Android TimePicker AM/PM button not invoking onTimeChanged

Question

I\'m having some issues implementing a TimePicker in my application that allows the user to change the time of a database record prior to inserting it.

The problem is th

Answer 1

With API 25 Nougat, code of Velval / Hisham is the only one that works but not in landscape mode. I changed the code and it works fine :) :

public class AMPMTimePicker extends TimePicker {

private static final String TAG = "AMPMTimePicker";
private OnTimeChangedListener onTimeChangedListener;

public AMPMTimePicker(Context context) {
    super(context);
}

public AMPMTimePicker(Context context, AttributeSet attrs) {
    super(context, attrs);
}

public AMPMTimePicker(Context context, AttributeSet attrs, int defStyleAttr) {
    super(context, attrs, defStyleAttr);
}

@TargetApi(Build.VERSION_CODES.LOLLIPOP)
public AMPMTimePicker(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) {
    super(context, attrs, defStyleAttr, defStyleRes);
}

@Override
public boolean onInterceptTouchEvent(MotionEvent ev) {
    // Stop ScrollView from getting involved once you interact with the View
    if (ev.getActionMasked() == MotionEvent.ACTION_DOWN) {
        ViewParent p = getParent();
        if (p != null)
            p.requestDisallowInterceptTouchEvent(true);
    }
    return false;
}

@Override
public void setOnTimeChangedListener(OnTimeChangedListener onTimeChangedListener) {
    super.setOnTimeChangedListener(onTimeChangedListener);
    this.onTimeChangedListener = onTimeChangedListener;
}

@Override
protected void onFinishInflate() {
    super.onFinishInflate();
    init();
}

@SuppressWarnings("deprecation")
private void init() {
    try {
        ViewGroup amPmView;

        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {

            // LinearLayout (LOLLIPOP)
            // GridLayout (M-LANDSCAPE)
            // LinearLayout (M-PORTRAIT)
            ViewGroup v1 = (ViewGroup) getChildAt(0);

            if (Build.VERSION.SDK_INT < Build.VERSION_CODES.M) {

                // FrameLayout (LOLLIPOP-LANDSCAPE)
                // FrameLayout - id:time_header (LOLLIPOP-PORTRAIT)
                ViewGroup v2 = (ViewGroup) v1.getChildAt(0);

                // FrameLayout - id:TimeHeader (LOLLIPOP-LANDSCAPE)
                // LinearLayout (LOLLIPOP-PORTRAIT)
                ViewGroup v3 = (ViewGroup) v2.getChildAt(0);

                if (getResources().getConfiguration().orientation == Configuration.ORIENTATION_LANDSCAPE) {
                    ViewGroup v4 = (ViewGroup) v3.getChildAt(0); // LinearLayout (LOLLIPOP)
                    amPmView = (ViewGroup) v4.getChildAt(3); // LinearLayout - id:ampm_layout (LOLLIPOP)
                } else { // PORTRAIT
                    amPmView = (ViewGroup) v3.getChildAt(3); // LinearLayout - id:ampm_layout (LOLLIPOP)
                }
            } else { // M and after
                if (getResources().getConfiguration().orientation == Configuration.ORIENTATION_LANDSCAPE) {
                    ViewGroup v2 = (ViewGroup) v1.getChildAt(1); // RelativeLayout (M)
                    amPmView = (ViewGroup) v2.getChildAt(1); // LinearLayout - id:ampm_layout (M)
                } else {
                    ViewGroup v2 = (ViewGroup) v1.getChildAt(0); // RelativeLayout - id:time_header (M)
                    amPmView = (ViewGroup) v2.getChildAt(3); // LinearLayout - id:ampm_layout (M)
                }
            }

            View am = amPmView.getChildAt(0); // AppCompatCheckedTextView - id:am_label
            View pm = amPmView.getChildAt(1); // AppCompatCheckedTextView - id:pm_label

            View.OnTouchListener listener = new View.OnTouchListener() {
                @Override
                public boolean onTouch(View v, MotionEvent event) {
                    int hour;
                    int minute;
                    if (Build.VERSION.SDK_INT < Build.VERSION_CODES.M) {
                        hour = getCurrentHour();
                        minute = getCurrentMinute();
                    } else {
                        hour = getHour();
                        minute = getMinute();
                    }
                    hour = (hour >= 12) ? hour - 12 : hour + 12;
                    onTimeChangedListener.onTimeChanged(AMPMTimePicker.this, hour, minute);
                    return false;
                }
            };
            am.setOnTouchListener(listener);
            pm.setOnTouchListener(listener);
        }
    } catch (Exception e) {
        Log.e(TAG, "TimePicker is not defined for this Android version : " + e.getMessage());
    }
}
}