File Picker window not open in xamarin forms? - xamarin

Question

on Button click file picker window not open in xamarin forms-
I am using Xam.Plugin.FilePicker
Here is my button event code-
async void FilePickerEvent(object sender, EventArgs e)
{
try
{
FileData filedata = new FileData();
filedata = await CrossFilePicker.Current.PickFile();
byte[] data = filedata.DataArray;
string name = filedata.FileName;
foreach(byte b in filedata.DataArray)
{
string attachment = b.ToString();
}
}
catch (Exception ex)
{
string msg = ex.Message;
}
}

Answer 1

I tried this plugin on Android device and it works well. I installed the plugin in all projects and then added these permissions to AndroidManifest.xml file as it is in the documentation.
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
Then in my MainPage.xaml I created a button
<Button Text="Open File" Clicked="Button_Clicked" />
And in my MainPage.xaml.cs created event
private async void Button_Clicked(object sender, EventArgs e)
{
var file = await CrossFilePicker.Current.PickFile();
}
I picked the file and retrieve the property FileName and DataArray without any problem.
There is a thread on xamarin forum or there is a issue list on their github.

Answer 2

There is a newer forked github project that received quite some fixes, e.g. for Android picking from download folder, OneDrive or Google Drive storage. The project is here:
https://github.com/jfversluis/FilePicker-Plugin-for-Xamarin-and-Windows
(note: I'm one of the contributors).
You just have to change the NuGet package name to Xamarin.Plugin.FilePicker, the API is the same.