java - 它始终处于 'else' 状态。 (时间选择器)

Question

大家早上好

1) 我正在尝试比较两个时间选择器，但效果不佳。它总是给出相同的选项 - else

int firstHouer =fromTimePicker.getCurrentHour();
int firstdMinute =fromTimePicker.getCurrentMinute();
int seccoundHouer = fromTimePicker.getCurrentHour();
int seccoundMinute =fromTimePicker.getCurrentMinute();

       if (firstHouer + firstdMinute < seccoundHouer + seccoundMinute) 
       {
              Toast toast = Toast.makeText(getApplicationContext(), "B" , Toast.LENGTH_LONG);
              toast.show();
       }
       else
       {
              Toast toast = Toast.makeText(getApplicationContext(), "A" , Toast.LENGTH_LONG);
              toast.show();
       }

2) 当我放置“:”符号时，我遇到了另一个问题，文本改变了它的方向

pic of the problem

Answer 1

如果要比较相对的 24 小时时间，您应该将小时和分钟部分转换为相同单位，然后进行比较。例如，要使用分钟比较两者:

int firstHouer = fromTimePicker.getHour();     // getCurrentHour() is deprecated
int firstdMinute = fromTimePicker.getMinute(); // getCurrentMinute() is deprecated
int seccoundHouer = toTimePicker.getHour();    // or whatever it is called
int seccoundMinute = toTimePicker.getMinute(); // or whatever it is called

if (60*firstHouer + firstdMinute < 60*seccoundHouer + seccoundMinute) {
    Toast toast = Toast.makeText(getApplicationContext(), "B" , Toast.LENGTH_LONG);
    toast.show();
}
else {
    Toast toast = Toast.makeText(getApplicationContext(), "A" , Toast.LENGTH_LONG);
    toast.show();
}

编辑:正如@Dennis 刚刚指出的那样，您的代码中也有拼写错误，并且您对两组时间都使用了相同的 TimePicker，这可能不是您想要的。