Windows Phone 8 APP 移植到Windows Phone 8.1 常見問題總結
前言（一些廢話哈，能夠略過）app
wp8.1的SDK相對8.0的仍是變化很多的，類改變了不少，我就是我遇到的一些問題總結下，你們有用到的能夠少走些彎路，一些東西國內都搜不到async
（作這我的少，資料少，開始移植到wp8.1的也少些），建議小夥伴們google，或者關鍵字用英文搜索比較好，其實我大多都在stackoverflow找到的，ide
看官方文檔也能夠，可是就比較慢了。測試
正文ui
MessageBox被MessageDialog取代了具體用法以下（有些變量名是隨手寫的，沒通過思考。。。你們能夠改下）google
public async static void ShowCustomDialog(string title, string mes, string ok, Action ok_callback, string cancel, Action cancel_callback) { MessageDialog c = new MessageDialog(mes,title); UICommand ok_cmd = new UICommand(ok); ok_cmd.Invoked += (dd) => { if (ok_callback != null) { ok_callback.Invoke(); } }; UICommand canle_cmd = new UICommand(cancel); ok_cmd.Invoked += (dd) => { if (cancel_callback != null) { cancel_callback.Invoke(); }; }; c.Commands.Add(ok_cmd); c.Commands.Add(canle_cmd); IUICommand result = await c.ShowAsync(); }
獲取設備基本信息的類DeviceStatus被EasClientDeviceInformation取代基本用法以下spa
public static string GetDeviceInfo()
{
Windows.Security.ExchangeActiveSyncProvisioning.EasClientDeviceInformation deviceInfo = new Windows.Security.ExchangeActiveSyncProvisioning.EasClientDeviceInformation();
var firmwareVersion = deviceInfo.SystemFirmwareVersion;
string d = "{\"devicename\":\"" + deviceInfo.SystemProductName + "\",\"deviceManufacturer\":\"" + deviceInfo.SystemManufacturer + "\"}";
return d;
}
獲取設備惟一ID的類DeviceExtendedProperties.TryGetValue("DeviceUniqueId", out uniqueId))被HardwareIdentification取代，具體使用以下線程
public static string GetDeviceUniqueID()
{
HardwareToken token = HardwareIdentification.GetPackageSpecificToken(null);
IBuffer hardwareId = token.Id;
HashAlgorithmProvider hasher = HashAlgorithmProvider.OpenAlgorithm("MD5");
IBuffer hashed = hasher.HashData(hardwareId);
string hashedString = CryptographicBuffer.EncodeToHexString(hashed);
return hashedString;
}
在後臺進程中執行UI進程任務時候用到的Deployment.Current.Dispatcher.BeginInvoke 被CoreWindow.GetForCurrentThread().Dispatcher取代，具體用法code
var dispatcher = CoreApplication.MainView.CoreWindow.Dispatcher;
await dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
{ // UI code goes hereorm
});
//or
CoreApplication.MainWindow.CoreWindow.Dispatcher.RunAsync(
CoreDispatcherPriority.Normal,
()=>{
// UI code goes here
});
當前線程睡眠的Thread.Sleep()被 await Task.Delay(1000)取代
IsolatedStorageSettings被ApplicationData.Current.RoamingSettings取代，IsolatedStorageFile被ApplicationData.Current.LocalFolder;取代，具體使用以下
public class IsolatedStorageHelper
{
private static ApplicationDataContainer _appSettings= ApplicationData.Current.RoamingSettings;
public static T LoadSetttingFromStorage<T>(string Key, T defaultValue)
{
T ObjToLoad = default(T);
if (_appSettings.Values.Keys.Contains(Key))
{
ObjToLoad = (T)_appSettings.Values[Key];
}
else
{
ObjToLoad = defaultValue;
}
return ObjToLoad;
}
public static void SaveSettingToStorage(string Key, object Setting)
{
if (!_appSettings.Values.Keys.Contains(Key))
{
_appSettings.Values.Add(Key, Setting);
}
else
{
_appSettings.Values[Key] = Setting;
}
}
public static bool IsSettingPersisted(string Key)
{
return _appSettings.Values.Keys.Contains(Key);
}
public static bool DeleteSettingPersisted(string Key)
{
while (_appSettings.Values.Keys.Contains(Key))
{
_appSettings.Values.Remove(Key);
}
return false;
}
public static async Task<bool> AppendStrToFolder(string str)
{
str = "時間：" + DateTime.Now.ToString() + str;
// 獲取應用程序數據存儲文件夾
StorageFolder applicationFolder = ApplicationData.Current.LocalFolder;
// 在指定的應用程序數據存儲文件夾內建立指定的文件
StorageFile storageFile = await applicationFolder.CreateFileAsync("LuaPostJsonStr.txt", CreationCollisionOption.OpenIfExists);
// 將指定的文本內容寫入到指定的文件
using (Stream stream = await storageFile.OpenStreamForWriteAsync())
{
byte[] content = Encoding.UTF8.GetBytes(str);
await stream.WriteAsync(content, 0, content.Length);
}
return true;
}
public static async Task<bool> WriteFile(string filename,string content)
{
content = "時間:" + DateTime.Now.ToString() + "--------" + content;
IStorageFolder applicationFolder = ApplicationData.Current.LocalFolder;
IStorageFile storageFile = await applicationFolder.CreateFileAsync(filename, CreationCollisionOption.OpenIfExists);
try
{
using (Stream transaction = await storageFile.OpenStreamForWriteAsync())
{
byte[] contents = Encoding.UTF8.GetBytes(content);
//設置如何打開流的位置有內容就設置流的位置到結束位置
if (transaction.CanSeek)
{
transaction.Seek(transaction.Length, SeekOrigin.Begin);
}
await transaction.WriteAsync(contents,0, contents.Length);
return true;
}
}
catch (Exception exce)
{
return false;
// OutputTextBlock.Text = "異常：" + exce.Message;
}
}
public static async Task SavePic(UIElement root, string filename)
{
RenderTargetBitmap renderTargetBitmap = new RenderTargetBitmap();
await renderTargetBitmap.RenderAsync(root);
var pixelBuffer = await renderTargetBitmap.GetPixelsAsync();
string path = "picSdk";
StorageFolder storageFolder = ApplicationData.Current.LocalFolder;
StorageFolder store = await storageFolder.CreateFolderAsync(path, CreationCollisionOption.OpenIfExists);
string ss = Path.Combine(path, filename);
StorageFile file = await store.CreateFileAsync(ss);
using (var fileStream = await file.OpenAsync(FileAccessMode.ReadWrite))
{
var encoder = await BitmapEncoder.CreateAsync(BitmapEncoder.PngEncoderId, fileStream);
encoder.SetPixelData(
BitmapPixelFormat.Bgra8,
BitmapAlphaMode.Ignore,
(uint)renderTargetBitmap.PixelWidth,
(uint)renderTargetBitmap.PixelHeight,
DisplayInformation.GetForCurrentView().LogicalDpi,
DisplayInformation.GetForCurrentView().LogicalDpi,
pixelBuffer.ToArray());
await encoder.FlushAsync();
}
}
public static async Task<bool> SaveFile(StorageFile filee)
{
string path = "picSdk";
StorageFolder storageFolder = ApplicationData.Current.LocalFolder;
StorageFolder store = await storageFolder.CreateFolderAsync(path, CreationCollisionOption.OpenIfExists);
string ss = Path.Combine(path, filee.Name);
StorageFile file = await store.CreateFileAsync(ss);
await filee.MoveAndReplaceAsync(file);
return true;
}
public static async Task< BitmapImage> LoadPic(string folderName,string fileName)
{
BitmapImage source = new BitmapImage();
// Reopen and load the PNG file.
if (await IsExistFolder(folderName))
{
var folder = ApplicationData.Current.LocalFolder;
if (await IsExistFile(fileName,folderName))
{
StorageFile file = await folder.GetFileAsync(fileName);
using (var fileStream = await file.OpenAsync(FileAccessMode.ReadWrite))
{
var encoder = await BitmapDecoder.CreateAsync(BitmapEncoder.PngEncoderId, fileStream);
var stream = await encoder.GetPreviewAsync();
source.SetSource(stream);
source.CreateOptions = BitmapCreateOptions.None;
}
}
return source;
}
else
{
return null;
}
}
public static async Task<bool> IsExistFile(string fileName)
{
StorageFolder storageFolder = ApplicationData.Current.LocalFolder;
try
{
StorageFile file = await storageFolder.GetFileAsync(fileName);
return true;
}
catch (FileNotFoundException e)
{
return false;
}
catch (Exception e)
{
return false;
}
}
public static async Task<bool> IsExistFile(string fileName,string folderName)
{
StorageFolder storageFolder = ApplicationData.Current.LocalFolder;
StorageFolder folder= await storageFolder.GetFolderAsync(folderName);
try
{
StorageFile file = await folder.GetFileAsync(fileName);
return true;
}
catch (FileNotFoundException e)
{
return false;
}
catch (Exception e)
{
return false;
}
}
public static async Task<bool> IsExistFolder(string folderName)
{
StorageFolder storageFolder = ApplicationData.Current.LocalFolder;
try
{
StorageFolder file = await storageFolder.GetFolderAsync(folderName);
return true;
}
catch (FileNotFoundException e)
{
return false;
}
catch (Exception e)
{
return false;
}
}
public static async Task< Stream> LoadPicByStream(string filename)
{
var store = ApplicationData.Current.LocalFolder;
if ( await IsExistFile(filename))
{
StorageFile file= await store.GetFileAsync(filename);
// fileStream.Close();
return (await file.OpenAsync(FileAccessMode.ReadWrite)).AsStream();
}
else
{
return null;
}
}
}
最後這個類，東西比較多哈，有的還沒來得及測試，那個小夥伴遇到問題也請告訴我下。耽誤你們時間了。
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相關文章
- 1. Windows Phone 8.1 控件
- 2. Windows 8/8.1 及 Windows Phone 8 應用神器 - APP Producer
- 3. Windows Phone 8.1 FilePicker API
- 4. Windows Phone 8.1 數據處理
- 5. Dribbble for windows phone 8
- 6. Windows Phone 8.1 後臺任務
- 7. Windows Phone 8 Programming Considerations
- 8. 【Windows Phone 8】樣式
- 9. 【Windows Phone 8】模板
- 10. 【Advanced Windows Phone Programming】在windows phone 8中解碼mp3 和編碼pcm