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merged 2 commits into from
Nov 18, 2024
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919503_f1 Save a sample in Flutter WASM #1020

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919503_f1 Save a sample in Flutter WASM
sameerkhan001 Nov 18, 2024
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919503_f1 Resolved the given feedback.
sameerkhan001 Nov 18, 2024
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50 changes: 45 additions & 5 deletions Flutter/pdf/getting-started.md
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Original file line number Diff line number Diff line change
Expand Up @@ -19,7 +19,7 @@ Create a simple project using the instructions given in the [`Getting Started wi

Add the Syncfusion Flutter PDF dependency to your pub spec file.

{% highlight dart %}
{% highlight dart %}

dependencies:
syncfusion_flutter_pdf: ^xx.x.xx
Expand All @@ -32,7 +32,7 @@ N> Here **xx.x.xx** denotes the current version of [`Syncfusion Flutter PDF`](ht

Run the following command to get the required packages.

{% highlight dart %}
{% highlight dart %}

$ flutter pub get

Expand All @@ -42,15 +42,15 @@ $ flutter pub get

Import the following package in your Dart code.

{% highlight dart %}
{% highlight dart %}

import 'package:syncfusion_flutter_pdf/pdf.dart';

{% endhighlight %}

Add a new button widget as a child of your container widget.

{% highlight dart %}
{% highlight dart %}

@override
Widget build(BuildContext context) {
Expand Down Expand Up @@ -97,7 +97,7 @@ You can save and open a PDF document in mobile by using the following steps:

Add the following packages to your pub spec file.

{% highlight dart %}
{% highlight dart %}

path_provider: ^2.0.7
open_file: ^3.2.1
Expand Down Expand Up @@ -178,6 +178,46 @@ Add the following code in the header section of index.html file under the web fo

{% endhighlight %}

## Save and download a PDF document in WASM

step 1: Add the [web](https://pub.dev/packages/web) package as a dependency in your **pubspec.yaml** file.

step 2: Create a new Dart file called **save_file_wasm.dart**.

step 3: Add the following code:

**Import package**

{% highlight dart %}

import 'dart:convert';
import 'package:web/web.dart' as web;

{% endhighlight %}

To enable file saving and launching for download in a web environment, include the following code snippet within the **saveAndLaunchFile** method.

{% highlight dart %}

// Function to save and launch a file for download in a web environment
Future<void> saveAndLaunchFile(List<int> bytes, String fileName) async {
final web.HTMLAnchorElement anchor =
web.document.createElement('a') as web.HTMLAnchorElement
..href = "data:application/octet-stream;base64,${base64Encode(bytes)}"
..style.display = 'none'
..download = fileName;

// Insert the new element into the DOM
web.document.body!.appendChild(anchor);

// Initiate the download
anchor.click();
// Clean up the DOM by removing the anchor element
web.document.body!.removeChild(anchor);
}

{% endhighlight %}

By executing the above code sample, you will get the PDF document as follows.

![Getting started PDF](images/getting-started/default.jpg)
Expand Down