我在我的项目中使用XLForm并希望以特定格式显示其中一行的值。
该行是“年营业额”,我想将用户输入的值显示为货币 - 例如,如果用户在表单字段中输入1000000,则应更新该字段以显示:$ 1,000,000.00
我怎么做?
这是在 initializeForm() 中初始化表单字段的方式:
-(void)initializeForm
{
// Other fields in the form...
// Annual turnover Section
self.section = [XLFormSectionDescriptor formSectionWithTitle:formLabel8AnnualTurnover];
//section.footerTitle = @"Describe new products";
[self.formDescriptor addFormSection:self.section];
// Annual turnover
self.row = [XLFormRowDescriptor formRowDescriptorWithTag:formField8AnnualTurnover rowType:XLFormRowDescriptorTypeText title:nil];
self.row.required = NO;
rowDescriptor8AnnualTurnover = self.row;
[self.section addFormRow:self.row];
// Other fields in the form...
self.form = self.formDescriptor;
}
根据文档,我应该捕捉到用户已经与该字段进行了交互,然后更改该字段的值并更新该行。
这就是我发现用户在该字段中输入内容的方式:
-(void)formRowDescriptorValueHasChanged:(XLFormRowDescriptor *)rowDescriptor oldValue:(id)oldValue newValue:(id)newValue
{
[super formRowDescriptorValueHasChanged:rowDescriptor oldValue:oldValue newValue:newValue];
// Get the current form values
formValues = [self.form formValues];
int i = 0;
if ([rowDescriptor.tag hasPrefix:formField8AnnualTurnover]){
NSString *annualTurnoverValue = [(XLFormOptionsObject*)formValues[formField8AnnualTurnover] displayText];
rowDescriptor8AnnualTurnover.value = [NSString stringWithFormat:@"R %@", annualTurnoverValue]; //This breaks.
[self reloadFormRow:rowDescriptor8AnnualTurnover];
}
}