Question

我想在Android中使用日期选择器和时间选择器在给定的时间和日期安排一条消息，任何帮助都会非常感激。

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    mEditText = (EditText) findViewById(R.id.username);
    msendSms = (EditText) findViewById(R.id.sendssms);
    mEditText.setOnTouchListener(new RightDrawableOnTouchListener(mEditText) {
        @Override
        public boolean onDrawableTouch(MotionEvent event) {
            mEditText.setText("");
            Intent intent = new Intent(Intent.ACTION_PICK, ContactsContract.Contacts.CONTENT_URI);
            startActivityForResult(intent, PICK_CONTACT);
            return true;
        }
    });

    pickdate = (Button) findViewById(R.id.pickdate);
    pickdate.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            datepicker();
        }
    });
    pickTime = (Button) findViewById(R.id.pickTime);
    pickTime.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            Calendar mcurrentTime = Calendar.getInstance();
            int hour = mcurrentTime.get(Calendar.HOUR_OF_DAY);
            int minute = mcurrentTime.get(Calendar.MINUTE);
            mTimePicker = new TimePickerDialog(MainActivity.this, new TimePickerDialog.OnTimeSetListener() {
                @Override
                public void onTimeSet(TimePicker timePicker, int selectedHour, int selectedMinute) {
                    pickTime.setText( selectedHour+ ":" +selectedMinute);
                }
            }, hour, minute,false);
            mTimePicker.setTitle("Select Time");
            mTimePicker.show();
        }
    });


    ScheduleMesage = (Button) findViewById(R.id.scheduleMsg);
    ScheduleMesage.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {

            phoneNo = mEditText.getText().toString().trim();
            message = msendSms.getText().toString().trim();
            SmsManager smsManager=SmsManager.getDefault();
            smsManager.sendTextMessage(phoneNo, null, message, null, null);
            Toast.makeText(getApplicationContext(), "SMS sent.", Toast.LENGTH_LONG).show();

        }
    });
}

@Override
public void onActivityResult(int reqCode, int resultCode, Intent data) {
    super.onActivityResult(reqCode, resultCode, data);

    switch (reqCode) {
        case (PICK_CONTACT):
            if (resultCode == Activity.RESULT_OK) {
                Uri contactData = data.getData();
                Cursor c = managedQuery(contactData, null, null, null, null);
                if (c.moveToFirst()) {
                    String id = c.getString(c.getColumnIndexOrThrow(ContactsContract.Contacts._ID));

                    String hasPhone = c.getString(c.getColumnIndex(ContactsContract.Contacts.HAS_PHONE_NUMBER));

                    if (hasPhone.equalsIgnoreCase("1")) {
                        Cursor phones = getContentResolver().query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI, null,
                                ContactsContract.CommonDataKinds.Phone.CONTACT_ID + " = " + id, null, null);
                        phones.moveToFirst();
                        String cNumber = phones.getString(phones.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER));
                        cNumber = cNumber.replaceAll("[\\D]", "");
                        if (cNumber.length() >= 10) {
                            cNumber = cNumber.substring(cNumber.length() - 10);
                        }

                        Toast.makeText(getApplicationContext(), cNumber, Toast.LENGTH_SHORT).show();

                        String nameContact = c.getString(c.getColumnIndexOrThrow(ContactsContract.Contacts.DISPLAY_NAME));

                        mEditText.setText(nameContact + " " + cNumber);
                    }
                }
            }
    }
}


@TargetApi(Build.VERSION_CODES.N)
private void datepicker() {
    Calendar calendar = Calendar.getInstance();
    final int mYear = calendar.get(Calendar.YEAR);
    final int mMonth = calendar.get(Calendar.MONTH);
    final int mDay = calendar.get(Calendar.DAY_OF_MONTH);

    datePickerDialog = new DatePickerDialog(MainActivity.this,
            new DatePickerDialog.OnDateSetListener() {
                @Override
                public void onDateSet(DatePicker datePicker, int i, int i1, int i2) {
                     time = "" + i + "-" + i2 + "-" + (i1 + 1);
                    pickdate.setText(time);
                }
            }, mYear, mMonth, mDay);

    datePickerDialog.getDatePicker().setMinDate(System.currentTimeMillis() - 1000);
    pickdate.setOnTouchListener(new View.OnTouchListener() {
        @Override
        public boolean onTouch(View v, MotionEvent event) {
            datePickerDialog.show();
            return false;
        }
    });

    pickdate.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            datepicker();
        }

    });
}

我正在使用上面的代码立即发送短信我可以发送短信但是我需要在预定的时间发送短信。

Answer 1

嘿，你可以使用闹钟管理器

即样品在5秒后变成按钮红色

public void SetAlarm()
    {
        final Button button = buttons[2]; // replace with a button from your own UI
        BroadcastReceiver receiver = new BroadcastReceiver() {
            @Override public void onReceive( Context context, Intent _ )
            {
                // you can send sms here
                button.setBackgroundColor( Color.RED );
                context.unregisterReceiver( this ); // this == BroadcastReceiver, not Activity
            }
        };

        this.registerReceiver( receiver, new IntentFilter("com.blah.blah.somemessage") );

        PendingIntent pintent = PendingIntent.getBroadcast( this, 0, new Intent("com.blah.blah.somemessage"), 0 );
        AlarmManager manager = (AlarmManager)(this.getSystemService( Context.ALARM_SERVICE ));

        // set alarm to fire 5 sec (1000*5) from now (SystemClock.elapsedRealtime())
        manager.set( AlarmManager.ELAPSED_REALTIME_WAKEUP, SystemClock.elapsedRealtime() + 1000*5, pintent );
    }

如何在给定的时间和日期安排消息？

1 个答案: