631 lines
19 KiB
C#
631 lines
19 KiB
C#
using System;
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using System.IO;
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using UnityEngine;
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using Object = UnityEngine.Object;
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#if !UNITY_EDITOR && ( UNITY_ANDROID || UNITY_IOS )
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using NativeGalleryNamespace;
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#endif
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public static class NativeGallery
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{
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public struct ImageProperties
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{
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public readonly int width;
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public readonly int height;
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public readonly string mimeType;
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public readonly ImageOrientation orientation;
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public ImageProperties( int width, int height, string mimeType, ImageOrientation orientation )
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{
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this.width = width;
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this.height = height;
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this.mimeType = mimeType;
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this.orientation = orientation;
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}
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}
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public struct VideoProperties
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{
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public readonly int width;
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public readonly int height;
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public readonly long duration;
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public readonly float rotation;
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public VideoProperties( int width, int height, long duration, float rotation )
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{
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this.width = width;
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this.height = height;
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this.duration = duration;
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this.rotation = rotation;
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}
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}
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public enum Permission { Denied = 0, Granted = 1, ShouldAsk = 2 };
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// EXIF orientation: http://sylvana.net/jpegcrop/exif_orientation.html (indices are reordered)
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public enum ImageOrientation { Unknown = -1, Normal = 0, Rotate90 = 1, Rotate180 = 2, Rotate270 = 3, FlipHorizontal = 4, Transpose = 5, FlipVertical = 6, Transverse = 7 };
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public delegate void MediaSaveCallback( string error );
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public delegate void MediaPickCallback( string path );
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public delegate void MediaPickMultipleCallback( string[] paths );
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#region Platform Specific Elements
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#if !UNITY_EDITOR && UNITY_ANDROID
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private static AndroidJavaClass m_ajc = null;
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private static AndroidJavaClass AJC
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{
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get
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{
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if( m_ajc == null )
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m_ajc = new AndroidJavaClass( "com.yasirkula.unity.NativeGallery" );
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return m_ajc;
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}
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}
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private static AndroidJavaObject m_context = null;
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private static AndroidJavaObject Context
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{
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get
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{
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if( m_context == null )
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{
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using( AndroidJavaObject unityClass = new AndroidJavaClass( "com.unity3d.player.UnityPlayer" ) )
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{
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m_context = unityClass.GetStatic<AndroidJavaObject>( "currentActivity" );
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}
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}
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return m_context;
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}
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}
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#elif !UNITY_EDITOR && UNITY_IOS
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[System.Runtime.InteropServices.DllImport( "__Internal" )]
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private static extern int _NativeGallery_CheckPermission();
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[System.Runtime.InteropServices.DllImport( "__Internal" )]
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private static extern int _NativeGallery_RequestPermission();
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[System.Runtime.InteropServices.DllImport( "__Internal" )]
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private static extern int _NativeGallery_CanOpenSettings();
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[System.Runtime.InteropServices.DllImport( "__Internal" )]
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private static extern void _NativeGallery_OpenSettings();
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[System.Runtime.InteropServices.DllImport( "__Internal" )]
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private static extern void _NativeGallery_ImageWriteToAlbum( string path, string album );
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[System.Runtime.InteropServices.DllImport( "__Internal" )]
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private static extern void _NativeGallery_VideoWriteToAlbum( string path, string album );
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[System.Runtime.InteropServices.DllImport( "__Internal" )]
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private static extern void _NativeGallery_PickImage( string imageSavePath, int maxSize );
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[System.Runtime.InteropServices.DllImport( "__Internal" )]
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private static extern void _NativeGallery_PickVideo();
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[System.Runtime.InteropServices.DllImport( "__Internal" )]
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private static extern string _NativeGallery_GetImageProperties( string path );
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[System.Runtime.InteropServices.DllImport( "__Internal" )]
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private static extern string _NativeGallery_GetVideoProperties( string path );
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[System.Runtime.InteropServices.DllImport( "__Internal" )]
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private static extern string _NativeGallery_LoadImageAtPath( string path, string temporaryFilePath, int maxSize );
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#endif
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#if !UNITY_EDITOR && ( UNITY_ANDROID || UNITY_IOS )
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private static string m_temporaryImagePath = null;
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private static string TemporaryImagePath
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{
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get
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{
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if( m_temporaryImagePath == null )
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{
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m_temporaryImagePath = Path.Combine( Application.temporaryCachePath, "__tmpImG" );
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Directory.CreateDirectory( Application.temporaryCachePath );
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}
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return m_temporaryImagePath;
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}
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}
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#endif
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#if !UNITY_EDITOR && UNITY_IOS
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private static string m_iOSSelectedImagePath = null;
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private static string IOSSelectedImagePath
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{
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get
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{
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if( m_iOSSelectedImagePath == null )
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{
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m_iOSSelectedImagePath = Path.Combine( Application.temporaryCachePath, "tmp.png" );
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Directory.CreateDirectory( Application.temporaryCachePath );
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}
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return m_iOSSelectedImagePath;
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}
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}
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#endif
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#endregion
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#region Runtime Permissions
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public static Permission CheckPermission( bool readPermissionOnly = false )
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{
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#if !UNITY_EDITOR && UNITY_ANDROID
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Permission result = (Permission) AJC.CallStatic<int>( "CheckPermission", Context, readPermissionOnly );
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if( result == Permission.Denied && (Permission) PlayerPrefs.GetInt( "NativeGalleryPermission", (int) Permission.ShouldAsk ) == Permission.ShouldAsk )
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result = Permission.ShouldAsk;
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return result;
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#elif !UNITY_EDITOR && UNITY_IOS
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return (Permission) _NativeGallery_CheckPermission();
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#else
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return Permission.Granted;
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#endif
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}
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public static Permission RequestPermission( bool readPermissionOnly = false )
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{
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#if !UNITY_EDITOR && UNITY_ANDROID
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object threadLock = new object();
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lock( threadLock )
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{
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NGPermissionCallbackAndroid nativeCallback = new NGPermissionCallbackAndroid( threadLock );
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AJC.CallStatic( "RequestPermission", Context, nativeCallback, readPermissionOnly, PlayerPrefs.GetInt( "NativeGalleryPermission", (int) Permission.ShouldAsk ) );
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if( nativeCallback.Result == -1 )
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System.Threading.Monitor.Wait( threadLock );
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if( (Permission) nativeCallback.Result != Permission.ShouldAsk && PlayerPrefs.GetInt( "NativeGalleryPermission", -1 ) != nativeCallback.Result )
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{
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PlayerPrefs.SetInt( "NativeGalleryPermission", nativeCallback.Result );
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PlayerPrefs.Save();
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}
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return (Permission) nativeCallback.Result;
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}
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#elif !UNITY_EDITOR && UNITY_IOS
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return (Permission) _NativeGallery_RequestPermission();
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#else
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return Permission.Granted;
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#endif
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}
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public static bool CanOpenSettings()
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{
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#if !UNITY_EDITOR && UNITY_IOS
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return _NativeGallery_CanOpenSettings() == 1;
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#else
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return true;
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#endif
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}
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public static void OpenSettings()
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{
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#if !UNITY_EDITOR && UNITY_ANDROID
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AJC.CallStatic( "OpenSettings", Context );
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#elif !UNITY_EDITOR && UNITY_IOS
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_NativeGallery_OpenSettings();
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#endif
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}
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#endregion
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#region Save Functions
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public static Permission SaveImageToGallery( byte[] mediaBytes, string album, string filenameFormatted, MediaSaveCallback callback = null )
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{
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return SaveToGallery( mediaBytes, album, filenameFormatted, true, callback );
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}
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public static Permission SaveImageToGallery( string existingMediaPath, string album, string filenameFormatted, MediaSaveCallback callback = null )
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{
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return SaveToGallery( existingMediaPath, album, filenameFormatted, true, callback );
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}
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public static Permission SaveImageToGallery( Texture2D image, string album, string filenameFormatted, MediaSaveCallback callback = null )
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{
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if( image == null )
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throw new ArgumentException( "Parameter 'image' is null!" );
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if( filenameFormatted.EndsWith( ".jpeg" ) || filenameFormatted.EndsWith( ".jpg" ) )
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return SaveToGallery( image.EncodeToJPG( 100 ), album, filenameFormatted, true, callback );
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else if( filenameFormatted.EndsWith( ".png" ) )
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return SaveToGallery( image.EncodeToPNG(), album, filenameFormatted, true, callback );
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else
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return SaveToGallery( image.EncodeToPNG(), album, filenameFormatted + ".png", true, callback );
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}
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public static Permission SaveVideoToGallery( byte[] mediaBytes, string album, string filenameFormatted, MediaSaveCallback callback = null )
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{
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return SaveToGallery( mediaBytes, album, filenameFormatted, false, callback );
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}
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public static Permission SaveVideoToGallery( string existingMediaPath, string album, string filenameFormatted, MediaSaveCallback callback = null )
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{
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return SaveToGallery( existingMediaPath, album, filenameFormatted, false, callback );
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}
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#endregion
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#region Load Functions
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public static bool CanSelectMultipleFilesFromGallery()
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{
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#if !UNITY_EDITOR && UNITY_ANDROID
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return AJC.CallStatic<bool>( "CanSelectMultipleMedia" );
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#else
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return false;
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#endif
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}
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public static Permission GetImageFromGallery( MediaPickCallback callback, string title = "", string mime = "image/*", int maxSize = -1 )
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{
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return GetMediaFromGallery( callback, true, mime, title, maxSize );
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}
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public static Permission GetVideoFromGallery( MediaPickCallback callback, string title = "", string mime = "video/*" )
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{
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return GetMediaFromGallery( callback, false, mime, title, -1 );
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}
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public static Permission GetImagesFromGallery( MediaPickMultipleCallback callback, string title = "", string mime = "image/*", int maxSize = -1 )
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{
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return GetMultipleMediaFromGallery( callback, true, mime, title, maxSize );
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}
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public static Permission GetVideosFromGallery( MediaPickMultipleCallback callback, string title = "", string mime = "video/*" )
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{
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return GetMultipleMediaFromGallery( callback, false, mime, title, -1 );
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}
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public static bool IsMediaPickerBusy()
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{
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#if !UNITY_EDITOR && UNITY_IOS
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return NGMediaReceiveCallbackiOS.IsBusy;
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#else
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return false;
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#endif
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}
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#endregion
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#region Internal Functions
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private static Permission SaveToGallery( byte[] mediaBytes, string album, string filenameFormatted, bool isImage, MediaSaveCallback callback )
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{
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Permission result = RequestPermission( false );
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if( result == Permission.Granted )
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{
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if( mediaBytes == null || mediaBytes.Length == 0 )
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throw new ArgumentException( "Parameter 'mediaBytes' is null or empty!" );
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if( album == null || album.Length == 0 )
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throw new ArgumentException( "Parameter 'album' is null or empty!" );
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if( filenameFormatted == null || filenameFormatted.Length == 0 )
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throw new ArgumentException( "Parameter 'filenameFormatted' is null or empty!" );
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string path = GetSavePath( album, filenameFormatted );
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File.WriteAllBytes( path, mediaBytes );
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SaveToGalleryInternal( path, album, isImage, callback );
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}
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return result;
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}
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private static Permission SaveToGallery( string existingMediaPath, string album, string filenameFormatted, bool isImage, MediaSaveCallback callback )
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{
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Permission result = RequestPermission( false );
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if( result == Permission.Granted )
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{
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if( !File.Exists( existingMediaPath ) )
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throw new FileNotFoundException( "File not found at " + existingMediaPath );
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if( album == null || album.Length == 0 )
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throw new ArgumentException( "Parameter 'album' is null or empty!" );
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if( filenameFormatted == null || filenameFormatted.Length == 0 )
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throw new ArgumentException( "Parameter 'filenameFormatted' is null or empty!" );
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string path = GetSavePath( album, filenameFormatted );
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File.Copy( existingMediaPath, path, true );
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SaveToGalleryInternal( path, album, isImage, callback );
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}
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return result;
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}
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private static void SaveToGalleryInternal( string path, string album, bool isImage, MediaSaveCallback callback )
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{
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#if !UNITY_EDITOR && UNITY_ANDROID
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AJC.CallStatic( "MediaScanFile", Context, path );
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if( callback != null )
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callback( null );
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Debug.Log( "Saving to gallery: " + path );
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#elif !UNITY_EDITOR && UNITY_IOS
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NGMediaSaveCallbackiOS.Initialize( callback );
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if( isImage )
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_NativeGallery_ImageWriteToAlbum( path, album );
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else
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_NativeGallery_VideoWriteToAlbum( path, album );
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Debug.Log( "Saving to Pictures: " + Path.GetFileName( path ) );
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#else
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if( callback != null )
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callback( null );
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#endif
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}
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private static string GetSavePath( string album, string filenameFormatted )
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{
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string saveDir;
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#if !UNITY_EDITOR && UNITY_ANDROID
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saveDir = AJC.CallStatic<string>( "GetMediaPath", album );
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#else
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saveDir = Application.persistentDataPath;
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#endif
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if( filenameFormatted.Contains( "{0}" ) )
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{
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int fileIndex = 0;
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string path;
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do
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{
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path = Path.Combine( saveDir, string.Format( filenameFormatted, ++fileIndex ) );
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} while( File.Exists( path ) );
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return path;
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}
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saveDir = Path.Combine( saveDir, filenameFormatted );
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#if !UNITY_EDITOR && UNITY_IOS
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// iOS internally copies images/videos to Photos directory of the system,
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// but the process is async. The redundant file is deleted by objective-c code
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// automatically after the media is saved but while it is being saved, the file
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// should NOT be overwritten. Therefore, always ensure a unique filename on iOS
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if( File.Exists( saveDir ) )
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{
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return GetSavePath( album,
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Path.GetFileNameWithoutExtension( filenameFormatted ) + " {0}" + Path.GetExtension( filenameFormatted ) );
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}
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#endif
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return saveDir;
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}
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private static Permission GetMediaFromGallery( MediaPickCallback callback, bool imageMode, string mime, string title, int maxSize )
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{
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Permission result = RequestPermission( true );
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if( result == Permission.Granted && !IsMediaPickerBusy() )
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{
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#if !UNITY_EDITOR && UNITY_ANDROID
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object threadLock = new object();
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lock( threadLock )
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{
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NGMediaReceiveCallbackAndroid nativeCallback = new NGMediaReceiveCallbackAndroid( threadLock );
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AJC.CallStatic( "PickMedia", Context, nativeCallback, imageMode, false, mime, title );
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if( string.IsNullOrEmpty( nativeCallback.Path ) )
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System.Threading.Monitor.Wait( threadLock );
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string path = nativeCallback.Path;
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if( string.IsNullOrEmpty( path ) )
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path = null;
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if( callback != null )
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callback( path );
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}
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#elif !UNITY_EDITOR && UNITY_IOS
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NGMediaReceiveCallbackiOS.Initialize( callback );
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if( imageMode )
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{
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if( maxSize <= 0 )
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maxSize = SystemInfo.maxTextureSize;
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_NativeGallery_PickImage( IOSSelectedImagePath, maxSize );
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}
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else
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_NativeGallery_PickVideo();
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#else
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if( callback != null )
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callback( null );
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#endif
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}
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return result;
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}
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private static Permission GetMultipleMediaFromGallery( MediaPickMultipleCallback callback, bool imageMode, string mime, string title, int maxSize )
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{
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Permission result = RequestPermission( true );
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if( result == Permission.Granted && !IsMediaPickerBusy() )
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{
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if( CanSelectMultipleFilesFromGallery() )
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{
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#if !UNITY_EDITOR && UNITY_ANDROID
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object threadLock = new object();
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lock( threadLock )
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{
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NGMediaReceiveCallbackAndroid nativeCallback = new NGMediaReceiveCallbackAndroid( threadLock );
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AJC.CallStatic( "PickMedia", Context, nativeCallback, imageMode, true, mime, title );
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if( nativeCallback.Paths == null )
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System.Threading.Monitor.Wait( threadLock );
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string[] paths = nativeCallback.Paths;
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if( paths != null && paths.Length == 0 )
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paths = null;
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if( callback != null )
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callback( paths );
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}
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#else
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if( callback != null )
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callback( null );
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#endif
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}
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else if( callback != null )
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callback( null );
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}
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return result;
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}
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#endregion
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|
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#region Utility Functions
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|
public static Texture2D LoadImageAtPath( string imagePath, int maxSize = -1, bool markTextureNonReadable = true,
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bool generateMipmaps = true, bool linearColorSpace = false )
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{
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if( string.IsNullOrEmpty( imagePath ) )
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throw new ArgumentException( "Parameter 'imagePath' is null or empty!" );
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|
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if( !File.Exists( imagePath ) )
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throw new FileNotFoundException( "File not found at " + imagePath );
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|
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if( maxSize <= 0 )
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maxSize = SystemInfo.maxTextureSize;
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#if !UNITY_EDITOR && UNITY_ANDROID
|
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string loadPath = AJC.CallStatic<string>( "LoadImageAtPath", Context, imagePath, TemporaryImagePath, maxSize );
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#elif !UNITY_EDITOR && UNITY_IOS
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string loadPath = _NativeGallery_LoadImageAtPath( imagePath, TemporaryImagePath, maxSize );
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#else
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string loadPath = imagePath;
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#endif
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|
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String extension = Path.GetExtension( imagePath ).ToLowerInvariant();
|
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TextureFormat format = ( extension == ".jpg" || extension == ".jpeg" ) ? TextureFormat.RGB24 : TextureFormat.RGBA32;
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|
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Texture2D result = new Texture2D( 2, 2, format, generateMipmaps, linearColorSpace );
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|
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try
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{
|
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if( !result.LoadImage( File.ReadAllBytes( loadPath ), markTextureNonReadable ) )
|
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{
|
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Object.DestroyImmediate( result );
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return null;
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}
|
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}
|
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catch( Exception e )
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{
|
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Debug.LogException( e );
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|
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Object.DestroyImmediate( result );
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return null;
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}
|
|
finally
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|
{
|
|
if( loadPath != imagePath )
|
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{
|
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try
|
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{
|
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File.Delete( loadPath );
|
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}
|
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catch { }
|
|
}
|
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}
|
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|
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return result;
|
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}
|
|
|
|
public static ImageProperties GetImageProperties( string imagePath )
|
|
{
|
|
if( !File.Exists( imagePath ) )
|
|
throw new FileNotFoundException( "File not found at " + imagePath );
|
|
|
|
#if !UNITY_EDITOR && UNITY_ANDROID
|
|
string value = AJC.CallStatic<string>( "GetImageProperties", Context, imagePath );
|
|
#elif !UNITY_EDITOR && UNITY_IOS
|
|
string value = _NativeGallery_GetImageProperties( imagePath );
|
|
#else
|
|
string value = null;
|
|
#endif
|
|
|
|
int width = 0, height = 0;
|
|
string mimeType = null;
|
|
ImageOrientation orientation = ImageOrientation.Unknown;
|
|
if( !string.IsNullOrEmpty( value ) )
|
|
{
|
|
string[] properties = value.Split( '>' );
|
|
if( properties != null && properties.Length >= 4 )
|
|
{
|
|
if( !int.TryParse( properties[0].Trim(), out width ) )
|
|
width = 0;
|
|
if( !int.TryParse( properties[1].Trim(), out height ) )
|
|
height = 0;
|
|
|
|
mimeType = properties[2].Trim();
|
|
if( mimeType.Length == 0 )
|
|
{
|
|
String extension = Path.GetExtension( imagePath ).ToLowerInvariant();
|
|
if( extension == ".png" )
|
|
mimeType = "image/png";
|
|
else if( extension == ".jpg" || extension == ".jpeg" )
|
|
mimeType = "image/jpeg";
|
|
else if( extension == ".gif" )
|
|
mimeType = "image/gif";
|
|
else if( extension == ".bmp" )
|
|
mimeType = "image/bmp";
|
|
else
|
|
mimeType = null;
|
|
}
|
|
|
|
int orientationInt;
|
|
if( int.TryParse( properties[3].Trim(), out orientationInt ) )
|
|
orientation = (ImageOrientation) orientationInt;
|
|
|
|
#if !UNITY_EDITOR && UNITY_IOS
|
|
if( orientation == ImageOrientation.Unknown ) // selected media is saved in correct orientation on iOS
|
|
orientation = ImageOrientation.Normal;
|
|
#endif
|
|
}
|
|
}
|
|
|
|
return new ImageProperties( width, height, mimeType, orientation );
|
|
}
|
|
|
|
public static VideoProperties GetVideoProperties( string videoPath )
|
|
{
|
|
if( !File.Exists( videoPath ) )
|
|
throw new FileNotFoundException( "File not found at " + videoPath );
|
|
|
|
#if !UNITY_EDITOR && UNITY_ANDROID
|
|
string value = AJC.CallStatic<string>( "GetVideoProperties", Context, videoPath );
|
|
#elif !UNITY_EDITOR && UNITY_IOS
|
|
string value = _NativeGallery_GetVideoProperties( videoPath );
|
|
#else
|
|
string value = null;
|
|
#endif
|
|
|
|
int width = 0, height = 0;
|
|
long duration = 0L;
|
|
float rotation = 0f;
|
|
if( !string.IsNullOrEmpty( value ) )
|
|
{
|
|
string[] properties = value.Split( '>' );
|
|
if( properties != null && properties.Length >= 4 )
|
|
{
|
|
if( !int.TryParse( properties[0].Trim(), out width ) )
|
|
width = 0;
|
|
if( !int.TryParse( properties[1].Trim(), out height ) )
|
|
height = 0;
|
|
if( !long.TryParse( properties[2].Trim(), out duration ) )
|
|
duration = 0L;
|
|
if( !float.TryParse( properties[3].Trim(), out rotation ) )
|
|
rotation = 0f;
|
|
}
|
|
}
|
|
|
|
if( rotation == -90f )
|
|
rotation = 270f;
|
|
|
|
return new VideoProperties( width, height, duration, rotation );
|
|
}
|
|
#endregion
|
|
} |