New samples added.

Author: Yuvaraj-Gajaraj

README.md

@@ -1,63 +1,16 @@
-# Syncfusion Flutter Examples
+# flutter_examples
 
-This repository contains the demos of Syncfusion Flutter UI widgets. This is the best place to check our widgets to get more insight about the usage of APIs. You can also check our widgets by installing the [sample browser application](https://play.google.com/store/apps/details?id=com.syncfusion.flutter.examples&hl=en) from Google Play Store, in which you can browse the demos for all the available widgets and view the source code of each example within the app itself.
+This project contains the Syncfusion Flutter UI widgets examples.
 
-![showcase_image](https://cdn.syncfusion.com/content/images/FTControl/screen2.png)
+## Getting Started
 
-This section guides you how to use the Syncfusion Flutter examples in your applications.
+This project is a starting point for a Flutter application.
 
-## Table of contents
+A few resources to get you started if this is your first Flutter project:
 
-* [Requirements to run the demo](#requirements-to-run-the-demo)
-* [Repository structure](#repository-structure)
-* [Using the samples](#using-the-samples)
-* [Support and feedback](#support-and-feedback)
-* [Screenshots](#screenshots)
-* [Disclaimer](#disclaimer)
-* [About Syncfusion](#about-syncfusion)
+- [Lab: Write your first Flutter app](https://flutter.dev/docs/get-started/codelab)
+- [Cookbook: Useful Flutter samples](https://flutter.dev/docs/cookbook)
 
-## <a name="requirements-to-run-the-demo"></a>Requirements to run the demo ##
-
-* [Flutter SDK](https://flutter.dev/docs/get-started/install/windows)
-* [Android studio](https://developer.android.com/studio/install) or [Visual studio code](https://code.visualstudio.com/download)
-* Install Flutter extension in Android studio or in [VS code](https://marketplace.visualstudio.com/items?itemName=Dart-Code.flutter)
-
-## <a name="repository-structure"></a>Repository structure ##
-
-This repository contains sample browser project. Each widgets sample will be found inside the lib/samples folder. Run this project to see the demo samples of all the Flutter widgets in single application.
-
-## <a name="using-the-samples"></a>Using the samples ##
-
-* Download or clone the files in repository.
-* Get the required packages referred in the project.
-
-## <a name="support-and-feedback"></a>Support and Feedback ##
-
-* For any other queries, reach our [Syncfusion support team](https://www.syncfusion.com/support/directtrac/incidents/newincident?utm_source=github&utm_medium=flutter_widgets) or post the queries through the [Community forums](https://www.syncfusion.com/forums?utm_source=github&utm_medium=flutter_widgets) and submit a feature request or a bug through our [Feedback portal](https://www.syncfusion.com/feedback/flutter).
-* To renew the subscription, click [renew](https://www.syncfusion.com/sales/products?utm_source=github&utm_medium=flutter_widgets) or contact our sales team at <salessupport@syncfusion.com>.
-
-## <a name='screenshots'></a>Screenshots ##
-
-### Chart types
-<p align="center">
-    <img src="https://cdn.syncfusion.com/content/images/FTControl/chartTypes.png" alt="Chart Types"/>
-</p>
-
-### Axis types
-<p align="center">    
-    <img src="https://cdn.syncfusion.com/content/images/FTControl/axisTypes.png" alt="Axis Types"/>
-</p>
-
-### User interactions
-<p align="center">
-    <img src="https://cdn.syncfusion.com/content/images/FTControl/userInteraction.gif" alt="User Interaction"/>
-</p>
-
-## <a name="disclaimer"></a>Disclaimer ##
-
-Syncfusion has no liability for any damage or consequence that may arise by the use or viewing of the examples. The examples are for demonstrative purposes and if you choose to use or access the examples you agree to not hold Syncfusion liable, in any form, for any damage that is related to use, accessing or otherwise viewing the examples. By accessing, viewing, or otherwise seeing the examples you acknowledge and agree Syncfusion’s examples will not allow you to seek injunctive relief in any form for any claim related to the sample. If you do not agree to this, do not view, access, utilize or otherwise do anything with Syncfusion’s examples.
-
-## <a name="about-syncfusion"></a>About Syncfusion ##
-Founded in 2001 and headquartered in Research Triangle Park, N.C., Syncfusion has more than 20,000 customers and more than 1 million users, including large financial institutions, Fortune 500 companies, and global IT consultancies.
-
-Today we provide 1,000+ controls and frameworks for web ([ASP.NET Core](https://www.syncfusion.com/aspnet-core-ui-controls), [ASP.NET MVC](https://www.syncfusion.com/aspnet-mvc-ui-controls), [ASP.NET WebForms](https://www.syncfusion.com/jquery/aspnet-web-forms-ui-controls), [JavaScript](https://www.syncfusion.com/javascript-ui-controls), [Angular](https://www.syncfusion.com/angular-ui-components), [React](https://www.syncfusion.com/react-ui-components), [Vue](https://www.syncfusion.com/vue-ui-components), and [Blazor](https://www.syncfusion.com/blazor-components), mobile ([Xamarin](https://www.syncfusion.com/xamarin-ui-controls), [Flutter](https://www.syncfusion.com/flutter-widgets), [UWP](https://www.syncfusion.com/uwp-ui-controls), and [JavaScript](https://www.syncfusion.com/javascript-ui-controls)), and desktop development ([WinForms](https://www.syncfusion.com/winforms-ui-controls), [WPF](https://www.syncfusion.com/products/wpf-ui-controls), and [UWP](https://www.syncfusion.com/uwp-ui-controls)). We provide ready-to deploy enterprise software for dashboards, reports, data integration, and big data processing. Many customers have saved millions in licensing fees by deploying our software.
+For help getting started with Flutter, view our
+[online documentation](https://flutter.dev/docs), which offers tutorials,
+samples, guidance on mobile development, and a full API reference.

analysis_options.yaml

@@ -1,167 +1 @@
-# Specify analysis options.
-#
-# Until there are meta linter rules, each desired lint must be explicitly enabled.
-# See: https://github.com/dart-lang/linter/issues/288
-#
-# For a list of lints, see: http://dart-lang.github.io/linter/lints/
-# See the configuration guide for more
-# https://github.com/dart-lang/sdk/tree/master/pkg/analyzer#configuring-the-analyzer
-#
-# There are other similar analysis options files in the flutter repos,
-# which should be kept in sync with this file:
-#
-#   - analysis_options.yaml (this file)
-#   - packages/flutter/lib/analysis_options_user.yaml
-#   - https://github.com/flutter/plugins/blob/master/analysis_options.yaml
-#   - https://github.com/flutter/engine/blob/master/analysis_options.yaml
-#
-# This file contains the analysis options used by Flutter tools, such as IntelliJ,
-# Android Studio, and the `flutter analyze` command.
-
-analyzer:
-  strong-mode:
-    implicit-dynamic: false
-  errors:
-    # treat missing required parameters as a warning (not a hint)
-    missing_required_param: warning
-    # treat missing returns as a warning (not a hint)
-    missing_return: warning
-    # allow having TODOs in the code
-    todo: ignore
-  exclude:
-    - 'bin/cache/**'
-    # the following two are relative to the stocks example and the flutter package respectively
-    # see https://github.com/dart-lang/sdk/issues/28463
-    - 'lib/i18n/stock_messages_*.dart'
-    - 'lib/src/http/**'
-
-linter:
-  rules:
-    # these rules are documented on and in the same order as
-    # the Dart Lint rules page to make maintenance easier
-    # https://github.com/dart-lang/linter/blob/master/example/all.yaml
-    - always_declare_return_types
-    - always_put_control_body_on_new_line
-    # - always_put_required_named_parameters_first # we prefer having parameters in the same order as fields https://github.com/flutter/flutter/issues/10219
-    - always_require_non_null_named_parameters
-    - always_specify_types
-    # - avoid_annotating_with_dynamic # conflicts with always_specify_types
-    - avoid_as
-    # - avoid_bool_literals_in_conditional_expressions # not yet tested
-    # - avoid_catches_without_on_clauses # we do this commonly
-    # - avoid_catching_errors # we do this commonly
-    - avoid_classes_with_only_static_members
-    # - avoid_double_and_int_checks # only useful when targeting JS runtime
-    - avoid_empty_else
-    - avoid_field_initializers_in_const_classes
-    - avoid_function_literals_in_foreach_calls
-    # - avoid_implementing_value_types # not yet tested
-    - avoid_init_to_null
-    # - avoid_js_rounded_ints # only useful when targeting JS runtime
-    - avoid_null_checks_in_equality_operators
-    # - avoid_positional_boolean_parameters # not yet tested
-    # - avoid_private_typedef_functions # we prefer having typedef (discussion in https://github.com/flutter/flutter/pull/16356)
-    - avoid_relative_lib_imports
-    - avoid_renaming_method_parameters
-    - avoid_return_types_on_setters
-    # - avoid_returning_null # there are plenty of valid reasons to return null
-    - avoid_returning_null_for_void
-    # - avoid_returning_this # there are plenty of valid reasons to return this
-    # - avoid_setters_without_getters # not yet tested
-    # - avoid_single_cascade_in_expression_statements # not yet tested
-    - avoid_slow_async_io
-    - avoid_types_as_parameter_names
-    # - avoid_types_on_closure_parameters # conflicts with always_specify_types
-    - avoid_unused_constructor_parameters
-    - avoid_void_async
-    - await_only_futures
-    - camel_case_types
-    - cancel_subscriptions
-    # - cascade_invocations # not yet tested
-    # - close_sinks # not reliable enough
-    # - comment_references # blocked on https://github.com/flutter/flutter/issues/20765
-    # - constant_identifier_names # needs an opt-out https://github.com/dart-lang/linter/issues/204
-    - control_flow_in_finally
-    # - curly_braces_in_flow_control_structures # not yet tested
-    - directives_ordering
-    - empty_catches
-    - empty_constructor_bodies
-    - empty_statements
-    # - file_names # not yet tested
-    - flutter_style_todos
-    - hash_and_equals
-    - implementation_imports
-    # - invariant_booleans # too many false positives: https://github.com/dart-lang/linter/issues/811
-    - iterable_contains_unrelated_type
-    # - join_return_with_assignment # not yet tested
-    - library_names
-    - library_prefixes
-    # - lines_longer_than_80_chars # not yet tested
-    - list_remove_unrelated_type
-    # - literal_only_boolean_expressions # too many false positives: https://github.com/dart-lang/sdk/issues/34181
-    - no_adjacent_strings_in_list
-    - no_duplicate_case_values
-    - non_constant_identifier_names
-    # - null_closures  # not yet tested
-    # - omit_local_variable_types # opposite of always_specify_types
-    # - one_member_abstracts # too many false positives
-    # - only_throw_errors # https://github.com/flutter/flutter/issues/5792
-    - package_api_docs
-    - package_names
-    - package_prefixed_library_names
-    # - parameter_assignments # we do this commonly
-    - prefer_adjacent_string_concatenation
-    - prefer_asserts_in_initializer_lists
-    - prefer_collection_literals
-    - prefer_conditional_assignment
-    - prefer_const_constructors
-    - prefer_const_constructors_in_immutables
-    - prefer_const_declarations
-    - prefer_const_literals_to_create_immutables
-    # - prefer_constructors_over_static_methods # not yet tested
-    - prefer_contains
-    - prefer_equal_for_default_values
-    # - prefer_expression_function_bodies # conflicts with https://github.com/flutter/flutter/wiki/Style-guide-for-Flutter-repo#consider-using--for-short-functions-and-methods
-    - prefer_final_fields
-    - prefer_final_locals
-    - prefer_foreach
-    # - prefer_function_declarations_over_variables # not yet tested
-    - prefer_generic_function_type_aliases
-    - prefer_initializing_formals
-    # - prefer_int_literals # not yet tested
-    # - prefer_interpolation_to_compose_strings # not yet tested
-    - prefer_is_empty
-    - prefer_is_not_empty
-    - prefer_iterable_whereType
-    # - prefer_mixin # https://github.com/dart-lang/language/issues/32
-    - prefer_single_quotes
-    - prefer_typing_uninitialized_variables
-    - prefer_void_to_null
-    # - public_member_api_docs # enabled on a case-by-case basis; see e.g. packages/analysis_options.yaml
-    - recursive_getters
-    - slash_for_doc_comments
-    - sort_constructors_first
-    - sort_pub_dependencies
-    - sort_unnamed_constructors_first
-    - test_types_in_equals
-    - throw_in_finally
-    # - type_annotate_public_apis # subset of always_specify_types
-    - type_init_formals
-    # - unawaited_futures # too many false positives
-    - unnecessary_brace_in_string_interps
-    - unnecessary_const
-    - unnecessary_getters_setters
-    # - unnecessary_lambdas # has false positives: https://github.com/dart-lang/linter/issues/498
-    - unnecessary_new
-    - unnecessary_null_aware_assignments
-    - unnecessary_null_in_if_null_operators
-    - unnecessary_parenthesis
-    - unnecessary_statements
-    - unnecessary_this
-    - unrelated_type_equality_checks
-    - use_rethrow_when_possible
-    # - use_setters_to_change_properties # not yet tested
-    # - use_string_buffers # has false positives: https://github.com/dart-lang/sdk/issues/34182
-    # - use_to_and_as_if_applicable # has false positives, so we prefer to catch this by code-review
-    - valid_regexps
-    # - void_checks # not yet tested
+include: lib/analysis_options.yaml

android/.gradle/4.10.2/taskHistory/taskHistory.lock

@@ -1,5 +1,6 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     package="com.syncfusion.flutter_examples">
+    <uses-permission android:name="android.permission.INTERNET"></uses-permission>
     <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"></uses-permission>
     <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"></uses-permission>
     <!-- io.flutter.app.FlutterApplication is an android.app.Application that

android/app/src/main/AndroidManifest.xml

@@ -26,7 +26,7 @@ protected void onCreate(Bundle savedInstanceState) {
     new MethodChannel(getFlutterView(), "launchFile").setMethodCallHandler(new MethodChannel.MethodCallHandler() {
       @Override
       public void onMethodCall(MethodCall call, MethodChannel.Result result) {
-        if (call.method.equals("viewPdf")) {
+        if (call.method.equals("viewPdf") || call.method.equals("viewExcel")) {
           String path = call.argument("file_path");
           if(!checkPermission(Manifest.permission.READ_EXTERNAL_STORAGE)){
             requestPermission(new String[]{Manifest.permission.READ_EXTERNAL_STORAGE});
@@ -65,7 +65,10 @@ private void launchFile(String filePath){
       }else {
         uri = Uri.fromFile(file);
       }
-      intent.setDataAndType(uri, "application/pdf");
+      if(filePath.contains(".pdf"))
+        intent.setDataAndType(uri, "application/pdf");
+      else
+        intent.setDataAndType(uri, "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet");
       try{
         this.startActivity(intent);
       }catch (Exception e){