Crop and save the image - xamarin.android

Question

I used the following method as I wanted:
1-I want to open the camera, select image, crop and save the image in imageview
2- Crop and save a saved image inside the device in imageview
erro
open camera
open gallery
full project
https://drive.google.com/file/d/1tUSTyiq5qUPpaY6z2Jd1m2tv_HRE-QuL/view?usp=sharingusp=sharing
public class MainActivity : AppCompatActivity
{
ImageView imageView;
Android.Support.V7.Widget.Toolbar toolbar;
File file;
Android.Net.Uri uri;
Intent CamIntent, GalIntent, CropIntent;
const int RequestPermissionCode = 1;
protected override void OnCreate(Bundle bundle)
{
base.OnCreate(bundle);
SetContentView(Resource.Layout.Main);
toolbar = FindViewById<Android.Support.V7.Widget.Toolbar>(Resource.Id.toolbar);
toolbar.Title = "Crop Image";
toolbar.SetTitleTextColor(Android.Graphics.Color.White);
SetSupportActionBar(toolbar);
imageView = FindViewById<ImageView>(Resource.Id.imageView);
int permissionCheck = (int)ContextCompat.CheckSelfPermission(this, Manifest.Permission.Camera);
if (permissionCheck == (int)Permission.Denied)
RequestRuntimePermission();
}
private void RequestRuntimePermission()
{
if (ActivityCompat.ShouldShowRequestPermissionRationale(this, Manifest.Permission.Camera))
Toast.MakeText(this, "CAMERA permission will allows us to access CAMERA app", ToastLength.Short).Show();
else
ActivityCompat.RequestPermissions(this, new String[] { Manifest.Permission.Camera }, RequestPermissionCode);
}
public override bool OnCreateOptionsMenu(IMenu menu)
{
MenuInflater.Inflate(Resource.Menu.menu_main, menu);
return true;
}
public override bool OnOptionsItemSelected(IMenuItem item)
{
if (item.ItemId == Resource.Id.btn_camera)
CameraOpen();
else if (item.ItemId == Resource.Id.btn_gallery)
GalleryOpen();
return true;
}
private void GalleryOpen()
{
GalIntent = new Intent(Intent.ActionPick, MediaStore.Images.Media.ExternalContentUri);
StartActivityForResult(Intent.CreateChooser(GalIntent, "Select image from Gallery"), 2);
}
private void CameraOpen()
{
CamIntent = new Intent(MediaStore.ActionImageCapture);
file = new File(Android.OS.Environment.ExternalStorageDirectory, "file_image" + DateTime.Now + ".jpg");
uri = Android.Net.Uri.FromFile(file);
CamIntent.PutExtra(MediaStore.ExtraOutput, uri);
CamIntent.PutExtra("return-data", true);
StartActivityForResult(CamIntent, 0);
}
protected override void OnActivityResult(int requestCode, [GeneratedEnum] Result resultCode, Intent data)
{
if (requestCode == 0 && resultCode == Result.Ok)
CropImage();
else if (requestCode == 2)
{
if (data != null)
{
uri = data.Data;
CropImage();
}
}
else if (requestCode == 1)
{
if (data != null)
{
Bundle bundle = data.Extras;
Bitmap bitmap = (Bitmap)bundle.GetParcelable("data");
imageView.SetImageBitmap(bitmap);
}
}
}
private void CropImage()
{
try
{
CropIntent = new Intent("com.android.camera.action.CROP");
CropIntent.SetDataAndType(uri, "image/*");
CropIntent.PutExtra("crop", "true");
CropIntent.PutExtra("outputX", 180);
CropIntent.PutExtra("outputY", 180);
CropIntent.PutExtra("aspectX", 3);
CropIntent.PutExtra("aspectY", 4);
CropIntent.PutExtra("scaleUpIfNeeded", true);
CropIntent.PutExtra("return-data", true);
StartActivityForResult(CropIntent, 1);
}
catch
{
}
}
public override void OnRequestPermissionsResult(int requestCode, string[] permissions, [GeneratedEnum] Permission[] grantResults)
{
switch (requestCode)
{
case RequestPermissionCode:
{
if (grantResults.Length > 0 && grantResults[0] == Permission.Granted)
Toast.MakeText(this, "Permission Granted", ToastLength.Short).Show();
else
Toast.MakeText(this, "Permission Canceled", ToastLength.Short).Show();
}
break;
}
}
}

Answer 1

1-I want to open the camera, select image, crop and save the image in imageview
2- Crop and save a saved image inside the device in imageview
If you want to do this, I suggest you can use XamarinAndroidImageCropper to do.
Firstly, install XamarinAndroidImageCropper by Manage Nuget package...., then add permissions to manifest.
<uses-permission android:name="android.permission.CAMERA" />
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
Using CropImageView like this:
<com.theartofdev.edmodo.cropper.CropImageView
android:id="#+id/cropImageView"
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:cropAspectRatioX="16"
app:cropAspectRatioY="9"
app:cropBackgroundColor="#88AA66CC"
app:cropBorderCornerColor="#android:color/holo_blue_bright"
app:cropBorderCornerOffset="0dp"
app:cropBorderCornerThickness="5dp"
app:cropBorderLineColor="#android:color/holo_green_light"
app:cropBorderLineThickness="1dp"
app:cropGuidelines="on"
app:cropGuidelinesColor="#android:color/holo_red_dark"
app:cropInitialCropWindowPaddingRatio="0"
app:cropSnapRadius="0dp"/>
More detailed info, please take a look:
https://github.com/mikescandy/Xamarin-Cropper