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Je veux qu'un seul enfant soit normal et que les autres enfants soient transparents. Certains groupes qui ne sont pas extensibles peuvent également être transparents alors que les groupes extensibles doivent être totalement opaques. Le remplissage des vues fonctionne parfaitement, mais le réglage alpha ne fonctionne pas. Dans la première fois, tous les éléments sont 100% opaques, quand j'élargis un groupe, alors chaque élément définit son alpha exactement comme je veux.ExpandableListView setAlpha ne fonctionne pas dans la première fois
Il doit être travail dans la première fois.
Mon BaseExpandableListAdapter est quelque chose comme ceci:
@Override
public View getGroupView(int groupPosition, boolean isExpanded, View convertView, ViewGroup parent) {
ImageView imgContentListThumbnail;
ImageView imgContentListRibbon;
ImageView imgTLIcon;
ImageView imgKilitIcon;
TextView txtContentListTitle;
TextView txtContentListDescription;
ImageView imgContentListDetail;
RelativeLayout rlThumbnail;
ImageView imgPreview;
RelativeLayout rlContentListRoot;
if (convertView == null) {
LayoutInflater infalInflater = (LayoutInflater) activity.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
convertView = infalInflater.inflate(R.layout.item_contentlist, parent, false);
imgContentListThumbnail = (ImageView) convertView.findViewById(R.id.imgContentListThumbnail);
imgContentListRibbon = (ImageView) convertView.findViewById(R.id.imgContentListRibbon);
imgTLIcon = (ImageView) convertView.findViewById(R.id.imgTLIcon);
imgKilitIcon = (ImageView) convertView.findViewById(R.id.imgKilitIcon);
txtContentListTitle = (TextView) convertView.findViewById(R.id.txtContentListTitle);
Fonts.setTypeface(Fonts.BOLD, txtContentListTitle, activity.getBaseContext());
txtContentListDescription = (TextView) convertView.findViewById(R.id.txtContentListDescription);
imgContentListDetail = (ImageView) convertView.findViewById(R.id.imgContentListDetail);
rlThumbnail = (RelativeLayout) convertView.findViewById(R.id.rlThumbnail);
imgPreview = (ImageView) convertView.findViewById(R.id.imgOnizleme);
rlContentListRoot = (RelativeLayout) convertView.findViewById(R.id.rlContentListRoot);
convertView.setTag(new ViewHolder(imgContentListThumbnail, imgContentListRibbon, imgTLIcon, imgKilitIcon, txtContentListTitle, txtContentListDescription, imgContentListDetail, rlThumbnail,imgPreview, rlContentListRoot));
} else {
ViewHolder viewHolder = (ViewHolder) convertView.getTag();
imgContentListThumbnail = viewHolder.imgContentListThumbnail;
imgContentListRibbon = viewHolder.imgContentListRibbon;
imgTLIcon = viewHolder.imgTLIcon;
imgKilitIcon = viewHolder.imgKilitIcon;
txtContentListTitle = viewHolder.txtContentListTitle;
txtContentListDescription = viewHolder.txtContentListDescription;
imgContentListDetail = viewHolder.imgContentListDetail;
rlThumbnail = viewHolder.rlThumbnail;
imgPreview = viewHolder.imgPreview;
rlContentListRoot = viewHolder.rlContentListRoot;
}
final NativeProgramSet nativeProgramSet = (NativeProgramSet) getGroup(groupPosition);
Course course = null;
for(Course item : programOnly.getProgramSummary().getCourseList()) {
if(item.getId().equals(nativeProgramSet.getCourseIdList().get(0))) {
course = item;
break;
}
}
//DECIDING THE ITEM TO BE TRANSPARENT
convertView.setBackgroundColor(Color.parseColor("#F6F6F6"));
if(nativeProgramSet.getId() != null) { //THIS IS EXPANDABLE, AND MUST BE 100% OPAQUE
rlThumbnail.setVisibility(View.GONE);
imgContentListThumbnail.setVisibility(View.GONE);
imgContentListRibbon.setVisibility(View.GONE);
imgTLIcon.setVisibility(View.GONE);
imgKilitIcon.setVisibility(View.GONE);
txtContentListDescription.setText(getGroupDetailContentNumbers(nativeProgramSet, programOnly.getProgramSummary().getCourseList()));
if(isExpanded) {
imgContentListDetail.setImageResource(R.drawable.accordion_close_icon);
} else {
imgContentListDetail.setImageResource(R.drawable.accordion_open_icon);
}
txtContentListTitle.setText(nativeProgramSet.getName());
rlContentListRoot.setAlpha(1.0f);
} else { //THIS HAS NO CHILDREN, MAY BE TRANSPARENT
rlThumbnail.setVisibility(View.VISIBLE);
imgContentListThumbnail.setVisibility(View.VISIBLE);
txtContentListDescription.setVisibility(View.VISIBLE);
imgContentListDetail.setImageResource(R.drawable.top_search_filter_button_icon);
if(course != null) {
convertView = fillListItem(true, course, imgContentListThumbnail, imgContentListRibbon, imgTLIcon, imgKilitIcon, txtContentListTitle, txtContentListDescription, imgContentListDetail, imgPreview, convertView);
if(android.os.Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
final Course crs = ((NewProgramDetayActivity)activity).course;
if ((course.getId().equals(crs.getId())) && intro == null) { //THE ITEM IS SELECTED ONE, MUST BE 100% OPAQUE
rlContentListRoot.setAlpha(1.0f);
} else { //THE ITEM IS NO SELECTED ONE, MUST BE TRANSPARENT
rlContentListRoot.setAlpha(0.5f);
}
}
} else {
rlContentListRoot.setAlpha(1.0f);
}
}
return convertView;
}
@Override
public View getChildView(int groupPosition, int childPosition, boolean isLastChild, View convertView, ViewGroup parent) {
ImageView imgContentListThumbnail;
ImageView imgContentListRibbon;
ImageView imgTLIcon;
ImageView imgKilitIcon;
TextView txtContentListTitle;
TextView txtContentListDescription;
ImageView imgContentListDetail;
RelativeLayout rlThumbnail;
ImageView imgPreview;
RelativeLayout rlContentListRoot;
if (convertView == null) {
LayoutInflater infalInflater = (LayoutInflater) activity.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
convertView = infalInflater.inflate(R.layout.item_contentlist, parent, false);
imgContentListThumbnail = (ImageView) convertView.findViewById(R.id.imgContentListThumbnail);
imgContentListRibbon = (ImageView) convertView.findViewById(R.id.imgContentListRibbon);
imgTLIcon = (ImageView) convertView.findViewById(R.id.imgTLIcon);
imgKilitIcon = (ImageView) convertView.findViewById(R.id.imgKilitIcon);
txtContentListTitle = (TextView) convertView.findViewById(R.id.txtContentListTitle);
Fonts.setTypeface(Fonts.BOLD, txtContentListTitle, activity.getBaseContext());
txtContentListDescription = (TextView) convertView.findViewById(R.id.txtContentListDescription);
imgContentListDetail = (ImageView) convertView.findViewById(R.id.imgContentListDetail);
rlThumbnail = (RelativeLayout) convertView.findViewById(R.id.rlThumbnail);
imgPreview = (ImageView) convertView.findViewById(R.id.imgOnizleme);
rlContentListRoot = (RelativeLayout) convertView.findViewById(R.id.rlContentListRoot);
convertView.setTag(new ViewHolder(imgContentListThumbnail, imgContentListRibbon, imgTLIcon, imgKilitIcon, txtContentListTitle, txtContentListDescription, imgContentListDetail, rlThumbnail, imgPreview, rlContentListRoot));
} else {
ViewHolder viewHolder = (ViewHolder) convertView.getTag();
imgContentListThumbnail = viewHolder.imgContentListThumbnail;
imgContentListRibbon = viewHolder.imgContentListRibbon;
imgTLIcon = viewHolder.imgTLIcon;
imgKilitIcon = viewHolder.imgKilitIcon;
txtContentListTitle = viewHolder.txtContentListTitle;
txtContentListDescription = viewHolder.txtContentListDescription;
imgContentListDetail = viewHolder.imgContentListDetail;
rlThumbnail = viewHolder.rlThumbnail;
imgPreview = viewHolder.imgPreview;
rlContentListRoot = viewHolder.rlContentListRoot;
}
convertView.setBackgroundColor(Color.WHITE);
Long courseId = (Long) getChild(groupPosition, childPosition);
rlThumbnail.setVisibility(View.VISIBLE);
imgContentListThumbnail.setVisibility(View.VISIBLE);
txtContentListDescription.setVisibility(View.VISIBLE);
imgContentListDetail.setImageResource(R.drawable.top_search_filter_button_icon);
Course course = null;
for(Course item : programOnly.getProgramSummary().getCourseList()) {
if(item.getId().equals(courseId)) {
course = item;
break;
}
}
// DECIDING THE ITEM TO BE TRANSPARENT
if(course != null) {
convertView = fillListItem(false, course, imgContentListThumbnail, imgContentListRibbon, imgTLIcon, imgKilitIcon, txtContentListTitle, txtContentListDescription, imgContentListDetail, imgPreview, convertView);
if(android.os.Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
final Course crs = ((NewProgramDetayActivity)activity).course;
if ((course.getId().equals(crs.getId())) && intro == null) { //THE ITEM IS SELECTED ONE, MUST BE 100% OPAQUE
rlContentListRoot.setAlpha(1.0f);
} else { //THE ITEM IS NOT SELECTED ONE, MUST BE TRANSPARENT
rlContentListRoot.setAlpha(0.5f);
}
}
} else {
rlContentListRoot.setAlpha(0.5f);
}
return convertView;
}
Groupes et les enfants utilisent la même ViewHolder comme ci-dessous:
private static class ViewHolder {
public final ImageView imgContentListThumbnail;
public final ImageView imgContentListRibbon;
public final ImageView imgTLIcon;
public final ImageView imgKilitIcon;
public final TextView txtContentListTitle;
public final TextView txtContentListDescription;
public final ImageView imgContentListDetail;
public final RelativeLayout rlThumbnail;
public final ImageView imgPreview;
public final RelativeLayout rlContentListRoot;
public ViewHolder(ImageView imgContentListThumbnail, ImageView imgContentListRibbon, ImageView imgTLIcon, ImageView imgKilitIcon, TextView txtContentListTitle, TextView txtContentListDescription, ImageView imgContentListDetail, RelativeLayout rlThumbnail, ImageView imgPreview, RelativeLayout rlContentListRoot) {
this.imgContentListThumbnail = imgContentListThumbnail;
this.imgContentListRibbon = imgContentListRibbon;
this.imgTLIcon = imgTLIcon;
this.imgKilitIcon = imgKilitIcon;
this.txtContentListTitle = txtContentListTitle;
this.txtContentListDescription = txtContentListDescription;
this.imgContentListDetail = imgContentListDetail;
this.rlThumbnail = rlThumbnail;
this.imgPreview = imgPreview;
this.rlContentListRoot = rlContentListRoot;
}
}
Je sais que le code est vraiment compliqué, mais il doit y avoir quelque chose qui me manque . Si vous pouvez voir, nous pouvons réussir à définir correctement alpha dans la première fois de l'apparence de la vue. rlContentListRoot est l'élément racine de viewHolder.
Merci pour vos conseils