MKFileSaver 1.0.0

<p>save file to default folder in maui</p> <p>在maui上保存文件到默认文件夹的功能</p> <p>Save a text file</p> <p>保存文本文件</p> <code> var res = MKFileSaver.Save((int)SaveFolderType.Video, "Test/Mytext.txt"); using var stream = MKFileSaver.Open(res.PlatformPath, "w"); using var sw = new StreamWriter(stream); sw.Write("测试文字"); </code> <p>In android,it will save in storage/emulate/0/download/Test/Mytext.txt</p> <p>In windows,it will save in c:user//document/Test/MyText.txt</p> <p>if you targets android api29 lower,you need declare android.permission.READ_EXTERNAL_STORAGE and android.permission.WRITE_EXTERNAL_STORAGE</p> <p>如果安卓目标在api29以下，需要声明读写外部存储权限</p> <p>if you grant android.permission.MANAGE_EXTERNAL_STORAGE or under android api29 or windows,you can use fileApi or input directPath</p> <p>如果安卓有管理所有文件权限或者在android api29以下或者windows，可以使用fileapi或者给直接路径</p> <code> using var stream = MKFileSaver.Open(res.FullPath, "w"); using var stream = File.OpenWrite(res.FullPath, "w"); </code> <p>if you app running on android api 29 higher,you can only save a mp4(or other video format) file to saveFolderType.Video or saveFodlerType.Other, otherwise,it will throw an exception.it's same for audio and images</p> <p>在安卓11以上，只能在视频类型里或洽谈类型里存视频文件，否则抛出异常，音频和图像同理</p> <p>change default folder:</p> <p>更改默认文件夹:</p> <code> public class FolderProvider : DefaultFolderProvider { protected override string GetDefaultFolder(DevicePlatform platform, int folderType) { SaveFolderType saveFolderType; try { saveFolderType = (SaveFolderType)folderType; } catch { saveFolderType = SaveFolderType.Other; } if (platform == DevicePlatform.Android) { return saveFolderType switch { SaveFolderType.Video ⇒AndroidVideoDCIMPath, SaveFolderType.Audio ⇒ AndroidAudioMusicPath, SaveFolderType.Image ⇒ AndroidImagePicturesPath, _ ⇒ AndroidOtherDownloadPath, }; } else { return saveFolderType switch { SaveFolderType.Video ⇒ Environment.GetFolderPath(Environment.SpecialFolder.MyVideos), SaveFolderType.Audio ⇒ Environment.GetFolderPath(Environment.SpecialFolder.MyMusic), SaveFolderType.Image ⇒ Environment.GetFolderPath(Environment.SpecialFolder.MyPictures), _ ⇒ Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments), }; } } } </code> <code> MKFileSaver.Default.DefaultFolderProvider = new FolderProvider(); </code> <p>In windows,you need return an absloute path,no restrict</p> <p>In Android api 29 higher,you can only return path define in defaultFolderProvider starts with AndroidImage*** for iamge file type,same as audio,video</p> <p>In android api 29 lower,you can return path relative to storage/emulate/0 ,no restrict</p> <p>windows上，你可以返回任意绝对路径 android api 29以下，可以返回任意相对于storage/emulate/0的路径， android api 29以上，只能返回defaultFolderProvider里定义的路径，如图像只能返回DefaultFolderProvider.AndroidImagexxxx,视频音频同理</p>