PDF support

lib/utils/i18n.dart

@@ -14,6 +14,7 @@ abstract class LocaleCodeAware {
 mixin LocalizationsProvider on LocaleCodeAware {
   static final Map<String, Map<String, String>> _localizedValues = {
     'en': {
+      'pdf_min_requirements': 'The PDF renderer requires :version',
       'adjust_fee_percent': 'Adjust Fee Percent',
       'adjust_fee_percent_help': 'Ensure client fee matches the gateway fee',
       'configure_settings': 'Configure Settings',
@@ -15866,6 +15867,8 @@ mixin LocalizationsProvider on LocaleCodeAware {
 
   String get adjustFeePercentHelp => _localizedValues[localeCode]['adjust_fee_percent_help'];
 
+  String get pdfMinRequirements => _localizedValues[localeCode]['pdf_min_requirements'];
+
   String lookup(String key) {
     final lookupKey = toSnakeCase(key);
     return _localizedValues[localeCode][lookupKey] ??

lib/utils/pdf.dart

@@ -5,10 +5,11 @@ import 'package:invoiceninja_flutter/data/models/invoice_model.dart';
 import 'package:flutter/foundation.dart';
 import 'package:invoiceninja_flutter/ui/app/loading_indicator.dart';
 import 'package:invoiceninja_flutter/utils/localization.dart';
+import 'package:invoiceninja_flutter/utils/platforms.dart';
+import 'package:native_pdf_view/native_pdf_view.dart';
 import 'package:url_launcher/url_launcher.dart';
 import 'package:native_pdf_renderer/native_pdf_renderer.dart';
 
-
 Future<Null> viewPdf(InvoiceEntity invoice, BuildContext context) async {
   final localization = AppLocalization.of(context);
   if (Platform.isIOS) {
@@ -56,7 +57,8 @@ Future<Null> viewPdf(InvoiceEntity invoice, BuildContext context) async {
                       return LoadingIndicator();
                     case ConnectionState.done:
                       if (snapshot.hasError)
-                        return Text('Error: ${snapshot.error}');
+                        return Text(
+                            '${getPdfRequirements(context)} - Error: ${snapshot.error}');
                       else
                         return snapshot.data.length == 1
                             ? Center(
@@ -80,10 +82,11 @@ Future<Null> viewPdf(InvoiceEntity invoice, BuildContext context) async {
                                             ),
                                             Container(
                                               color: Colors.white,
-                                              child: Image(
-                                                  image:
-                                                      MemoryImage(page.bytes),
-                                                  height: double.infinity),
+                                              child: ExtendedImage.memory(
+                                                page.bytes,
+                                                fit: BoxFit.fitHeight,
+                                                mode: ExtendedImageMode.gesture,
+                                              ),
                                             ),
                                           ],
                                         ))

lib/utils/platforms.dart

@@ -3,6 +3,7 @@ import 'package:flutter_redux/flutter_redux.dart';
 import 'package:invoiceninja_flutter/constants.dart';
 import 'package:invoiceninja_flutter/redux/app/app_state.dart';
 import 'package:invoiceninja_flutter/redux/ui/pref_state.dart';
+import 'package:invoiceninja_flutter/utils/localization.dart';
 
 bool isAndroid(BuildContext context) =>
     Theme.of(context).platform == TargetPlatform.android;
@@ -15,6 +16,16 @@ String getLegacyAppURL(BuildContext context) => isAndroid(context)
     ? 'https://play.google.com/store/apps/details?id=com.invoiceninja.invoiceninja'
     : 'https://itunes.apple.com/WebObjects/MZStore.woa/wa/viewSoftware?id=1220337560&mt=8';
 
+String getPdfRequirements(BuildContext context) {
+  final localization = AppLocalization.of(context);
+  if (isMobile(context)) {
+    final version = isAndroid(context) ? 'Android 5.0+' : 'iOS 11.0+';
+    return localization.pdfMinRequirements.replaceFirst(':version', version);
+  } else {
+    return '';
+  }
+}
+
 String getPlatform(BuildContext context) =>
     Theme.of(context).platform == TargetPlatform.iOS ? 'ios' : 'android';
 

pubspec.lock

@@ -190,6 +190,20 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "1.3.3"
+  extended_image:
+    dependency: transitive
+    description:
+      name: extended_image
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.6.8"
+  extended_image_library:
+    dependency: transitive
+    description:
+      name: extended_image_library
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.1.9"
   extension:
     dependency: transitive
     description:
@@ -395,6 +409,13 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "0.12.0+2"
+  http_client_helper:
+    dependency: transitive
+    description:
+      name: http_client_helper
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.2.1"
   http_multi_server:
     dependency: transitive
     description:
@@ -522,12 +543,19 @@ packages:
     source: hosted
     version: "1.0.2"
   native_pdf_renderer:
-    dependency: "direct main"
+    dependency: transitive
     description:
       name: native_pdf_renderer
       url: "https://pub.dartlang.org"
     source: hosted
     version: "1.6.1"
+  native_pdf_view:
+    dependency: "direct main"
+    description:
+      name: native_pdf_view
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.1.0"
   node_interop:
     dependency: transitive
     description:

pubspec.yaml

@@ -40,7 +40,8 @@ dependencies:
   flutter_json_widget: ^1.0.2
   webview_flutter: ^0.3.15+1
   timeago: ^2.0.22
-  native_pdf_renderer: any
+  #native_pdf_renderer: any
+  native_pdf_view: any
   flutter_typeahead: ^1.7.0
   #quick_actions: ^0.2.1