常用的代码块
// 执行线程，
private Thread mThread;
mThread = null;
if (mThread == null)
{
mThread = new Thread(){
public void run(){
super.run();
}
};
}
if (!mThread.isAlive())
{
mThread.start();
}
列表上拉加载数据
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center"
android:orientation="horizontal"
>
<ProgressBar
android:id="@+id/pb_fpcf"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
style="\?android:attr/progressBarStyleSmall"
/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/tv_more_comment"
android:textColor="@color/gray"
android:textSize="12sp"
/>
</LinearLayout >
//记录当前状态
private int pageIndex=2;
private int mScrollState;
private View mFooter;
mFooter.setVisibility(View.GONE);
//列表页脚
mFooter = LayoutInflater.from(mContext).inflate(
R.layout.fragment_post_comment_footer, null);
mFooter.setVisibility(View.GONE);
lvComments.addFooterView(mFooter);
//给ListView添加滚动监听器
lvComments.setOnScrollListener(commentsOnScrollL);
注册滚动条监听事件
OnScrollListener commentsOnScrollL = new OnScrollListener()
{
@Override
public void onScroll(AbsListView view, int firstVisibleItem,
int visibleItemCount, int totalItemCount)
{
//Log.v(TAG,
//"----------------------------------------------------------onScroll called!");
// TODO Auto-generated method stub
// 可视的最后一个列表项的索引
int lastVisibleItem = firstVisibleItem + visibleItemCount - 1;
//当列表正处于滑动状态且滑动到列表底部时，执行
if (mScrollState != AbsListView.OnScrollListener.SCROLL_STATE_IDLE
&& lastVisibleItem == totalItemCount - 1)
{// 执行线程 获取数据
mFooter.setVisibility(View.VISIBLE);
getData();
}
}
@Override
public void onScrollStateChanged(AbsListView view, int scrollState)
{
// TODO Auto-generated method stub
mScrollState = scrollState;
}
//下拉刷新
private ListViewHeaderPullRefresh listView;
adapter.notifyDataSetChanged();
listView.onRefreshComplete();
listView = (ListViewHeaderPullRefresh) view.findViewById(R.id.lv_al);
listView.setonRefreshListener(new OnRefreshListener()
{
public void onRefresh()
{
pb.setVisibility(View.VISIBLE);
new Thread()
{
public void run()
{
try
{
sleep(1000);
Message msg = new Message();
msg.what = 1;
mHandler.sendMessage(msg);
}
catch (InterruptedException e)
{
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}.start();
}
});
};