现在我应该实现无限滚动到listview，为此我找到了一个最简单的代码
@Override
public void onScroll(AbsListView view, int firstVisibleItem,
int visibleItemCount, int totalItemCount) {
//leave this empty
}
@Override
public void onScrollStateChanged(AbsListView view, int scrollState) {
if (scrollState == SCROLL_STATE_IDLE) {
if (listView.getLastVisiblePosition() >= listView.getCount() - threshold) {
currentPage++;
//load more list items:
loadElements(currentPage);
}
}
}
但是现在我不知道如果在loadElements（当前页面）
中包含哪些内容答案 0 :(得分：1)
以下是您的示例代码。此列表滚动无限并使用线程，它会自动滚动。 （暂停和结束......）
当您触摸列表时，列出滚动暂停，当您松开时，它会继续自动滚动。
如果您在100毫秒以下触摸，则会在点击时将其视为项目。
您也可以向下或向上滚动，最终会继续自动滚动。
来想一想，它已经变成了网络列表。耻辱。 ：（
/////////////////////////////////////////////// ////////////////////////
列表项XML布局：item.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:padding="20dp"
android:orientation="vertical" >
<TextView
android:background="#00ff00"
android:layout_width="fill_parent"
android:layout_height="150dp"
android:id="@+id/name"
android:textColor="#000000"
android:textSize="26sp"
android:gravity="center"
android:textStyle="bold"/>
</LinearLayout>
/////////////////////////////////////////////// ////////////////////////
活动布局：activity_main.xml
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:padding="25dp"
android:gravity="center"
tools:context=".MainActivity" >
<ListView
android:id="@+id/list"
android:layout_width="fill_parent"
android:layout_height="450dp"
android:background="#bbbbbb"
android:divider="#000000"/>
</RelativeLayout>
/////////////////////////////////////////////// ////////////////////////
活动代码（包括适配器和可运行线程）：MainActivity.java
public class MainActivity extends Activity {
ListView list;
long startTime;
long endTime;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
list = (ListView) findViewById(R.id.list);
List<String> mList = new ArrayList<String>();
String str;
for(int i=0;i<10;i++){
str = new String("Data --- "+i);
mList.add(str);
}
LAdapter adapter = new LAdapter(this,0,mList);
list.setAdapter(adapter);
final YourRunnable runy = new YourRunnable();
list.setOnTouchListener(new OnTouchListener() {
@Override
public boolean onTouch(View v, MotionEvent event) {
if(event.getAction() == MotionEvent.ACTION_DOWN ){
startTime= (new Date()).getTime();
runy.onPause();//pausing thread actually pauses scrolling
}
if(event.getAction() == MotionEvent.ACTION_UP){
endTime= (new Date()).getTime();
if((endTime - startTime)<=100){//100 mill second limit for click
//Log.i("ITEM CLICK() ", "item : ");
}
runy.onResume(); //resume scrolling
}
return false;
}
});
new Thread(runy).start();
}
class YourRunnable implements Runnable {
private Object mPauseLock;
private boolean mPaused;
private boolean mFinished;
public YourRunnable() {
mPauseLock = new Object();
mPaused = false;
mFinished = false;
}
public void run() {
while (!mFinished) {
//for loop is not infinite but enough as Integer.MAX_VALUE
for (int index = 0; index < list.getAdapter().getCount(); index++) {
list.smoothScrollToPositionFromTop(list.getLastVisiblePosition() + 1, 0, 10000);
try {
// it helps scrolling to stay smooth as possible (by experiment)
Thread.sleep(10000);
synchronized (mPauseLock) {
while (mPaused) {
try {
mPauseLock.wait();//putting thread in wait list of mPauseLock object
} catch (InterruptedException e) {
}
}
}
} catch (Exception e) {
e.printStackTrace();
}
}
}
}
/**
* Call this method to pause thread.
*/
public void onPause() {
synchronized (mPauseLock) {
mPaused = true;
}
}
/**
* Call this method to resume thread.
*/
public void onResume() {
synchronized (mPauseLock) {
mPaused = false;
mPauseLock.notifyAll();//notify all object that are waiting on the wait list of mPauseLock object
}
}
}
private class LAdapter extends ArrayAdapter{
List<String> mlist;
Context mContext;
LayoutInflater inflater;
public final int HALF_MAX_VALUE = Integer.MAX_VALUE/2;
public final int MIDDLE;
public LAdapter(Context ctx,int resId, List<String> objects){
super(ctx, resId, objects);
mContext = ctx;
mlist = objects;
inflater = (LayoutInflater) mContext
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
MIDDLE = HALF_MAX_VALUE - HALF_MAX_VALUE % mlist.size();
}
@Override
public int getCount() {
// TODO Auto-generated method stub
return Integer.MAX_VALUE;
}
@Override
public String getItem(int position) {
// TODO Auto-generated method stub
int relativePos = position % mlist.size();
Log.i("RELATIVE : "," POS:"+relativePos);
return mlist.get(relativePos);
}
@Override
public long getItemId(int position) {
// TODO Auto-generated method stub
return 0;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
// Log.i("POSITION TAG", "POSITION : "+position);
// if(position>(getCount()-1)){
// return null;
// }
ViewHolder holder = null;
if (convertView == null)
{
holder = new ViewHolder();
convertView = inflater.inflate(R.layout.item, parent, false);
holder.name = (TextView) convertView.findViewById(R.id.name);
convertView.setTag(holder);
}
else
{
holder = (ViewHolder) convertView.getTag();
}
String model = getItem(position);
holder.name.setText(model);
convertView.setOnClickListener(new ListenerT(model) {
@Override
public void onClick(View v) {
Log.i("CLICK", "ITEM---"+name );
}
});
return convertView;
}
}
//use your own listener to pass parameter
private class ListenerT implements OnClickListener{
String name;
public ListenerT(String nm){
name = nm;
}
@Override
public void onClick(View v) {
}
}
private class ViewHolder{
TextView name;
}
}