# GooglePlayCQCDay02

**Repository Path**: googlepalycqc/GooglePlayCQCDay02

## Basic Information

- **Project Name**: GooglePlayCQCDay02
- **Description**: 第二天
- **Primary Language**: Unknown
- **License**: Not specified
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 0
- **Forks**: 0
- **Created**: 2016-10-20
- **Last Updated**: 2020-12-19

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

# 简介 #
完成首页+应用+游戏，这3个 tab，包含的知识点有：请求数据 +pullTofresh + ImageLoader +轮播图 + listView 

# Step1:listView显示数据 #
## HomeFrag: ##
> 注意：更新ui需要再主线程，所以CommonUtil.runOnUIThread（...）

```
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
		Bundle savedInstanceState) {
	contentPager = new ContentPager(getActivity()) {

		@Override
		public Object requestData() {
			return getData();
		}

		@Override
		public View createSuccessView() {
			return getSuccessView();
		}
	};
	return contentPager;
}

protected View getSuccessView() {
	view = View.inflate(getActivity(), R.layout.frag_home, null);
	listView = (ListView) view.findViewById(R.id.listView);
	adapter = new HomeFragAdapter(appsList);
	listView.setAdapter(adapter);
	return view;
}

protected Object getData() {
	String json = HttpHelper.get(NetUrl.GAME +appsList.size());
	List<AppInfoBean> list = (List<AppInfoBean>) GsonUtil.jsonToList(json, new TypeToken<List<AppInfoBean>>() {}.getType());
	addAndRefreshData(list);
	return list;
}

private void addAndRefreshData(List<AppInfoBean> list) {
	appsList.addAll(list);
	
	CommonUtil.runOnUIThread(new Runnable() {
		
		@Override
		public void run() {
			adapter.notifyDataSetChanged();
		}
	});
}
```
## HomeFragAdapter: ##
> 格式化app的大小：包：String android.text.format: 方法： Formatter.formatFileSize(Context context, long number)

```
public class HomeFragAdapter extends MyBaseAdapter<AppInfoBean> {

	public HomeFragAdapter(List<AppInfoBean> list) {
		super(list);
	}

	@Override
	public View getView(int position, View convertView, ViewGroup parent) {
		ViewHolder holder;
		if (convertView == null) {
			convertView = View.inflate(parent.getContext(), R.layout.item_home_frag, null);
			holder = new ViewHolder(convertView);
			convertView.setTag(holder);
		} else {
			holder = (ViewHolder) convertView.getTag();
		}
		AppInfoBean info = list.get(position);

		ImageLoader.getInstance().displayImage(NetUrl.IMAGE_PREFIX + info.getIconUrl(), holder.iv, ImageLoaderOptions.options);
		holder.tv_name.setText(info.getName());
		holder.tv_size.setText("" + Formatter.formatFileSize(MyApplication.getContext(), info.getSize()));
		holder.tv_desc.setText(info.getDes());
		holder.ratingBar.setRating(info.getStars());

		return convertView;
	}

	public class ViewHolder {

		public ImageView iv;
		public RatingBar ratingBar;
		public TextView tv_name;
		public TextView tv_size;
		public TextView tv_desc;

		public ViewHolder(View itemView) {
			super();
			iv = (ImageView) itemView.findViewById(R.id.iv_item_frag_home);
			ratingBar = (RatingBar) itemView.findViewById(R.id.ratingBar);
			tv_name = (TextView) itemView.findViewById(R.id.tv_name_frag_home);
			tv_size = (TextView) itemView.findViewById(R.id.tv_app_size_frag_home);
			tv_desc = (TextView) itemView.findViewById(R.id.tv_app_desc_frag_home);
		}
	}
}
```
## RatingBar ##
```
<RatingBar
    android:id="@+id/ratingBar"
    style="@android:style/Widget.RatingBar"
    android:layout_width="wrap_content"
    android:layout_height="14dp"
    android:layout_marginBottom="2dp"
    android:layout_marginTop="2dp"
    android:isIndicator="true"
    android:progressDrawable="@drawable/ratingbar_drawable" />

```
ratingbar_drawable.xml
```
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:id="@+android:id/background" android:drawable="@drawable/rating_small_empty" />
    <item android:id="@+android:id/secondaryProgress" android:drawable="@drawable/rating_small_half" />
    <item android:id="@+android:id/progress" android:drawable="@drawable/rating_small_full" />
</layer-list>
```
# 添加刷新 pulltorefresh #
参考：[第三方开源库：Android-PullToRefresh-master简单使用 ](http://blog.csdn.net/ss1168805219/article/details/52081566)
```
protected View getSuccessView() {
	view = View.inflate(getActivity(), R.layout.frag_home, null);
	ptr = (PullToRefreshListView) view.findViewById(R.id.pull_refresh_list);
	ptr.setMode(Mode.BOTH);
	ptr.setOnRefreshListener(new OnRefreshListener<ListView>() {

		@Override
		public void onRefresh(PullToRefreshBase<ListView> refreshView) {
			if (refreshView.getCurrentMode() == Mode.PULL_FROM_START) {// 下拉刷新
				handler.sendEmptyMessageDelayed(WHAT1, 1500);
			} else {// 上拉加载更多
				// handler.sendEmptyMessageDelayed(WHAT2, 1500);//模拟上拉加载更多
				contentPager.loadDataAndRefresh();
			}
		}

	});
	listView = ptr.getRefreshableView();
	adapter = new HomeFragAdapter(appsList);
	listView.setAdapter(adapter);
	return view;
}
```
# imageloader #
[第三方开源库：imageLoader的使用 ](http://blog.csdn.net/ss1168805219/article/details/51084239)

先要在application中初始化，在设置DisplayImageOptions，然后根据url显示图片
```
ImageLoader.getInstance().displayImage(NetUrl.IMAGE_PREFIX + info.getIconUrl(), holder.iv, ImageLoaderOptions.options);
```
# 轮播图 #
```
private void initBanner() {
	findHeadViews();
	initPictDescList();
	initDots();

	initViewPager();
}

private void initViewPager() {
	BannerPagerAdapter adapter = new BannerPagerAdapter(pictUrlList);
	viewPager.setAdapter(adapter);
	listView.addHeaderView(headView);
	tv_desc.setText("第一张图");
	tv_ratio.setText(1 + "/" + pictUrlList.size());
	viewPager.setOnPageChangeListener(new OnPageChangeListener() {

		@Override
		public void onPageSelected(int position) {
			tv_desc.setText(pictDescList.get(position));
			tv_ratio.setText(1 + position + "/" + pictUrlList.size());
			for (int i = 0; i < dotsList.size(); i++) {
				if (i == position) {
					dotsList.get(i).setBackgroundResource(R.drawable.dot_focus);
				} else {
					dotsList.get(i).setBackgroundResource(R.drawable.dot_normal);
				}
			}
		}

		@Override
		public void onPageScrolled(int arg0, float arg1, int arg2) {}

		@Override
		public void onPageScrollStateChanged(int arg0) {}
	});
}

private void findHeadViews() {
	headView = View.inflate(MyApplication.getContext(), R.layout.layout_banner, null);
	viewPager = (ViewPager) headView.findViewById(R.id.viewpager_banner);
	tv_desc = (TextView) headView.findViewById(R.id.tv_desc_banner);
	tv_ratio = (TextView) headView.findViewById(R.id.tv_ratio_banner);
	ll_dots = (LinearLayout) headView.findViewById(R.id.ll_dots);
}

private void initDots() {
	ll_dots.removeAllViews();
	dotsList.clear();

	LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(10, 10);
	for (int i = 0; i < pictUrlList.size(); i++) {
		TextView tv = new TextView(getActivity());
		if (i == 0) {
			tv.setBackgroundResource(R.drawable.dot_focus);
		} else {
			tv.setBackgroundResource(R.drawable.dot_normal);
		}
		params.setMargins(10, 0, 0, 0);
		ll_dots.addView(tv, params);
		dotsList.add(tv);
	}
}

private void initPictDescList() {
	for (int i = 0; i < pictUrlList.size(); i++) {
		pictDescList.add("第" + (i + 1) + "张图");
	}
}
```