code update

framework/QmsPluginFramework/QmsPluginFramework/QmsPluginAssets.xcassets/Overlay.imageset/Contents.json → framework/QmsPluginFramework/Images.xcassets/img_overlay.imageset/Contents.json

 {
   "images" : [
     {
-      "filename" : "overlay.png",
+      "filename" : "img_overlay_projdashboard3x.png",
       "idiom" : "universal",
       "scale" : "1x"
     },

framework/QmsPluginFramework/Images.xcassets/img_placeholder.imageset/Contents.json

+{
+  "images" : [
+    {
+      "filename" : "image_placeholder.png",
+      "idiom" : "universal",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "universal",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "universal",
+      "scale" : "3x"
+    }
+  ],
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  }
+}

framework/QmsPluginFramework/QmsPluginFramework.xcodeproj/project.pbxproj

@@ -19,6 +19,7 @@
 		2FC779BD2F0E33410002A1D4 /* MobileCoreServices.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 2FC779BC2F0E33410002A1D4 /* MobileCoreServices.framework */; };
 		2FD1557B2ECAC5CC00233981 /* WebKit.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 2FD1557A2ECAC5CC00233981 /* WebKit.framework */; };
 		2FD9A1AE2EF0FA7100A7B53E /* Network.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 2FD9A0B72EF0E85B00A7B53E /* Network.framework */; };
+		2FDE729C2F15C48100C471A0 /* Images.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 2FDE729B2F15C48100C471A0 /* Images.xcassets */; };
 /* End PBXBuildFile section */
 
 /* Begin PBXContainerItemProxy section */
@@ -60,6 +61,7 @@
 		2FD027B02EEFD25100CF5C33 /* Network.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = Network.framework; path = Platforms/MacOSX.platform/Developer/SDKs/MacOSX26.1.sdk/System/Library/Frameworks/Network.framework; sourceTree = DEVELOPER_DIR; };
 		2FD1557A2ECAC5CC00233981 /* WebKit.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = WebKit.framework; path = Platforms/MacOSX.platform/Developer/SDKs/MacOSX26.1.sdk/System/iOSSupport/System/Library/PrivateFrameworks/WebKit.framework; sourceTree = DEVELOPER_DIR; };
 		2FD9A0B72EF0E85B00A7B53E /* Network.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = Network.framework; path = System/Library/Frameworks/Network.framework; sourceTree = SDKROOT; };
+		2FDE729B2F15C48100C471A0 /* Images.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = Images.xcassets; sourceTree = "<group>"; };
 /* End PBXFileReference section */
 
 /* Begin PBXFileSystemSynchronizedBuildFileExceptionSet section */
@@ -134,6 +136,7 @@
 		2F96475B2E86307D002CC7CB = {
 			isa = PBXGroup;
 			children = (
+				2FDE729B2F15C48100C471A0 /* Images.xcassets */,
 				2F9647672E86307D002CC7CB /* QmsPluginFramework */,
 				2FC779AA2F0E1C310002A1D4 /* testApp */,
 				2FAEF0982E8B7BC80086EDA3 /* Frameworks */,
@@ -271,6 +274,7 @@
 			isa = PBXResourcesBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
+				2FDE729C2F15C48100C471A0 /* Images.xcassets in Resources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};

framework/QmsPluginFramework/QmsPluginFramework/AccessItem/AccessTransactionViewController.mm

 //  AccessTransactionViewController.mm
-
+#import "ImageCacheHelper.h"
 #import "AccessTransactionViewController.h"
 #import <WebKit/WebKit.h>
 
@@ -358,24 +358,17 @@
     submittedSignature.clipsToBounds = YES;
     submittedSignature.layer.borderColor = UIColor.blackColor.CGColor;
     submittedSignature.layer.borderWidth = 1.0;
-    submittedSignature.layer.cornerRadius = 4.0; // optional rounded corners
-    submittedSignature.clipsToBounds = YES;
+    submittedSignature.layer.cornerRadius = 4.0;
     submittedSignature.userInteractionEnabled = YES;
     UITapGestureRecognizer *tapSubmitted = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(onTapSignature:)];
     [submittedSignature addGestureRecognizer:tapSubmitted];
+    [self.contentView addSubview:submittedSignature];
+
     NSURL *submittedURL = [NSURL URLWithString:self.transactionData[@"signature_submit"]];
-    if (submittedURL) {
-        // Simple async load
-        dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
-            NSData *data = [NSData dataWithContentsOfURL:submittedURL];
-            if (data) {
-                UIImage *img = [UIImage imageWithData:data];
-                dispatch_async(dispatch_get_main_queue(), ^{
-                    submittedSignature.image = img;
-                });
-            }
-        });
-    }
+    [ImageCacheHelper loadImageWithURL:submittedURL completion:^(UIImage *image) {
+        submittedSignature.image = image;
+    }];
+
     [self.contentView addSubview:submittedSignature];
 
     UILabel *submittedName = [self regular16:[NSString stringWithFormat:@"Name: %@", self.transactionData[@"name_submit"] ?: @"--"]];
@@ -395,24 +388,16 @@
     receivedSignature.layer.borderColor = UIColor.blackColor.CGColor;
     receivedSignature.layer.borderWidth = 1.0;
     receivedSignature.layer.cornerRadius = 4.0;
-    receivedSignature.clipsToBounds = YES;
     receivedSignature.userInteractionEnabled = YES;
     UITapGestureRecognizer *tapReceived = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(onTapSignature:)];
     [receivedSignature addGestureRecognizer:tapReceived];
-    NSURL *receivedURL = [NSURL URLWithString:self.transactionData[@"signature_receive"]];
-    if (receivedURL) {
-        dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
-            NSData *data = [NSData dataWithContentsOfURL:receivedURL];
-            if (data) {
-                UIImage *img = [UIImage imageWithData:data];
-                dispatch_async(dispatch_get_main_queue(), ^{
-                    receivedSignature.image = img;
-                });
-            }
-        });
-    }
     [self.contentView addSubview:receivedSignature];
 
+    NSURL *receivedURL = [NSURL URLWithString:self.transactionData[@"signature_receive"]];
+    [ImageCacheHelper loadImageWithURL:receivedURL completion:^(UIImage *image) {
+        receivedSignature.image = image;
+    }];
+
     UILabel *receivedName = [self regular16:[NSString stringWithFormat:@"Name: %@", self.transactionData[@"name_receive"] ?: @"--"]];
     [self.contentView addSubview:receivedName];
 

framework/QmsPluginFramework/QmsPluginFramework/Appointment/AppointmentConfirmationViewController.mm

@@ -3,6 +3,7 @@
 #import <WebKit/WebKit.h>
 #import <UIKit/UIKit.h>
 #import "APIClient.h"
+#import "ImageCacheHelper.h"
 
 @interface AppointmentConfirmationViewController () <WKNavigationDelegate>
 
@@ -636,18 +637,9 @@
     NSURL *url = [NSURL URLWithString:urlString];
     if (!url) return;
     
-    NSURLSessionDataTask *task = [[NSURLSession sharedSession] dataTaskWithURL:url
-                                                             completionHandler:^(NSData * _Nullable data, NSURLResponse * _Nullable response, NSError * _Nullable error) {
-        if (data && !error) {
-            UIImage *image = [UIImage imageWithData:data];
-            if (image) {
-                dispatch_async(dispatch_get_main_queue(), ^{
+    [ImageCacheHelper loadImageWithURL:url completion:^(UIImage *image) {
         imageView.image = image;
-                });
-            }
-        }
     }];
-    [task resume];
 }
 
 -(void)confirmPressed {

framework/QmsPluginFramework/QmsPluginFramework/Appointment/AppointmentDetailsViewController.mm

@@ -4,6 +4,7 @@
 #import "APIClient.h"
 #import <WebKit/WebKit.h>
 #import <EventKit/EventKit.h>
+#import "ImageCacheHelper.h"
 
 @interface AppointmentDetailsViewController () <UIScrollViewDelegate>
 
@@ -177,20 +178,9 @@
     NSURL *url = [NSURL URLWithString:urlString];
     if (!url) return;
 
-    NSURLSessionDataTask *task =
-    [[NSURLSession sharedSession] dataTaskWithURL:url
-                                completionHandler:^(NSData *data, NSURLResponse *res, NSError *err) {
-        if (err || !data) return;
-
-        UIImage *img = [UIImage imageWithData:data];
-        if (!img) return;
-
-        dispatch_async(dispatch_get_main_queue(), ^{
-            imageView.image = img;
-        });
+    [ImageCacheHelper loadImageWithURL:url completion:^(UIImage *image) {
+        imageView.image = image;
     }];
-
-    [task resume];
 }
 
 - (void)handleFloorPlanTap:(UITapGestureRecognizer *)sender {

framework/QmsPluginFramework/QmsPluginFramework/Dashboard/DashboardViewController.mm

@@ -14,6 +14,7 @@
 #import "OfflineSyncManager.h"
 #import "LocalStorage.h"
 #import "APIConfig.h"
+#import "ImageCacheHelper.h"
 
 @interface DashboardViewController ()
 
@@ -69,6 +70,7 @@
     self.view.backgroundColor = [UIColor colorWithWhite:0.96 alpha:1.0];
     _sectionViews = [NSMutableDictionary dictionary];
     
+    
     [self setupHeader];
     [self setupScrollContent];
     [self setupFooter];
@@ -212,10 +214,12 @@
     // ---------- Overlay ----------
     self.overlayImageView = [[UIImageView alloc] init];
     self.overlayImageView.translatesAutoresizingMaskIntoConstraints = NO;
-    self.overlayImageView.contentMode = UIViewContentModeScaleAspectFill;
-    self.overlayImageView.alpha = 0.4;
+    self.overlayImageView.contentMode = UIViewContentModeScaleToFill;
+    self.overlayImageView.userInteractionEnabled = NO;
+    self.overlayImageView.alpha = 0.5;
     [imageContainer addSubview:self.overlayImageView];
 
+
     [NSLayoutConstraint activateConstraints:@[
         [self.overlayImageView.topAnchor constraintEqualToAnchor:imageContainer.topAnchor],
         [self.overlayImageView.leadingAnchor constraintEqualToAnchor:imageContainer.leadingAnchor],
@@ -305,21 +309,27 @@
         [self.infoButton.heightAnchor constraintEqualToConstant:24]
     ]];
 
-    // ---------- Load Remote Image ----------
+    // ---------- Load Remote Image & Overlay ----------
+    NSBundle *bundle = [NSBundle bundleForClass:[self class]];
+    UIImage *overlayImage =
+        [UIImage imageNamed:@"img_overlay"
+                   inBundle:bundle
+      compatibleWithTraitCollection:nil];
+    self.overlayImageView.image = overlayImage;
+    [imageContainer bringSubviewToFront:self.overlayImageView];
+    
+    NSLog(@"[Overlay] bundle = %@", bundle);
+    NSLog(@"[Overlay] image = %@", overlayImage);
     NSString *remoteHeaderURL = self.projectLogo;
     if (remoteHeaderURL.length > 0) {
-        dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
-            NSData *data = [NSData dataWithContentsOfURL:[NSURL URLWithString:remoteHeaderURL]];
-            UIImage *img = data ? [UIImage imageWithData:data] : [UIImage imageNamed:@"header_bg"];
-
-            dispatch_async(dispatch_get_main_queue(), ^{
-                self.backgroundImageView.image = img;
-                self.overlayImageView.image = [UIImage imageNamed:@"overlay"];
-            });
-        });
+        NSURL *url = [NSURL URLWithString:remoteHeaderURL];
+        [ImageCacheHelper loadImageWithURL:url completion:^(UIImage *image) {
+            self.backgroundImageView.image = image ?: [UIImage imageNamed:@"header_bg"];
+            [imageContainer bringSubviewToFront:self.overlayImageView];
+        }];
     } else {
         self.backgroundImageView.image = [UIImage imageNamed:@"header_bg"];
-        self.overlayImageView.image = [UIImage imageNamed:@"overlay"];
+        self.overlayImageView.image = [UIImage imageNamed:@"img_overlay"];
     }
 }
 
@@ -670,7 +680,6 @@
     dispatch_async(dispatch_get_main_queue(), ^{
         self.projectNameLabel.text = self.projectName;
         self.unitNameLabel.text = self.projectCode;
-        self.overlayImageView.image = [UIImage imageNamed:@"overlay"];
 
         [self refreshDashboardSectionsWithData:mainData];
     });
@@ -1195,20 +1204,12 @@
             issueImage = lastArray[0][@"image"];
     }
 
-    if (issueImage && issueImage.length > 0) {
+    if (issueImage.length > 0) {
         NSURL *url = [NSURL URLWithString:issueImage];
         if (url) {
-            dispatch_async(dispatch_get_global_queue(QOS_CLASS_USER_INITIATED, 0), ^{
-                NSData *data = [NSData dataWithContentsOfURL:url];
-                if (data) {
-                    UIImage *img = [UIImage imageWithData:data];
-                    if (img) {
-                        dispatch_async(dispatch_get_main_queue(), ^{
-                            thumb.image = img;
-                        });
-                    }
-                }
-            });
+            [ImageCacheHelper loadImageWithURL:url completion:^(UIImage *image) {
+                if (image) thumb.image = image;
+            }];
         }
     }
 
@@ -1401,11 +1402,6 @@
     }
 }
 
-- (UIImage *)downloadImageFrom:(NSString *)urlString {
-    NSData *data = [NSData dataWithContentsOfURL:[NSURL URLWithString:urlString]];
-    return data ? [UIImage imageWithData:data] : [UIImage imageNamed:@"header_bg"];
-}
-
 #pragma mark - Card Factory with Tap Animation
 - (UIView *)createCardWithText:(NSString *)text frame:(CGRect)frame {
     UIView *card = [[UIView alloc] initWithFrame:frame];

framework/QmsPluginFramework/QmsPluginFramework/Dashboard/GeneralInfoViewController.mm

@@ -3,6 +3,7 @@
 #import <objc/runtime.h>
 #import "GeneralInfoViewController.h"
 #import "APIClient.h"
+#import "ImageCacheHelper.h"
 
 @interface GeneralInfoViewController () <UIDocumentInteractionControllerDelegate, UIScrollViewDelegate>
 
@@ -764,15 +765,11 @@ typedef struct {
 
         NSURL *url = [NSURL URLWithString:layoutImageURL];
         if (url) {
-            dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_HIGH, 0), ^{
-                NSData *data = [NSData dataWithContentsOfURL:url];
-                if (data) {
-                    UIImage *img = [UIImage imageWithData:data];
-                    dispatch_async(dispatch_get_main_queue(), ^{
-                        imgView.image = img;
-                    });
+            [ImageCacheHelper loadImageWithURL:url completion:^(UIImage *image) {
+                if (image) {
+                    imgView.image = image;
                 }
-            });
+            }];
         }
 
         UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(showFullImage:)];

framework/QmsPluginFramework/QmsPluginFramework/Dashboard/ProjectViewController.mm

@@ -3,6 +3,7 @@
 #import "APIClient.h"
 #import "APIConfig.h"
 #import "UnitViewController.h"
+#import "ImageCacheHelper.h"
 
 @interface ProjectCardCell : UICollectionViewCell
 @property (nonatomic, strong) UIImageView *imageView;
@@ -160,7 +161,11 @@
                                                                       forIndexPath:indexPath];
     
     // Default placeholder
-    cell.imageView.image = [UIImage systemImageNamed:@"photo"];
+    NSBundle *bundle = [NSBundle bundleForClass:[self class]];
+    UIImage *placeholderImage = [UIImage imageNamed:@"img_placeholder" 
+                                             inBundle:bundle 
+                        compatibleWithTraitCollection:nil];
+    cell.imageView.image = placeholderImage;
     
     NSDictionary *project = self.projects[indexPath.item];
     
@@ -168,35 +173,20 @@
     id projectName = project[@"project_name"];
     cell.nameLabel.text = [projectName isKindOfClass:[NSString class]] ? projectName : @"";
 
-    // Get logo URL safely
-    NSString *logo = project[@"logo"];
-    NSString *thumb = project[@"logo_thumbnail"];
+    // Determine logo URL
+    NSString *logoURLString = project[@"logo"];
+    if (!logoURLString.length) logoURLString = project[@"logo_thumbnail"];
     
-    NSString *logoURLString = (logo.length > 0) ? logo :
-                              (thumb.length > 0) ? thumb : nil;
-
-
-    NSURL *url = [NSURL URLWithString:logoURLString ?: @""];
-
-    // Async load image safely
-    if (url) {
-        NSURLSessionDataTask *task = [[NSURLSession sharedSession] dataTaskWithURL:url
-                                                                 completionHandler:^(NSData * _Nullable data,
-                                                                                     NSURLResponse * _Nullable response,
-                                                                                     NSError * _Nullable error) {
-            UIImage *image = data ? [UIImage imageWithData:data] : nil;
-            if (!image) return; // leave placeholder
-            
-            dispatch_async(dispatch_get_main_queue(), ^{
-                // Only update if the cell is still visible at this indexPath
+    // Use ImageCacheHelper for async loading & caching
+    [ImageCacheHelper loadImageWithURL:[NSURL URLWithString:logoURLString ?: @""] completion:^(UIImage *image) {
+        if (image) {
+            // Ensure the cell is still visible
             ProjectCardCell *updateCell = (ProjectCardCell *)[collectionView cellForItemAtIndexPath:indexPath];
             if (updateCell) {
                 updateCell.imageView.image = image;
             }
-            });
-        }];
-        [task resume];
         }
+    }];
 
     return cell;
 }

framework/QmsPluginFramework/QmsPluginFramework/Issue/AddIssue/DetailsViewController.mm

@@ -4,6 +4,7 @@
 #import <Foundation/Foundation.h>
 #import "OfflineSyncManager.h"
 #import "NetworkManager.h"
+#import "ImageCacheHelper.h"
 
 @interface AddIssueDetailsViewController () <UIImagePickerControllerDelegate, UINavigationControllerDelegate>
 @property (nonatomic, strong) UIView *headerView;
@@ -159,9 +160,7 @@
           NSURL *url = [NSURL URLWithString:urlStr];
           if (!url) continue;
           
-              NSURLSessionDataTask *task = [[NSURLSession sharedSession] dataTaskWithURL:url completionHandler:^(NSData * _Nullable data, NSURLResponse * _Nullable response, NSError * _Nullable error) {
-                  if (error || !data) return;
-                  UIImage *img = [UIImage imageWithData:data];
+          [ImageCacheHelper loadImageWithURL:url completion:^(UIImage *img) {
             if (!img) return;
             
             dispatch_async(dispatch_get_main_queue(), ^{
@@ -179,7 +178,6 @@
               }
             });
           }];
-              [task resume];
         }
       }
       NSLog(@"✅ Prefilled Edit Mode UI successfully");

framework/QmsPluginFramework/QmsPluginFramework/Issue/AddIssue/PlanViewController.mm

@@ -4,6 +4,7 @@
 #import "APIClient.h"
 #import <AVFoundation/AVFoundation.h>
 #import "IssueTutorialViewController.h"
+#import "ImageCacheHelper.h"
 
 @interface PlanViewController ()
 
@@ -218,35 +219,41 @@
         return;
     }
 
-    NSLog(@"⬇️ Downloading plan image from %@", self.planImageURL);
-    NSURLSessionDataTask *task = [[NSURLSession sharedSession] dataTaskWithURL:url
-                                                             completionHandler:^(NSData * _Nullable data, NSURLResponse * _Nullable response, NSError * _Nullable error) {
-        if (error || !data) {
-            NSLog(@"❌ Failed to download plan image: %@", error.localizedDescription);
-            return;
-        }
+    NSLog(@"⬇️ Loading plan image from %@", self.planImageURL);
 
-        UIImage *image = [UIImage imageWithData:data];
+    [ImageCacheHelper loadImageWithURL:url completion:^(UIImage *image) {
         if (!image) {
-            NSLog(@"⚠️ Could not decode image data");
+            NSLog(@"❌ Failed to load plan image from cache/network");
             return;
         }
 
         dispatch_async(dispatch_get_main_queue(), ^{
             self.planImageView.image = image;
             self.planImageView.userInteractionEnabled = YES;
+
+            // Add tap recognizer if not already added
+            BOOL hasTap = NO;
+            for (UIGestureRecognizer *gr in self.planImageView.gestureRecognizers) {
+                if ([gr isKindOfClass:[UITapGestureRecognizer class]]) {
+                    hasTap = YES;
+                    break;
+                }
+            }
+            if (!hasTap) {
                 UITapGestureRecognizer *tapRecognizer =
                     [[UITapGestureRecognizer alloc] initWithTarget:self
                                                             action:@selector(handleTapOnPlan:)];
                 [self.planImageView addGestureRecognizer:tapRecognizer];
+            }
+
             [self.scrollView setZoomScale:1.0 animated:NO];
             [self.view setNeedsLayout];
             [self.view layoutIfNeeded];
             [self renderAllLocations:self.locations];
+
             NSLog(@"✅ Plan image displayed successfully");
         });
     }];
-    [task resume];
 }
 
 - (void)handleTapOnPlan:(UITapGestureRecognizer *)recognizer {
@@ -426,28 +433,6 @@
     ]];
 }
 
-- (void)loadPlanImageFromURL:(NSString *)urlString {
-    NSURL *url = [NSURL URLWithString:urlString];
-    if (!url) return;
-
-    NSURLSessionDataTask *task = [[NSURLSession sharedSession]
-        dataTaskWithURL:url
-      completionHandler:^(NSData *data, NSURLResponse *response, NSError *error) {
-        if (error) {
-            NSLog(@"❌ Failed to load image: %@", error);
-            return;
-        }
-        UIImage *image = [UIImage imageWithData:data];
-        if (image) {
-            dispatch_async(dispatch_get_main_queue(), ^{
-                self.planImageView.image = image;
-                NSLog(@"🖼 Plan image loaded successfully");
-            });
-        }
-    }];
-    [task resume];
-}
-
 - (void)showAlertWithTitle:(NSString *)title message:(NSString *)message {
     dispatch_async(dispatch_get_main_queue(), ^{
         UIAlertController *alert = [UIAlertController alertControllerWithTitle:title

framework/QmsPluginFramework/QmsPluginFramework/Issue/HistoryViewController.mm

@@ -5,6 +5,7 @@
 #import "CalendarView.h"
 #import "NSDate+CalendarHelpers.h"
 #import "AddInfoViewController.h"
+#import "ImageCacheHelper.h"
 
 @interface HistoryViewController () <UITableViewDelegate, UITableViewDataSource>
 
@@ -379,6 +380,7 @@
     CGFloat imageSize = 56;
     CGFloat spacing = 8;
 
+    // Inside your thumbnail loop
     for (NSDictionary *imgDict in images) {
         NSString *thumbURL = imgDict[@"thumb_image"];
         if (thumbURL.length == 0) continue;
@@ -389,22 +391,17 @@
         thumbView.contentMode = UIViewContentModeScaleAspectFill;
         thumbView.backgroundColor = [UIColor colorWithWhite:0.9 alpha:1];
 
-        // Load async
+        [thumbScroll addSubview:thumbView];
+
         NSURL *url = [NSURL URLWithString:thumbURL];
-        dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
-            NSData *data = [NSData dataWithContentsOfURL:url];
-            if (data) {
-                UIImage *img = [UIImage imageWithData:data];
-                dispatch_async(dispatch_get_main_queue(), ^{
-                    thumbView.image = img;
-                });
+        [ImageCacheHelper loadImageWithURL:url completion:^(UIImage *image) {
+            if (image) {
+                thumbView.image = image;
             }
-        });
+        }];
 
-        [thumbScroll addSubview:thumbView];
         x += imageSize + spacing;
     }
-
     thumbScroll.contentSize = CGSizeMake(x, imageSize);
 
     return cell;

framework/QmsPluginFramework/QmsPluginFramework/Issue/IssueDetailViewController.mm

@@ -2,6 +2,7 @@
 #import "HistoryViewController.h"
 #import "PlanViewController.h"
 #import "WithdrawSingleIssueViewController.h"
+#import "ImageCacheHelper.h"
 
 @interface IssueDetailViewController () <UIScrollViewDelegate>
 
@@ -342,29 +343,17 @@
         [imageScroll addSubview:imgView];
 
         NSURL *url = [NSURL URLWithString:urlStr];
-        dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
-            NSData *data = [NSData dataWithContentsOfURL:url];
-            if (data) {
-                UIImage *img = [UIImage imageWithData:data];
-                dispatch_async(dispatch_get_main_queue(), ^{
-                    imgView.image = img;
-                });
-            }
-        });
+        [ImageCacheHelper loadImageWithURL:url completion:^(UIImage *image) {
+            if (image) imgView.image = image;
+        }];
     }
 
     NSString *planThumbURL = self.issueData[@"plan_image_thumb"];
     if (planThumbURL.length > 0) {
         NSURL *url = [NSURL URLWithString:planThumbURL];
-        dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
-            NSData *data = [NSData dataWithContentsOfURL:url];
-            if (data) {
-                UIImage *img = [UIImage imageWithData:data];
-                dispatch_async(dispatch_get_main_queue(), ^{
-                    self.floorPlanThumbnail.image = img;
-                });
-            }
-        });
+        [ImageCacheHelper loadImageWithURL:url completion:^(UIImage *image) {
+            if (image) self.floorPlanThumbnail.image = image;
+        }];
     }
 
     //thumbnail marker
@@ -471,14 +460,9 @@
 
     // Load full image asynchronously
     NSURL *url = [NSURL URLWithString:planFullURL];
-    dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
-        NSData *data = [NSData dataWithContentsOfURL:url];
-        if (!data) return;
-
-        UIImage *img = [UIImage imageWithData:data];
+    [ImageCacheHelper loadImageWithURL:url completion:^(UIImage *img) {
         if (!img) return;
 
-        dispatch_async(dispatch_get_main_queue(), ^{
         fullImageView.image = img;
 
         NSString *xStr = self.issueData[@"pos_x"];
@@ -504,8 +488,7 @@
             marker.layer.borderWidth = 1.5;
             [fullImageView addSubview:marker];
         }
-        });
-    });
+    }];
 }
 
 - (void)closeFullFloorPlan {

framework/QmsPluginFramework/QmsPluginFramework/Issue/IssuesViewController.mm

@@ -4,6 +4,7 @@
 #import "IssueDetailViewController.h"
 #import "WithdrawSingleIssueViewController.h"
 #import "WithdrawIssuesViewController.h"
+#import "ImageCacheHelper.h"
 
 #pragma mark - Internal IssueCell
 @interface IssueCell : UITableViewCell
@@ -605,30 +606,23 @@
     // --- Thumbnail Handling ---
     if (thumbURL.length > 0) {
         NSURL *url = [NSURL URLWithString:thumbURL];
-        dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
-            NSData *data = [NSData dataWithContentsOfURL:url];
-            dispatch_async(dispatch_get_main_queue(), ^{
+        [ImageCacheHelper loadImageWithURL:url completion:^(UIImage *img) {
+            // Make sure cell is still visible
             IssueCell *updateCell = [tableView cellForRowAtIndexPath:indexPath];
             if (!updateCell) return;
 
-                // Clear any "No image" labels
+            // Clear previous subviews / placeholders
             for (UIView *subview in updateCell.thumbView.subviews) {
                 [subview removeFromSuperview];
             }
 
-                if (data) {
-                    UIImage *img = [UIImage imageWithData:data];
             if (img) {
                 updateCell.thumbView.image = img;
                 updateCell.thumbView.backgroundColor = UIColor.clearColor;
             } else {
                 [self setNoImagePlaceholder:updateCell.thumbView];
             }
-                } else {
-                    [self setNoImagePlaceholder:updateCell.thumbView];
-                }
-            });
-        });
+        }];
     } else {
         [self setNoImagePlaceholder:cell.thumbView];
     }

framework/QmsPluginFramework/QmsPluginFramework/Issue/WithdrawIssuesViewController.mm

@@ -3,6 +3,7 @@
 #import "APIClient.h"
 #import "WithdrawSingleIssueViewController.h"
 #import "FilterViewController.h"
+#import "ImageCacheHelper.h"
 
 #pragma mark - custom cell structure
 @interface WithdrawIssueCell : UITableViewCell
@@ -631,9 +632,7 @@
     // Thumbnail rendering (copied from IssueViewController)
     if (thumbURL.length > 0) {
         NSURL *url = [NSURL URLWithString:thumbURL];
-        dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
-            NSData *data = [NSData dataWithContentsOfURL:url];
-            dispatch_async(dispatch_get_main_queue(), ^{
+        [ImageCacheHelper loadImageWithURL:url completion:^(UIImage *img) {
             WithdrawIssueCell *updateCell = [tableView cellForRowAtIndexPath:indexPath];
             if (!updateCell) return;
 
@@ -642,19 +641,13 @@
                 [subview removeFromSuperview];
             }
 
-                if (data) {
-                    UIImage *img = [UIImage imageWithData:data];
             if (img) {
                 updateCell.thumbView.image = img;
                 updateCell.thumbView.backgroundColor = UIColor.clearColor;
             } else {
                 [self setNoImagePlaceholder:updateCell.thumbView];
             }
-                } else {
-                    [self setNoImagePlaceholder:updateCell.thumbView];
-                }
-            });
-        });
+        }];
     } else {
         [self setNoImagePlaceholder:cell.thumbView];
     }

framework/QmsPluginFramework/QmsPluginFramework/Sync/SyncScreenViewController.mm

@@ -620,7 +620,7 @@ static NSString * const kLastOfflineSyncDateKey = @"LAST_OFFLINE_SYNC_DATE";
                   [APIConfig projectId], [APIConfig drawingPlanId]);
 
             NSString *message = [NSString stringWithFormat:
-                                 @"Currently downloading unit \"%@\".\nPlease do not close the app.", sortName];
+                                 @"Currently downloading for unit \"%@\".\nPlease do not close the app.", sortName];
 
             [[OfflineSyncManager shared] startDownloadUnitImagesWithProgress:^(NSInteger completed, NSInteger total) {
                 __strong typeof(weakSelf) strongSelf2 = weakSelf;

framework/QmsPluginFramework/QmsPluginFramework/Utilities/API/APIClient.mm

@@ -1738,10 +1738,6 @@
 + (void)requestArrayImage:(NSArray *)imageArray
                 completion:(void(^)(BOOL success, NSDictionary * _Nullable response, NSError * _Nullable error))completion {
     
-    if ([APIConfig handleOfflineForAPI:@"ArrayImage" completion:completion]) {  
-        return;
-    }
-
     // ✅ URL
     NSURL *url = [APIConfig urlWithPath:@"/owner/offline/syncImageArray"];
     
@@ -1795,10 +1791,6 @@
 
         dispatch_async(dispatch_get_main_queue(), ^{
             if (completion) {
-                NSString *cacheKey = [NSString stringWithFormat:@"ArrayImage_%@", [APIConfig projectId]];
-                NSDictionary *safeJson = [APIConfig dictionaryByReplacingNullsWithBlanks:jsonResponse];
-                [LocalStorage saveDictionary:safeJson forKey:cacheKey];
-                NSLog(@"💾 Saved to cache: %@", cacheKey);
                 completion(YES, jsonResponse, jsonParseError);
             }
         });

framework/QmsPluginFramework/QmsPluginFramework/Utilities/ImageCaching/ImageCacheHelper.h

+//  ImageCacheHelper.h
+#import <UIKit/UIKit.h>
+
+@interface ImageCacheHelper : NSObject
+
+/// Load image from cache, download if missing, or fallback to placeholder
++ (void)loadImageWithURL:(NSURL *)url
+             completion:(void (^)(UIImage *image))completion;
+
+/// Shared placeholder image
++ (UIImage *)placeholderImage;
+
+/// Get the expected cache file path for a URL
++ (NSString *)cachedFilePathForURL:(NSURL *)url;
+
+@end
+
+

framework/QmsPluginFramework/QmsPluginFramework/Utilities/ImageCaching/ImageCacheHelper.mm

+//  ImageCacheHelper.mm
+#import <CommonCrypto/CommonDigest.h>
+#import "ImageCacheHelper.h"
+#import "NetworkManager.h"
+#import "APIClient.h"
+
+@implementation ImageCacheHelper
+
+#pragma mark - Public Methods
+
++ (void)loadImageWithURL:(NSURL *)url
+             completion:(void (^)(UIImage *image))completion {
+    
+    if (!url) {
+        if (completion) completion([self placeholderImage]);
+        return;
+    }
+    
+    NSString *filePath = [self cachedFilePathForURL:url];
+    NSFileManager *fm = [NSFileManager defaultManager];
+    
+    // 1️⃣ Check cache
+    if ([fm fileExistsAtPath:filePath]) {
+        UIImage *cachedImage = [UIImage imageWithContentsOfFile:filePath];
+        if (cachedImage) {
+            if (completion) completion(cachedImage);
+            return;
+        }
+    }
+    
+    // 2️⃣ Not cached → check network
+    if (![self canDownloadImages]) {
+        // No internet → return placeholder
+        if (completion) completion([self placeholderImage]);
+        return;
+    }
+    
+    // 3️⃣ Download
+    [APIClient downloadAndCacheImage:url completion:^(BOOL success, NSString *filePath) {
+        UIImage *img = nil;
+        if (success && filePath) {
+            img = [UIImage imageWithContentsOfFile:filePath];
+        }
+        if (!img) img = [self placeholderImage];
+        
+        dispatch_async(dispatch_get_main_queue(), ^{
+            if (completion) completion(img);
+        });
+    }];
+}
+
++ (UIImage *)placeholderImage {
+    static UIImage *image = nil;
+    static dispatch_once_t onceToken;
+    dispatch_once(&onceToken, ^{
+        NSBundle *bundle = [NSBundle bundleForClass:self];
+        image = [UIImage imageNamed:@"img_placeholder"
+                           inBundle:bundle
+      compatibleWithTraitCollection:nil];
+    });
+    return image;
+}
+
+#pragma mark - Cache File Helper
+
++ (NSString *)cachedFilePathForURL:(NSURL *)url {
+    if (!url) return nil;
+    
+    NSString *cacheDir = [self offlineImageCacheDirectory]; // You already have this
+    NSFileManager *fm = [NSFileManager defaultManager];
+    if (![fm fileExistsAtPath:cacheDir]) {
+        NSError *dirError = nil;
+        [fm createDirectoryAtPath:cacheDir
+      withIntermediateDirectories:YES
+                       attributes:nil
+                            error:&dirError];
+        if (dirError) {
+            NSLog(@"❌ Failed to create cache directory: %@", dirError);
+        }
+    }
+    
+    NSString *cleanName = url.lastPathComponent.stringByDeletingPathExtension;
+    NSString *ext = url.pathExtension;
+    NSString *fileName = [NSString stringWithFormat:@"%@_%@.%@",
+                          cleanName,
+                          [self md5Hash:url.absoluteString],
+                          ext];
+    
+    return [cacheDir stringByAppendingPathComponent:fileName];
+}
+
+#pragma mark - MD5 Hash Helper
+
++ (NSString *)md5Hash:(NSString *)input {
+    if (!input) return @"";
+    const char *cStr = [input UTF8String];
+    unsigned char digest[CC_MD5_DIGEST_LENGTH];
+    CC_MD5(cStr, (CC_LONG)strlen(cStr), digest);
+    NSMutableString *output = [NSMutableString stringWithCapacity:CC_MD5_DIGEST_LENGTH * 2];
+    for(int i = 0; i < CC_MD5_DIGEST_LENGTH; i++)
+        [output appendFormat:@"%02x", digest[i]];
+    return output;
+}
+
+#pragma mark - Offline Cache Directory
+
++ (NSString *)offlineImageCacheDirectory {
+    NSArray *paths = NSSearchPathForDirectoriesInDomains(NSCachesDirectory, NSUserDomainMask, YES);
+    NSString *cacheDir = [[paths firstObject] stringByAppendingPathComponent:@"OfflineImages"];
+    return cacheDir;
+}
+
++ (BOOL)canDownloadImages {
+    return [NetworkManager.sharedManager isConnected];
+}
+
+@end

framework/QmsPluginFramework/QmsPluginFramework/Utilities/OfflineSync/OfflineSyncManager.mm

@@ -3,15 +3,16 @@
 #import "LocalStorage.h"
 #import "NetworkManager.h"
 #import "APIClient.h"
+#import "APIConfig.h"
 
 static NSString * const kOfflineQueueKey = @"OFFLINE_SYNC_QUEUE";
 
-static NSString * const kSelectedOfflineUnitsKey = @"SELECTED_OFFLINE_UNITS";
-
 static NSString * const kSyncHistoryKey = @"SYNC_HISTORY_QUEUE";
 
 static NSString * const kLastOfflineSyncDateKey = @"LAST_OFFLINE_SYNC_DATE";
 
+static NSString * const kSyncSelectedUnitsKey = @"SYNC_SELECTEDUNITS";
+
 @implementation OfflineSyncManager
 
 #pragma mark - Singleton
@@ -542,7 +543,7 @@ static NSString * const kLastOfflineSyncDateKey = @"LAST_OFFLINE_SYNC_DATE";
         return;
     }
 
-    NSArray *selectedUnits = [LocalStorage loadArrayForKey:kSelectedOfflineUnitsKey] ?: @[];
+    NSArray *selectedUnits = [self buildOfflineUnitPayloadForCurrentConfig] ?: @[];
 
     // ------------------------------
     // Build sequential tasks
@@ -986,10 +987,33 @@ static NSString * const kLastOfflineSyncDateKey = @"LAST_OFFLINE_SYNC_DATE";
             if (img[@"link"]) [urls addObject:[NSURL URLWithString:img[@"link"]]];
         }
 
+        for (NSURL *url in urls) {
+            NSLog(@"URL for image downloads: %@", url.absoluteString);
+        }
         completion(urls.array, nil);
     }];
 }
 
+- (NSArray *)buildOfflineUnitPayloadForCurrentConfig {
+    NSString *projectId = [APIConfig projectId];
+    NSString *planId = [APIConfig drawingPlanId];
+
+    if (!projectId || !planId) {
+        NSLog(@"⚠️ Missing projectId or planId for image sync");
+        return @[];
+    }
+
+    NSArray *result = @[
+        @{
+            @"project_id": projectId,
+            @"plan_id": @[planId]   // API expects array
+        }
+    ];
+
+    NSLog(@"🔄 Image sync payload (single unit): %@", result);
+    return result;
+}
+
 #pragma mark - Safe Sequential API Helper
 
 - (void)safeSequentialTask:(NSString *)taskKey