How To Set The Text At Particular Id In Dynamic Generated Button

I have the following code. In this i have dynamically generated buttons.when click the button it shows the timepicker. My problem is to set the time for clicked button but it set t

Solution 1:

Try like to update the text of particular Button

Button b=(Button)list.getChildAt(btn_cnt);
b.settext(time);

As you are storing the Button Id in btn_cnt, so can get the view with getChildAt(position)

Where list is your Layout where you adding the Button dynamically.

publicvoidaddButton(intvalue) {
    list.removeAllViews();

    for (i=0 ; i < value; i++) {
        button = new Button(this);
        button.setText("Add Time");
        button.setId(i);

        button.setOnClickListener(new OnClickListener() {

            publicvoidonClick(View v) {
                Calendar mCalendar = Calendar.getInstance();
                new TimePickerDialog(MedInfo.this, onTimeListener, mCalendar
                        .get(Calendar.HOUR_OF_DAY), mCalendar.get(Calendar.MINUTE), false)
                        .show();
                btn_cnt = v.getId();
                Toast.makeText(getApplicationContext(), ""+btn_cnt, Toast.LENGTH_SHORT).show();
            }
        });
        list.addView(button);
    }
}


TimePickerDialog.OnTimeSetListener onTimeListener = new OnTimeSetListener() {

    publicvoidonTimeSet(TimePicker view, int hourOfDay, int minute) {
        String AM_PM;
        Calendar mCalendar = Calendar.getInstance();
        if (hourOfDay < 12) {
            AM_PM = "AM";

        } else {
            AM_PM = "PM";

        }

        long start_time = DateTimeUtils.getTimeInMillis(hourOfDay, minute, 0);
        Calendar calendar = Calendar.getInstance();

        long mseconds = DateTimeUtils.getFirstMillis(calendar.get(Calendar.DATE),
                calendar.get(Calendar.MONTH), calendar.get(Calendar.YEAR));
        time = start_time + mseconds;

        Button b=(Button)list.getChildAt(btn_cnt);
        b.settext(time);

        mCalendar.set(Calendar.HOUR, hourOfDay);
        mCalendar.set(Calendar.MINUTE, minute);

    }
};

Edit:- You can use List instead of Array for retrieving all the time from Button.

List<String> listOfDate=new ArrayList<String>();
        for(int i=0;i<list.getChildCount();i++)
        {
            Button b=(Button)list.getChildAt(i);
            listOfDate.add(b.getText().toString());

        }

Hope this will help you.

Solution 2:

One possible solution is to implement a custom OnTimeSetListener which can keep reference to the clicked button. Before you show the time picker, inform the custom listener which button was clicked. See code below:

publicvoidaddButton(intvalue) {
    list.removeAllViews();

    for (i=0 ; i < value; i++) {
        button = new Button(this);
        button.setText("Add Time");
        button.setId(i);

        button.setOnClickListener(new OnClickListener() {

            publicvoidonClick(View v) {
                Calendar mCalendar = Calendar.getInstance();
                // set the button which was clicked
                onTimeListener.setClickedButton((Button)v);
                new TimePickerDialog(this, onTimeListener, mCalendar
                        .get(Calendar.HOUR_OF_DAY), mCalendar.get(Calendar.MINUTE), false)
                        .show();
                btn_cnt = v.getId();
                Toast.makeText(getApplicationContext(), ""+btn_cnt, Toast.LENGTH_SHORT).show();
            }
        });
        list.addView(button);
    }
}

TimePickerDialog.OnTimeSetListener onTimeListener = new MyOnTimeSetListenter();

classMyOnTimeSetListenterimplementsTimePickerDialog.OnTimeSetListener {

    private Button button;

    publicvoidsetClickedButton(Button button) {
        this.button = button;
    }

    @Override
    publicvoidonTimeSet(TimePicker timePicker, int i, int i2) {
        String AM_PM;
        Calendar mCalendar = Calendar.getInstance();
        if (hourOfDay < 12) {
            AM_PM = "AM";

        } else {
            AM_PM = "PM";

        }

        long start_time = DateTimeUtils.getTimeInMillis(hourOfDay, minute, 0);
        Calendar calendar = Calendar.getInstance();

        long mseconds = DateTimeUtils.getFirstMillis(calendar.get(Calendar.DATE),
                calendar.get(Calendar.MONTH), calendar.get(Calendar.YEAR));
        time = start_time + mseconds;

        this.button.settext(time);
        mCalendar.set(Calendar.HOUR, hourOfDay);
        mCalendar.set(Calendar.MINUTE, minute);
    }
}

Solution 3:

Simply create a global variable and set its value onTimeListener and whenever required setText(global_variable)