/** JHava <br>
    *项目名称：FastAndroid<br><br>
    *包名：android.com.fastandroid.network<br>
    *当前类作用：统一管理网络请求<br>
    *作者：longlyboyhe on 2015/11/10 16:02<br>
    *邮箱：longlyboyhe@126.com<br>
    **/
       public class RetrofitHelp {
       public static final String BASE_URL = "http://api.myservice.com";<br/>
       public static RESTApi getApi() {
       if (api == null) {
        OkHttpClient client = new OkHttpClient();
        client.setReadTimeout(12, TimeUnit.SECONDS);
        Retrofit retrofit = new Retrofit.Builder()
                .baseUrl(BASE_URL)
                .addConverterFactory(GsonConverterFactory.create())
                .build();
        api = retrofit.create(RESTApi.class);
     }
     return api;
       }
     }

PermissionUtil.java负责对用户权限访问管理。

public abstract class CommonAdapter<T> extends BaseAdapter {
protected LayoutInflater mInflater;
protected Context mContext;
protected List<T> mDatas = new ArrayList<T>();
protected final int mItemLayoutId;

public CommonAdapter(Context context, List<T> mDatas, int itemLayoutId) {
	this.mContext = context;
	this.mInflater = LayoutInflater.from(mContext);
	this.mDatas = mDatas;
	this.mItemLayoutId = itemLayoutId;
}

/*
 * 分页时添加数据
 * 
    */	
public void addData(List<T> mDatas) {
	this.mDatas.addAll(mDatas);
	notifyDataSetChanged();
}

/*
 * 设置或者更新添加数据
 * 
    */	
public void setData(List<T> mDatas) {
	this.mDatas = mDatas;
	notifyDataSetChanged();
}

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

@Override
public T getItem(int position) {
	return mDatas.get(position);
}

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

@Override
public View getView(int position, View convertView, ViewGroup parent) {
	final ViewHolder viewHolder = getViewHolder(position, convertView, parent);
	convert(viewHolder, getItem(position));
	return viewHolder.getConvertView();

}

public abstract void convert(ViewHolder helper, T item);

private ViewHolder getViewHolder(int position, View convertView, ViewGroup parent) {
	return ViewHolder.get(mContext, convertView, parent, mItemLayoutId, position);
}
}