Android Spinner funktioniert nicht auf Samsung-Geräten mit Android 5.0

Question

Ich verwende ein benutzerdefiniertes Spinner-Widget mit dem folgenden Code. Alles funktioniert gut auf den meisten Geräten, außer auf Geräten von Samsung mit Android 5.0. Beim Klicken sollte der Spinner eine Liste von Werten anzeigen, aber das passiert nicht.

Auf Emulatoren und andere Markengeräte mit Android 5.0 funktioniert es gut.

Hat jemand eine ähnliche Isse oder eine Ahnung von dem, was passieren könnte?

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; 
} 

Spinner

Beispiel Ergebnis

Vielen Dank im Voraus.

Answer 1

Ich habe das endlich behoben!

Die Android Eigenschaft clickable wurde false gesetzt, aber das Klickverhalten wurde in der ComboBoxView.java Datei auf dem folgenden Code ausgeführt:

private final OnClickListener onClick = new OnClickListener() { 

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

Dies funktioniert überall (Geräte und Emulatoren), außer auf Samsung-Geräten mit Android 5.0. Das konnte ich nicht herausfinden warum.

Nachdem ich die Eigenschaft cliclabke zu True geändert hat, hat es angefangen zu arbeiten.

android:clickable="true" 

Dank.