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Donc, je suis un débutant sur Android, et après avoir lu un tutoriel sur ExpandableList en ligne, j'ai fait une liste FAQ dans mon application.Android - possible d'insérer un parent unique et des éléments enfants uniques à ExpandableList en utilisant le tableau xml?
Cependant, je voudrais savoir s'il est possible d'ajouter des éléments parents uniques et uniques à ExpandableList en lisant xml array? Par exemple, avec un tableau de questions et tableau de réponse dans le fichier XML, et la réponse apparaîtra dans le même ordre de liste de questions, comme ceci:
<string-array name="faq_question">
<item>Q1</item>
<item>Q2</item>
...
</string-array>
<string-array name="faq_answer">
<item>A1</item>
<item>A2</item>
...
</string-array>Actuellement, je dois mettre la réponse chaîne à leur question comme manuellement ce respectif:
ExpandableListDataPump.java
public class ExpandableListDataPump extends AppCompatActivity {
public static HashMap<String, List<String>> getData() {
HashMap<String, List<String>> expandableListDetail = new HashMap<String, List<String>>();
String q1 = MainActivity.getContext().getResources().getString(R.string.faq_q1);
String q2 = MainActivity.getContext().getResources().getString(R.string.faq_q2);
String q3 = MainActivity.getContext().getResources().getString(R.string.faq_q3);
String a1 = MainActivity.getContext().getResources().getString(R.string.faq_a1);
String a2 = MainActivity.getContext().getResources().getString(R.string.faq_a2);
String a3 = MainActivity.getContext().getResources().getString(R.string.faq_a3);
List<String> qt3 = new ArrayList<String>();
qt3.add(a3);
List<String> qt2 = new ArrayList<String>();
qt2.add(a2);
List<String> qt1 = new ArrayList<String>();
qt1.add(a1);
expandableListDetail.put(q1, qt1);
expandableListDetail.put(q2, qt2);
expandableListDetail.put(q3, qt3);
return expandableListDetail;
}
}L'adaptateur - ExpandableListAdapter.java
public class ExpandableListAdapter extends AnimatedExpandableListView.AnimatedExpandableListAdapter {
private Context context;
private List<String> expandableListTitle;
private HashMap<String, List<String>> expandableListDetail;
public ExpandableListAdapter(Context context, List<String> expandableListTitle, HashMap<String, List<String>> expandableListDetail) {
this.context = context;
this.expandableListTitle = expandableListTitle;
this.expandableListDetail = expandableListDetail;
}
@Override
public Object getChild(int listPosition, int expandedListPosition) {
return this.expandableListDetail.get(this.expandableListTitle.get(listPosition))
.get(expandedListPosition);
}
@Override
public long getChildId(int listPosition, int expandedListPosition) {
return expandedListPosition;
}
@Override
public View getRealChildView(int listPosition, int expandedListPosition, boolean isLastChild, View convertView, ViewGroup parent) {
final String expandedListText = (String) getChild(listPosition, expandedListPosition);
if (convertView == null) {
LayoutInflater layoutInflater = (LayoutInflater) this.context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
convertView = layoutInflater.inflate(R.layout.activity_help_faq_content, null);
}
TextView expandedListTextView = (TextView) convertView
.findViewById(R.id.child_list);
expandedListTextView.setText(expandedListText);
return convertView;
}
@Override
public int getRealChildrenCount(int listPosition) {
return this.expandableListDetail.get(this.expandableListTitle.get(listPosition))
.size();
}
@Override
public Object getGroup(int listPosition) {
return this.expandableListTitle.get(listPosition);
}
@Override
public int getGroupCount() {
return this.expandableListTitle.size();
}
@Override
public long getGroupId(int listPosition) {
return listPosition;
}
@Override
public View getGroupView(int listPosition, boolean isExpanded, View convertView, ViewGroup parent) {
String listTitle = (String) getGroup(listPosition);
if (convertView == null) {
LayoutInflater layoutInflater = (LayoutInflater) this.context.
getSystemService(Context.LAYOUT_INFLATER_SERVICE);
convertView = layoutInflater.inflate(R.layout.activity_help_faq_title, null);
}
TextView listTitleTextView = (TextView) convertView
.findViewById(R.id.header_list);
listTitleTextView.setText(listTitle);
ViewFlipper flip = (ViewFlipper) convertView.findViewById(R.id.arrow_flipper);
if (isExpanded) {
flip.setDisplayedChild(1);
} else {
flip.setDisplayedChild(0);
}
return convertView;
}
@Override
public boolean hasStableIds() {
return false;
}
@Override
public boolean isChildSelectable(int listPosition, int expandedListPosition) {
return false;
}
}L'activité - HelpFaqActivity.java
public class HelpFaqActivity extends AppCompatActivity {
AnimatedExpandableListView expandableListView;
ExpandableListAdapter expandableListAdapter;
List<String> expandableListTitle;
HashMap<String, List<String>> expandableListDetail;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_help_faq);
setTitle(R.string.help_faq);
ActionBar actionBar = getSupportActionBar();
actionBar.setDisplayHomeAsUpEnabled(true);
expandableListView = (AnimatedExpandableListView) findViewById(R.id.lvExp);
expandableListDetail = ExpandableListDataPump.getData();
expandableListTitle = new ArrayList<String>(expandableListDetail.keySet());
expandableListAdapter = new ExpandableListAdapter(this, expandableListTitle, expandableListDetail);
expandableListView.setAdapter(expandableListAdapter);
expandableListView.setOnGroupClickListener(new ExpandableListView.OnGroupClickListener() {
@Override
public boolean onGroupClick(ExpandableListView parent, View v, int groupPosition, long id) {
if (expandableListView.isGroupExpanded(groupPosition)) {
expandableListView.collapseGroupWithAnimation(groupPosition);
Log.d("MainActivity", "Collapsing");
} else {
expandableListView.expandGroupWithAnimation(groupPosition);
Log.d("MainActivity", "Expanding");
}
return true;
}
});
expandableListView.setOnGroupExpandListener(new ExpandableListView.OnGroupExpandListener() {
@Override
public void onGroupExpand(int groupPosition) {
}
});
expandableListView.setOnGroupCollapseListener(new ExpandableListView.OnGroupCollapseListener() {
@Override
public void onGroupCollapse(int groupPosition) {
}
});
expandableListView.setOnChildClickListener(new ExpandableListView.OnChildClickListener() {
@Override
public boolean onChildClick(ExpandableListView parent, View v, int groupPosition, int childPosition, long id) {
return false;
}
});
}
}S'il vous plaît laissez-moi savoir s'il y a des moyens de mettre en œuvre cela, ou de meilleurs moyens de faire le même résultat. Merci.