嘿,任何人,即時通訊在這裏遇到一些麻煩。那麼,即時通訊嘗試將一個字符串的值傳遞給標籤。我設置爲setText:myString函數,但不起作用。但是當我嘗試在viewDidLoad中設置一些隨機文本時,它可以工作。傳遞字符串與函數的問題
我的函數在viewDidLoad中調用。
- (void)viewDidLoad {
//this works
[precoProd setText:@"hahaha"];
//here not
[MyViewClassName print];
[super viewDidLoad];
}
-(void) print{
float x = 500;
float c = x/3;
NSString *valorTotalParcelas;
if(c > 0) {
NSString *pVal = [NSString stringWithFormat:@"%0.2f", c];
NSString *cents = [pVal substringFromIndex:2];
NSString *reais = [pVal substringWithRange:NSMakeRange(0, 1)];
valorTotalParcelas = [[NSString alloc] initWithFormat:@"%@,%@",reais, cents];
}
// ---------------------
if(c > 9.99) {
NSString *pVal = [NSString stringWithFormat:@"%0.2f", c];
NSString *cents = [pVal substringFromIndex:3];
NSString *reais = [pVal substringWithRange:NSMakeRange(0, 2)];
valorTotalParcelas = [[NSString alloc] initWithFormat:@"%@,%@",reais, cents];
}
// ---------------------
if(c > 99.99) {
NSString *pVal = [NSString stringWithFormat:@"%0.2f", c];
NSString *cents = [pVal substringFromIndex:4];
NSString *reais = [pVal substringWithRange:NSMakeRange(0, 3)];
valorTotalParcelas= [[NSString alloc] initWithFormat:@"%@,%@",reais, cents];
}
// ---------------------
if(c > 999.99) {
NSString *pVal = [NSString stringWithFormat:@"%0.2f", c];
NSString *cents = [pVal substringFromIndex:5];
NSString *reais = [pVal substringWithRange:NSMakeRange(0, 4)];
valorTotalParcelas = [[NSString alloc] initWithFormat:@"%@,%@",reais, cents];
}
NSLog(@"FINAL VALUE ---> %@", valorTotalParcelas);
[precoProd setText:valorTotalParcelas];
}
什麼即時做錯了?謝謝!
有一件事是肯定的,有一個內存泄漏 - `valorTotalParcelas`永遠不會發送`release`消息。 – 2011-01-11 17:41:10