Pregunta Android Spinner no funciona en dispositivos Samsung con Android 5.0


Estoy usando un widget Spinner personalizado con el siguiente código. Todo funciona bien en la mayoría de los dispositivos, excepto en los dispositivos de Samsung con Android 5.0. Al hacer clic, el Spinner debería mostrar una lista de valores, pero eso no sucede.

En emuladores y otros dispositivos de marcas con Android 5.0 funciona bien.

¿Alguien ha enfrentado un isse similar o tiene alguna idea de lo que podría estar pasando?

xml

<?xml version="1.0" encoding="utf-8"?>

<Spinner
    android:id="@+id/_combo_spinner"
    android:layout_width="0px"
    android:layout_height="wrap_content"
    android:layout_weight="1"
    android:focusable="false"
    android:background="@null"
    android:clickable="false"
    android:paddingBottom="@dimen/cell_text_section_text_padding_bottom"
    android:paddingLeft="@dimen/cell_text_section_text_padding_left"
    android:paddingRight="@dimen/cell_text_section_text_padding_right"
    android:paddingTop="@dimen/cell_text_section_text_padding_top"
    android:spinnerMode="dropdown" />

<View
    android:layout_width="@dimen/drawable_stroke_width"
    android:layout_height="match_parent"
    android:layout_marginBottom="5dp"
    android:layout_marginTop="3dp"
    android:background="@color/stroke_dark_grey"
    android:paddingBottom="@dimen/cell_text_section_text_padding_bottom"
    android:paddingTop="@dimen/cell_text_section_text_padding_top" />

<ImageView
    style="@style/image__default"
    android:layout_width="20dp"
    android:layout_height="20dp"
    android:layout_gravity="center"
    android:layout_marginLeft="@dimen/cell_text_section_text_padding_left"
    android:layout_marginRight="@dimen/cell_text_section_text_padding_right"
    android:src="@drawable/ic_action_expand" />

Java

public class ComboBoxView extends LinearLayout {

private Spinner mSpinner;
private OnItemSelectedListener mListener;

public ComboBoxView(Context context) {
    super(context);
    initializeLayout(context);
}

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

@TargetApi(Build.VERSION_CODES.HONEYCOMB)
public ComboBoxView(Context context, AttributeSet attrs, int defStyleAttr) {
    super(context, attrs, defStyleAttr);
    initializeLayout(context);
}

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

// Internal methods:

/**
 * Initializes the layout
 *
 * @param context
 */
private void initializeLayout(final Context context) {

    mListener = null;

    // Inflate and retrieve the views:
    this.setOrientation(LinearLayout.VERTICAL);
    LayoutInflater.from(context).inflate(R.layout.view_combo_box, this);
    mSpinner = (Spinner) findViewById(R.id._combo_spinner);

    // Finish initialization:
    final int paddingTop = (int) getResources().getDimension(R.dimen.cell_text_section_text_padding_top);
    final int paddingBottom = (int) getResources().getDimension(R.dimen.cell_text_section_text_padding_bottom);
    final int paddingLeft = (int) getResources().getDimension(R.dimen.cell_text_section_text_padding_left);
    final int paddingRight = (int) getResources().getDimension(R.dimen.cell_text_section_text_padding_right);
    setOnClickListener(onClick);
    setOrientation(LinearLayout.HORIZONTAL);
    setBackgroundResource(R.drawable.button_primary);
    setClickable(true);
    setPadding(paddingLeft, paddingTop, paddingRight, paddingBottom);
}

@Override
public boolean onInterceptTouchEvent(MotionEvent ev) {
    return true;
}

private final OnClickListener onClick = new OnClickListener() {

    @Override
    public void onClick(View v) {
        mSpinner.performClick();
    }
};

@Override
public void clearFocus() {
    super.clearFocus();
    mSpinner.clearFocus();
}

// External methods:

/**
 * Interface definition for a callback to be invoked when
 * an item in this view has been selected (extracted from {@link AdapterView.OnItemSelectedListener}).
 */
public interface OnItemSelectedListener {

    /**
     * <p>Callback method to be invoked when an item in this view has been
     * selected. This callback is invoked only when the newly selected
     * position is different from the previously selected position or if
     * there was no selected item.</p>
     * <p/>
     * Impelmenters can call getItemAtPosition(position) if they need to access the
     * data associated with the selected item.
     *
     * @param parent   The ComboBoxView where the selection happened
     * @param position The position of the view in the adapter
     * @param id       The row id of the item that is selected
     */
    void onItemSelected(ComboBoxView parent, int position, long id);

    /**
     * Callback method to be invoked when the selection disappears from this
     * view. The selection can disappear for instance when touch is activated
     * or when the adapter becomes empty.
     *
     * @param parent The ComboBoxView that now contains no selected item.
     */
    void onNothingSelected(ComboBoxView parent);
}

public void setValuesAsString(final List<String> newValues) {
    setValuesAsString(newValues, 0);
}

public void setValuesAsString(final List<String> newValues, int initialValue) {

    List<CharSequence> result = new ArrayList<CharSequence>(newValues.size());
    for(String value : newValues) {
        result.add(value);
    }
    setValues(result, initialValue);
}

public void setValues(final List<CharSequence> newValues) {
    setValues(newValues, 0);
}

public void setValues(final List<CharSequence> newValues, int initialValue) {

    if((initialValue >= newValues.size()) || (initialValue < -1)) {
        IllegalArgumentException ex = new IllegalArgumentException("Invalid value for initialValue");
        LOG.error(LOG.SOURCE.UI, "Invalid",ex);
        throw ex;
    }

    // Prepare the list of elements:
    // NOTE: The last item in ComboBoxArrayAdapter must be empty. Items should also contain the
    // same number of lines as the "tallest" entry:
    final List<CharSequence> finalValues = new ArrayList<CharSequence>(newValues.size());
    finalValues.addAll(newValues);

    int maxLines = 1;
    for(CharSequence text : newValues) {
        final String[] lines = text.toString().split("\r\n|\r|\n");
        maxLines = Math.max(maxLines, lines.length);
    }
    finalValues.add("");

    // Prepare spinner:
    final ComboBoxArrayAdapter adapter = new ComboBoxArrayAdapter(this.getContext(), R.layout.view_combo_box_item, finalValues);
    adapter.setDropDownViewResource(R.layout.view_combo_box_item_dropdown);
    adapter.setMaxLines(maxLines);
    mSpinner.setOnItemSelectedListener(null);
    mSpinner.setAdapter(adapter);
    mSpinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {

        boolean firstSelection = true;

        @Override
        public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
            if (mListener != null) {
                int index = (position >= (mSpinner.getCount() - 1)) ? -1 : position;
                mListener.onItemSelected(ComboBoxView.this, index, id);
            }
        }

        @Override
        public void onNothingSelected(AdapterView<?> parent) {
            if (mListener != null) {
                mListener.onNothingSelected(ComboBoxView.this);
            }
        }
    });

    if (mListener != null) {
        mListener.onNothingSelected(this);
    }

    // Set initial selection:
    if(initialValue != -1) {
        mSpinner.setSelection(initialValue);
    } else {
        mSpinner.setSelection(newValues.size());
    }
}


public void setOnItemSelectedListener(final OnItemSelectedListener listener) {
    mListener = listener;
}


public int getSelectedItem() {
    int result = mSpinner.getSelectedItemPosition();
    if(result >= mSpinner.getCount()) {
        result = -1;
    }

    return result;
}


Hilandero
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Ejemplo de resultado
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Gracias por adelantado.


6
2018-05-27 12:03


origen


Respuestas:


¡Finalmente arreglé esto!

La propiedad de android clickable fue configurado para false, pero el comportamiento de clic se realizó en el archivo ComboBoxView.java en el siguiente código:

private final OnClickListener onClick = new OnClickListener() {

    @Override
    public void onClick(View v) {
         mSpinner.performClick();
    }
};

Esto funcionaba en todas partes (dispositivos y emuladores), excepto en dispositivos Samsung con Android 5.0. Esto no pude entender por qué.


Después de que cambié la cliclabke propiedad en verdad comenzó a funcionar.

android:clickable="true"


Gracias.


7
2018-06-08 16:20