// 更新指定item的数据
private void updateView(int index) {
int visiblePos = listView.getFirstVisiblePosition();
int offset = index - visiblePos;
// Log.e("", "index="+index+"visiblePos="+visiblePos+"offset="+offset);
// 只有在可见区域才更新
if (offset < 0) return;
View view = listView.getChildAt(offset);
final DownloadEntry entry = downloadEntries.get(index);
ViewHolder holder = (ViewHolder) view.getTag();
// Log.e("", "id="+app.id+", name="+app.name);
holder.statusText.setText(entry.toString());
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
if (convertView == null || convertView.getTag() == null) {
convertView = LayoutInflater.from(ListActivity.this).inflate(R.layout.listview_item, null);
holder = new ViewHolder();
holder.downloadBtn = (Button) convertView.findViewById(R.id.download_btn);
holder.downloadBtn2 = (Button) convertView.findViewById(R.id.download_btn2);
holder.statusText = (TextView) convertView.findViewById(R.id.show_txt);
convertView.setTag(holder);
} else {
holder = (ViewHolder) convertView.getTag();
}
final DownloadEntry entry = downloadEntries.get(position);
holder.statusText.setText(entry.toString());
holder.downloadBtn.setOnClickListener(
new View.OnClickListener() {
@Override
public void onClick(View v) {
if (entry.getStatus() == DownloadStatusLevel.IDLE.value()) {
DownloadManager.getInstance(ListActivity.this).add(entry);
} else if (entry.getStatus() == DownloadStatusLevel.DOWNLOADING.value()
|| entry.getStatus() == DownloadStatusLevel.WAITING.value()) {
DownloadManager.getInstance(ListActivity.this).pause(entry);
} else if (entry.getStatus() == DownloadStatusLevel.PAUSE.value()) {
DownloadManager.getInstance(ListActivity.this).resume(entry);
} else {
DownloadManager.getInstance(ListActivity.this).add(entry);
}
}
});
holder.downloadBtn2.setOnClickListener(
new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent intent = new Intent();
intent.setClass(ListActivity.this, DetailsActivity.class);
Bundle bundle = new Bundle();
bundle.putSerializable("bean", entry);
intent.putExtras(bundle);
startActivity(intent);
}
});
return convertView;
}
