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मैंने एक ग्रिडव्यू बनाया है, जो सर्वर से वीडियो दिखाता है। ग्रिडइटम में वीडियो अंगूठे की छवि और वीडियो अवधि है। वीडियो के अंगूठे को लोड करने के लिए मैं यूनिवर्सल इमेजलोडर का उपयोग कर रहा हूं और एसिंकैक्ट का उपयोग करके आलसी लोडिंग बनाकर वीडियो अवधि लोड कर रहा हूं। लाज़ीलोडिंग ठीक काम करती है। लेकिन अगर कोई ग्रिडव्यू को अक्सर स्क्रॉल करता है, तो वीडियो अवधि गलत स्थिति में दिखाई देती है। मैं अनुसरण कर रहा हूं Lazyloading बनाने के लिए bellow linkटेक्स्टव्यू Lazyloading, ग्रिडव्यू में गलत स्थिति पर setText?
@Override
public View getView(int position, View convertView, ViewGroup parent) {
final TextView durationTextView;
View view = null;
if (convertView == null) {
view = mInflater.inflate(R.layout.camera_roll_item, parent, false);
MediaItemViewHolder mediaItemViewHolder = new MediaItemViewHolder();
mediaItemViewHolder.highlightTagIcon = (ImageView) view.findViewById(R.id.iv_media_grid_item_highlight_tag);
mediaItemViewHolder.mediaTypeIcon = (ImageView) view.findViewById(R.id.iv_media_grid_item_type);
mediaItemViewHolder.mediaClipLength = (TextView) view.findViewById(R.id.tv_media_grid_item_length);
mediaItemViewHolder.mediaThumbnail = (ImageView) view.findViewById(R.id.iv_media_grid_item_thumbnail);
mediaItemViewHolder.cameraItemSelectedView = (RelativeLayout) view.findViewById(R.id.rl_item_selection_parent);
mediaItemViewHolder.progressContainer = (RelativeLayout) view.findViewById(R.id.rl_grid_loader_parent);
view.setTag(mediaItemViewHolder);
} else {
view = convertView;//(MediaItemViewHolder) convertView.getTag();
//mediaItemViewHolder.mediaClipLength.setText("");
Log.i(TAG, "set blank to ");
}
MediaItemViewHolder mediaItemViewHolder = (MediaItemViewHolder) convertView.getTag();
durationTextView = mediaItemViewHolder.mediaClipLength;
if (position >= mCameraMediaItems.size()) {
Log.d(TAG, "Index out of Bound, position:" + position + " - mCameraMediaItems.size():" + mCameraMediaItems.size());
return convertView;
}
MediaItemBean mediaItemBean = CameraMediaController.getInstance().getMediaItemByPosition(position);
mediaItemViewHolder.mediaClipLength.setVisibility(View.VISIBLE);
mediaItemViewHolder.highlightTagIcon.setVisibility(View.GONE);
if (mediaItemBean != null && mediaItemBean.getCameraMedia() != null) {
switch (mediaItemBean.getCameraMedia().getType()) {
case AppConstant.MEDIA_TYPE_VIDEO:
mediaItemViewHolder.mediaTypeIcon.setImageResource(R.drawable.icn_thumb_vid);
//VideoInfoAsyncTask loads data in this list
int videoDuration = mediaItemBean.getVideoDuration();
//mediaItemViewHolder.mediaClipLength.setTag(CameraMediaUtil.convertSecondsTimeToMinutesString(videoDuration));
Log.i(TAG, "VideoDuration " + videoDuration);
String resId = mediaItemBean.getCreatedId()+"video_media_duration_com.gopro.buckhorn";
Log.i(TAG, "RESID "+resId);
downloadDuration(resId, durationTextView, mediaItemViewHolder.highlightTagIcon, mediaItemBean);
break;
case MULTI_PHOTO:
String mulCount = String.valueOf(Controller.getInstance().getPhotoCountAtPosition(position));
Log.i("MULTI_SHOT_SECTION", "MultiShot "+mulCount);
mediaItemViewHolder.mediaTypeIcon.setImageResource(R.drawable.icn_thumb_burst);
mediaItemViewHolder.mediaClipLength.setText(mulCount);
break;
}
//Load image into image view from URL
String imageUri = mediaItemBean.getThumbnailUri().toString();
Log.i(TAG, "Thumb url :" + imageUri);
mediaItemViewHolder.progressContainer.setVisibility(View.VISIBLE);
DownloadImageUtil.getLoadImageInsatnce().downloadGridImage(imageUri,
mediaItemViewHolder.mediaThumbnail, R.drawable.thumb_load, mediaItemViewHolder.progressContainer);
}
return convertView;
}
private void downloadDuration(String resId, TextView textView, ImageView highlightTagIcon, MediaItemBean mediaItemBean) {
String duration = getVideoDurationFromCache(String.valueOf(resId));
Log.i(TAG, "downloadDuration " + duration);
if (duration == null) {
loadVideoDuration(resId, textView, highlightTagIcon, mediaItemBean);
textView.setText("");
} else {
cancelVideoDurationDownloaderTask(resId, textView);
if(mediaItemBean.getCameraMedia().getType() == AppConstant.MEDIA_TYPE_VIDEO){
textView.setText(duration);
if (mediaItemBean.isIsHighLightTags()) {
highlightTagIcon.setVisibility(View.VISIBLE);
}
}
}
}
private String getVideoDurationFromCache(String key) {
// First try the hard reference cache
synchronized (mMemoryCache) {
final String duration = mMemoryCache.get(key);
if (duration != null) {
// Bitmap found in hard cache
// Move element to first position, so that it is removed last
mMemoryCache.remove(key);
mMemoryCache.put(key, duration);
return duration;
}
}
return null;
}
private static class MediaItemViewHolder {
ImageView highlightTagIcon, mediaTypeIcon, mediaThumbnail;
TextView mediaClipLength;
RelativeLayout cameraItemSelectedView;
/* ProgressBar innerProgressBar;
ProgressBar outerProgressBar;*/
RelativeLayout progressContainer;
}
public class VideoDurationDownloaderTask extends AsyncTask<String, Void, String> {
private final WeakReference<TextView> videoDurationReference;
private final WeakReference<ImageView> hiliteTagImageViewWeakReference;
private String data = "";
private MediaItemBean mediaItemBean;
public VideoDurationDownloaderTask(TextView textView, ImageView hiliteTagIcon, MediaItemBean mediaItemBean) {
this.mediaItemBean = mediaItemBean;
videoDurationReference = new WeakReference<>(textView);
hiliteTagImageViewWeakReference = new WeakReference<>(hiliteTagIcon);
}
@Override
protected String doInBackground(String... params) {
data = params[0];
Log.i(TAG, "data in task "+data);
return downloadVideoDuration(mediaItemBean);
}
@Override
protected void onPostExecute(String result) {
super.onPostExecute(result);
if (isCancelled()) {
Log.i(TAG, "isCancelled " + result);
result = "";
}
addDurationToMemoryCache(data, result);
//noinspection ConstantConditions
if (videoDurationReference != null) {
TextView videoDuration = videoDurationReference.get();
Log.i(TAG, "videoDuration " + videoDuration);
VideoDurationDownloaderTask videoDurationDownloaderTask =
getTextViewDerationWorkerTask(videoDuration);
Log.i(TAG, "videoDurationDownloaderTask " + videoDurationDownloaderTask);
if (videoDuration != null) {
if (this == videoDurationDownloaderTask) {
if(mediaItemBean.getCameraMedia().getType() == AppConstant.MEDIA_TYPE_VIDEO) {
Log.i(TAG, "TAG VAL "+videoDuration.getTag());
videoDuration.setText(result);
videoDuration.setTag(new TextView(context));
if (mediaItemBean.isIsHighLightTags()) {
ImageView highlightTagIcon = hiliteTagImageViewWeakReference.get();
if (highlightTagIcon != null)
highlightTagIcon.setVisibility(View.VISIBLE);
}
}
}
}
}
}
}
private String downloadVideoDuration(MediaItemBean mediaItemBean) {
try {
if (media != null && mediaItemBean.getMedia() != null) {
int videoDuration = mediaItemBean.getVideoDuration();
Log.i(TAG, "Video has duration = " + videoDuration);
if (videoDuration == -1) {
CommandResult<Integer> duration =
media.getVideoDuration(mediaItemBean.getCameraMedia().getFilePath());
videoDuration = duration.getData();
mediaItemBean.setVideoDuration(videoDuration);
Log.i(TAG, "set Video Duration " + videoDuration);
}
return MediaUtil.convertSecondsTimeToMinutesString(videoDuration);
}
} catch (Exception e) {
Log.e(TAG, "Exception Occure while Getting video info:" + e.getMessage());
}
Log.i(TAG, "not fetch duration ");
return "";
}
public void loadVideoDuration(String resId, TextView textView, ImageView hiliteTagIcon, MediaItemBean mediaItemBean) {
if (cancelVideoDurationDownloaderTask(resId, textView)) {
final VideoDurationDownloaderTask task = new VideoDurationDownloaderTask(textView, hiliteTagIcon, mediaItemBean);
AsyncTextView asyncTextView = new AsyncTextView(context, task);
textView.setTag(asyncTextView);
task.execute(resId);
}
}
private boolean cancelVideoDurationDownloaderTask(String data, TextView textView) {
final VideoDurationDownloaderTask durationWorkerTask = getTextViewDerationWorkerTask(textView);
if (durationWorkerTask != null) {
final String textViewData = durationWorkerTask.data;
Log.i(TAG, textViewData + " textViewDataData, data " + data);
if (data != null && !textViewData.equalsIgnoreCase(data)) {
// Cancel previous task
Log.i(TAG, "Cancel previous task " + data);
durationWorkerTask.cancel(true);
} else {
// The same work is already in progress
Log.i(TAG, "same work is already in progress " + false);
return false;
}
}
// No task associated with the ImageView, or an existing task was
// cancelled
Log.i(TAG, "cancelVideoDurationDownloaderTask true");
return true;
}
static class AsyncTextView extends TextView {
private final WeakReference<VideoDurationDownloaderTask> textviewWorkerTaskReference;
public AsyncTextView(Context context, VideoDurationDownloaderTask textviewWorkerTask) {
super(context);
textviewWorkerTaskReference = new WeakReference<>(textviewWorkerTask);
}
public VideoDurationDownloaderTask getTextViewWorkerTask() {
return textviewWorkerTaskReference.get();
}
}
private static VideoDurationDownloaderTask getTextViewDerationWorkerTask(TextView textView) {
if(textView.getTag() != null){
Log.i(TAG, " textView.getTag() " + textView.getTag());
if (textView.getTag() instanceof AsyncTextView) {
Log.i(TAG, " Return Textview task");
final AsyncTextView asyncTextView = (AsyncTextView) textView.getTag();
return asyncTextView.getTextViewWorkerTask();
}
}
return null;
}
public void addDurationToMemoryCache(String key, String duration) {
if (getBitmapFromMemCache(key) == null) {
mMemoryCache.put(key, duration);
}
}
ग्रिड व्यू प्रतिपादन के लिए कोड पोस्ट करें, डेटा बाध्यकारी और आलसी लोडिंग सामग्री? –
@AnuragSingh क्या आप कार्यान्वयन देख सकते हैं? –
नीचे दिए गए अनुसार नीचे दिए गए परिवर्तन करें। –