custom spinner

programmer/android

custom spinner

ocsoosoo 2013. 7. 18. 10:50

=========================================
custom_spinner_layout.xml

<?xml version="1.0" encoding="UTF-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/custom_spinner_layout_root"    
    android:layout_width="wrap_content"
    android:layout_height="40dp"
    android:layout_margin="5dp"
    android:background="@drawable/custom_spinner_bg"
    android:gravity="left|center_vertical"
    android:orientation="horizontal"
    android:focusable="true"
    >
    <ImageView
        android:id="@+id/custom_spinner_selected_icon"
        android:layout_width="32dp"
        android:layout_height="32dp"
        android:layout_marginLeft="6dp"
        android:clickable="false"
        android:focusable="false"
        android:gravity="center"
        android:scaleType="center"/>
    
    <TextView
        android:id="@+id/custom_spinner_selected_label"
        android:layout_width="90dp"
        android:layout_height="wrap_content"
        android:layout_marginLeft="1dp"
        android:clickable="false"
        android:focusable="false"
        android:gravity="left|center_vertical"
        android:textColor="#fff5f5f5"
        android:textSize="16dp" />
    
    <ImageView
        android:layout_width="18dp"
        android:layout_height="18dp"
        android:layout_gravity="center"
        android:layout_marginTop="10dp"
        android:clickable="false"
        android:focusable="false"
        android:gravity="center"
        android:scaleType="center"
        android:src="@drawable/custom_spinner_arrow_bg" />
</LinearLayout>

=========================================
custom_spinner_item.xml

=========================================
CustomSpinner.java(Using ListPopupWindow)

import android.content.Context;
import android.graphics.drawable.Drawable;
import android.util.AttributeSet;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.ListPopupWindow;
import android.widget.ListView;
import android.widget.TextView;

import java.util.ArrayList;

public class ActionbarSpinner extends LinearLayout implements OnClickListener{
    private final boolean SELECTED_ITEM_EXCLUDE_IN_LIST = false;
    private Context mContext=null;
    private ArrayList<SpinnerItem> mOriginalItems=null;
    private SpinnerActionListener mSpinnerListener=null;
    private int mSelectedId=0;
    private int mPrevSelectedId=0;
    private int mSelectedIndex=0;
    private int mPrevSelectedIndex=0;
    private TextView mSelectedLabel = null;
    private ImageView mSelectedIcon = null;
    private ActionSpinAdapter mAdapter=null;
    private ListPopupWindow mListPopup=null;

public static class SpinnerItem{
        public int id;
        public int iconId;
        public int labelId;
        public SpinnerItem(int _id, int _iconId, int _labelId){
            id = _id;
            iconId = _iconId;
            labelId = _labelId;
        }
        public int getId(){
            return id;
        }
        public int getIconId(){
            return iconId;
        }
        public int getLabelId(){
            return labelId;
        }
    }

private class SpinnerAdapter extends BaseAdapter {
        private ArrayList<SpinnerItem> mAdapterItems=null;
        private LayoutInflater mInflater;
 
 
        public SpinnerAdapter(Context context, ArrayList<SpinnerItem> items) {
            mAdapterItems = items;
            mInflater = LayoutInflater.from(context);
        }
        public void setItems(ArrayList<SpinnerItem> items){
            if(items == null || items.size() < 1){
                return;
            }
            mAdapterItems = items;
            notifyDataSetChanged();
        }
        public View getView(int position, View convertView, ViewGroup parent) {
            int count = getCount();
            if(position < 0 || position >= count){
                return null;
            }
            if (convertView == null) {
                convertView = mInflater.inflate(R.layout.custom_spinner_item, null);
            }
            int iconId = mAdapterItems.get(position).getIconId();
            String label = mContext.getString(mAdapterItems.get(position).getLabelId());
            ((ImageView) convertView.findViewById(R.id.item_icon)).setImageResource(iconId);
            ((TextView) convertView.findViewById(R.id.item_name)).setText(label);
            convertView.setId(mAdapterItems.get(position).getId());
            return convertView;
        }
 
        @Override
        public int getCount() {
            if(mAdapterItems != null){
                return mAdapterItems.size();
            }
            return 0;
        }
 
        @Override
        public Object getItem(int position) {
            int count = getCount();
            if(position < 0 || position >= count){
                return null;
            }
            return mAdapterItems.get(position);
        }
 
        @Override
        public long getItemId(int position) {
            int count = getCount();
            if(position < 0 || position >= count){
                return -1;
            }
            return mAdapterItems.get(position).getId();
        }
        public ArrayList<SpinnerItem> getAdapterItems(){
            return mAdapterItems;
        }
    }

public static interface SpinnerActionListener{
        public void onItemChanged(int prevSelectedIndex, int prevSelectedId, int currentSelectedIndex, int currentSelectedId);
        public void onItemSelected(int selectedIndex, int selectedId);
    }

public ActionbarSpinner(Context context) {
        super(context);
        mContext = context;
        initLayout();
    }
    public ActionbarSpinner(Context context, AttributeSet attrs) {
        super(context, attrs);
        mContext = context;
        initLayout();
    }
    public ActionbarSpinner(Context context, AttributeSet attrs, int defStyle) {
        super(context, attrs);
        mContext = context;
        initLayout();
    }

public ActionbarSpinner(Context context, ArrayList<SpinnerItem> items, int selectIndex, SpinnerActionListener spinnerListener){
        super(context);
        mContext = context;
        if(selectIndex < 0 || selectIndex >= items.size()){
            selectIndex = 0;
        }
        mPrevSelectedId = mSelectedId = -1;
        mPrevSelectedIndex = mSelectedIndex;
        if(mPrevSelectedIndex>=0 && mPrevSelectedIndex<mOriginalItems.size()){
            mPrevSelectedId = mOriginalItems.get(mPrevSelectedIndex).getId();
        }

mOriginalItems = items;
        mSelectedIndex = selectIndex;
        if(mSelectedIndex>=0 && mSelectedIndex<mOriginalItems.size()){
            mSelectedId = mOriginalItems.get(mSelectedIndex).getId();
        }

mSpinnerListener = spinnerListener;
        initLayout();
    }

public void set(ArrayList<SpinnerItem> items, int selectIndex, SpinnerActionListener spinnerListener){
        if(selectIndex < 0 || selectIndex >= items.size()){
            selectIndex = 0;
        }
        mPrevSelectedId = mSelectedId = -1;
        mPrevSelectedIndex = mSelectedIndex;
        if(mPrevSelectedIndex>=0 && mOriginalItems!= null && mPrevSelectedIndex<mOriginalItems.size()){
            mPrevSelectedId = mOriginalItems.get(mPrevSelectedIndex).getId();
        }

mOriginalItems = items;
        mSelectedIndex = selectIndex;
        if(mSelectedIndex>=0 && mOriginalItems!= null && mSelectedIndex<mOriginalItems.size()){
            mSelectedId = mOriginalItems.get(mSelectedIndex).getId();
        }

mSpinnerListener = spinnerListener;
        updateSelectedItem();
        if(mListPopup != null && mListPopup.isShowing()){
            if(mAdapter != null){
                mAdapter.setItems(getListItems());
                updatePopup();
            }
        }
    }

public void setClickable(boolean isClickable) {
        findViewById(R.id.custom_spinner_layout_root).setClickable(isClickable);
    }
    private void initLayout(){
        removeAllViews();
        LayoutInflater inflater = LayoutInflater.from(mContext);
        inflater.inflate(R.layout.custom_spinner_layout, this, true);
        mSelectedIcon = (ImageView)findViewById(R.id.custom_spinner_selected_icon);
        mSelectedLabel = (TextView)findViewById(R.id.custom_spinner_selected_label);
        findViewById(R.id.custom_spinner_layout_root).setOnClickListener(this);
        updateSelectedItem();
    }

private String getLabel(int index){
        if((mOriginalItems == null) || (index < 0) || (index >= mOriginalItems.size())){
            return null;
        }
        return mContext.getString(mOriginalItems.get(index).labelId);
    }

private Drawable getDrawable(int index){
        if((mOriginalItems == null) || (index < 0) || (index >= mOriginalItems.size())){
            return null;
        }
        return mContext.getResources().getDrawable(mOriginalItems.get(index).iconId);
    }
public void setSpinnerActionListener(SpinnerActionListener spinnerListener){
        mSpinnerListener = spinnerListener;
    }
 
    public ArrayList<SpinnerItem> getAllItems(){
        return mOriginalItems;
    }
    public int getItemIndex(int id){
        if((mOriginalItems == null) || (mOriginalItems.size() < 1)){
            return -1;
        }
        for(int i=0; i<mOriginalItems.size(); i++){
            if(mOriginalItems.get(i).id == id){
                return i;
            }
        }
        return -1;
    }
    private void updateSelectedItem(){
        if(mSelectedLabel != null){
            mSelectedLabel.setText(getLabel(mSelectedIndex));
            mSelectedLabel.invalidate();
        }
        if(mSelectedIcon != null){
            mSelectedIcon.setImageDrawable(getDrawable(mSelectedIndex));
            mSelectedIcon.invalidate();
        }
    }
    public void setSelection(int index){
        if((mOriginalItems == null) || (mOriginalItems.size() < 1)){
            return;
        }
        if(index < 0 || index >= mOriginalItems.size()){
            return;
        }
        mPrevSelectedId = mSelectedId = -1;
        mPrevSelectedIndex = mSelectedIndex;
        mSelectedIndex = index;
 
        if(mPrevSelectedIndex>=0 && mPrevSelectedIndex<mOriginalItems.size()){
            mPrevSelectedId = mOriginalItems.get(mPrevSelectedIndex).getId();
        }
 
        if(mSelectedIndex>=0 && mSelectedIndex<mOriginalItems.size()){
            mSelectedId = mOriginalItems.get(mSelectedIndex).getId();
        }
 
        if((mSelectedIndex < 0) || (mSelectedIndex >= mOriginalItems.size())){
            return;
        }
        updateSelectedItem();
 
        if(mSpinnerListener != null){
            if(mSelectedId != mPrevSelectedId){
                mSpinnerListener.onItemChanged(mPrevSelectedIndex, mPrevSelectedId, mSelectedIndex, mSelectedId);
            }else{
                mSpinnerListener.onItemSelected(mSelectedIndex, mSelectedId);
            }
        }
    }
    public int getSelectedIndex(){
        if((mOriginalItems == null) || (mOriginalItems.size() < 1)){
            return -1;
        }
        return mSelectedIndex;
    }
    public int getSelectedId(){
        if((mOriginalItems == null) || (mOriginalItems.size() < 1)){
            return -1;
        }
        if((mSelectedIndex >= mOriginalItems.size()) || (mSelectedIndex < 0)){
            return -1;
        }
        return mOriginalItems.get(mSelectedIndex).id;
    }
    public int getPrevSelectedIndex(){
        if((mOriginalItems == null) || (mOriginalItems.size() < 1)){
            return -1;
        }
        return mPrevSelectedIndex;
    }
    public int getPrevSelectedId(){
        if((mOriginalItems == null) || (mOriginalItems.size() < 1)){
            return -1;
        }
        if((mPrevSelectedIndex >= mOriginalItems.size()) || (mPrevSelectedIndex < 0)){
            return -1;
        }
        return mOriginalItems.get(mPrevSelectedIndex).id;
    }
    private ArrayList<SpinnerItem> getListItems(){
        if((mOriginalItems == null) || (mOriginalItems.size() < 1)){
            return null;
        }
        if(SELECTED_ITEM_EXCLUDE_IN_LIST){
            ArrayList<SpinnerItem> items = new ArrayList<SpinnerItem>();
            for(int i=0; i<mOriginalItems.size(); i++){
                SpinnerItem item = mOriginalItems.get(i);
                if(item.getId() == mSelectedId){
                    continue;
                }
                items.add(item);
            }
            return items;
        }else{
            return mOriginalItems;
        }
    }

@Override
    public void onClick(View v) {
        showListPopup();
    }

private void showListPopup(){
        ArrayList<SpinnerItem> items = getListItems();
        if(items == null){
            return;
        }
        mListPopup = new ListPopupWindow(mContext);
        mListPopup.setAnchorView(findViewById(R.id.custom_spinner_layout_root));
        mAdapter = new ActionSpinAdapter(mContext, items);
        mListPopup.setAdapter(mAdapter);
        mListPopup.setModal(true); //important. If modal is true can item click but false can not click.
        mListPopup.setDropDownAlwaysVisible(false);

if(mAdapter.getCount() > 5){
            View itemView = LayoutInflater.from(mContext).inflate(R.layout.custom_spinner_item, null);
            itemView.measure(MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED)
                    , MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED));
            int itemHeight = itemView.getMeasuredHeight();
            float density = mContext.getResources().getDisplayMetrics().density;
            int dividerHeight = Math.round(1*density);
            ListView lv = new ListView(mContext);
            if(lv != null){
                dividerHeight = lv.getDividerHeight();
            }
            if(dividerHeight < 1){
                Math.round(1*density);
            }
            dividerHeight *= 5;
            mListPopup.setHeight((itemHeight * 5)+dividerHeight);
        }

mListPopup.show();
        ListView lv = mListPopup.getListView();
        if(lv != null){
            lv.setItemsCanFocus(true);
            lv.setChoiceMode(ListView.CHOICE_MODE_SINGLE);
            lv.setOnItemClickListener(new OnItemClickListener(){
                @Override
                public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
                    if(SELECTED_ITEM_EXCLUDE_IN_LIST){
                        int itemId = mAdapter.getAdapterItems().get(position).getId();
                        for(int i=0; i<mOriginalItems.size(); i++){
                            SpinnerItem item = mOriginalItems.get(i);
                            if(item.getId() == itemId){
                                setSelection(i);
                                break;
                            }
                        }
                    }else{
                        setSelection(position);
                    }
                    mListPopup.dismiss();
                    mListPopup = null;
                }
            });
        }
    }

public void updatePopup(){
        if(mListPopup!=null && mAdapter!= null){
            if(mAdapter.getCount() > 5){
                View itemView = LayoutInflater.from(mContext).inflate(R.layout.custom_spinner_item, null);
                itemView.measure(MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED)
                        , MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED));
                int itemHeight = itemView.getMeasuredHeight();
                float density = mContext.getResources().getDisplayMetrics().density;
                int dividerHeight = Math.round(1*density);
                ListView lv = mListPopup.getListView();//new ListView(mContext);
                if(lv != null){
                    dividerHeight = lv.getDividerHeight();
                }
                if(dividerHeight < 1){
                    Math.round(1*density);
                }
                dividerHeight *= 5;
                mListPopup.setHeight((itemHeight * 5)+dividerHeight);
            }
            mAdapter.notifyDataSetChanged();
        }
    }
}

=========================================
CustomSpinner.java(Using AlertDialog)

import android.app.AlertDialog;
import android.app.Dialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.DialogInterface.OnDismissListener;
import android.graphics.drawable.Drawable;
import android.util.AttributeSet;
import android.view.Gravity;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.view.Window;
import android.view.WindowManager;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.TextView;

import java.util.ArrayList;

public class CustomSpinner extends LinearLayout implements OnClickListener{
    private final boolean SELECTED_ITEM_EXCLUDE_IN_LIST = false;
    private Context mContext=null;
    private ArrayList<SpinnerItem> mOriginalItems=null;
    private SpinnerActionListener mSpinnerListener=null;
    private DialogInterface.OnClickListener itemClickListener=null;
    private int mSelectedId=0;
    private int mPrevSelectedId=0;
    private int mSelectedIndex=0;
    private int mPrevSelectedIndex=0;
    private TextView mSelectedLabel = null;
    private ImageView mSelectedIcon = null;
    private Dialog mDialog=null;
    private SpinnerAdapter mAdapter=null;

public SpinnerAdapter(Context context, ArrayList<SpinnerItem> items) {
            mAdapterItems = items;
            mInflater = LayoutInflater.from(context);
        }
        public void setItems(ArrayList<SpinnerItem> items){
            if(items == null || items.size() < 1){
                return;
            }
            mAdapterItems = items;
            notifyDataSetChanged();
        }
        public View getView(int position, View convertView, ViewGroup parent) {
            int count = getCount();
            if(position < 0 || position >= count){
                return null;
            }
            if (convertView == null) {
                convertView = mInflater.inflate(R.layout.custom_spinner_item, null);
            }
            int iconId = mAdapterItems.get(position).getIconId();
            String label = mContext.getString(mAdapterItems.get(position).getLabelId());
            ((ImageView) convertView.findViewById(R.id.item_icon)).setImageResource(iconId);
            ((TextView) convertView.findViewById(R.id.item_name)).setText(label);
            convertView.setId(mAdapterItems.get(position).getId());
            return convertView;
        }

@Override
        public int getCount() {
            if(mAdapterItems != null){
                return mAdapterItems.size();
            }
            return 0;
        }

@Override
        public Object getItem(int position) {
            int count = getCount();
            if(position < 0 || position >= count){
                return null;
            }
            return mAdapterItems.get(position);
        }

@Override
        public long getItemId(int position) {
            int count = getCount();
            if(position < 0 || position >= count){
                return -1;
            }
            return mAdapterItems.get(position).getId();
        }
        public ArrayList<SpinnerItem> getAdapterItems(){
            return mAdapterItems;
        }
    }

public CustomSpinner(Context context) {
        super(context);
        mContext = context;
        initLayout();
    }
    public CustomSpinner(Context context, AttributeSet attrs) {
        super(context, attrs);
        mContext = context;
        initLayout();
    }
    public CustomSpinner(Context context, AttributeSet attrs, int defStyle) {
        super(context, attrs);
        mContext = context;
        initLayout();
    }

public CustomSpinner(Context context, ArrayList<SpinnerItem> items, int selectIndex, SpinnerActionListener spinnerListener){
        super(context);
        mContext = context;
        if(selectIndex < 0 || selectIndex >= items.size()){
            selectIndex = 0;
        }
        mPrevSelectedId = mSelectedId = -1;
        mPrevSelectedIndex = mSelectedIndex;
        if(mPrevSelectedIndex>=0 && mPrevSelectedIndex<mOriginalItems.size()){
            mPrevSelectedId = mOriginalItems.get(mPrevSelectedIndex).getId();
        }

mSpinnerListener = spinnerListener;
        initLayout();
    }

mSpinnerListener = spinnerListener;
        updateSelectedItem();
        if(mDialog != null && mDialog.isShowing()){
            if(mAdapter != null){
                mAdapter.setItems(getListItems());
            }
        }
    }

private void initLayout(){
        removeAllViews();
        LayoutInflater inflater = LayoutInflater.from(mContext);
        inflater.inflate(R.layout.custom_spinner_layout, this, true);
        mSelectedIcon = (ImageView)findViewById(R.id.custom_spinner_selected_icon);
        mSelectedLabel = (TextView)findViewById(R.id.custom_spinner_selected_label);
        initListener();
        findViewById(R.id.custom_spinner_layout_root).setOnClickListener(this);
        updateSelectedItem();
    }

private void initListener(){
        itemClickListener = new DialogInterface.OnClickListener(){
            @Override
            public void onClick(DialogInterface dialog, int which) {
                if(SELECTED_ITEM_EXCLUDE_IN_LIST){
                    int id = mAdapter.getAdapterItems().get(which).getId();
                    for(int i=0; i<mOriginalItems.size(); i++){
                        SpinnerItem item = mOriginalItems.get(i);
                        if(item.getId() == id){
                            setSelection(i);
                            break;
                        }
                    }
                }else{
                    setSelection(which);
                }
                if(dialog != null){
                    dialog.dismiss();
                }
            }
        };
    }
    public void setSpinnerActionListener(SpinnerActionListener spinnerListener){
        mSpinnerListener = spinnerListener;
    }

public ArrayList<SpinnerItem> getAllItems(){
        return mOriginalItems;
    }
    public int getItemIndex(int id){
        if((mOriginalItems == null) || (mOriginalItems.size() < 1)){
            return -1;
        }
        for(int i=0; i<mOriginalItems.size(); i++){
            if(mOriginalItems.get(i).id == id){
                return i;
            }
        }
        return -1;
    }
    private void updateSelectedItem(){
        if(mSelectedLabel != null){
            mSelectedLabel.setText(getLabel(mSelectedIndex));
            mSelectedLabel.invalidate();
        }
        if(mSelectedIcon != null){
            mSelectedIcon.setImageDrawable(getDrawable(mSelectedIndex));
            mSelectedIcon.invalidate();
        }
    }
    public void setSelection(int index){
        if((mOriginalItems == null) || (mOriginalItems.size() < 1)){
            return;
        }
        if(index < 0 || index >= mOriginalItems.size()){
            return;
        }
        mPrevSelectedId = mSelectedId = -1;
        mPrevSelectedIndex = mSelectedIndex;
        mSelectedIndex = index;

if(mPrevSelectedIndex>=0 && mPrevSelectedIndex<mOriginalItems.size()){
            mPrevSelectedId = mOriginalItems.get(mPrevSelectedIndex).getId();
        }

if(mSelectedIndex>=0 && mSelectedIndex<mOriginalItems.size()){
            mSelectedId = mOriginalItems.get(mSelectedIndex).getId();
        }

if((mSelectedIndex < 0) || (mSelectedIndex >= mOriginalItems.size())){
            return;
        }
        updateSelectedItem();

if(mSpinnerListener != null){
            if(mSelectedId != mPrevSelectedId){
                mSpinnerListener.onItemChanged(mPrevSelectedIndex, mPrevSelectedId, mSelectedIndex, mSelectedId);
            }else{
                mSpinnerListener.onItemSelected(mSelectedIndex, mSelectedId);
            }
        }
    }
    public int getSelectedIndex(){
        if((mOriginalItems == null) || (mOriginalItems.size() < 1)){
            return -1;
        }
        return mSelectedIndex;
    }
    public int getSelectedId(){
        if((mOriginalItems == null) || (mOriginalItems.size() < 1)){
            return -1;
        }
        if((mSelectedIndex >= mOriginalItems.size()) || (mSelectedIndex < 0)){
            return -1;
        }
        return mOriginalItems.get(mSelectedIndex).id;
    }
    public int getPrevSelectedIndex(){
        if((mOriginalItems == null) || (mOriginalItems.size() < 1)){
            return -1;
        }
        return mPrevSelectedIndex;
    }
    public int getPrevSelectedId(){
        if((mOriginalItems == null) || (mOriginalItems.size() < 1)){
            return -1;
        }
        if((mPrevSelectedIndex >= mOriginalItems.size()) || (mPrevSelectedIndex < 0)){
            return -1;
        }
        return mOriginalItems.get(mPrevSelectedIndex).id;
    }
    private ArrayList<SpinnerItem> getListItems(){
        if((mOriginalItems == null) || (mOriginalItems.size() < 1)){
            return null;
        }
        if(SELECTED_ITEM_EXCLUDE_IN_LIST){
            ArrayList<SpinnerItem> items = new ArrayList<SpinnerItem>();
            for(int i=0; i<mOriginalItems.size(); i++){
                SpinnerItem item = mOriginalItems.get(i);
                if(item.getId() == mSelectedId){
                    continue;
                }
                items.add(item);
            }
            return items;
        }else{
            return mOriginalItems;
        }
    }
    @Override
    public void onClick(View v) {
        ArrayList<SpinnerItem> items = getListItems();
        if(items == null){
            return;
        }
        mAdapter = new SpinnerAdapter(mContext, items);

AlertDialog.Builder builder;
        float density = mContext.getResources().getDisplayMetrics().density;
        builder = new AlertDialog.Builder(mContext);
        builder.setSingleChoiceItems(mAdapter, mSelectedIndex, itemClickListener);
        mDialog = builder.create();
        mDialog.setCanceledOnTouchOutside(true);
        mDialog.requestWindowFeature(Window.FEATURE_NO_TITLE);
        mDialog.show();
        WindowManager.LayoutParams windowParam = mDialog.getWindow().getAttributes();
        windowParam.gravity = Gravity.TOP | Gravity.LEFT;
        windowParam.x = 10;
        windowParam.y = getBottom();
        windowParam.width = getWidth();
        windowParam.height = mAdapter.getCount() > 5 ? getHeight() * 5 : getHeight()  * mAdapter.getCount();
        windowParam.flags = WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS;
        mDialog.getWindow().setAttributes(windowParam);
        mDialog.setOnDismissListener(new OnDismissListener(){
            @Override
            public void onDismiss(DialogInterface arg0) {
                mDialog = null;
            }
        });
    }
    public void closeDialog(){
        if(mDialog != null && mDialog.isShowing()){
            mDialog.dismiss();
            mDialog = null;
        }
    }
}

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