Hello,
I am using Xam.Plugin.Media in my xamarin forms (Xamarin.Forms 4.5.0.530) mobile app. App gets crashed after camera capture strangely without any error. Camera captured image also gets stored in the desired folder I set. I don't know how to proceed further, would appreciate if someone could help me move forward.
Code snippet and other App details are attached below:
Shared Project
XAML
<ContentPage.Resources>
< ResourceDictionary>
< services:Null2StringConverter x:Key="Null2String"/>
< services:ByteToImageFieldConverter x:Key="ByteArrayToImage"/>
< /ResourceDictionary>
</ContentPage.Resources>
<Grid ColumnSpacing="16">
<StackLayout Grid.Column="0">
<Image
x:Name="PhotoImage"
Aspect="AspectFit"
Source="{Binding PhotoByte, Converter={StaticResource ByteArrayToImage}, Mode=TwoWay}" />
</StackLayout>
<StackLayout Grid.Column="1">
<Button Grid.Column="1" WidthRequest="200"
x:Name= "btnTake"
Text = "Take Picture"
Style="{StaticResource ButtonBlueWhite}"
HorizontalOptions = "End"/>
</StackLayout>
</Grid>
View
public partial class PODUpdate : ContentPage
{
PODViewModel viewModel;
public PODUpdate()
{
InitializeComponent();
BindingContext = viewModel = new PODViewModel(2);
}
private void BtnTake_Clicked(object sender, EventArgs e)
{
PictureClick();
}
private async void PictureClick()
{
try
{
if (!CrossMedia.Current.IsCameraAvailable || !CrossMedia.Current.IsTakePhotoSupported)
{
await DisplayAlert("No Camera", ":( No camera available.", "OK");
return;
}
string mFileName = DateTime.Now.Year.ToString() +
DateTime.Now.Month.ToString() +
DateTime.Now.Day.ToString() +
DateTime.Now.Hour.ToString() +
DateTime.Now.Minute.ToString() +
DateTime.Now.Second.ToString();
await CrossMedia.Current.Initialize();
var photo = await CrossMedia.Current.TakePhotoAsync(new Plugin.Media.Abstractions.StoreCameraMediaOptions
{
MaxWidthHeight = 2500,
CompressionQuality = 80,
DefaultCamera = Plugin.Media.Abstractions.CameraDevice.Front,
Name = mFileName,
PhotoSize = Plugin.Media.Abstractions.PhotoSize.Small
});
if (photo == null)
return;
if (photo != null)
{
viewModel.IsPhotoTaken = true;
viewModel.PhotoByte = System.IO.File.ReadAllBytes(photo.Path);
photo.Dispose();
}
}
catch (Exception ex)
{
await DisplayAlert(this.Title, ex.Message+ ex.InnerException, "Ok");
return;
}
}
}
Android Project
AndroidManifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android" android:versionCode="1" android:versionName="1.0" package="com.Flyking.ibots.netmobile" android:installLocation="auto">
<uses-sdk android:minSdkVersion="21" android:targetSdkVersion="28" />
<application android:label="Ibots.NetMobile.Android" android:icon="@drawable/FlykingIcon">
<provider android:name="android.support.v4.content.FileProvider" android:authorities="com.Flyking.ibots.netmobile.fileprovider" android:exported="false"
android:largeHeap="true" android:grantUriPermissions="true">
<meta-data android:name="android.support.FILE_PROVIDER_PATHS" android:resource="@xml/file_paths"></meta-data>
</provider>
</application>
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.CAMERA" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.FLASHLIGHT" />
</manifest>
AssemblyInfo.cs
using System.Reflection;
using System.Runtime.CompilerServices;
using System.Runtime.InteropServices;
using Android.App;
// General Information about an assembly is controlled through the following
// set of attributes. Change these attribute values to modify the information
// associated with an assembly.
[assembly: AssemblyTitle("Ibots.NetMobile.Android")]
[assembly: AssemblyDescription("")]
[assembly: AssemblyConfiguration("")]
[assembly: AssemblyCompany("")]
[assembly: AssemblyProduct("Ibots.NetMobile.Android")]
[assembly: AssemblyCopyright("Copyright © 2014")]
[assembly: AssemblyTrademark("")]
[assembly: AssemblyCulture("")]
[assembly: ComVisible(false)]
// Version information for an assembly consists of the following four values:
//
// Major Version
// Minor Version
// Build Number
// Revision
//
// You can specify all the values or you can default the Build and Revision Numbers
// by using the '*' as shown below:
// [assembly: AssemblyVersion("1.0.*")]
[assembly: AssemblyVersion("1.0.0.0")]
[assembly: AssemblyFileVersion("1.0.0.0")]
// Add some common permissions, these can be removed if not needed
[assembly: UsesPermission(Android.Manifest.Permission.Internet)]
[assembly: UsesPermission(Android.Manifest.Permission.WriteExternalStorage)]
#if DEBUG
[assembly: Application(Debuggable = true, UsesCleartextTraffic = true)]
#else
[assembly: Application(Debuggable = false, UsesCleartextTraffic = true)]
#endif
[assembly: UsesPermission(Android.Manifest.Permission.Camera)]
[assembly: UsesFeature("android.hardware.camera", Required = true)]
[assembly: UsesFeature("android.hardware.camera.autofocus", Required = true)]
MainActivity.cs
public class MainActivity : global::Xamarin.Forms.Platform.Android.FormsAppCompatActivity
{
protected override void OnCreate(Bundle savedInstanceState)
{
TabLayoutResource = Resource.Layout.Tabbar;
ToolbarResource = Resource.Layout.Toolbar;
base.OnCreate(savedInstanceState);
Rg.Plugins.Popup.Popup.Init(this, savedInstanceState);
Xamarin.Essentials.Platform.Init(this, savedInstanceState);
global::Xamarin.Forms.Forms.Init(this, savedInstanceState);
ZXing.Net.Mobile.Forms.Android.Platform.Init();
LoadApplication(new App());
}
public override void OnRequestPermissionsResult(int requestCode, string[] permissions, [GeneratedEnum] Android.Content.PM.Permission[] grantResults)
{
global::ZXing.Net.Mobile.Forms.Android.PermissionsHandler.OnRequestPermissionsResult(requestCode, permissions, grantResults);
Xamarin.Essentials.Platform.OnRequestPermissionsResult(requestCode, permissions, grantResults);
base.OnRequestPermissionsResult(requestCode, permissions, grantResults);
}
}
Thanks - G Rajesh
