private async void Button_Clicked_2(object sender, EventArgs e)
{
if (photoFile3.Count == 0)
{
await DisplayAlert("警告", "请选择要现形的图片！", "确认");
return;
}
List <FileStream> photo3Stream = new List <FileStream>();
try
{
foreach (FileResult file in photoFile3)
{
photo3Stream.Add(new FileStream(file.FullPath, FileMode.Open));
}
}
catch (UnauthorizedAccessException)
{
await DisplayAlert("警告", "权限异常！", "确认");
photo3Stream.Clear();
return;
}
catch (FileNotFoundException)
{
await DisplayAlert("警告", "文件不存在！", "确认");
photo3Stream.Clear();
return;
}
foreach (SInsideFile insFile in insideFile)
{
insFile.File.Dispose();
}
insideFile.Clear();
Image4.Source = null;
ActivityIndicator1.IsRunning = true;
Button1.IsEnabled = false;
Button2.IsEnabled = false;
await Task.Run(() =>
{
foreach (FileStream fs in photo3Stream)
{
MemoryStream tempStream = LsbTank.Decode(fs, out string tempName);
if (tempStream != null)
{
insideFile.Add(new SInsideFile(tempName, tempStream));
tempStream.Dispose();
}
}
});
LabelTips4.Text = "";
if (insideFile.Count == 0)
{
await DisplayAlert("警告", "这些图不是无影坦克！", "确认");
if (MimeUtility.GetMimeMapping(photoFile3[0].FileName) != MimeUtility.GetMimeMapping(".png"))
{
await DisplayAlert("警告", "如果确定这不是一张锤子图，请 *查看原图* 后 保存 再现形！", "确认");
}
LabelFileName.Text = "";
}
else if (insideFile.Count == 1)
{
string extension = insideFile[0].Name.Substring(insideFile[0].Name.LastIndexOf(".") + 1).ToLower();
if (extension == "png" || extension == "jpg" || extension == "jpeg" || extension == "bmp" || extension == "gif")
{
Image4.Source = ImageSource.FromStream(() => new MemoryStream(insideFile[0].File.ToArray()));
}
else
{
Image4.Source = ImageSource.FromResource("WarFactory.Resources.File.png");
}
LabelFileName.Text = insideFile[0].Name;
}
else
{
Image4.Source = ImageSource.FromResource("WarFactory.Resources.Images.png");
LabelFileName.Text = "成功现形" + insideFile.Count.ToString() + "个文件，点击进入查看列表";
}
Button1.IsEnabled = true;
Button2.IsEnabled = true;
ActivityIndicator1.IsRunning = false;
foreach (FileStream ms in photo3Stream)
{
ms.Close();
}
}
private async void Button_Clicked_1(object sender, EventArgs e)
{
if (photoFile1 == null ||
photoFile2 == null ||
photoFile1.Count == 0 ||
photoFile2.Count == 0)
{
await DisplayAlert("警告", "缺少图片！", "确认");
return;
}
foreach (FileResult pf1 in photoFile1)
{
foreach (FileResult pf2 in photoFile2)
{
if (pf1.FullPath == pf2.FullPath)
{
await DisplayAlert("警告", "里图不能与表图重复！", "确认");
return;
}
}
}
foreach (SInsideFile insFile in insideFile)
{
insFile.File.Dispose();
}
insideFile.Clear();
LabelFileName.Text = "";
Image4.Source = null;
ActivityIndicator1.IsRunning = true;
Button1.IsEnabled = false;
Button2.IsEnabled = false;
if (compression >= 6)
{
await DisplayAlert("警告", "支持压缩度大于等于6的无影坦克的网站很少，很有可能只有本APP能够现形，并且十分不稳定，请酌情考虑是否保存！", "确认");
}
string fileName = "Tank_" + DateTime.Now.ToLocalTime().ToString("yyyyMMdd_HHmmss");
int photoIndex = 0;
if ((string.IsNullOrEmpty(info) || string.IsNullOrWhiteSpace(info)) && photoFile2.Count == 1)
{
info = "TK";
}
await Task.Run(() =>
{
foreach (FileResult fr in photoFile2)
{
photoIndex++;
MemoryStream tempStream = LsbTank.Encode(new FileStream(photoFile1[photoIndex % photoFile1.Count].FullPath, FileMode.Open),
new FileStream(fr.FullPath, FileMode.Open),
info + (photoFile2.Count == 1 ? "" : photoIndex.ToString()),
compression);
if (tempStream != null)
{
insideFile.Add(new SInsideFile(fileName + "_" + photoIndex.ToString() + ".png", tempStream));
tempStream.Dispose();
}
}
});
LabelTips4.Text = "";
if (insideFile.Count == 1)
{
Image4.Source = ImageSource.FromStream(() => new MemoryStream(insideFile[0].File.ToArray()));
LabelFileName.Text = "成功生成！发送时记得原图发送并且关闭水印！";
}
else
{
Image4.Source = ImageSource.FromResource("WarFactory.Resources.Images.png");
LabelFileName.Text = "成功生成" + insideFile.Count.ToString() + "个文件，点击进入查看列表";
}
if (DeviceInfo.Platform == DevicePlatform.iOS)
{
await DisplayAlert("警告", "iOS设备似乎即使发送原图也会被压缩，这也就注定了iOS发出去的坦克图全是锤子，因此请谨慎发图！", "确认");
}
Button1.IsEnabled = true;
Button2.IsEnabled = true;
ActivityIndicator1.IsRunning = false;
}
