setOnClickListener

package com.yuchongxia.internetradio.widget;



import android.content.Context;

import android.util.AttributeSet;

import android.view.LayoutInflater;

import android.view.View;

import android.widget.LinearLayout;



import com.yuchongxia.internetradio.R;



public class MessageView extends LinearLayout {

    private OnClickListener ml;



    public MessageView(Context context) {

        super(context);

        LayoutInflater.from(getContext()).inflate(R.layout.message_view, this);

        findViewById(R.id.button_refresh).setOnClickListener(onClickListener);

    }



    public MessageView(Context context, AttributeSet attrs) {

        super(context, attrs);

        LayoutInflater.from(getContext()).inflate(R.layout.message_view, this);

        findViewById(R.id.button_refresh).setOnClickListener(onClickListener);

    }



    OnClickListener onClickListener = new OnClickListener() {

        @Override

        public void onClick(View v) {

            if (ml != null) {

                ml.onClick(v);

            }

        }

    };



    @Override

    public void setOnClickListener(OnClickListener l) {

        ml = l;

        super.setOnClickListener(ml);

    }

}

 

package com.yuchongxia.internetradio.widget;



import java.io.IOException;

import java.util.ArrayList;

import java.util.List;

import java.util.Locale;



import org.json.JSONArray;

import org.json.JSONException;

import org.json.JSONObject;



import android.content.Context;

import android.os.Handler;

import android.os.Message;

import android.util.AttributeSet;

import android.util.Log;

import android.view.LayoutInflater;

import android.view.View;

import android.widget.RelativeLayout;



import com.yuchongxia.internetradio.R;

import com.yuchongxia.internetradio.constant.Constant;

import com.yuchongxia.internetradio.pojo.ContentCategory;

import com.yuchongxia.internetradio.util.HttpClientUtil;

import com.yuchongxia.internetradio.util.Util;



/**

 * 分类导航组件

 * 

 * @author Andy

 * @date 2013-9-3

 */

public class NavigationBar extends RelativeLayout {

    private Context context;

    private RelativeLayout.LayoutParams params;

    private RelativeLayout container;

    // 焦点所在位置

    private int focusPosition = 1;

    private OnMyClickListener onMyClickListener;

    private OnDataPreparedListener onDataPreparedListener;

    private List<ContentCategory> list;



    // private ContentCategoryDao contentCategoryDao;



    public NavigationBar(Context context, AttributeSet attrs) throws IOException, JSONException {

        super(context, attrs);

        this.context = context;

        LayoutInflater.from(getContext()).inflate(R.layout.navigation_bar, this);

        container = (RelativeLayout) findViewById(R.id.layout_navigationBar);

        list = new ArrayList<ContentCategory>();

        // contentCategoryDao = new ContentCategoryDao(context);

        if (Util.isNetworkAvailable(context)) {

            getRingCategory();

        }

    }



    // public void writeDB() {

    // new Thread() {

    // @Override

    // public void run() {

    // super.run();

    // // contentCategoryDao.insert(list);

    // }

    // }.start();

    // }



    public void parseJson(final String data) {

        new Thread() {

            @Override

            public void run() {

                try {

                    JSONArray jsonArray = new JSONArray(data);

                    if (jsonArray == null || jsonArray.length() == 0) {

                        handler.sendEmptyMessage(0);

                        return;

                    }



                    Log.i(Constant.TAG, "开始解析网络获取的数据");

                    for (int i = 0; i < jsonArray.length(); i++) {

                        ContentCategory contentCategory = new ContentCategory();

                        JSONObject object = (JSONObject) jsonArray.getJSONObject(i);



                        int categoryId = object.getInt("categoryId");

                        String categoryName = object.getString("categoryName");

                        int sort = object.getInt("order");

                        int publishTime = object.getInt("publishTime");



                        contentCategory.setCategoryId(categoryId);

                        contentCategory.setCategoryName(categoryName);

                        contentCategory.setSort(sort);

                        contentCategory.setPublishTime(publishTime);



                        list.add(contentCategory);

                    }



                    Log.i(Constant.TAG, "解析后数据  jsList size:" + list.size());



                    // 全部

                    ContentCategory temp = new ContentCategory();

                    temp.setCategoryId(-1);

                    temp.setCategoryName(context.getString(R.string.all));

                    list.add(0, temp);



                    temp = new ContentCategory();

                    temp.setCategoryId(-2);

                    temp.setCategoryName(context.getString(R.string.collect));

                    list.add(0, temp);



                    temp = new ContentCategory();

                    temp.setCategoryId(-3);

                    temp.setCategoryName(context.getString(R.string.local_radio));

                    list.add(temp);



                    temp = new ContentCategory();

                    temp.setCategoryId(-4);

                    temp.setCategoryName(context.getString(R.string.more));

                    list.add(temp);



                    handler.sendEmptyMessage(1);

                } catch (JSONException e) {

                    Log.i(Constant.TAG, "解析数据时出错");

                    e.printStackTrace();

                }

            }

        }.start();

    }



    public void getRingCategory() {

        new Thread() {

            @Override

            public void run() {

                String data = HttpClientUtil.get(Constant.CONTENT_CATEGOARY_URL);

                parseJson(data);

            }

        }.start();

    }



    public void layout() {

        container.removeAllViews();

        NavigationButton btn;



        int cnt = list.size();

        if (onDataPreparedListener != null) {

            Log.i(Constant.TAG, "prepared");

            onDataPreparedListener.onPrepared(list);

        }



        for (int i = 0; i < cnt; i++) {

            params = new RelativeLayout.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);

            btn = new NavigationButton(context);

            btn.setId(i + 1);

            btn.setText(list.get(i).getCategoryName());

            btn.setOnClickListener(clickListener);

            if (i == 0) {

                btn.setChoosed(true);

            }



            String language = Locale.getDefault().getLanguage();

            String country = Locale.getDefault().getCountry();

            // zh CN

            // zh TW

            // en **

            if (language.equals("zh") && country.equals("CN")) {

            } else if (language.equals("zh") && country.equals("TW")) {

            } else {

            }



            if (i > 0) {

                params.addRule(RelativeLayout.BELOW, i);

            }

            container.addView(btn, params);

        }

    }



    private Handler handler = new Handler() {

        @Override

        public void handleMessage(Message msg) {

            super.handleMessage(msg);

            if (msg.what == 0) {

                Log.i(Constant.TAG, "无法获取数据");

            } else if (msg.what == 1) {

                layout();

            }

        }

    };



    /**

     * 刷新NavigationBar

     */

    public void refresh() {

        getRingCategory();

        // 恢复当前位置标示

        focusPosition = 1;

    }



    /**

     * 取 NavigationBar 第一项的分类id

     * 

     * @return 第一项的分类id

     */

    // public String getFirst() {

    // if (list.size() != 0) {

    // return list.get(0).getCategoryId();

    // } else {

    // return "";

    // }

    // }



    /**

     * 焦点是否在第一项

     */

    public boolean isFocusOnFirst() {

        return focusPosition == 1 ? true : false;

    }



    public void setChoosed(int id) {

        NavigationButton btn = (NavigationButton) findViewById(focusPosition);

        btn.setChoosed(false);

        btn = (NavigationButton) findViewById(id);

        btn.setChoosed(true);

        // 标记当前选中项

        focusPosition = id;

    }



    OnClickListener clickListener = new OnClickListener() {

        @Override

        public void onClick(View v) {

            int id = v.getId();

            // 取消选中

            NavigationButton btn = (NavigationButton) findViewById(focusPosition);

            btn.setChoosed(false);

            focusPosition = id;

            // 重新选中

            btn = (NavigationButton) findViewById(id);

            btn.setChoosed(true);



            if (onMyClickListener != null && list.size() != 0) {

                onMyClickListener.onClick(id - 1);

            }

        }

    };



    /**

     * 回调接口

     * 

     */

    public interface OnDataPreparedListener {

        public void onPrepared(List<ContentCategory> list);

    }



    public interface OnMyClickListener {

        public void onClick(int buttonId);

    }



    /**

     * 设置一个监听，供外部调用的方法

     */

    public void setOnMyClickListener(OnMyClickListener listener) {

        this.onMyClickListener = listener;

    }



    /**

     * 设置一个监听，供外部调用的方法

     */

    public void setOnDataPreparedListener(OnDataPreparedListener onDataPreparedListener) {

        this.onDataPreparedListener = onDataPreparedListener;

    }

}