setOnClickListener

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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;    }}

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