我試圖使用fileplugin和JSON序列爲此保留程序設置。 我在覈心項目中有以下DcsSetup類。 現在我正在與機器人合作。我似乎無法保存文件。 json序列化是可以的。 WriteFile似乎沒問題,但下次嘗試使用TryReadTextFile讀取文件時,它失敗。 我找不到設備上的文件,所以我認爲WriteFile的東西是錯誤的。 在Android上保存和閱讀我的Settings類的正確方法是什麼?mvvmcross使用文件的插件和JSON序列化/反序列化
公共類DcsSetup {
public class Settings
{
//Server
public string Server;
public int Port;
public int Device;
public string EncodingFromClient;
public string EncodingToClient;
public int FontCorrectionPixelsWidth; //Pixels to add or subtract i Y dimension to get the right font size
public int FontCorrectionPixelsHeight; //Pixels to add or subtract i Y dimension to get the right font size
public float XPct;//Pct to add to vertical placement of textBox and Buttons.
public float YPct;//Pct to add to horisontal placement of textBox and Buttons.
public float SizePct;//Pct to add to horisontal size of textBox and Buttons.
public bool FullScreen;
public bool DontSleep;
//Diverse
public bool AutoSendEnter;
}
public Settings Setting;
public DcsSetup()
{
var setupFound=true;
var fileService = Mvx.Resolve<IMvxFileStore>();
var jsonConvert = Mvx.Resolve<IMvxJsonConverter>();
var path = fileService.PathCombine("Setting", "Settings.txt");
Setting = new Settings();
try {
string settingFile;
if (fileService.TryReadTextFile(path, out settingFile)){
Setting = jsonConvert.DeserializeObject<Settings>(settingFile);
} else{
setupFound = false;
}
}
catch(Exception e) {
AppTrace.Error("Failed to read settings: {0}", e.Message);
setupFound=false;
}
if(setupFound==false){
Setting.Server = "192.168.1.100";
Setting.Port = 1650;
Setting.Device = 1;
Setting.EncodingFromClient = "CP1252";
Setting.EncodingToClient = "CP1252";
Setting.FontCorrectionPixelsWidth = 0;
Setting.FontCorrectionPixelsHeight = 0;
Setting.XPct = 97.0f;
Setting.YPct = 100.0f;
Setting.SizePct = 98.0f;
Setting.FullScreen = false;
Setting.DontSleep = true;
Setting.AutoSendEnter = true;
try {
//json
var json = jsonConvert.SerializeObject(Setting);
fileService.EnsureFolderExists("Setting");
fileService.WriteFile(path, json);
}
catch (Exception e) {
AppTrace.Error("Failed to save settings: {0}", e.Message);
}
}
}
}}
感謝您的快速回答。這是我必須在Visual Studio中設置的Preserve應用程序數據。工具\選項\ Xamarin \ Android設置。 – user2831196