feat(android): add saveOnDevice prop

Author: jorgemasta

android/src/main/java/com/documentscanner/DocumentScannerViewManager.java

@@ -65,6 +65,11 @@ public void setOverlayColor(MainView view, String rgbaColor) {
         view.setOverlayColor(rgbaColor);
     }
 
+    @ReactProp(name = "saveOnDevice", defaultBoolean = false)
+    public void setSaveOnDevice(MainView view, Boolean saveOnDevice) {
+        view.setSaveOnDevice(saveOnDevice);
+    }
+
     @ReactProp(name = "detectionCountBeforeCapture", defaultInt = 15)
     public void setDetectionCountBeforeCapture(MainView view, int numberOfRectangles) {
         view.setDetectionCountBeforeCapture(numberOfRectangles);

android/src/main/java/com/documentscanner/views/MainView.java

@@ -76,6 +76,10 @@ public void setOverlayColor(String rgbaColor) {
         view.setOverlayColor(rgbaColor);
     }
 
+    public void setSaveOnDevice(Boolean saveOnDevice) {
+        view.setSaveOnDevice(saveOnDevice);
+    }
+
     public void setBrightness(double brightness) {
         view.setBrightness(brightness);
     }

android/src/main/java/com/documentscanner/views/OpenNoteCameraView.java

@@ -117,6 +117,7 @@ public class OpenNoteCameraView extends JavaCameraView implements PictureCallbac
     private int numberOfRectangles = 15;
     private Boolean enableTorch = false;
     public String overlayColor = null;
+    public Boolean saveOnDevice = false;
     private View blinkView = null;
     private View mView = null;
     private boolean manualCapture = false;
@@ -179,6 +180,10 @@ public void setOverlayColor(String rgbaColor) {
         this.overlayColor = rgbaColor;
     }
 
+    public void setSaveOnDevice(Boolean saveOnDevice) {
+        this.saveOnDevice = saveOnDevice;
+    }
+
     public void setDetectionCountBeforeCapture(int numberOfRectangles) {
         this.numberOfRectangles = numberOfRectangles;
     }
@@ -653,12 +658,13 @@ public String saveToDirectory(Mat doc) {
         boolean isIntent = false;
         Uri fileUri = null;
         String folderName = "documents";
-        File folder = new File(Environment.getExternalStorageDirectory().toString() + "/" + folderName);
+        String folderDir = this.saveOnDevice ? Environment.getExternalStorageDirectory().toString() : this.mContext.getCacheDir().toString();
+        File folder = new File( folderDir + "/" + folderName);
         if (!folder.exists()) {
             folder.mkdirs();
             Log.d(TAG, "wrote: created folder " + folder.getPath());
         }
-        fileName = Environment.getExternalStorageDirectory().toString() + "/" + folderName + "/" + UUID.randomUUID()
+        fileName = folderDir + "/" + folderName + "/" + UUID.randomUUID()
                 + ".jpg";
 
         Mat endDoc = new Mat(Double.valueOf(doc.size().width).intValue(), Double.valueOf(doc.size().height).intValue(),
@@ -733,7 +739,9 @@ public void saveDocument(ScannedDocument scannedDocument) {
             mActivity.finish();
         } else {
             animateDocument(fileName, scannedDocument);
-            addImageToGallery(fileName, mContext);
+            if (this.saveOnDevice) {
+                addImageToGallery(fileName, mContext);
+            }
         }
 
         // Record goal "PictureTaken"

index.js

@@ -1,22 +1,27 @@
-import React from 'react';
-import { requireNativeComponent, NativeModules, View, Platform, DeviceEventEmitter } from 'react-native';
-import PropTypes from 'prop-types';
+import React from "react";
+import {
+  requireNativeComponent,
+  NativeModules,
+  View,
+  Platform,
+  DeviceEventEmitter
+} from "react-native";
+import PropTypes from "prop-types";
 
-const RNPdfScanner = requireNativeComponent('RNPdfScanner', PdfScanner);
+const RNPdfScanner = requireNativeComponent("RNPdfScanner", PdfScanner);
 const CameraManager = NativeModules.RNPdfScannerManager || {};
 
 class PdfScanner extends React.Component {
-
   static defaultProps = {
-    onPictureTaken: ()=>{},
-    onProcessing: ()=>{},
-  }
+    onPictureTaken: () => {},
+    onProcessing: () => {}
+  };
 
   sendOnPictureTakenEvent(event) {
     return this.props.onPictureTaken(event.nativeEvent);
   }
 
-  sendOnRectanleDetectEvent(event) {
+  sendOnRectangleDetectEvent(event) {
     if (!this.props.onRectangleDetect) return null;
     return this.props.onRectangleDetect(event.nativeEvent);
   }
@@ -28,19 +33,19 @@ class PdfScanner extends React.Component {
     return this.props.quality;
   }
 
-  componentWillMount(){
-    if (Platform.OS === 'android') {
+  componentWillMount() {
+    if (Platform.OS === "android") {
       const { onPictureTaken, onProcessing } = this.props;
-      DeviceEventEmitter.addListener('onPictureTaken', onPictureTaken);
-      DeviceEventEmitter.addListener('onProcessingChange', onProcessing);
+      DeviceEventEmitter.addListener("onPictureTaken", onPictureTaken);
+      DeviceEventEmitter.addListener("onProcessingChange", onProcessing);
     }
   }
-  
-  componentWillUnmount(){
-    if (Platform.OS === 'android') {
+
+  componentWillUnmount() {
+    if (Platform.OS === "android") {
       const { onPictureTaken, onProcessing } = this.props;
-      DeviceEventEmitter.removeListener('onPictureTaken', onPictureTaken);
-      DeviceEventEmitter.removeListener('onProcessingChange', onProcessing);
+      DeviceEventEmitter.removeListener("onPictureTaken", onPictureTaken);
+      DeviceEventEmitter.removeListener("onProcessingChange", onProcessing);
     }
   }
 
@@ -54,14 +59,16 @@ class PdfScanner extends React.Component {
       <RNPdfScanner
         {...this.props}
         onPictureTaken={this.sendOnPictureTakenEvent.bind(this)}
-        onRectangleDetect={this.sendOnRectanleDetectEvent.bind(this)}
-        useFrontCam={this.props.useFrontCam||false}
-        brightness={this.props.brightness||0}
-        saturation={this.props.saturation||1}
-        contrast={this.props.contrast||1}
+        onRectangleDetect={this.sendOnRectangleDetectEvent.bind(this)}
+        useFrontCam={this.props.useFrontCam || false}
+        brightness={this.props.brightness || 0}
+        saturation={this.props.saturation || 1}
+        contrast={this.props.contrast || 1}
         quality={this.getImageQuality()}
-        detectionCountBeforeCapture={this.props.detectionCountBeforeCapture||5}
-        detectionRefreshRateInMS={this.props.detectionRefreshRateInMS||50}
+        detectionCountBeforeCapture={
+          this.props.detectionCountBeforeCapture || 5
+        }
+        detectionRefreshRateInMS={this.props.detectionRefreshRateInMS || 50}
       />
     );
   }
@@ -79,11 +86,10 @@ PdfScanner.propTypes = {
   detectionCountBeforeCapture: PropTypes.number,
   detectionRefreshRateInMS: PropTypes.number,
   quality: PropTypes.number,
-
-  documentAnimation : PropTypes.bool,
+  documentAnimation: PropTypes.bool,
   noGrayScale: PropTypes.bool,
   manualOnly: PropTypes.bool,
-    ...View.propTypes // include the default view properties
+  ...View.propTypes // include the default view properties
 };
 
 export default PdfScanner;