android - 时间选择器显示时间如 4 :7 instead of 04:07

Question

我有一个时间选择器功能，可以在 EditText 中设置时间。但它显示的格式不合适。例如，下午 4:07 显示为 4:7。每当数字小于 10 时，它会自动删除 0。请帮帮我。 我的代码是

        if (v == btnTimePicker1)
               {

                // Process to get Current Time
                final Calendar c = Calendar.getInstance();
                mHour = c.get(Calendar.HOUR_OF_DAY);
                mMinute = c.get(Calendar.MINUTE);

                // Launch Time Picker Dialog
                TimePickerDialog tpd = new TimePickerDialog(this,
                        new TimePickerDialog.OnTimeSetListener() {

                            @Override
                            public void onTimeSet(TimePicker view, int hourOfDay,
                                    int minute) {
                                // Display Selected time in textbox
                                txtTime1.setText(hourOfDay + ":" + minute);
                            }
                        }, mHour, mMinute, false);
                tpd.show();




            }

Answer 1

只需换行:

txtTime1.setText(hourOfDay + ":" + minute);

到:

txtTime1.setText(String.format("%02d:%02d", hourOfDay, minute));

一切都会好起来的。

如果您想要一个 12 小时制而不是 24 小时制，则将该行替换为以下内容:

int hour = hourOfDay % 12;
if (hour == 0)
    hour = 12;
txtTime1.setText(String.format("%02d:%02d %s", hour, minute, 
                               hourOfDay < 12 ? "am" : "pm"));

或者你可以用 2 行代码完成:

int hour = hourOfDay % 12;    
txtTime1.setText(String.format("%02d:%02d %s", hour == 0 ? 12 : hour,
                               minute, hourOfDay < 12 ? "am" : "pm"));