关于android中gridview数据量很大的时分，在加载gridview时会出现卡顿的现象

好的解决办法就是先加载一定数量的数据，然后在最下方提示正在加载！
动态加载就是把放入adapter中的数据分好几次加载。在用户拖动gridview时再加载一定的数据，和sina微博的客户端类似。
给gridview添加OnScrollListener监听事件默认会覆盖下面两个方法：

下面列举个列子：

<com.ui.widget.LazyGridView xmlns:android="http://schemas.android.com/apk/res/android"    android:id="@+id/gridview"    android:layout_width="fill_parent"    android:layout_height="fill_parent"    android:gravity="center"    android:horizontalSpacing="10dp"    android:listSelector="@android:color/transparent"    android:numColumns="2"    android:padding="20dp"    android:stretchMode="columnWidth"    android:verticalSpacing="10dp" />

lazyGridView:

/** * 滚动到底部自动刷新 *  * @author yinghui.hong *  */public class LazyGridView extends GridView implements OnScrollListener {	public LazyGridView(Context context) {		super(context);	}	public LazyGridView(Context context, AttributeSet attrs) {		super(context, attrs);	}	public LazyGridView(Context context, AttributeSet attrs, int defStyle) {		super(context, attrs, defStyle);	}	@Override	public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount) {	}	/**	 * 列表视图滚动	 */	@Override	public void onScrollStateChanged(AbsListView view, int scrollState) {		switch (scrollState) {		case OnScrollListener.SCROLL_STATE_IDLE:			Log.v("onScrollStateChanged", "已经停止：SCROLL_STATE_IDLE");			// 判断滚动到底部			if (view.getLastVisiblePosition() == (view.getCount() - 1)) {				Log.v("onScrollStateChanged", "到底部啦。可以请求刷新咯~~~~~~");				if (listener != null) {					listener.onScrollBottom();				}			}			break;		case OnScrollListener.SCROLL_STATE_FLING:			Log.v("onScrollStateChanged", "开始滚动：SCROLL_STATE_FLING");			break;		case OnScrollListener.SCROLL_STATE_TOUCH_SCROLL:			Log.v("onScrollStateChanged", "正在滚动：SCROLL_STATE_TOUCH_SCROLL");			break;		}	}	private OnScrollBottomListener listener;	public void setOnScrollBottomListener(OnScrollBottomListener listener) {		this.setOnScrollListener(this);		this.listener = listener;	}	public void removeOnScrollBottomListener() {		listener = null;		System.out.println("removeOnScrollBottomListener");	}	/**	 * 列表视图滚动到底部监听器	 * 	 * @author yinghui.hong	 * 	 */	public interface OnScrollBottomListener {		/**		 * 列表视图滚动到底部时响应		 */		public void onScrollBottom();	}}

主activity:

	@Override	protected void onCreate(Bundle savedInstanceState) {		super.onCreate(savedInstanceState);		setContentView(R.layout.activity_circle);		getActionBar().setDisplayHomeAsUpEnabled(true);		mBeans = new ArrayList<CircleResBean>();		mAdapter = new CircleAdapter(this, mBeans);		gridView = (LazyGridView) findViewById(R.id.gridview);		gridView.setAdapter(mAdapter);		gridView.setOnScrollBottomListener(this);		mPageIndex = 0;		queryJoinedCircles(mPageIndex);	}