working of logo on top

.idea/.name

@@ -0,0 +1 @@
+Lifeline-Test2

.idea/compiler.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="CompilerConfiguration">
+    <bytecodeTargetLevel target="21" />
+  </component>
+</project>

.idea/deploymentTargetSelector.xml

@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="deploymentTargetSelector">
+    <selectionStates>
+      <SelectionState runConfigName="app">
+        <option name="selectionMode" value="DROPDOWN" />
+      </SelectionState>
+    </selectionStates>
+  </component>
+</project>

.idea/deviceManager.xml

@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="DeviceTable">
+    <option name="columnSorters">
+      <list>
+        <ColumnSorterState>
+          <option name="column" value="Name" />
+          <option name="order" value="ASCENDING" />
+        </ColumnSorterState>
+      </list>
+    </option>
+  </component>
+</project>

.idea/gradle.xml

@@ -7,6 +7,12 @@
         <option name="testRunner" value="CHOOSE_PER_TEST" />
         <option name="externalProjectPath" value="$PROJECT_DIR$" />
         <option name="gradleJvm" value="#GRADLE_LOCAL_JAVA_HOME" />
+        <option name="modules">
+          <set>
+            <option value="$PROJECT_DIR$" />
+            <option value="$PROJECT_DIR$/app" />
+          </set>
+        </option>
       </GradleProjectSettings>
     </option>
   </component>

.idea/misc.xml

@@ -1,7 +1,6 @@
-<?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
   <component name="ExternalStorageConfigurationManager" enabled="true" />
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_24" default="true" project-jdk-name="24" project-jdk-type="JavaSDK">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_21" default="true" project-jdk-name="jbr-21" project-jdk-type="JavaSDK">
     <output url="file://$PROJECT_DIR$/out" />
   </component>
 </project>

app/build.gradle

@@ -26,6 +26,11 @@ android {
         sourceCompatibility JavaVersion.VERSION_11
         targetCompatibility JavaVersion.VERSION_11
     }
+
+    packagingOptions {
+        pickFirst 'META-INF/LICENSE.md'
+        pickFirst 'META-INF/NOTICE.md'
+    }
 }
 
 dependencies {
@@ -34,6 +39,7 @@ dependencies {
     implementation libs.material
     implementation libs.activity
     implementation libs.constraintlayout
+    implementation libs.databinding.compiler
     testImplementation libs.junit
     androidTestImplementation libs.ext.junit
     androidTestImplementation libs.espresso.core

app/src/main/AndroidManifest.xml

@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:tools="http://schemas.android.com/tools">
-
+    <uses-permission android:name="android.permission.INTERNET"/>
     <application
         android:allowBackup="true"
         android:dataExtractionRules="@xml/data_extraction_rules"
@@ -10,6 +10,9 @@
         android:label="@string/app_name"
         android:roundIcon="@mipmap/ic_launcher_round"
         android:supportsRtl="true"
+        android:usesCleartextTraffic="true"
+        android:networkSecurityConfig="@xml/network_security_config"
+
         android:theme="@style/Theme.LifelineTest2">
         <activity
             android:name=".MainActivity"

app/src/main/java/com/example/lifeline_test2/ESCPOS_Printer.java

@@ -5,13 +5,22 @@ import android.app.PendingIntent;
 import android.content.BroadcastReceiver;
 import android.content.Context;
 import android.content.Intent;
+import android.content.res.Resources;
+import android.graphics.Bitmap;
+import android.graphics.Canvas;
+import android.graphics.drawable.BitmapDrawable;
+import android.graphics.drawable.Drawable;
 import android.hardware.usb.UsbConstants;
 import android.hardware.usb.UsbDevice;
 import android.hardware.usb.UsbDeviceConnection;
 import android.hardware.usb.UsbEndpoint;
 import android.hardware.usb.UsbInterface;
 import android.hardware.usb.UsbManager;
+import android.util.DisplayMetrics;
 
+import androidx.appcompat.content.res.AppCompatResources;
+
+import java.io.ByteArrayOutputStream;
 import java.nio.charset.Charset;
 import java.util.HashMap;
 import java.util.Iterator;
@@ -113,6 +122,111 @@ public class ESCPOS_Printer {
         send(new byte[]{0x1B, 0x40});
     }
 
+    public void logo(Drawable drawable){
+        byte[] logoBytes = drawableToEscPosBytes(drawable, 324, 200);
+        send(logoBytes);
+    }
+
+    private byte[] drawableToEscPosBytes(Drawable drawable, int newWidth, int newHeight) {
+        // Convert drawable to bitmap
+        Bitmap bitmap = drawableToBitmap(drawable);
+
+        // Resize if requested
+        if (newWidth > 0 && newHeight > 0) {
+            bitmap = Bitmap.createScaledBitmap(bitmap, newWidth, newHeight, true);
+        }
+
+        // Convert to monochrome bitmap
+        bitmap = toMonochrome(bitmap);
+
+        // Convert bitmap to ESC/POS image bytes
+        return bitmapToEscPosBytes(bitmap, true); // true = center align
+    }
+
+    private Bitmap drawableToBitmap(Drawable drawable) {
+        if (drawable instanceof BitmapDrawable) {
+            return ((BitmapDrawable) drawable).getBitmap();
+        }
+
+        Bitmap bitmap = Bitmap.createBitmap(
+                drawable.getIntrinsicWidth(),
+                drawable.getIntrinsicHeight(),
+                Bitmap.Config.ARGB_8888
+        );
+        Canvas canvas = new Canvas(bitmap);
+        drawable.setBounds(0, 0, canvas.getWidth(), canvas.getHeight());
+        drawable.draw(canvas);
+        return bitmap;
+    }
+
+    private Bitmap toMonochrome(Bitmap bitmap) {
+        int width = bitmap.getWidth();
+        int height = bitmap.getHeight();
+        Bitmap monoBitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
+
+        for (int y = 0; y < height; y++) {
+            for (int x = 0; x < width; x++) {
+                int pixel = bitmap.getPixel(x, y);
+                int gray = (int) (0.3 * ((pixel >> 16) & 0xff) +
+                        0.59 * ((pixel >> 8) & 0xff) +
+                        0.11 * (pixel & 0xff));
+                if (gray < 128) {
+                    monoBitmap.setPixel(x, y, 0xFF000000); // black
+                } else {
+                    monoBitmap.setPixel(x, y, 0xFFFFFFFF); // white
+                }
+            }
+        }
+        return monoBitmap;
+    }
+    private byte[] bitmapToEscPosBytes(Bitmap bitmap, boolean center) {
+        int width = bitmap.getWidth();
+        int height = bitmap.getHeight();
+
+        ByteArrayOutputStream baos = new ByteArrayOutputStream();
+
+        // Alignment
+        if (center) {
+            baos.write(0x1B); baos.write('a'); baos.write(1); // ESC a 1 -> center
+        } else {
+            baos.write(0x1B); baos.write('a'); baos.write(0); // ESC a 0 -> left
+        }
+
+        // Set line spacing to 24 dots
+        baos.write(0x1B); baos.write(0x33); baos.write(24);
+
+        for (int y = 0; y < height; y += 24) {
+            baos.write(0x1B); baos.write('*'); baos.write(33); // 24-dot double-density
+            baos.write(width & 0xFF); // width low byte
+            baos.write((width >> 8) & 0xFF); // width high byte
+
+            for (int x = 0; x < width; x++) {
+                for (int k = 0; k < 3; k++) {
+                    byte slice = 0;
+                    for (int b = 0; b < 8; b++) {
+                        int yPos = y + k * 8 + b;
+                        int pixelColor = 0xFFFFFF;
+                        if (yPos < height) {
+                            pixelColor = bitmap.getPixel(x, yPos);
+                        }
+                        if (pixelColor == 0xFF000000) { // black pixel
+                            slice |= (1 << (7 - b));
+                        }
+                    }
+                    baos.write(slice);
+                }
+            }
+            baos.write(0x0A); // line feed
+        }
+
+        // Reset line spacing
+        baos.write(0x1B); baos.write(0x32);
+
+        return baos.toByteArray();
+    }
+
+
+
     public void feed(Integer count){
         for(var i=0; i<=count; i++){
             send(new byte[]{0x0A});
@@ -137,7 +251,6 @@ public class ESCPOS_Printer {
     private void send(byte[] data) {
         connection.bulkTransfer(endpointOut, data, data.length, 1000);
     }
-
     private byte[] hexStringToBytes(String hex) {
         int len = hex.length();
         byte[] data = new byte[len / 2];

app/src/main/java/com/example/lifeline_test2/MainActivity.java

@@ -13,11 +13,14 @@ import android.hardware.usb.UsbInterface;
 import android.hardware.usb.UsbManager;
 import android.os.Bundle;
 import android.util.Log;
+import android.webkit.CookieManager;
 import android.webkit.JavascriptInterface;
 import android.webkit.WebSettings;
 import android.webkit.WebView;
+import android.webkit.WebViewClient;
 
 import androidx.appcompat.app.AppCompatActivity;
+import androidx.appcompat.content.res.AppCompatResources;
 
 import java.nio.charset.Charset;
 import java.util.HashMap;
@@ -49,23 +52,49 @@ public class MainActivity extends AppCompatActivity {
         }
     };
 
-    @Override
+//    @Override
-    protected void onCreate(Bundle savedInstanceState) {
+//    protected void onCreate(Bundle savedInstanceState) {
-        super.onCreate(savedInstanceState);
+//        super.onCreate(savedInstanceState);
+//
+//        usbManager = (UsbManager) getSystemService(Context.USB_SERVICE);
+//
+//        registerReceiver(usbReceiver, new IntentFilter(ACTION_USB_PERMISSION), RECEIVER_NOT_EXPORTED);
+//
+//        WebView webView = new WebView(this);
+//        setContentView(webView);
+//        WebSettings webSettings = webView.getSettings();
+//        webSettings.setJavaScriptEnabled(true);
+//
+//        webView.addJavascriptInterface(new WebAppInterface(this), "AndroidPrinter");
+//        webView.loadUrl("http://192.168.0.114:8000/kioskvideo");
+////        webView.loadUrl("file:///android_asset/index.html");
+//        findUsbPrinter();
+//    }
 
-        usbManager = (UsbManager) getSystemService(Context.USB_SERVICE);
+@Override
+protected void onCreate(Bundle savedInstanceState) {
+    super.onCreate(savedInstanceState);
 
-        registerReceiver(usbReceiver, new IntentFilter(ACTION_USB_PERMISSION), RECEIVER_NOT_EXPORTED);
+    usbManager = (UsbManager) getSystemService(Context.USB_SERVICE);
 
-        WebView webView = new WebView(this);
+    registerReceiver(usbReceiver, new IntentFilter(ACTION_USB_PERMISSION), RECEIVER_NOT_EXPORTED);
-        setContentView(webView);
-        WebSettings webSettings = webView.getSettings();
-        webSettings.setJavaScriptEnabled(true);
 
-        webView.addJavascriptInterface(new WebAppInterface(this), "AndroidPrinter");
+    WebView webView = new WebView(this);
-        webView.loadUrl("file:///android_asset/index.html");
+    setContentView(webView);
-        findUsbPrinter();
+    WebSettings webSettings = webView.getSettings();
-    }
+    webSettings.setJavaScriptEnabled(true);
+    webSettings.setDomStorageEnabled(true);
+    webView.addJavascriptInterface(new WebAppInterface(this), "AndroidPrinter");
+    webView.getSettings().setMixedContentMode(WebSettings.MIXED_CONTENT_ALWAYS_ALLOW);
+    webView.setWebViewClient(new WebViewClient());
+    CookieManager.getInstance().setAcceptCookie(true);
+    CookieManager.getInstance().setAcceptThirdPartyCookies(webView,true);
+//        webView.loadUrl("http://10.23.107.10:8000/kioskvideo");
+
+    webView.loadUrl("http://192.168.0.114:8000/kioskvideo");
+    //webView.loadUrl("file:///android_asset/index.html");
+    findUsbPrinter();
+}
 
     private void findUsbPrinter(){
         // Find the first connected USB device
@@ -128,6 +157,7 @@ public class MainActivity extends AppCompatActivity {
         }
 
         ESCPOS_Printer printer = new ESCPOS_Printer(usbDeviceConnection, usbEndpoint);
+        printer.logo(AppCompatResources.getDrawable(this, R.drawable.logo));
         printer.printFormatted(text);
         printer.feed(5);
         printer.cut();

app/src/main/res/xml/network_security_config.xml

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<network-security-config>
+    <base-config cleartextTrafficPermitted="true"/>
+</network-security-config>

gradle/libs.versions.toml

@@ -7,6 +7,7 @@ appcompat = "1.7.1"
 material = "1.12.0"
 activity = "1.10.1"
 constraintlayout = "2.2.1"
+databindingCompiler = "8.12.0"
 
 [libraries]
 junit = { group = "junit", name = "junit", version.ref = "junit" }
@@ -16,6 +17,7 @@ appcompat = { group = "androidx.appcompat", name = "appcompat", version.ref = "a
 material = { group = "com.google.android.material", name = "material", version.ref = "material" }
 activity = { group = "androidx.activity", name = "activity", version.ref = "activity" }
 constraintlayout = { group = "androidx.constraintlayout", name = "constraintlayout", version.ref = "constraintlayout" }
+databinding-compiler = { group = "androidx.databinding", name = "databinding-compiler", version.ref = "databindingCompiler" }
 
 [plugins]
 android-application = { id = "com.android.application", version.ref = "agp" }