我使用自定义 Baseadapter 类显示了列表项。我的问题是，当我单击位置 1 的 listview 按钮时，也单击了位置 other 的按钮。但是我下载了完整的视频。但是 listview 显示不正确。我该如何克服这个问题？
这是我的代码：
public class TestHopeListNew extends Activity {
ListView lv;
ArrayList<Url_Dto> list = new ArrayList<Url_Dto>();
MyListAdapter adtf;
public static String prf_date_view = "";
String str_start;
Button all_detail;
Button accepted_all, mainDownloadBtn;
public static SQLiteDatabase db;
String name;
File download;
int i = 0;
private ArrayList<ProgressBarSeek> progreeSeekList;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_test_hope_list_new);
progreeSeekList = new ArrayList<ProgressBarSeek>();
list = DBAdapter.getUrl_Detail();
Log.v("log_tag", "list :: " + list.size());
lv = (ListView) findViewById(R.id.main_list_meet);
mainDownloadBtn = (Button) findViewById(R.id.not_shown);
adtf = new MyListAdapter(this);
lv.setAdapter(adtf);
adtf.notifyDataSetChanged();
SqliteAdpter dba = SqliteAdpter
.getAdapterInstance(getApplicationContext());
dba.createdatabase();
db = dba.openDataBase();
mainDownloadBtn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
adtf.setAllDownload();
}
});
}
public class MyListAdapter extends BaseAdapter {
private LayoutInflater mInflater;
ProgressBar pr;
ProgressBar[] prArray = new ProgressBar[list.size()];
Button cl, dl;
ImageView im;
DownloadFileFromURL downloadFileFromURL;
ViewHolder holder = null;
public MyListAdapter(Context context) {
mInflater = LayoutInflater.from(context);
}
public int getCount() {
return list.size();
}
public Object getItem(int position) {
return position;
}
public long getItemId(int position) {
return position;
}
public void setAllDownload() {
if (prArray.length > 0) {
for (int i = 0; i < prArray.length; i++) {
try {
Thread.sleep(5000);
} catch (InterruptedException e) {
e.printStackTrace();
}
Log.v("log_tag", "list.get(i).url_video "
+ list.get(i).url_video);
downloadFileFromURL = new DownloadFileFromURL(dl, cl);
downloadFileFromURL.execute(pr, list.get(i).url_video, i);
}
}
}
private class ViewHolder {
public Button cl;
public Button dl;
public ProgressBar pr;
public ImageView im;
};
public View getView(final int position, View convertView,
ViewGroup parent) {
/*convertView = mInflater.inflate(R.layout.custome_list_view, null);
cl = (Button) convertView.findViewById(R.id.cancle_sedual);
dl = (Button) convertView.findViewById(R.id.download_sedual);
pr = (ProgressBar) convertView.findViewById(R.id.listprogressbar);
prArray[position] = pr;
im = (ImageView) convertView.findViewById(R.id.list_image);
im.setImageResource(list.get(position).images[position]);*/
//final ViewHolder holder = null;
if (convertView == null) {
LayoutInflater mInflater = (LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE);
convertView = mInflater.inflate(R.layout.custome_list_view,
null);
holder = new ViewHolder();
prArray[position] = pr;
holder.cl = (Button) convertView
.findViewById(R.id.cancle_sedual);
holder.dl = (Button) convertView
.findViewById(R.id.download_sedual);
holder.pr = (ProgressBar) convertView
.findViewById(R.id.listprogressbar);
holder.im = (ImageView) convertView
.findViewById(R.id.list_image);
convertView.setTag(holder);
} else {
holder = (ViewHolder) convertView.getTag();
}
holder.im.setImageResource(list.get(position).images[position]);
// pr.setProgress(getItem(position));
holder.cl.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Log.v("log_tag", "Cancle Button Click");
holder.dl.setVisibility(View.VISIBLE);
holder.cl.setVisibility(View.GONE);
//downloadFileFromURL = new DownloadFileFromURL(dl, cl);
downloadFileFromURL.cancel(true);
downloadFileFromURL.downloadFile();
holder.pr.setProgress(0);
notifyDataSetChanged();
}
});
holder.dl.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
holder.dl.setFocusable(false);
str_start = list.get(position).url_video;
holder.dl.setVisibility(View.GONE);
holder.cl.setVisibility(View.VISIBLE);
Log.v("log_tag", "Start Button Click ");
// new DownloadFileFromURL().execute(str_start);
downloadFileFromURL = new DownloadFileFromURL(holder.dl, holder.cl);
downloadFileFromURL.execute(holder.pr, str_start, position);
notifyDataSetChanged();
}
});
getProgress(holder.pr, position, holder.dl, holder.cl);
// convertView.setTag(holder);
return convertView;
}
}
class DownloadFileFromURL extends AsyncTask<Object, String, Integer> {
int count = 0;
ProgressDialog dialog;
ProgressBar progressBar;
int myProgress;
int position;
Button start, cancel;
boolean download1 = false;
public DownloadFileFromURL(Button start, Button cancel) {
this.start = start;
this.cancel = cancel;
}
/**
* Before starting background thread Show Progress Bar Dialog
* */
@Override
protected void onPreExecute() {
super.onPreExecute();
ProgressBar progressBar;
download1 = true;
}
public void downloadFile() {
this.download1 = false;
}
@Override
protected void onCancelled() {
super.onCancelled();
}
/**
* Downloading file in background thread
* */
@Override
protected Integer doInBackground(Object... params) {
int count;
progressBar = (ProgressBar) params[0];
position = (Integer) params[2];
try {
URL url = new URL((String) params[1]);
name = ((String) params[1]).substring(((String) params[1])
.lastIndexOf("/") + 1);
// Log.v("log_tag", "name Substring ::: " + name);
URLConnection conection = url.openConnection();
conection.setConnectTimeout(2000);
conection.connect();
// getting file length
int lenghtOfFile = conection.getContentLength();
// input stream to read file - with 8k buffer
InputStream input = new BufferedInputStream(url.openStream(),
8192);
download = new File(Environment.getExternalStorageDirectory()
+ "/download/");
if (!download.exists()) {
download.mkdir();
}
String strDownloaDuRL = download + "/" + name;
Log.v("log_tag", " down url " + strDownloaDuRL);
FileOutputStream output = new FileOutputStream(strDownloaDuRL);
byte data[] = new byte[1024];
long total = 0;
while ((count = input.read(data)) != -1) {
if (this.download1) {
if(isCancelled()){
break;
}
total += count;
// writing data to file
progressBar
.setProgress((int) ((total * 100) / lenghtOfFile));
output.write(data, 0, count);
setProgress(progressBar, position, start, cancel, this);
} else {
File delete = new File(strDownloaDuRL);
delete.delete();
}
}
// flushing output
output.flush();
// closing streams
output.close();
input.close();
} catch (Exception e) {
Log.e("Error: ", e.getMessage());
}
return 0;
}
/**
* Updating progress bar
* */
protected void onProgressUpdate(String... values) {
super.onProgressUpdate(values);
// Log.v("log_tag", "progress :: " + values);
// setting progress percentage
// pDialog.setProgress(Integer.parseInt(progress[0]));
}
/**
* After completing background task Dismiss the progress dialog
* **/
protected void onPostExecute(String file_url) {
Log.v("log", "login ::: 4::: " + download);
String videoPath = download + "/" + name;
String chpName = name;
Log.v("log_tag", "chpName ::::" + chpName + " videoPath "
+ videoPath);
db.execSQL("insert into videoStatus (chapterNo,videoPath) values(\""
+ chpName + "\",\"" + videoPath + "\" )");
}
}
private void setProgress(final ProgressBar pr, final int position,
final Button Start, final Button cancel,
final DownloadFileFromURL downloadFileFromURL) {
ProgressBarSeek pbarSeek = new ProgressBarSeek();
pbarSeek.setPosition(position);
pbarSeek.setProgressValue(pr.getProgress());
// Log.v("log_tag", position + " progress " + pr.getProgress());
progreeSeekList.add(pbarSeek);
cancel.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
Log.v("log_tag", "Cancle Button Click Set progress");
Start.setVisibility(View.VISIBLE);
cancel.setVisibility(View.GONE);
downloadFileFromURL.cancel(true);
downloadFileFromURL.downloadFile();
pr.setProgress(0);
}
});
Start.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
Log.v("log_tag", "Start Button Click set Progress");
str_start = list.get(position).url_video;
Start.setVisibility(View.GONE);
cancel.setVisibility(View.VISIBLE);
Log.v("log_tag", "str_start " + str_start);
//
// new DownloadFileFromURL().execute(str_start);
DownloadFileFromURL downloadFileFromU = new DownloadFileFromURL(
Start, cancel);
downloadFileFromU.execute(pr, str_start, position);
}
});
}
private void getProgress(ProgressBar pr, int position, Button dl, Button cl) {
if (progreeSeekList.size() > 0) {
for (int j = 0; j < progreeSeekList.size(); j++) {
if (position == progreeSeekList.get(j).getPosition()) {
pr.setProgress(progreeSeekList.get(j).getProgressValue());
dl.setVisibility(View.GONE);
cl.setVisibility(View.VISIBLE);
}
}
}
}
}
我单击第二个按钮但显示其他按钮 clickeble 但第二个按钮背景下载在 sd 卡中但显示不正确。如何解决它以及我的代码有什么问题，请帮助我！！！