android dialog 筛选列表

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    android:layout_margin="@dimen/outer_border_width" >

    <RelativeLayout
        android:id="@+id/titlebar"
        android:layout_width="match_parent"

        android:layout_height="@dimen/titlebar_height"
        android:background="@color/vi_color" >

        <ImageView
            android:id="@+id/arrowLeftImg"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginLeft="5dp"
            android:layout_centerVertical="true"
            android:clickable="true"
            android:focusable="true"
            android:src="@drawable/icon_arrow_left_white" />
        <TextView
            android:id="@+id/title"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_centerHorizontal="true"
            android:layout_centerInParent="true"
            android:layout_centerVertical="true"
            android:text="筛选"
            android:textColor="@color/White"
            android:textSize="@dimen/titlebar_title_text_size" />

        <TextView
            android:id="@+id/tvOk"
            android:layout_width="wrap_content"
            android:layout_height="match_parent"
            android:layout_alignParentRight="true"
            android:layout_centerVertical="true"
            android:background="@drawable/sel_titlebar_menu_bg"
            android:clickable="true"
            android:focusable="true"
            android:focusableInTouchMode="true"
            android:gravity="center"
            android:paddingLeft="@dimen/titlebar_menu_padding"
            android:paddingRight="@dimen/titlebar_menu_padding"
            android:text="@string/ok"
            android:textColor="@drawable/sel_titlebar_menu_color"
            android:textSize="@dimen/titlebar_menu_text_size" />
    </RelativeLayout>
    <View
        android:layout_width="match_parent"
        android:layout_height="@dimen/divider_line_width"
        android:background="@color/divider_line_color" />

    <ListView
        android:id="@+id/lvFilterTitles"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:divider="@null"
        android:layoutAnimation="@anim/layout_anim_controller" />
</LinearLayout>

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:background="@color/White"
    android:gravity="center"
    android:orientation="vertical" >

    <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
        android:layout_width="fill_parent"
        android:layout_height="50dp"
        android:background="@color/White"
        android:gravity="center"
        android:weightSum="2"
        android:orientation="horizontal" >
        <TextView 
            android:id = "@+id/tvDialogTitle"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:gravity="center"
            android:layout_weight="1"
            android:textSize="@dimen/title_2_text_size"
        />
        <View
            android:layout_width="2px"
            android:layout_height="match_parent"
            android:layout_marginTop="0dp"
            android:background="@color/divider_line_color" />
        <TextView 
            android:id = "@+id/tvOk"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="@string/ok"
            android:gravity="center"
            android:textColor="@color/vi_color"
            android:layout_weight="1"
            android:textSize="@dimen/title_2_text_size"
        />
    </LinearLayout>
    <View
            android:layout_width="match_parent"
            android:layout_height="@dimen/divider_line_width"
            android:layout_marginTop="0dp"
            android:background="@color/divider_line_color" />"
    <ListView
        android:id="@+id/lvFilter"
        android:layout_width="fill_parent"
        android:layout_height="250dp"
        android:layout_gravity="center"
        android:cacheColorHint="#00000000" >
    </ListView>

</LinearLayout>

public class FilterActivity extends Activity implements OnClickListener {

    private static final String TAG = "FilterActivity";
    public static final String FILTER_STRING = "filter_string";
    public static final int FILTER_RESULT_CODE = 99;
    private AlertDialog builder;
    private ListView dialogLv;
    private TextView mTvCity;
    private TextView mTvDialogTitle;
    private Context mContext;
    private ListView mLvFilterTitles;
    
    private int mFilterItemIndex = -1;
    private ArrayList<FilterItem> mFilterItems = new ArrayList<FilterItem>();
    private ArrayList<String> mHospitalNames = null;
    private ArrayList<Hospital> mHospitalList = null;
    private FilterTitleAdapter adapter;
    private FilterTitleAdapter filterTitleAdapter;
    private TextView mTvOk;
    private ImageView mIvBack;
    private String mFilterString;
    private HashMap<String, String> mFilterKeyMap = new HashMap<String,String>();

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_filter);

        mContext = this;
        initFilterKeyMap();
        mLvFilterTitles = (ListView)findViewById(R.id.lvFilterTitles);
        mTvOk = (TextView)findViewById(R.id.tvOk);
        mIvBack = (ImageView)findViewById(R.id.arrowLeftImg);        
        mTvOk.setOnClickListener(this);
        mIvBack.setOnClickListener(this);
        filterTitleAdapter = new FilterTitleAdapter();
        mLvFilterTitles.setAdapter(filterTitleAdapter);
        mLvFilterTitles.setOnItemClickListener(new OnItemClickListener(){

            @Override
            public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
                mFilterItemIndex = position; //标记位置以便返回选中值                   
                buildDialog();
                }            
        });
    }
    private void buildDialog() {
        builder = new AlertDialog.Builder(this).create();
        builder.show();
        LayoutInflater inflater = LayoutInflater.from(this);
        final View viewDialog = inflater.inflate(R.layout.dialog_filter, null);

        mTvDialogTitle = (TextView)viewDialog.findViewById(R.id.tvDialogTitle);
        
        builder.setContentView(viewDialog);

        builder.getWindow().setGravity(Gravity.BOTTOM);
        dialogLv = (ListView) viewDialog.findViewById(R.id.lvFilter);
        TextView dialogOk = (TextView) viewDialog.findViewById(R.id.tvOk);
        dialogOk.setOnClickListener(new OnClickListener(){
            @Override
            public void onClick(View arg0) {
                builder.dismiss();                
            }            
        });
        
        String titleName = mFilterItems.get(mFilterItemIndex).name;
        String titleEName = mFilterItems.get(mFilterItemIndex).eName;
        mTvDialogTitle.setText(titleName);
        // 这个listview的用法没啥好说的,在这用的是android自带的适配模式
        dialogLv.setAdapter(new ArrayAdapter<String>(mContext, android.R.layout.simple_list_item_1, getDialogLvData(titleEName)));
        dialogLv.setOnItemClickListener(new OnItemClickListener(){
 
            @Override
            public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
                TextView tv = (TextView)viewDialog.findViewById(view.getId());
                 tv = (TextView)view.findViewById(android.R.id.text1);
                Toast.makeText(mContext, "点了 "+ position+ " "+tv.getText(), 0).show();
                //这里在点击后,更新上一层listview里的数据,这样就达到同步的效果了
                mFilterItems.get(mFilterItemIndex).content = (String) tv.getText();
                filterTitleAdapter.notifyDataSetChanged();
            }            
        });
    }
    
    private void initFilterKeyMap(){
        mFilterKeyMap.put("city", "城市");
        mFilterKeyMap.put("sex", "性别");
        mFilterKeyMap.put("star_level", "星级");
        mFilterKeyMap.put("age", "年龄");
        mFilterKeyMap.put("hospital", "医院");
    }
    
    private List<String> getDialogLvData(String key){ 
        List<String> data = new ArrayList<String>();    
        switch (key){
        case "city":
            data.add("深圳");        
            break;
        case "sex":
            data.add("男");        
            data.add("女");        
            break;
        case "star_level":
            data.add("1");        
            data.add("2");  
            data.add("3");        
            data.add("4");  
            data.add("5");        
            break;
        case "age":  
            data.add("20 - 29");  
            data.add("30 - 39");          
            break;
        case "hospital":
            break;
        }  
        return data;   
    }
    

    private class FilterTitleAdapter extends BaseAdapter {

        public FilterTitleAdapter() {
            super();
  
            for(Map.Entry<String, String> entry : mFilterKeyMap.entrySet()){ 
                FilterItem item = new FilterItem();
                item.name = entry.getValue();
                item.eName = entry.getKey();
                mFilterItems.add(item) ;
            }            
        }

        @Override
        public int getCount() {
            return mFilterItems.size();
        }

        @Override
        public FilterItem getItem(int position) {
            return mFilterItems.get(position);
        }

        @Override
        public long getItemId(int position) {
            return position;
        }

        @Override
        public View getView(int position, View convertView, ViewGroup parent) {
            ViewHolder holder;
            if (convertView == null){
                holder = new ViewHolder();
                convertView = View.inflate(mContext, R.layout.list_item_filter_title, null);
                holder.mTvFilterName = (TextView) convertView.findViewById(R.id.filterItemText);
                holder.mTvFilterContent = (TextView) convertView.findViewById(R.id.filterItemContent);
                convertView.setTag(holder);
            } else {
                holder = (ViewHolder) convertView.getTag();
            }
            FilterItem fi = mFilterItems.get(position);
            holder.mTvFilterName.setText(fi.name);
            holder.mTvFilterContent.setText(fi.content);
            return convertView;
        }
        
    }

    private class ViewHolder {
        TextView mTvFilterContent;
        TextView mTvFilterName;
    }

    @Override
    public void onClick(View v) {
        switch (v.getId()) {
        case R.id.arrowLeftImg:
            this.onBackPressed();
            break;
        case R.id.tvOk: //返回上一界面并传回数据
            getFilterString();  
            Intent i;
            i = this.getIntent();
            i.putExtra(FILTER_STRING, mFilterString);
            this.setResult(FILTER_RESULT_CODE, i);
            finish();
            break;
        default:
            break;
        }
        
    }

}