Retrieve the image path also on iOS

plugin.xml

@@ -37,6 +37,8 @@
     <!-- android -->
     <platform name="android">
 
+        <dependency id="com.android.support:[email protected]" />
+
         <config-file target="AndroidManifest.xml" parent="/*">
             <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
         </config-file>

src/android/Canvas2ImagePlugin.java

@@ -10,12 +10,16 @@
 import org.json.JSONArray;
 import org.json.JSONException;
 
+import android.Manifest;
+import android.app.Activity;
 import android.content.Intent;
+import android.content.pm.PackageManager;
 import android.graphics.Bitmap;
 import android.graphics.BitmapFactory;
 import android.net.Uri;
 import android.os.Build;
 import android.os.Environment;
+import android.support.v4.app.ActivityCompat;
 import android.util.Base64;
 import android.util.Log;
 
@@ -48,7 +52,7 @@ public boolean execute(String action, JSONArray data,
 			if (bmp == null) {
 				callbackContext.error("The image could not be decoded");
 			} else {
-				
+
 				// Save the image
 				File imageFile = savePhoto(bmp);
 				if (imageFile == null)
@@ -70,7 +74,9 @@ private File savePhoto(Bitmap bmp) {
 		File retVal = null;
 
 		try {
-			Calendar c = Calendar.getInstance();
+            verifyStoragePermissions(this.cordova.getActivity());
+
+            Calendar c = Calendar.getInstance();
 			String date = "" + c.get(Calendar.DAY_OF_MONTH)
 					+ c.get(Calendar.MONTH)
 					+ c.get(Calendar.YEAR)
@@ -122,5 +128,33 @@ private void scanPhoto(File imageFile)
 	    Uri contentUri = Uri.fromFile(imageFile);
 	    mediaScanIntent.setData(contentUri);	      		  
 	    cordova.getActivity().sendBroadcast(mediaScanIntent);
-	} 
-}
+	}
+
+    // Storage Permissions
+    private static final int REQUEST_EXTERNAL_STORAGE = 1;
+    private static String[] PERMISSIONS_STORAGE = {
+            Manifest.permission.READ_EXTERNAL_STORAGE,
+            Manifest.permission.WRITE_EXTERNAL_STORAGE
+    };
+
+    /**
+     * Checks if the app has permission to write to device storage
+     *
+     * If the app does not has permission then the user will be prompted to grant permissions
+     *
+     * @param activity
+     */
+    public static void verifyStoragePermissions(Activity activity) {
+        // Check if we have write permission
+        int permission = ActivityCompat.checkSelfPermission(activity, Manifest.permission.WRITE_EXTERNAL_STORAGE);
+
+        if (permission != PackageManager.PERMISSION_GRANTED) {
+            // We don't have permission so prompt the user
+            ActivityCompat.requestPermissions(
+                    activity,
+                    PERMISSIONS_STORAGE,
+                    REQUEST_EXTERNAL_STORAGE
+            );
+        }
+    }
+}

src/ios/Canvas2ImagePlugin.m

@@ -4,11 +4,12 @@
 //
 //  Created by Tommy-Carlos Williams on 29/03/12.
 //  Copyright (c) 2012 Tommy-Carlos Williams. All rights reserved.
-//	MIT Licensed
+//  MIT Licensed
 //
 
 #import "Canvas2ImagePlugin.h"
 #import <Cordova/CDV.h>
+#import <AssetsLibrary/AssetsLibrary.h>
 
 @implementation Canvas2ImagePlugin
 @synthesize callbackId;
@@ -22,35 +23,30 @@ @implementation Canvas2ImagePlugin
 - (void)saveImageDataToLibrary:(CDVInvokedUrlCommand*)command
 {
     self.callbackId = command.callbackId;
-	NSData* imageData = [[NSData alloc] initWithBase64EncodedString:[command.arguments objectAtIndex:0] options:0];
-
-	UIImage* image = [[[UIImage alloc] initWithData:imageData] autorelease];	
-	UIImageWriteToSavedPhotosAlbum(image, self, @selector(image:didFinishSavingWithError:contextInfo:), nil);
-
-}
-
-- (void)image:(UIImage *)image didFinishSavingWithError:(NSError *)error contextInfo:(void *)contextInfo
-{
-    // Was there an error?
-    if (error != NULL)
-    {
-        // Show error message...
-        NSLog(@"ERROR: %@",error);
-		CDVPluginResult* result = [CDVPluginResult resultWithStatus: CDVCommandStatus_ERROR messageAsString:error.description];
-		[self.commandDelegate sendPluginResult:result callbackId:self.callbackId];
-    }
-    else  // No errors
-    {
-        // Show message image successfully saved
-        NSLog(@"IMAGE SAVED!");
-		CDVPluginResult* result = [CDVPluginResult resultWithStatus: CDVCommandStatus_OK messageAsString:@"Image saved"];
-		[self.commandDelegate sendPluginResult:result callbackId:self.callbackId];
-    }
+    NSData* imageData = [[NSData alloc] initWithBase64EncodedString:[command.arguments objectAtIndex:0] options:0];
+
+    UIImage* image = [[[UIImage alloc] initWithData:imageData] autorelease];    
+    ALAssetsLibrary *library = [[ALAssetsLibrary alloc] init];
+    // Request to save the image to camera roll
+    [library writeImageToSavedPhotosAlbum:[image CGImage] orientation:ALAssetOrientationRight /*(ALAssetOrientation)[image imageOrientation]*/ completionBlock:^(NSURL *assetURL, NSError *error){
+        if (error) {
+            // Show error message...
+            NSLog(@"ERROR: %@",error);
+            CDVPluginResult* result = [CDVPluginResult resultWithStatus: CDVCommandStatus_ERROR messageAsString:error.description];
+            [self.commandDelegate sendPluginResult:result callbackId:self.callbackId];
+        } else {
+            // Show message image successfully saved
+            NSLog(@"IMAGE SAVED!");
+            CDVPluginResult* result = [CDVPluginResult resultWithStatus: CDVCommandStatus_OK messageAsString: [assetURL absoluteString]];
+            [self.commandDelegate sendPluginResult:result callbackId:self.callbackId];
+        }
+    }];
+    [library release];
 }
 
 - (void)dealloc
-{	
-	[callbackId release];
+{   
+    [callbackId release];
     [super dealloc];
 }