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dalewking/CamCompatListView

Created June 6, 2014 16:11
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  1. dalewking created this gist Jun 6, 2014.
    49 changes: 49 additions & 0 deletions CamCompatListView
    View file
    Original file line number Diff line number Diff line change
    @@ -0,0 +1,49 @@
    import android.content.Context;
    import android.support.v7.view.ActionMode;
    import android.util.AttributeSet;
    import android.view.View;
    import android.widget.AbsListView;
    import android.widget.ListView;

    public class CamCompatListView extends ListView
    {
    public CamCompatListView(Context context)
    {
    super(context);
    }

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

    public CamCompatListView(Context context, AttributeSet attrs, int defStyle)
    {
    super(context, attrs, defStyle);
    }

    private ActionMode actionMode;

    public void setActionMode(ActionMode mode)
    {
    actionMode = mode;
    }

    @Override
    public boolean performItemClick(View view, int position, long id)
    {
    if (actionMode == null)
    {
    setChoiceMode(AbsListView.CHOICE_MODE_NONE);
    }

    boolean returnValue = super.performItemClick(view, position, id);

    if (actionMode != null)
    {
    actionMode.invalidate();
    }

    return returnValue;
    }
    }
    143 changes: 143 additions & 0 deletions MyActivity
    View file
    Original file line number Diff line number Diff line change
    @@ -0,0 +1,143 @@
    import android.annotation.SuppressLint;
    import android.support.v7.app.ActionBarActivity;
    import android.support.v7.view.ActionMode;
    import android.util.SparseBooleanArray;
    import android.view.HapticFeedbackConstants;
    import android.view.Menu;
    import android.view.MenuItem;
    import android.view.View;
    import android.widget.AbsListView;
    import android.widget.AdapterView;
    import android.widget.ListView;

    public class MyActivity extends ActionBarActivity
    implements ActionMode.Callback, AdapterView.OnItemLongClickListener,
    AdapterView.OnItemClickListener
    {
    ActionMode actionMode = null;

    CamCompatListView listView;

    @SuppressLint("NewApi")
    public void initialize(CamCompatListView listView)
    {
    listView.setChoiceMode(AbsListView.CHOICE_MODE_NONE);
    listView.setOnItemLongClickListener(this);
    listView.setOnItemClickListener(this);
    }

    @Override
    public void onItemClick(AdapterView<?> parent, View view, int position, long id)
    {
    if (actionMode == null)
    {
    // Code you want on a normal click of an item
    }
    }

    @Override
    public boolean onActionItemClicked(ActionMode mode, MenuItem item)
    {
    int itemId = item.getItemId();

    if (itemId == R.id.myAction)
    {
    SparseBooleanArray checked = listView.getCheckedItemPositions();

    if (checked != null)
    {
    for (int i = 0 ; i < checked.size(); i++)
    {
    if(checked.valueAt(i))
    {
    // Perform action on the item
    }
    }
    }

    mode.finish();

    return true;
    }

    return false;
    }

    @SuppressLint("NewApi")
    @Override
    public boolean onItemLongClick(AdapterView<?> parent, View view, int position, long id)
    {
    if (actionMode == null)
    {
    // This needs to be done early, because it will clear selections on the list
    startSupportActionMode(this);
    }

    listView.setChoiceMode(ListView.CHOICE_MODE_MULTIPLE);
    listView.setItemChecked(position, !listView.isItemChecked(position));
    listView.performHapticFeedback(HapticFeedbackConstants.LONG_PRESS);

    actionMode.invalidate();

    return true;
    }

    @Override
    public boolean onCreateActionMode(ActionMode mode, Menu menu)
    {
    mode.getMenuInflater().inflate(R.menu.my_context_menu, menu);

    actionMode = mode;
    listView.setActionMode(mode);

    return true;
    }

    @SuppressLint("NewApi")
    @Override
    public void onDestroyActionMode(ActionMode mode)
    {
    SparseBooleanArray checked = listView.getCheckedItemPositions();

    if (checked != null)
    {
    for(int i = checked.indexOfValue(true); i >= 0; i = checked.indexOfValue(true))
    {
    listView.setItemChecked(checked.keyAt(i), false);
    }
    }

    listView.setActionMode(null);
    actionMode = null;
    }

    @Override
    public boolean onPrepareActionMode(ActionMode mode, Menu menu)
    {
    SparseBooleanArray checked = listView.getCheckedItemPositions();

    int numberChecked = 0;

    if (checked != null)
    {
    for (int i = 0 ; i < checked.size(); i++)
    {
    if(checked.valueAt(i))
    {
    numberChecked++;
    }
    }
    }

    if (numberChecked > 0)
    {
    mode.setTitle(getResources().getQuantityString(R.plurals.itemsSelected, numberChecked, numberChecked));
    }
    else
    {
    mode.finish();
    }

    return true;
    }
    }