n /* Selection */\n ::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ';\n }\n \n function removeDarkMode() {\n var style = document.getElementById('universal-dark-mode-style');\n if (style) style.remove();\n }\n \n // Toggle with Alt+Shift+D\n document.addEventListener('keydown', function(e) {\n if (e.altKey && e.shiftKey && e.key === 'D') {\n e.preventDefault();\n enabled = !enabled;\n if (enabled) {\n applyDarkMode();\n console.log('[Universal Dark Mode] Enabled');\n } else {\n removeDarkMode();\n console.log('[Universal Dark Mode] Disabled');\n }\n }\n });\n \n // Apply on load\n applyDarkMode();\n \n // Re-apply on dynamic content\n var observer = new MutationObserver(function(mutations) {\n if (enabled && !document.getElementById('universal-dark-mode-style')) {\n applyDarkMode();\n }\n });\n observer.observe(document.head, { childList: true });\n \n console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');\n})();", "Universal Dark Mode");
}
} catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); }
})();
})();

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QRScanner
CN1Lib for using ZBar scanning in Android apps.
The built in Codename One implementation of CodeScanner works well on iOS but has some issues on Android.

This module works around those issues by embedding ZBar into the Android build.
This removes the reliance on an external scanning app to be installed and seems to scan faster.
It does add several megabytes to the final .apk file size.
How to use
Installation
Maven Projects
Add the following dependency to your project's common/pom.xml file:
<dependency>
<groupId>com.codenameone</groupId>
<artifactId>qrscanner-lib</artifactId>
<version>2.0.2</version>
<type>pom</type>
</dependency>
If you want to hack on the sources, and use a modified version, you can just clone this repository and run mvn install to install it into your local Maven repository.
Ant Projects
Use Codename One Preferences to install the QRScanner library.
or
Build this project from source, then find the .cn1lib file in the common/target directory, and copy it to the "libs" directory of your Codename One application project, and select "Refresh Libs".
Example Code
Basically use QRScanner instead of CodeScanner.
QRScanner.scanQRCode(newScanResult() {
publicvoidscanCompleted(Stringcontents, StringformatName, byte[] rawBytes) {
Dialog.show("Completed", contents, "OK", null);
}
publicvoidscanCanceled() {
Dialog.show("Cancelled", "Scan Cancelled", "OK", null);
}
publicvoidscanError(interrorCode, Stringmessage) {
Dialog.show("Error", message, "OK", null);
}
});
Notice that when scanning a barcode you would need to use the scanBarCode method instead of the scanQRCode method.
Converting an existing app
It should pretty much be a drop in replacement for CodeScanner. If you need to detect if code scanning is supported on the current platform then you need to keep the original check
do not change this line to QRScanner:
if (CodeScanner.isSupported()) {
QRScanner.scanQRCode(myScanResult);
} else {
Dialog.show("Not Supported","QR Code Scanning is not available on this device","OK",null);
}
Configuring Types to Scan For
By default, the scanner will look for bar codes of type EAN13 in barcode scanning mode, and QR_CODE in QR code scanning mode.

If you want to detect ALL supported code types, you can call the following before making the call to scan the code:
Display.getInstance().setProperty("scanAllCodeTypes", "true");
Building from Source
  1. Clone this repository
  2. Set JAVA_HOME to a JDK 1.8 or JDK 11 installation
  3. mvn install
About
CN1Lib for using ZBar scanning in Android apps.
Resources
Readme
MIT license
Activity
Custom properties
Stars
1 star
Watchers
0 watching
Forks
1 fork
Report repository
Releases
Packages
Used by
Contributors
Languages