How to display year only in date picker in android

Question

Can anybody tell how to display year only in date picker in android

Thanks

Answer 1

I just have the same problem and all solution I found doesn't works with new Android Versions because I can't get the Field of the Reflection of DatePicker

Anyway I solve by doing a Dialog to pick a number, if you need the code:

SingleNumberPickerDialog.java Code

public class SingleNumberPickerDialog extends DialogFragment {

    public interface IOnNumberSelected {
        void onNumberSelected(int num, int requestCode);
    }

    private static final String TAG = SingleNumberPickerDialog.class.getSimpleName();
    private static final String KEY = TAG + ".key";
    // Arguments Keys
    private static final String KEY_LABEL = KEY + ".label";
    private static final String KEY_START_VALUE = KEY + ".startValue";
    private static final String KEY_MIN_VALUE = KEY + ".minValue";
    private static final String KEY_MAX_VALUE = KEY + ".maxValue";
    private static final String KEY_REQUEST_CODE = KEY + ".requestCode";
    // Int Values
    private static final int INT_UNDEFINED = -0x1;

    @BindView(R2.id.tv_label)
    protected TextView mtvLabel;
    @BindView(R2.id.np_number)
    protected NumberPicker mnpNumber;

    private IOnNumberSelected mCallback;
    private int mRequestCode;

    public static SingleNumberPickerDialog newInstance(String label, int startValue, int minValue, int maxValue, int requestCode){
        SingleNumberPickerDialog mInstance = new SingleNumberPickerDialog();
        Bundle args = new Bundle();
        args.putString(KEY_LABEL, label);
        args.putInt(KEY_START_VALUE, startValue);
        args.putInt(KEY_MIN_VALUE, minValue);
        args.putInt(KEY_MAX_VALUE, maxValue);
        args.putInt(KEY_REQUEST_CODE, requestCode);
        mInstance.setArguments(args);
        return mInstance;
    }

    /** Override Lifecycle Methods **/
    @Override
    public void onAttach(@NonNull Context context) {
        super.onAttach(context);
        try {
            mCallback = (IOnNumberSelected) context;
        } catch (ClassCastException ccE){
            Log.e(TAG, ccE);
        }
    }

    @Nullable
    @Override
    public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
        super.onCreateView(inflater, container, savedInstanceState);
        View view = inflater.inflate(R.layout.dialog_single_number_picker, container, false);
        ButterKnife.bind(this, view);
        initOnCreateView();
        return view;
    }

    /** Actions Methods **/
    @OnClick(R2.id.b_confirm)
    void onClickConfirm(View view){
        if(mCallback != null){
            mCallback.onNumberSelected(mnpNumber.getValue(), mRequestCode);
        }
    }

    /** Private Methods **/
    private void initOnCreateView(){
        if(getArguments() != null){
            initLabel();
            initStartValue();
            initMinValue();
            initMaxValue();
            initRequestCode();
        }
    }

    private void initLabel(){
        if(getArguments().containsKey(KEY_LABEL)){
            mtvLabel.setText(getArguments().getString(KEY_LABEL));
        }
    }

    private void initStartValue(){
        if(getArguments().containsKey(KEY_START_VALUE)){
            mnpNumber.setValue(getArguments().getInt(KEY_START_VALUE));
        }
    }

    private void initMinValue(){
        if(getArguments().containsKey(KEY_MIN_VALUE)){
            mnpNumber.setMinValue(getArguments().getInt(KEY_MIN_VALUE));
        }
    }

    private void initMaxValue(){
        if(getArguments().containsKey(KEY_MAX_VALUE)){
            mnpNumber.setMaxValue(getArguments().getInt(KEY_MAX_VALUE));
        }
    }

    private void initRequestCode(){
        if(getArguments().containsKey(KEY_REQUEST_CODE)){
            mRequestCode = getArguments().getInt(KEY_REQUEST_CODE);
        }
    }

}

dialog_single_number_picker.xml Code:

Usage sample (u need to implement the callback inside ur activity):

int year = DateUtils.getCurrentYear();
            SingleNumberPickerDialog mDialog = SingleNumberPickerDialog.newInstance(getString(R.string.label_year), year, year - 50, year + 50, 0x0);
            mDialog.setStyle(DialogFragment.STYLE_NO_FRAME, R.style.NoBackgroundDialogStyle);
            mDialog.setCancelable(false);
            mDialog.show(getSupportFragmentManager(), TAG_DIALOG_YEAR_PICKER);