我有四个活动类，我需要为四个活动实现四种不同的颜色，我有一个ExpandableListAdapter，如：
public class ExpandableListAdapter extends BaseExpandableListAdapter {
private Context _context;
private List<String> _listDataHeader; // header titles
// child data in format of header title, child title
private HashMap<String, List<String>> _listDataChild;
String colors;
public ExpandableListAdapter(Context context, List<String> listDataHeader,
HashMap<String, List<String>> listChildData,String color) {
this._context = context;
this._listDataHeader = listDataHeader;
this._listDataChild = listChildData;
this.colors=color;
}
@Override
public Object getChild(int groupPosition, int childPosititon) {
return this._listDataChild.get(this._listDataHeader.get(groupPosition))
.get(childPosititon);
}
@Override
public long getChildId(int groupPosition, int childPosition) {
return childPosition;
}
@Override
public View getChildView(int groupPosition, final int childPosition,
boolean isLastChild, View convertView, ViewGroup parent) {
final String childText = (String) getChild(groupPosition, childPosition);
if (convertView == null) {
LayoutInflater infalInflater = (LayoutInflater) this._context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
convertView = infalInflater.inflate(R.layout.list_item, null);
}
CheckedTextView txtListChild = (CheckedTextView) convertView
.findViewById(R.id.lblListItem);
txtListChild.setTypeface(TypeFaceConstant.getGibsonregular(_context));
txtListChild.setText(childText);
return convertView;
}
@Override
public int getChildrenCount(int groupPosition) {
if(groupPosition==2){
return this._listDataChild.get(this._listDataHeader.get(groupPosition))
.size();
}else
return 0;
}
@Override
public Object getGroup(int groupPosition) {
return this._listDataHeader.get(groupPosition);
}
@Override
public int getGroupCount() {
return this._listDataHeader.size();
}
@Override
public long getGroupId(int groupPosition) {
return groupPosition;
}
@Override
public View getGroupView(int groupPosition, boolean isExpanded,
View convertView, ViewGroup parent) {
String headerTitle = (String) getGroup(groupPosition);
if (convertView == null) {
LayoutInflater infalInflater = (LayoutInflater) this._context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
convertView = infalInflater.inflate(R.layout.list_group, null);
}
CheckedTextView lblListHeader = (CheckedTextView) convertView
.findViewById(R.id.lblListHeader);
lblListHeader.setTypeface(TypeFaceConstant.getGibsonregular(_context));
lblListHeader.setText(headerTitle);
return convertView;
}
@Override
public boolean hasStableIds() {
return false;
}
@Override
public boolean isChildSelectable(int groupPosition, int childPosition) {
return true;
}
我的活动课就像：
public class OfficeScreenActivity extends FragmentActivity implements OnClickListener {
LinearLayout office,roaster,food_service,hospitality;
ExpandableListAdapter listAdapter;
ExpandableListView expListView;
List<String> listDataHeader;
TextView lblListHeader,office_text;
ImageView play,logo,office_image;
LinearLayout ln;
Context context;
Bundle bundle;
ArrayList<Content> al;
HashMap<String, List<String>> listDataChild;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_office_screen);
play=(ImageView) findViewById(R.id.play_button);
logo=(ImageView) findViewById(R.id.logo_button);
roaster=(LinearLayout) findViewById(R.id.roaster_lay);
food_service=(LinearLayout) findViewById(R.id.food_lay);
hospitality=(LinearLayout) findViewById(R.id.hosp_lay);
office_image=(ImageView) findViewById(R.id.office_image);
office_image.setImageResource(R.drawable.office_color);
office_text=(TextView) findViewById(R.id.office_text);
office_text.setTextColor(Color.parseColor("#57B7B2"));
roaster.setOnClickListener(this);
food_service.setOnClickListener(this);
hospitality.setOnClickListener(this);
play.setOnClickListener(this);
logo.setOnClickListener(this);
FragmentManager fm;
IntroductionFragment fragment = new IntroductionFragment();
Bundle bundle = new Bundle();
String str=" office coffiee that will \n have everyone talking.";
String str1="SOLA";
String str2=" BEV OFFICE COFFEE SYSTEM SOLUTIONS";
final String colors="#57B7B2";
//bundle.putString("office",str);
bundle.putString("sola", str1);
bundle.putString("bev", str2);
bundle.putString("office",str);
bundle.putString("color", colors);
fragment.setArguments(bundle);
fm=getSupportFragmentManager();
fm.beginTransaction().replace(R.id.frame1, fragment, "NewFragmentTag").commit();
// get the listview
expListView = (ExpandableListView) findViewById(R.id.lvExp);
// preparing list data
prepareListData();
listAdapter = new ExpandableListAdapter(this, listDataHeader, listDataChild,colors);
// setting list adapter
expListView.setAdapter(listAdapter);
// Listview Group click listener
//expListView.setBackgroundColor(Color.parseColor("#57B7B2"));
expListView.setOnGroupClickListener(new OnGroupClickListener() {
CheckedTextView lastClickedView;
@Override
public boolean onGroupClick(ExpandableListView parent, View v,
int groupPosition, long id) {
if(groupPosition==0){
FragmentManager fm;
IntroductionFragment fragment = new IntroductionFragment();
Bundle bundle = new Bundle();
String str=" office coffiee that will \n have everyone talking.";
String str1="SOLA";
String colors="#57B7B2";
String str2=" BEV OFFICE COFFEE SYSTEM SOLUTIONS";
bundle.putString("office",str);
bundle.putString("sola", str1);
bundle.putString("bev", str2);
bundle.putString("color", colors);
fragment.setArguments(bundle);
fm=getSupportFragmentManager();
fm.beginTransaction().replace(R.id.frame1, fragment, "NewFragmentTag").commit();
}
else if(groupPosition==1){
FragmentManager fm;
KeyPointsFragment fragment = new KeyPointsFragment();
Bundle bundle = new Bundle();
String token="office";
bundle.putString("office", token);
fragment.setArguments(bundle);
fm=getSupportFragmentManager();
fm.beginTransaction().replace(R.id.frame1, fragment, "NewFragmentTag").commit();
}
else if(groupPosition==3){
FragmentManager fm;
PresentationsFragment fragment = new PresentationsFragment();
Bundle bundle = new Bundle();
String str="PRESENTATIONS";
//String str1="SOLA";
String colors="#57B7B2";
//String str2=" BEV OFFICE COFFEE SYSTEM SOLUTIONS";
bundle.putString("present_title",str);
bundle.putString("cate_id", "1");
//bundle.putString("sola", str1);
//bundle.putString("bev", str2);
bundle.putString("color", colors);
fragment.setArguments(bundle);
fm=getSupportFragmentManager();
fm.beginTransaction().replace(R.id.frame1, fragment, "NewFragmentTag").commit();
}
if(null!=lastClickedView){
lastClickedView.setBackgroundColor(Color.parseColor("#232323"));
}
CheckedTextView txt3=(CheckedTextView) v.findViewById(R.id.lblListHeader);
if(!(groupPosition==2)){
txt3.setBackgroundColor(Color.parseColor("#57B7B2"));
//txt3.setTypeface(TypeFaceConstant.getGibsonBold(getApplicationContext()));
lastClickedView=txt3;
}
if(groupPosition==2){
lblListHeader = (TextView) v
.findViewById(R.id.lblListHeader);
lblListHeader.setTextColor(Color.parseColor("#B0AFAF"));
}
return false;
}
});
// Listview Group expanded listener
expListView.setOnGroupExpandListener(new OnGroupExpandListener() {
@Override
public void onGroupExpand(int groupPosition) {
Toast.makeText(getApplicationContext(),
listDataHeader.get(groupPosition) + " Expanded",
Toast.LENGTH_SHORT).show();
}
});
// Listview Group collasped listener
expListView.setOnGroupCollapseListener(new OnGroupCollapseListener() {
@Override
public void onGroupCollapse(int groupPosition) {
if(groupPosition==2){
lblListHeader.setTextColor(Color.parseColor("#FFFFFF"));
}
Toast.makeText(getApplicationContext(),
listDataHeader.get(groupPosition) + " Collapsed",
Toast.LENGTH_SHORT).show();
}
});
// Listview on child click listener
expListView.setOnChildClickListener(new OnChildClickListener() {
CheckedTextView lastClickedView;
@Override
public boolean onChildClick(ExpandableListView parent, View v,
int groupPosition, int childPosition, long id) {
// TODO Auto-generated method stub
if(childPosition==0){
Intent mInHome1112 = new Intent(OfficeScreenActivity.this,BrewersActivity.class);
mInHome1112.putExtra("cate_id", "1");
OfficeScreenActivity.this.startActivity(mInHome1112);
}
else if(childPosition==1){
Intent mInHome1112 = new Intent(OfficeScreenActivity.this,CapsulesActivity.class);
mInHome1112.putExtra("cate_id", "1");
mInHome1112.putExtra("Avtivity", "Office");
OfficeScreenActivity.this.startActivity(mInHome1112);
}
if(null!=lastClickedView){
lastClickedView.setBackgroundColor(Color.parseColor("#232323"));
}
CheckedTextView txt1=(CheckedTextView) v.findViewById(R.id.lblListItem);
txt1.setBackgroundColor(Color.parseColor("#57B7B2"));
lastClickedView=txt1;
Toast.makeText(
getApplicationContext(),
listDataHeader.get(groupPosition)
+ " : "
+ listDataChild.get(
listDataHeader.get(groupPosition)).get(
childPosition), Toast.LENGTH_SHORT)
.show();
return false;
}
});
}
这是活动类之一，我有四个这样的活动类，请帮助我。
答案 0 :(得分：0)
您在ExpandableListAdapter的构造函数中传递颜色String但从未使用它。 如果要设置第一个组项的颜色，则需要从ExpandableListAdapter的getGroupView（）方法设置它： 像这样：
if(groupPosition==0){
lblListHeader.setTextColor(<color passing in constructor>);
}