java - 从 TextView 文本设置 TimePicker 时间

Question

我用了this post从 TextView 创建 TimePicker。现在，我想显示选择了前一个时间的 TimePicker。

所以我第一次打开 TimePicker 并设置为 08:15。第二次，我想在 TimePicker 上显示预设时间 08:15，而不是当前的小时:分钟。

我想我需要更改这部分代码:

   @Override
            public Dialog onCreateDialog(Bundle savedInstanceState) {

                // Use the current time as the default values for the picker
                final Calendar c = Calendar.getInstance();
                int hour = c.get(Calendar.HOUR_OF_DAY);
                int minute = c.get(Calendar.MINUTE);

                // Create a new instance of TimePickerDialog and return it
                return new TimePickerDialog(getActivity(), this, hour, minute,
                        DateFormat.is24HourFormat(getActivity()));
            }

Answer 1

试试这个代码..

public class displayTime extends AppCompatActivity {
TextView textView;
int hour,min;
@Override
protected void onCreate(@Nullable Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    textView=findViewById(R.id.amTvData);
    Calendar mcurrentTime = Calendar.getInstance();
    hour = mcurrentTime.get(Calendar.HOUR_OF_DAY);
    min = mcurrentTime.get(Calendar.MINUTE);

    textView.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            showTime(hour,min);
         }
    });
}
void showTime(int hours,  int minte){
    TimePickerDialog mTimePicker;
    mTimePicker = new TimePickerDialog(displayTime.this, new TimePickerDialog.OnTimeSetListener() {
        @Override
        public void onTimeSet(TimePicker timePicker, int selectedHour, int selectedMinute) {
            textView.setText( selectedHour + ":" + selectedMinute);
            hour=selectedHour;
            min=selectedMinute;
        }
    }, hours, minte, false);//Yes 24 hour time
    mTimePicker.setTitle("Select Time");
    mTimePicker.show();

}
}