【Android】 分享一个完整的项目，适合新手！

/**
	 * 初始化imageLoader
	 */
	public void initImageLoader() {
		File cacheDir = StorageUtils.getCacheDirectory(getApplicationContext());
		ImageLoaderConfiguration config = new ImageLoaderConfiguration.Builder(
				getApplicationContext())
				.memoryCache(new LruMemoryCache(5 * 1024 * 1024))
				.memoryCacheSize(10 * 1024 * 1024)
				.discCache(new UnlimitedDiscCache(cacheDir))
				.discCacheFileNameGenerator(new HashCodeFileNameGenerator())
				.build();
		ImageLoader.getInstance().init(config);
	}

	public DisplayImageOptions getOptions(int drawableId) {
		return new DisplayImageOptions.Builder().showImageOnLoading(drawableId)
				.showImageForEmptyUri(drawableId).showImageOnFail(drawableId)
				.resetViewBeforeLoading(true).cacheInMemory(true)
				.cacheOnDisc(true).imageScaleType(ImageScaleType.EXACTLY)
				.bitmapConfig(Bitmap.Config.RGB_565).build();
	}

ImageLoader.getInstance().displayImage(
					avatarUrl,
					holder.mImage,
					MyApplication.getInstance().getOptions(
							R.drawable.user_icon_default_main),
					new SimpleImageLoadingListener() {
						@Override
						public void onLoadingComplete(String imageUri,
								View view, Bitmap loadedImage) {
							super.onLoadingComplete(imageUri, view, loadedImage);
						}
					});

// 设置PullToRefresh
		mListView.setMode(Mode.BOTH);
		mListView.setOnRefreshListener(new OnRefreshListener2<ListView>() {
			// 下拉Pulling Down
			@Override
			public void onPullDownToRefresh(
					PullToRefreshBase<ListView> refreshView) {
				String label = DateUtils.formatDateTime(MainAct.this,
						System.currentTimeMillis(), DateUtils.FORMAT_SHOW_TIME
								| DateUtils.FORMAT_SHOW_DATE
								| DateUtils.FORMAT_ABBREV_ALL);
				refreshView.getLoadingLayoutProxy().setLastUpdatedLabel(label);
				mListView.setMode(Mode.BOTH);
				pullFromUser = true;
				mRefreshType = RefreshType.REFRESH;
				pageNum = 0;
				lastItemTime = getCurrentTime();
				//获取数据
				fetchData();
			}

			// 上拉Pulling Up
			@Override
			public void onPullUpToRefresh(
					PullToRefreshBase<ListView> refreshView) {
				// 上拉的时候添加选项
				mRefreshType = RefreshType.LOAD_MORE;
				//获取数据
				fetchData();
			}

		});
		actualListView = mListView.getRefreshableView();
		actualListView.setFastScrollEnabled(true);
		mEntities = new ArrayList<RankEntity>();
		mAdapter = new MainListAdapter(MainAct.this, mEntities);
		actualListView.setAdapter(mAdapter);
		if (mEntities.size() == 0) {
			fetchData();
		}
		mListView.setState(State.RELEASE_TO_REFRESH, true);