UE4 c++ FName,FString,FText相互转换

最新推荐文章于 2024-12-23 17:08:58 发布

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本文详细介绍了在UE4中不同数据类型之间的转换方法，包括FString到FName、FText，以及FText到FString等常见转换。特别强调了在进行转换时可能遇到的数据损失和潜在风险。

From	To	Example
FName	FString	`TestHUDString = TestHUDName.ToString();`
FName	FText	`TestHUDText = FText::FromName(TestHUDName);` FName -> FText is valid in some cases, but be aware that the FNames's content will not benefit from the FText's "auto localization".
FString	FName	`TestHUDName = FName(*TestHUDString);` FString -> FName is dangerous as the conversion is lossy as FName's are case insensitive.
FString	FText	`TestHUDText = FText::FromString(TestHUDString);` FString -> FText is valid in some cases, but be aware that the FString's content will not benefit from the FText's "auto localization".
FText	FString	`TestHUDString = TestHUDText.ToString();` FText -> FString is dangerous as it is a potentially lossy conversion for some languages.
FText	FName	There is no direct conversion from FText to FName. Instead, convert to FString and then to FName. FText -> FString -> FName is dangerous as the conversion is lossy as FName's are case insensitive.

FString 转 FName

FString MyString = "Hello";
FName ConvertedFString = FName(*MyString);

FString 转 TCHAR*

TCHAR MyTchar = *SourceFString;

FString 转 FText

FString Str = TEXT("str");  
FText Text = FText::FromString(Str);

std::string 转 FString

std::string MyString = "Happy"; 
FString HappyString(MyString.c_str());

FString 转 std::string

FString MyString= "Bunny";
std::string MyStdString(TCHAR_TO_UTF8(*MyString));

FText 转 FString

FText NameDesc = FText::FromString(TEXT("abc"));
FString Name = NameDesc->GetText().ToString();

FText 转 FName

没有直接方法，先转换成FString，再转换成FName

FString 转 Integer

FString TheString = "1108.1110";
int32 MyStringtoInt = FCString::Atoi(*TheString);

FString 转 Float

FString TheString = "1108.1110";
float MyStringtoFloat = FCString::Atof(*TheString);

Float/Int 转 FString

FString NewString = FString::FromInt(YourInt);
 
FString VeryCleanString = FString::SanitizeFloat(YourFloat);

FName 转 FString

FName TestHUDName = FName(TEXT("ThisIsMyTestFName"));
TestHUDString = TestHUDName.ToString();

FName 转 FText

TestHUDText = FText::FromName(TestHUDName);