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README.md

Kaazing Android WebSocket Echo Tutorial

This Android app communicates with a remote Echo service hosted by Kaazing WebSocket Gateway. The app sends and receives text messages with the Echo service over WebSocket.

Minimum Requirements for Running or Building

  • Java 1.8
  • Gradle 2.10 or higher
  • Android Studio 2.10 or higher
  • Android SDK 4.4 or higher

Steps for Building and Running the Project

  • Build the application using Android Studio
    • Open the project in Android Studio by navigating to the project directory
    • Build the project by selecting Build/Rebuild Project
  • Run the application in Android Simulator
    • Create an Android Virtual Device (AVD) for API level 19 (KitKat) or higher. For more information refer to Create and Manage Virtual Devices
    • Run the application from Android Studio by selecting Run/Run Project. Refer to Running Your App for more information.

After installing Android Studio, update the following files with the Android SDK path or version (if necessary):

  • local.properties
  • project.properties
  • AndroidManifest.xml
  • app/build.gradle

In you experience the error Could not find or load main class org.gradle.wrapper.GradleWrapperMain, add a wrapper in the build.gradle file:

task wrapper(type: Wrapper) {
gradleVersion = <gradle-version-installed>
}

Interact with Kaazing Android WebSocket Client API

Documentation that explains how to create Kaazing Android WebSocket apps from scratch can be found here.

API Documentation

API Documentation for Kaazing Java WebSocket Client library is available:

, '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" + '

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README.md
Kaazing Android WebSocket Echo Tutorial
This Android app communicates with a remote Echo service hosted by Kaazing WebSocket Gateway. The app sends and receives text messages with the Echo service over WebSocket.
Minimum Requirements for Running or Building
  • Java 1.8
  • Gradle 2.10 or higher
  • Android Studio 2.10 or higher
  • Android SDK 4.4 or higher
Steps for Building and Running the Project
  • Build the application using Android Studio

    • Open the project in Android Studio by navigating to the project directory
    • Build the project by selecting Build/Rebuild Project
  • Run the application in Android Simulator

    • Create an Android Virtual Device (AVD) for API level 19 (KitKat) or higher. For more information refer to Create and Manage Virtual Devices
    • Run the application from Android Studio by selecting Run/Run Project. Refer to Running Your App for more information.
After installing Android Studio, update the following files with the Android SDK path or version (if necessary):
  • local.properties
  • project.properties
  • AndroidManifest.xml
  • app/build.gradle
In you experience the error Could not find or load main class org.gradle.wrapper.GradleWrapperMain, add a wrapper in the build.gradle file:
task wrapper(type: Wrapper) {
gradleVersion = <gradle-version-installed>
}

Interact with Kaazing Android WebSocket Client API
Documentation that explains how to create Kaazing Android WebSocket apps from scratch can be found here.
API Documentation
API Documentation for Kaazing Java WebSocket Client library is available:

, '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('^' + ".*" + '

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README.md
Kaazing Android WebSocket Echo Tutorial
This Android app communicates with a remote Echo service hosted by Kaazing WebSocket Gateway. The app sends and receives text messages with the Echo service over WebSocket.
Minimum Requirements for Running or Building
  • Java 1.8
  • Gradle 2.10 or higher
  • Android Studio 2.10 or higher
  • Android SDK 4.4 or higher
Steps for Building and Running the Project
  • Build the application using Android Studio

    • Open the project in Android Studio by navigating to the project directory
    • Build the project by selecting Build/Rebuild Project
  • Run the application in Android Simulator

    • Create an Android Virtual Device (AVD) for API level 19 (KitKat) or higher. For more information refer to Create and Manage Virtual Devices
    • Run the application from Android Studio by selecting Run/Run Project. Refer to Running Your App for more information.
After installing Android Studio, update the following files with the Android SDK path or version (if necessary):
  • local.properties
  • project.properties
  • AndroidManifest.xml
  • app/build.gradle
In you experience the error Could not find or load main class org.gradle.wrapper.GradleWrapperMain, add a wrapper in the build.gradle file:
task wrapper(type: Wrapper) {
gradleVersion = <gradle-version-installed>
}

Interact with Kaazing Android WebSocket Client API
Documentation that explains how to create Kaazing Android WebSocket apps from scratch can be found here.
API Documentation
API Documentation for Kaazing Java WebSocket Client library is available:

, '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('^' + ".*" + '

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ws
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ws
README.md
Kaazing Android WebSocket Echo Tutorial
This Android app communicates with a remote Echo service hosted by Kaazing WebSocket Gateway. The app sends and receives text messages with the Echo service over WebSocket.
Minimum Requirements for Running or Building
  • Java 1.8
  • Gradle 2.10 or higher
  • Android Studio 2.10 or higher
  • Android SDK 4.4 or higher
Steps for Building and Running the Project
  • Build the application using Android Studio

    • Open the project in Android Studio by navigating to the project directory
    • Build the project by selecting Build/Rebuild Project
  • Run the application in Android Simulator

    • Create an Android Virtual Device (AVD) for API level 19 (KitKat) or higher. For more information refer to Create and Manage Virtual Devices
    • Run the application from Android Studio by selecting Run/Run Project. Refer to Running Your App for more information.
After installing Android Studio, update the following files with the Android SDK path or version (if necessary):
  • local.properties
  • project.properties
  • AndroidManifest.xml
  • app/build.gradle
In you experience the error Could not find or load main class org.gradle.wrapper.GradleWrapperMain, add a wrapper in the build.gradle file:
task wrapper(type: Wrapper) {
gradleVersion = <gradle-version-installed>
}

Interact with Kaazing Android WebSocket Client API
Documentation that explains how to create Kaazing Android WebSocket apps from scratch can be found here.
API Documentation
API Documentation for Kaazing Java WebSocket Client library is available:

, '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
ws
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README.md
Kaazing Android WebSocket Echo Tutorial
This Android app communicates with a remote Echo service hosted by Kaazing WebSocket Gateway. The app sends and receives text messages with the Echo service over WebSocket.
Minimum Requirements for Running or Building
  • Java 1.8
  • Gradle 2.10 or higher
  • Android Studio 2.10 or higher
  • Android SDK 4.4 or higher
Steps for Building and Running the Project
  • Build the application using Android Studio

    • Open the project in Android Studio by navigating to the project directory
    • Build the project by selecting Build/Rebuild Project
  • Run the application in Android Simulator

    • Create an Android Virtual Device (AVD) for API level 19 (KitKat) or higher. For more information refer to Create and Manage Virtual Devices
    • Run the application from Android Studio by selecting Run/Run Project. Refer to Running Your App for more information.
After installing Android Studio, update the following files with the Android SDK path or version (if necessary):
  • local.properties
  • project.properties
  • AndroidManifest.xml
  • app/build.gradle
In you experience the error Could not find or load main class org.gradle.wrapper.GradleWrapperMain, add a wrapper in the build.gradle file:
task wrapper(type: Wrapper) {
gradleVersion = <gradle-version-installed>
}

Interact with Kaazing Android WebSocket Client API
Documentation that explains how to create Kaazing Android WebSocket apps from scratch can be found here.
API Documentation
API Documentation for Kaazing Java WebSocket Client library is available:

, '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
ws
Directory actions
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Latest commit
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ws
README.md
Kaazing Android WebSocket Echo Tutorial
This Android app communicates with a remote Echo service hosted by Kaazing WebSocket Gateway. The app sends and receives text messages with the Echo service over WebSocket.
Minimum Requirements for Running or Building
  • Java 1.8
  • Gradle 2.10 or higher
  • Android Studio 2.10 or higher
  • Android SDK 4.4 or higher
Steps for Building and Running the Project
  • Build the application using Android Studio

    • Open the project in Android Studio by navigating to the project directory
    • Build the project by selecting Build/Rebuild Project
  • Run the application in Android Simulator

    • Create an Android Virtual Device (AVD) for API level 19 (KitKat) or higher. For more information refer to Create and Manage Virtual Devices
    • Run the application from Android Studio by selecting Run/Run Project. Refer to Running Your App for more information.
After installing Android Studio, update the following files with the Android SDK path or version (if necessary):
  • local.properties
  • project.properties
  • AndroidManifest.xml
  • app/build.gradle
In you experience the error Could not find or load main class org.gradle.wrapper.GradleWrapperMain, add a wrapper in the build.gradle file:
task wrapper(type: Wrapper) {
gradleVersion = <gradle-version-installed>
}

Interact with Kaazing Android WebSocket Client API
Documentation that explains how to create Kaazing Android WebSocket apps from scratch can be found here.
API Documentation
API Documentation for Kaazing Java WebSocket Client library is available:

, '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
ws
Directory actions
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README.md
Kaazing Android WebSocket Echo Tutorial
This Android app communicates with a remote Echo service hosted by Kaazing WebSocket Gateway. The app sends and receives text messages with the Echo service over WebSocket.
Minimum Requirements for Running or Building
  • Java 1.8
  • Gradle 2.10 or higher
  • Android Studio 2.10 or higher
  • Android SDK 4.4 or higher
Steps for Building and Running the Project
  • Build the application using Android Studio

    • Open the project in Android Studio by navigating to the project directory
    • Build the project by selecting Build/Rebuild Project
  • Run the application in Android Simulator

    • Create an Android Virtual Device (AVD) for API level 19 (KitKat) or higher. For more information refer to Create and Manage Virtual Devices
    • Run the application from Android Studio by selecting Run/Run Project. Refer to Running Your App for more information.
After installing Android Studio, update the following files with the Android SDK path or version (if necessary):
  • local.properties
  • project.properties
  • AndroidManifest.xml
  • app/build.gradle
In you experience the error Could not find or load main class org.gradle.wrapper.GradleWrapperMain, add a wrapper in the build.gradle file:
task wrapper(type: Wrapper) {
gradleVersion = <gradle-version-installed>
}

Interact with Kaazing Android WebSocket Client API
Documentation that explains how to create Kaazing Android WebSocket apps from scratch can be found here.
API Documentation
API Documentation for Kaazing Java WebSocket Client library is available:

, '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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README.md
Kaazing Android WebSocket Echo Tutorial
This Android app communicates with a remote Echo service hosted by Kaazing WebSocket Gateway. The app sends and receives text messages with the Echo service over WebSocket.
Minimum Requirements for Running or Building
  • Java 1.8
  • Gradle 2.10 or higher
  • Android Studio 2.10 or higher
  • Android SDK 4.4 or higher
Steps for Building and Running the Project
  • Build the application using Android Studio

    • Open the project in Android Studio by navigating to the project directory
    • Build the project by selecting Build/Rebuild Project
  • Run the application in Android Simulator

    • Create an Android Virtual Device (AVD) for API level 19 (KitKat) or higher. For more information refer to Create and Manage Virtual Devices
    • Run the application from Android Studio by selecting Run/Run Project. Refer to Running Your App for more information.
After installing Android Studio, update the following files with the Android SDK path or version (if necessary):
  • local.properties
  • project.properties
  • AndroidManifest.xml
  • app/build.gradle
In you experience the error Could not find or load main class org.gradle.wrapper.GradleWrapperMain, add a wrapper in the build.gradle file:
task wrapper(type: Wrapper) {
gradleVersion = <gradle-version-installed>
}

Interact with Kaazing Android WebSocket Client API
Documentation that explains how to create Kaazing Android WebSocket apps from scratch can be found here.
API Documentation
API Documentation for Kaazing Java WebSocket Client library is available: