计算总金额

Question

我正在尝试获取总量并将其显示为 Toast，但出现如下错误...我已使用 Long.parseLong() 将 String 转换为 Long 但仍然没有运气。

Error:(247, 18) error: no suitable method found for makeText(Context,long,int)
method Toast.makeText(Context,CharSequence,int) is not applicable
(argument mismatch; long cannot be converted to CharSequence)
method Toast.makeText(Context,int,int) is not applicable
(argument mismatch; possible lossy conversion from long to int)

代码

 @Override
        public void onActivityResult(int requestCode, int resultCode, Intent data) {
            int button = data.getIntExtra("k1", 0);
            long a=0,long c1=0;
            long as=0,long as1=0,long as2=0;
            long bs=0,bs1=0,bs2=0;
            if (button == 1) {
                switch (requestCode) {
                    case 0:
                        String result = data.getStringExtra("text"); //Assume it holds 35
                        String b = data.getStringExtra("a");
                         as=Long.parseLong(result);
                        c.setText("            " + b + "------" + "RM " + result);
                        break;

                    case 1:
                        String result1 = data.getStringExtra("text");
                        String b1 = data.getStringExtra("a");
                         as1=Long.parseLong(result1);
                        c.setText("            " + b1 + "------" + "RM " + result1);
                        break;


                    case 2:
                        String result2 = data.getStringExtra("text");
                        String b2 = data.getStringExtra("a");
                         as2=Long.parseLong(result2);
                        c.setText("            " + b2 + "------" + "RM " + result2);
                        break;

                }
            }
            else if(button==2)
            {
                switch (requestCode) {
                    case 0:
                        String result = data.getStringExtra("text");
                        String b = data.getStringExtra("a");
                         bs=Long.parseLong(result);
                        d.setText("            " + b + "------" + "RM " + result);
                        break;

                    case 1:
                        String result1 = data.getStringExtra("text");
                        String b1 = data.getStringExtra("a");
                         bs1=Long.parseLong(result1);
                        d.setText("            " + b1 + "------" + "RM " + result1);
                        break;


                    case 2:
                        String result2 = data.getStringExtra("text"); //Assume it holds 40
                        String b2 = data.getStringExtra("a");
                         bs2=Long.parseLong(result2);
                        d.setText("            " + b2 + "------" + "RM " + result2);
                        break;

                }

                long x=as+as1+as2;
                long y=bs+bs1+bs2;
                long amount=x+y;
                Toast.makeText(getActivity().getApplicationContext(), amount, Toast.LENGTH_LONG).show();
            }

它有另一种写法吗，因为我只需要从每个按钮获取 1 个值。之间，我得到的金额不正确。

抱歉，如果这是一个愚蠢的问题....

Answer 1

试试这个：

Toast.makeText(getActivity().getApplicationContext(), String.valueOf(amount), Toast.LENGTH_LONG).show();

计算总金额

Calculate the total amount

java

android

toast

onactivityresult