Xcode 自定义键盘 (DOT)

Question

我正在尝试为 Iphone 制作一个自定义键盘（数字键盘）:) 但我找不到编码点/“。”请帮助我！...

谢谢:)

我有这个：

- (IBAction)dot:(id)sender{
numberr.text = [numberr.text stringByAppendingString:@"."];}

- (IBAction)number1:(id)sender{ 
    numberr.text = [NSString stringWithFormat:@"%.f1", [numberr.text floatValue]];
}
- (IBAction)number2:(id)sender{
        numberr.text = [NSString stringWithFormat:@"%.f2", [numberr.text floatValue]];
}
- (IBAction)number3:(id)sender{
    numberr.text = [NSString stringWithFormat:@"%.f3", [numberr.text floatValue]];
}
- (IBAction)number4:(id)sender{
    numberr.text = [NSString stringWithFormat:@"%.f4", [numberr.text floatValue]];
}
- (IBAction)number5:(id)sender{
    numberr.text = [NSString stringWithFormat:@"%.f5", [numberr.text floatValue]];
}
- (IBAction)number6:(id)sender{
    numberr.text = [NSString stringWithFormat:@"%.f6", [numberr.text floatValue]];
}
- (IBAction)number7:(id)sender{
    numberr.text = [NSString stringWithFormat:@"%.f7", [numberr.text floatValue]];
}
- (IBAction)number8:(id)sender{
    numberr.text = [NSString stringWithFormat:@"%.f8", [numberr.text floatValue]];
}
- (IBAction)number9:(id)sender{
    numberr.text = [NSString stringWithFormat:@"%.f9", [numberr.text floatValue]];
}
- (IBAction)number0:(id)sender{
    numberr.text = [NSString stringWithFormat:@"%.f0", [numberr.text floatValue]];
}

- (IBAction)del:(id)sender{
    numberr.text = @"";
}

Answer 1

将 number.text 的分配更改为创建字符串的方式：

numberr.text = [numberr.text stringByAppendingFormat:@"%.f9", [numberr.text floatValue]];

在除点之外的所有其他情况下，您都覆盖了 numberr.text 。