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    <p>The following worked for me.</p> <p>First, in onCreate:</p> <pre><code>pickStartTime = (TimePicker)findViewById(R.id.StartTime); pickStartTime.setOnTimeChangedListener(mStartTimeChangedListener); </code></pre> <p>Set the OnTimeChangedListener:</p> <pre><code>private TimePicker.OnTimeChangedListener mStartTimeChangedListener = new TimePicker.OnTimeChangedListener() { public void onTimeChanged(TimePicker view, int hourOfDay, int minute) { updateDisplay(view, startDate, hourOfDay, minute); } }; </code></pre> <p>Null OnTimeChangedListener (explained in comments in updateDisplay below):</p> <pre><code>private TimePicker.OnTimeChangedListener mNullTimeChangedListener = new TimePicker.OnTimeChangedListener() { public void onTimeChanged(TimePicker view, int hourOfDay, int minute) { } }; private void updateDisplay(TimePicker timePicker, Date date, int hourOfDay, int minute) { // do calculation of next time int nextMinute = 0; if (minute &gt;= 45 &amp;&amp; minute &lt;= 59) nextMinute = 45; else if(minute &gt;= 30) nextMinute = 30; else if(minute &gt;= 15) nextMinute = 15; else if(minute &gt; 0) nextMinute = 0; else { nextMinute = 45; } // remove ontimechangedlistener to prevent stackoverflow/infinite loop timePicker.setOnTimeChangedListener(mNullTimeChangedListener); // set minute timePicker.setCurrentMinute(nextMinute); // hook up ontimechangedlistener again timePicker.setOnTimeChangedListener(mStartTimeChangedListener); // update the date variable for use elsewhere in code date.setMinutes(nextMinute); } </code></pre>
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