NxwAppLinksGridViewActivity.java

package com.jiuqi.njt.ui;

import java.util.ArrayList;

import android.app.Activity;
import android.content.Context;
import android.os.Bundle;
import android.text.TextUtils;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.GridView;
import android.widget.ImageView;
import android.widget.TextView;

import com.jiuqi.njt.R;
import com.jiuqi.njt.model.NxwAppVo;
import com.jiuqi.njt.model.NxwAppVoManager;
import com.jiuqi.njt.util.Constants;
import com.jiuqi.njt.util.TitleBarUtil;

public class NxwAppLinksGridViewActivity extends Activity{
	private String title;
	private int id;

	@Override
	protected void onCreate(Bundle savedInstanceState){
		super.onCreate(savedInstanceState);
		doinit();
	}

	private void doinit(){
		initParam();
		initWidgets();
		initListener();
		initUI();
	}

	private void initParam(){
		title = getIntent().getStringExtra(Constants.PARAM_TITLE);
		id = getIntent().getIntExtra(Constants.PARAM_ID, -1);
	}

	private void initWidgets(){
		setContentView(R.layout.layout_template_gridview);

		if(TextUtils.isEmpty(getIntent().getStringExtra(Constants.PARAM_TITLE))){
			title = "";
		}
		else{
			title = getIntent().getStringExtra(Constants.PARAM_TITLE);
		}

		View rlTitleBar = findViewById(R.id.titleBarStub);

		TitleBarUtil.createTitleBar(this, rlTitleBar, title, new OnClickListener(){

			@Override
			public void onClick(View v){
				NxwAppLinksGridViewActivity.this.finish();
			}
		});

		GridView gridView = (GridView)findViewById(R.id.gridView);

		LinksGridViewAdapter adapter =
		        new LinksGridViewAdapter(this, NxwAppVoManager.getInstance(this).getAppsFromCategory(id));
		gridView.setAdapter(adapter);

	}

	private class LinksGridViewAdapter extends BaseAdapter{

		private ArrayList<NxwAppVo> items = new ArrayList<NxwAppVo>();
		private LayoutInflater inflater;

		public LinksGridViewAdapter(Context context, ArrayList<NxwAppVo> items){
			if(null != items){
				this.items = items;
			}
			inflater = LayoutInflater.from(context);
		}

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

		@Override
		public Object getItem(int position){
			return items.get(position);
		}

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

		@Override
		public View getView(int position, View convertView, ViewGroup parent){
			ViewHolder holder = null;
			if(null == convertView){
				holder = new ViewHolder();

				convertView = inflater.inflate(R.layout.gridview_item_link, null);
				ImageView ivIco = (ImageView)convertView.findViewById(R.id.ivIco);
				holder.setIco(ivIco);
				TextView tvTitle = (TextView)convertView.findViewById(R.id.weatherTvTitle);
				holder.setTvTitle(tvTitle);
				convertView.setTag(holder);
			}
			else{
				holder = (ViewHolder)convertView.getTag();
			}

			try {
				final NxwAppVo vo = items.get(position);
				holder.getIco().setImageDrawable(vo.getIco());
				holder.getTvTitle().setText(vo.getName());
				convertView.setOnClickListener(new OnClickListener(){

					@Override
					public void onClick(View v){
						new CheckAppInstalledTask(NxwAppLinksGridViewActivity.this).execute(vo);
					}
				});
			} catch (Exception e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}

			return convertView;
		}
	}

	class ViewHolder{
		private TextView tvTitle;
		private ImageView ico;

		public TextView getTvTitle(){
			return tvTitle;
		}

		public void setTvTitle(TextView tvTitle){
			this.tvTitle = tvTitle;
		}

		public ImageView getIco(){
			return ico;
		}

		public void setIco(ImageView ico){
			this.ico = ico;
		}
	}

	private void initListener(){
	}

	private void initUI(){
	}

}