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[release/10.0.1xx-preview7] [.NET 10] Implement auto-rotate images based on EXIF information & Preserve EXIF information for MediaPicker #30887

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Merged
jfversluis merged 8 commits into from
Jul 29, 2025
Merged

[release/10.0.1xx-preview7] [.NET 10] Implement auto-rotate images based on EXIF information & Preserve EXIF information for MediaPicker #30887

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1a8676c
Implement MediaPicker Image Rotate
jfversluis Jul 2, 2025
3cd5289
Refactor into ImageProcessor
jfversluis Jul 2, 2025
89ee176
Optimize iOS
jfversluis Jul 2, 2025
bb6def7
Fix Windows build & minor code styling
jfversluis Jul 2, 2025
c21b024
Add PreserveMetaData
jfversluis Jul 3, 2025
3b6cfbc
Fix Windows build
jfversluis Jul 3, 2025
369c4f2
PR Feedback
jfversluis Jul 18, 2025
3cfb5d3
Apply suggestion from @jfversluis
jfversluis Jul 18, 2025
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22 changes: 22 additions & 0 deletions src/Essentials/samples/Samples/View/MediaPickerPage.xaml
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Original file line number Diff line number Diff line change
Expand Up @@ -89,6 +89,28 @@
HorizontalOptions="Center"
FontAttributes="Bold" />
</Grid>

<!-- Auto-rotate Image -->
<Grid ColumnDefinitions="2*,Auto">
<Label Grid.Column="0"
Text="Auto-rotate from EXIF"
VerticalOptions="Center"
TextColor="{AppThemeBinding Light=#6C757D, Dark=#CED4DA}" />
<Switch Grid.Column="1"
IsToggled="{Binding PickerRotateImage, Mode=TwoWay}"
OnColor="{AppThemeBinding Light=#007BFF, Dark=#0D6EFD}" />
</Grid>

<!-- Preserve Metadata -->
<Grid ColumnDefinitions="2*,Auto">
<Label Grid.Column="0"
Text="Preserve Metadata"
VerticalOptions="Center"
TextColor="{AppThemeBinding Light=#6C757D, Dark=#CED4DA}" />
<Switch Grid.Column="1"
IsToggled="{Binding PickerPreserveMetaData, Mode=TwoWay}"
OnColor="{AppThemeBinding Light=#007BFF, Dark=#0D6EFD}" />
</Grid>
</VerticalStackLayout>
</Border>

Expand Down
20 changes: 20 additions & 0 deletions src/Essentials/samples/Samples/ViewModel/MediaPickerViewModel.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -28,6 +28,8 @@ public class MediaPickerViewModel : BaseViewModel
int pickerCompressionQuality = 100;
int pickerMaximumWidth = 0;
int pickerMaximumHeight = 0;
bool pickerRotateImage = false;
bool pickerPreserveMetaData = true;
long imageByteLength = 0;
string imageDimensions = "";
private ObservableCollection<PhotoInfo> photoList = [];
Expand Down Expand Up @@ -74,6 +76,18 @@ public int PickerMaximumHeight
set => SetProperty(ref pickerMaximumHeight, value);
}

public bool PickerRotateImage
{
get => pickerRotateImage;
set => SetProperty(ref pickerRotateImage, value);
}

public bool PickerPreserveMetaData
{
get => pickerPreserveMetaData;
set => SetProperty(ref pickerPreserveMetaData, value);
}

public long ImageByteLength
{
get => imageByteLength;
Expand Down Expand Up @@ -121,6 +135,8 @@ async void DoPickPhoto()
CompressionQuality = PickerCompressionQuality,
MaximumWidth = PickerMaximumWidth > 0 ? PickerMaximumWidth : null,
MaximumHeight = PickerMaximumHeight > 0 ? PickerMaximumHeight : null,
RotateImage = PickerRotateImage,
PreserveMetaData = PickerPreserveMetaData
});

await LoadPhotoAsync(photo);
Expand All @@ -143,6 +159,8 @@ async void DoCapturePhoto()
CompressionQuality = PickerCompressionQuality,
MaximumWidth = PickerMaximumWidth > 0 ? PickerMaximumWidth : null,
MaximumHeight = PickerMaximumHeight > 0 ? PickerMaximumHeight : null,
RotateImage = PickerRotateImage,
PreserveMetaData = PickerPreserveMetaData
});

await LoadPhotoAsync(photo);
Expand All @@ -163,6 +181,8 @@ async void DoPickVideo()
{
Title = "Pick a video",
SelectionLimit = PickerSelectionLimit,
RotateImage = PickerRotateImage,
PreserveMetaData = PickerPreserveMetaData
});

ShowPhoto = false;
Expand Down
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