private int hourOfDay, minute;

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

        button = (Button) findViewById(R.id.button);

        Calendar calendar = Calendar.getInstance();

        hourOfDay = calendar.get(Calendar.HOUR);

        minute = calendar.get(Calendar.MINUTE);

        button.setOnClickListener(new View.OnClickListener() {

            @Override

            public void onClick(View v) {

                // TODO Auto-generated method stub

                TimePickerDialog pickerDialog = new TimePickerDialog(MainActivity.this, new OnTimeSetListener() {

                    @Override

                    public void onTimeSet(TimePicker view, int hourOfDay, int minute) {

                        // TODO Auto-generated method stub

                        Toast.makeText(MainActivity.this, hourOfDay + "时" + minute + "分", 1).show();

                        ;

                    }

                }, hourOfDay, minute, true);

                pickerDialog.show();

            }

        });

    }