Question

I am having problems to do show some data in a UITextView.. here´s the problem. I have a pickerview with two components: one with the products and the other one with the amount to be sold.

我也创建了一个NSMutableArray,并储存了每件产品的价格。加上一个子吨来进行计算,而且到目前为止,这一部分实际上在进行罚款,就像我点击纽特文所示结果一样。

问题在于,我要显示所选产品总金额,如我选择的三件产品,而在我点击子时,结果将在文本意见中显示。

I tried to do this way,but it didn´t work: I thought I´d create another NSMutableArray to store the products selections and when the user clicked the button it would give me the result.. but I couldn´t manage to add the products to the nsmutablearray, because I don´t know how to do it..

因此,谁能提供帮助?

感谢!

Answer 1

为了在NSMutable Array上添加物体,你必须使用“目标”方法。

[yourMutableArray addObject:yourObject];

Edit:

宣布你的 mu阵列为rib。

阁下

NSMutableArray *yourMutableArray;

之后,你可以主动提出:

yourMutableArray = [[NSMutableArray alloc] init];

然后,当你处理 but子点击行动时,添加物体(不再提出)。

幸运!

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