java - 我可以覆盖不同类中的方法吗？

Question

我有两个类，我想在其中一个函数中应用一个函数。同时，将该函数应用到另一个类中。从某种意义上说:从 MainActivity 类中调用 ClassTimePickerDialogto 类来显示一个小时。按下时钟内部的按钮后。我正在对 onTimeSet 函数进行覆盖。然后它就在 Mainactivity 类中耗尽了工作。然后它执行函数finsh。

类(class)主要 Activity

public class MainActivity extends AppCompatActivity implements android.app.TimePickerDialog.OnTimeSetListener{

    Button b1;
    DialogFragment timePickerDialog1;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        b1 = (Button) findViewById(R.id.button);
        b1.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                timePickerDialog1 = new TimePickerDialog();
                timePickerDialog1.show(getSupportFragmentManager(), "timePicker");
            }
        });
    }


    @Override
    public void onTimeSet(TimePicker timePicker, int i, int i1) {
        Log.i("Dofunction", "IsDon"+i);
        finish();
    }

    // End ;
}

类 TimePickerDialog

public  class TimePickerDialog extends DialogFragment implements android.app.TimePickerDialog.OnTimeSetListener{

    public String AM_PM = "";
    public int hourOfDay =0;
    public int minute=0;


    Context context;

    public TimePickerDialog(){
    }

    @Override
    public Dialog onCreateDialog(@Nullable 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);
        return new android.app.TimePickerDialog(context,this , hour , minute, DateFormat.is24HourFormat(context));
    }


    @Override
    public void onTimeSet(TimePicker view, int hourOfDay_, int minute_){
          // "11:06 PM"
         if(hourOfDay_>12){
             AM_PM = "PM";
             hourOfDay_= hourOfDay_-12;
           }else{
             AM_PM = "AM";
        }
         hourOfDay=hourOfDay_;
         minute=minute_;
    }


}

Answer 1

您可以重写从父类继承的方法。不是来自其他“随机”java 类的方法。