feat: add capture method back

Author: Tweenkie

ios/RNPdfScannerManager.m

@@ -31,6 +31,18 @@ - (dispatch_queue_t)methodQueue
 RCT_EXPORT_VIEW_PROPERTY(brightness, float)
 RCT_EXPORT_VIEW_PROPERTY(contrast, float)
 
+RCT_EXPORT_METHOD(capture:(nonnull NSNumber *)reactTag)
+{
+    [self.bridge.uiManager addUIBlock:^(__unused RCTUIManager *uiManager, NSDictionary<NSNumber *, DocumentScannerView *> *viewRegistry) {
+        DocumentScannerView *view = viewRegistry[reactTag];
+        if (![view isKindOfClass:[DocumentScannerView class]]) {
+            RCTLogError(@"Invalid view returned from registry, expecting DocumentScannerView, got: %@", view);
+        } else {
+            [view capture];
+        }
+    }];
+}
+
 - (UIView*) view {
     return [DocumentScannerView new];
 }

src/index.tsx

@@ -90,9 +90,16 @@ class PdfScanner extends React.Component<PdfScannerProps> {
     }
   }
 
+  capture () {
+    let native: any = this.ref.current
+    if (native) { native.capture() }
+  }
+
+  ref = React.createRef();
   render () {
     return (
       <RNPdfScanner
+        ref={this.ref}
         {...this.props}
         onPictureTaken={this.sendOnPictureTakenEvent.bind(this)}
         onRectangleDetect={this.sendOnRectangleDetectEvent.bind(this)}