我正在开发我的第一个iPhone应用程序,希望能够使用设备的货币设置格式化货币。
目前我有这个:
- (IBAction)calculate {
float lp = ([leftPrice.text floatValue]);
float rp = ([rightPrice.text floatValue]);
float lw = ([leftWeight.text floatValue]);
float rw = ([rightWeight.text floatValue]);
float lppkg = lp/lw;
float rppkg = rp/rw;
if (lp > 0 && lw > 0) {
leftPricePerKg.text = [[NSString alloc] initWithFormat:@"$%.2f", lppkg];
}
if (rp > 0 && rw > 0) {
rightPricePerKg.text = [[NSString alloc] initWithFormat:@"$%.2f", rppkg];
}
}
您应该查看NSNumberFormatter-
你可以看看这里:https://developer.apple.com/documentation/foundation/numberformatter
这里:
https://developer.apple.com/library/content/documentation/Cocoa/Conceptual/DataFormatting/Articles/dfNumberFormatting10_4.html#//apple_ref/doc/uid/TP40002368-SW1
特别是在上
"配置货币格式"部分
编辑
我发现
//--------------------------------------------
// Format style as currency, output to console
//--------------------------------------------
[formatter setNumberStyle:NSNumberFormatterCurrencyStyle];
formattedOutput = [formatter stringFromNumber:[attributesDict objectForKey:NSFileSystemFreeSize]];
NSLog(@"Output as currency: %@", formattedOutput);
//--------------------------------------------
// Change local and output as currency
//--------------------------------------------
NSLocale *locale = [[NSLocale alloc] initWithLocaleIdentifier:@"it_IT"];
[formatter setLocale:locale];
formattedOutput = [formatter stringFromNumber:[attributesDict objectForKey:NSFileSystemFreeSize]];
NSLog(@"Output as currency - locale it_IT: %@", formattedOutput);
此处:http://iosdevelopertips.com/cocoa/formatting-numbers-nsnumberformatter-examples.html