Unity调用获取手机图片和下载图片功能 NativeGallery插件使用

朱雀 2023-07-25 08:54 112阅读 0赞

介绍一个特别使用的插件：NativeGallery

百度云下载地址：链接：https://pan.baidu.com/s/1j7VilQ8dUSNdEwqwrI\_\_OQ   
提取码：uefe   
github下载地址：[https://github.com/yasirkula/UnityNativeGallery][https_github.com_yasirkula_UnityNativeGallery]

### **此插件可帮助您将图像和/或视频保存到 Android  上的设备和iOS 上的图库中。** ###

### **也可以从“图库/照片”中选择图像或视频并获取。** ###

（一）将图像保存在设备上：（第一参数是Texture2D图片信息，第二个参数是目录名称，第三个是图片名称）

NativeGallery.SaveImageToGallery( Texture2D image, string album, string filename, MediaSaveCallback callback = null )

//这里记录一下项目使用案例：（需求服务端发送的是base64接收并下载）

Texture2D pic = new Texture2D(1111, 1111);
    byte[] data = System.Convert.FromBase64String(base64STR);
    pic.LoadImage(data);
    byte[] bytes = pic.EncodeToPNG();
    NativeGallery.SaveImageToGallery(pic, "qp", "loadpic.png")

//截屏保存

Texture2D ss = new Texture2D( Screen.width, Screen.height, TextureFormat.RGB24, false );
    	ss.ReadPixels( new Rect( 0, 0, Screen.width, Screen.height ), 0, 0 );
    	ss.Apply();
     
    	// Save the screenshot to Gallery/Photos
    	Debug.Log( "Permission result: " + NativeGallery.SaveImageToGallery( ss, "GalleryTest", "My img {0}.png" ) );

（二）获取本地图片

NativeGallery.Permission permission = NativeGallery.GetImageFromGallery((path) =>
            {
                Debug.Log("Image path: " + path);
                if (path != null)
                {
                    // Create Texture from selected image
                    Texture2D pic = NativeGallery.LoadImageAtPath(path, 512,false);
                    if (pic == null)
                    {
                        Debug.Log("Couldn't load texture from " + path);
                        return;
                    }
                    Debug.Log("获取图片的Texture2D: " + pic);
    
                    byte[] bytesArr = pic.EncodeToPNG();
                    Debug.Log("获取图片转成png的byte数据: " + bytesArr);
    
                    string strbase64 = Convert.ToBase64String(bytesArr); 
                    Debug.Log("获取图片转成base64数据: " + strbase64 );
                }
            }, "Select a PNG image", "image/png");

以上是本次项目的需求功能实现记录，参照CSDN博主「YOLO\_TO\_GAME」的原创文章，链接https://blog.csdn.net/weixin\_39706943/article/details/81196089

[https_github.com_yasirkula_UnityNativeGallery]: https://github.com/yasirkula/UnityNativeGallery