unity2022截屏保存到安卓相册

最新推荐文章于 2025-06-28 22:32:12 发布

原创最新推荐文章于 2025-06-28 22:32:12 发布 · 1.4k 阅读

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#android #unity #游戏引擎

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本文介绍了一个Unity脚本，用于在游戏中保存截图到指定路径，并实现了截图的压缩处理及刷新相册的功能。该脚本针对Android平台进行了特别优化，允许用户将游戏内的截图保存到手机相册。

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public class SaveImagesToPlartform : MonoBehaviour
{
    
        /// <summary>
        /// 保存图片
        /// </summary>
        /// <param name="texture"></param>
        /// <returns></returns>
        private void SaveImages()
        {
            string path = Application.streamingAssetsPath;
#if UNITY_ANDROID && !UNITY_EDITOR
            path = "/sdcard/DCIM/Camera"; //设置图片保存到设备的目录.
#endif
            if (!Directory.Exists(path))
                Directory.CreateDirectory(path);
            string savePath = path + "/" + "test" + ".png";
            try
            {
                Application.HasUserAuthorization(UserAuthorization.Microphone);
                byte[] data = DeCompress(ScreenCapture.CaptureScreenshotAsTexture()).EncodeToPNG();
                File.WriteAllBytes(savePath, data);
                OnSaveImagesPlartform(savePath);
            }
            catch
            {   
            }
        }
        /// <summary>
        /// 刷新相册（不需要单独创建原生aar或jar）
        /// </summary>
        /// <param name="path"></param>
        private void OnSaveImagesPlartform(string filePath)
        {
#if UNITY_ANDROID && !UNITY_EDITOR
            string[] paths = new string[1];
            paths[0] = filePath; 
            using (AndroidJavaClass PlayerActivity = new AndroidJavaClass("com.unity3d.player.UnityPlayer"))
            {
                AndroidJavaObject playerActivity = PlayerActivity.GetStatic<AndroidJavaObject>("currentActivity");
                using (AndroidJavaObject Conn = new AndroidJavaObject("android.media.MediaScannerConnection", playerActivity, null))
                {
                    Conn.CallStatic("scanFile", playerActivity, paths, null, null);
                }
            }
#endif
        }
        /// <summary>
        /// 压缩图片
        /// </summary>
        /// <param name="source"></param>
        /// <returns></returns>
        public Texture2D DeCompress(Texture2D source)
        {
            RenderTexture renderTex = RenderTexture.GetTemporary(
                        source.width,
                        source.height,
                        0,
                        RenderTextureFormat.Default,
                        RenderTextureReadWrite.Linear);

            Graphics.Blit(source, renderTex);
            RenderTexture previous = RenderTexture.active;
            RenderTexture.active = renderTex;
            Texture2D readableText = new Texture2D(source.width, source.height);
            readableText.ReadPixels(new Rect(0, 0, renderTex.width, renderTex.height), 0, 0);
            readableText.Apply();
            RenderTexture.active = previous;
            RenderTexture.ReleaseTemporary(renderTex);
            return readableText;
        }
}