@Override
public void onClick(View v) {
asyncTask = new LoadNewsAsyncTask();
switch (v.getId()) {
case R.id.loadmore_btn:
asyncTask.execute(CATEGORY_TYPE, mNewsData.size(), false);
break;
case R.id.titlebar_refresh:
asyncTask.execute(CATEGORY_TYPE, 0, true);
break;
}
}
@Override
public void onClick(View v) {
loadNewsAsyncTask = new LoadNewsAsyncTask();
switch (v.getId()) {
case R.id.loadmore_btn:
// 获取该栏目下新闻
// getSpeCateNews(mCid,mNewsData,mNewsData.size(),false);
// 通知ListView进行更新
// mNewsListAdapter.notifyDataSetChanged();
loadNewsAsyncTask.execute(mCid, mNewsData.size(), false);
break;
case R.id.titlebar_refresh:
loadNewsAsyncTask.execute(mCid, 0, true);
break;
}
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
mHolder = ((MainActivity) getActivity()).getViewHolder();
mNewsManager = new NewsManager();
loadMoreLayout = getActivity().getLayoutInflater().inflate(R.layout.loadmore, null);
mLoadMoreBtn = (Button) loadMoreLayout.findViewById(R.id.loadmore_btn);
mHeadView = getActivity().getLayoutInflater().inflate(R.layout.first_image, null);
firstImage = (ImageView) mHeadView.findViewById(R.id.firstImage);
asyncTask.execute(CATEGORY_TYPE, 0, true);
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
mInflater = getLayoutInflater();
mNewsData = new ArrayList<HashMap<String, Object>>();
mNewsList = (ListView) findViewById(R.id.newslist);
mTitlebarRefresh = (Button) findViewById(R.id.titlebar_refresh);
mLoadnewsProgress = (ProgressBar) findViewById(R.id.loadnews_progress);
mTitlebarRefresh.setOnClickListener(loadMoreListener);
// 把px转换成dip
mColumnWidthDip = DensityUtil.px2dip(this, COLUMNWIDTHPX);
mFlingVelocityDip = DensityUtil.px2dip(this, FLINGVELOCITYPX);
// 获取新闻分类
String[] categoryArray = getResources().getStringArray(R.array.categories);
// 把新闻分类保存到List中
final List<HashMap<String, Category>> categories = new ArrayList<HashMap<String, Category>>();
// 分割新闻类型字符串
for (int i = 0; i < categoryArray.length; i++) {
String[] temp = categoryArray[i].split("[|]");
if (temp.length == 2) {
int cid = StringUtil.String2Int(temp[0]);
String title = temp[1];
Category type = new Category(cid, title);
HashMap<String, Category> hashMap = new HashMap<String, Category>();
hashMap.put("category_title", type);
categories.add(hashMap);
}
}
// 默认选中的新闻分类
mCid = 1;
mCatName = "关于我们";
// 创建Adapter，指明映射字段
// SimpleAdapter categoryAdapter = new SimpleAdapter(this, categories,
// R.layout.category_title,new String[]{"category_title"}, new int[]{R.id.category_title});
CustomSimpleAdapter categoryAdapter =
new CustomSimpleAdapter(
this,
categories,
R.layout.category_title,
new String[] {"category_title"},
new int[] {R.id.category_title});
GridView category = new GridView(this);
category.setColumnWidth(mColumnWidthDip); // 每个单元格宽度
category.setNumColumns(GridView.AUTO_FIT); // 单元格数目
category.setGravity(Gravity.CENTER); // 设置对其方式
// 设置单元格选择是背景色为透明，这样选择时就不现实黄色背景
// category.setSelector(new ColorDrawable(Color.TRANSPARENT));
int width = mColumnWidthDip * categories.size();
LayoutParams params = new LayoutParams(width, LayoutParams.FILL_PARENT);
// 更新category宽度和高度，这样category在一行显示
category.setLayoutParams(params);
// 设置适配器
category.setAdapter(categoryAdapter);
// 把category加入到容器中
LinearLayout categoryList = (LinearLayout) findViewById(R.id.category_layout);
categoryList.addView(category);
// 添加单元格点击事件
category.setOnItemClickListener(
new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
TextView categoryTitle;
// 恢复每个单元格背景色
for (int i = 0; i < parent.getChildCount(); i++) {
categoryTitle = (TextView) (parent.getChildAt(i));
categoryTitle.setBackgroundDrawable(null);
categoryTitle.setTextColor(0XFFADB2AD);
}
// 设置选择单元格的背景色
categoryTitle = (TextView) (parent.getChildAt(position));
categoryTitle.setBackgroundResource(R.drawable.categorybar_item_background);
categoryTitle.setTextColor(0XFFFFFFFF);
// 获取选中的新闻分类id
mCid = categories.get(position).get("category_title").getCid();
mCatName = categories.get(position).get("category_title").getTitle();
// 获取该栏目下新闻
// getSpeCateNews(mCid,mNewsData,0,true);
// 通知ListView进行更新
// mNewsListAdapter.notifyDataSetChanged();
loadNewsAsyncTask = new LoadNewsAsyncTask();
loadNewsAsyncTask.execute(mCid, 0, true);
}
});
// 箭头
final HorizontalScrollView categoryScrollView =
(HorizontalScrollView) findViewById(R.id.category_scrollview);
Button categoryArrowRight = (Button) findViewById(R.id.category_arrow_right);
categoryArrowRight.setOnClickListener(
new Button.OnClickListener() {
@Override
public void onClick(View v) {
categoryScrollView.fling(mFlingVelocityDip);
}
});
// 填充ListView，在里边显示新闻列表
/*List<HashMap<String, String>> newsData = new ArrayList<HashMap<String, String>>();
for(int i = 0; i < 10; i++){
HashMap<String, String> hashMap = new HashMap<String, String>();
hashMap.put("newslist_item_title", "中天");
hashMap.put("newslist_item_digest", "中天信息公司成立了");
hashMap.put("newslist_item_source", "来自中天");
hashMap.put("newslist_item_ptime", "2013-03-07");
newsData.add(hashMap);
}*/
// 获取指定栏目的新闻列表
getSpeCateNews(mCid, mNewsData, 0, true);
mNewsListAdapter =
new SimpleAdapter(
this,
mNewsData,
R.layout.newslist_item,
new String[] {
"newslist_item_title",
"newslist_item_digest",
"newslist_item_source",
"newslist_item_ptime"
},
new int[] {
R.id.newslist_item_title,
R.id.newslist_item_digest,
R.id.newslist_item_source,
R.id.newslist_item_ptime
});
View loadMoreLayout = mInflater.inflate(R.layout.loadmore, null);
mNewsList.addFooterView(loadMoreLayout);
mNewsList.setAdapter(mNewsListAdapter);
mNewsList.setOnItemClickListener(
new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
Intent intent = new Intent(MainActivity.this, NewsDetailsActivity.class);
// 把需要的信息放到Intent中;
intent.putExtra("categoryName", mCatName);
intent.putExtra("newsDate", mNewsData);
intent.putExtra("position", position);
startActivity(intent);
}
});
mLoadMoreBtn = (Button) findViewById(R.id.loadmore_btn);
mLoadMoreBtn.setOnClickListener(loadMoreListener);
loadNewsAsyncTask = new LoadNewsAsyncTask();
loadNewsAsyncTask.execute(mCid, 0, true);
}
