Android– 可扩展ListView如何在不影响其他人的情况下为组指示器设置动画

概述我有一个问题是动画组指标.它激励不同位置的所有其他组指标.我试图通过标签区分它而没有效果.我想要的只是动画我点击的组.publicViewgetGroupView(intgroupPosition,booleanisExpanded,ViewconvertView,ViewGroupparent){...if(isExpanded){O

我有一个问题是动画组指标.它激励不同位置的所有其他组指标.我试图通过标签区分它而没有效果.我想要的只是动画我点击的组.

public VIEw getGroupVIEw(int groupposition, boolean isExpanded,    VIEw convertVIEw, VIEwGroup parent) {   ...      if(isExpanded){        ObjectAnimator animator =   ObjectAnimator.offloat(containerIndicator,"rotation",0,180f);        animator.setDuration(400);        animator.start();        //arrowImage.setimageResource(R.drawable.ic_accordion_open);        headerTitle.setTextcolor(mContext.getResources().getcolor(R.color.euronics_blue));    }else{        if(arrowImage.getTag().toString().equalsIgnoreCase(getGroup(groupposition).name)) {            ObjectAnimator animator = ObjectAnimator.offloat(containerIndicator, "rotation", 180f,0);            animator.setDuration(400);            animator.start();        }     ... 

}

解决方法:

public class Consumptionexpandablelistadapter extends Baseexpandablelistadapter {    private Context mContext;    private List<ConsumptionItem> data;    private SparseBooleanArray expandState = new SparseBooleanArray();    public Consumptionexpandablelistadapter(Context context, List<ConsumptionItem> data) {        mContext = context;        this.data = data;        for (int i = 0; i < data.size(); i++) {            expandState.append(i, false);        }    }    public class VIEwHolderGroup {        private HashMap<Integer, VIEw> storedVIEws = new HashMap<Integer, VIEw>();        public VIEwHolderGroup() { }        public VIEwHolderGroup addVIEw(VIEw vIEw) {            int ID = vIEw.getID();            storedVIEws.put(ID, vIEw);            return this;        }        public VIEw getVIEw(int ID) {            return storedVIEws.get(ID);        }    }    @OverrIDe    public VIEw getGroupVIEw(final int groupposition, boolean isExpanded, VIEw v, VIEwGroup vIEwGroup) {        final ConsumptionItem consumptionItem = data.get(groupposition);        VIEw vIEw = v;        if (vIEw == null) {            vIEw = LayoutInflater.from(mContext).inflate(R.layout.List_item_consumption_group, vIEwGroup, false);            final TextVIEw name = (TextVIEw) vIEw.findVIEwByID(R.ID.name);            final TextVIEw serial = (TextVIEw) vIEw.findVIEwByID(R.ID.serial);            final ImageVIEw icon = (ImageVIEw) vIEw.findVIEwByID(R.ID.icon);            final ImageVIEw arrow = (ImageVIEw) vIEw.findVIEwByID(R.ID.arrow);            VIEwHolderGroup holder = new VIEwHolderGroup();            holder.addVIEw(name);            holder.addVIEw(serial);            holder.addVIEw(icon);            holder.addVIEw(arrow);            vIEw.setTag(holder);        }        VIEwHolderGroup holder = (VIEwHolderGroup) vIEw.getTag();        final TextVIEw name = (TextVIEw) holder.getVIEw(R.ID.name);        final TextVIEw serial = (TextVIEw) holder.getVIEw(R.ID.serial);        final ImageVIEw icon = (ImageVIEw) holder.getVIEw(R.ID.icon);        final ImageVIEw arrow = (ImageVIEw) holder.getVIEw(R.ID.arrow);        name.setText(consumptionItem.getname());        serial.setText(consumptionItem.getSerial());        arrow.setBackgroundResource(R.drawable.ic_keyboard_arrow_right_black_24dp);        if(consumptionItem.isstatus())            icon.setBackgroundResource(R.drawable.btn_ok_green);        else            icon.setBackgroundResource(R.drawable.btn_ok_red);        if (isExpanded && !expandState.get(groupposition)) {            animateExpand(arrow);            expandState.put(groupposition, true);        }        else if(!isExpanded && expandState.get(groupposition)) {            animateCollapse(arrow);            expandState.put(groupposition, false);        }        return vIEw;    }    private voID animateExpand(VIEw v) {        ObjectAnimator anim = ObjectAnimator.offloat(v, "rotation", 0, 90);        anim.setDuration(500);        anim.start();    }    private voID animateCollapse(VIEw v) {        ObjectAnimator anim = ObjectAnimator.offloat(v, "rotation", 90, 0);        anim.setDuration(500);        anim.start();    }    @OverrIDe    public VIEw getChildVIEw(int groupposition, int childposition, boolean isLastChild, VIEw vIEw, VIEwGroup vIEwGroup) {        final ConsumptionItem consumptionItem = data.get(groupposition);        final ConsumptionItem.Item item = consumptionItem.getItems().get(childposition);        vIEw = LayoutInflater.from(mContext).inflate(R.layout.List_item_consumption_child, vIEwGroup, false);        final TextVIEw month = (TextVIEw) vIEw.findVIEwByID(R.ID.month);        final TextVIEw date = (TextVIEw) vIEw.findVIEwByID(R.ID.date);        final TextVIEw indications = (TextVIEw) vIEw.findVIEwByID(R.ID.indications);        month.setText(item.getMonth());        date.setText(DateManager.getDateManager().getDateString(item.getDate()));        indications.setText(String.valueOf(item.getReadings()));        return vIEw;    }    @OverrIDe    public int getGroupCount() {        return data.size();    }    @OverrIDe    public int getChildrenCount(int groupposition) {        return data.get(groupposition).getItems().size();    }    @OverrIDe    public Object getGroup(int groupposition) {        return data.get(groupposition);    }    @OverrIDe    public Object getChild(int groupposition, int childposition) {        return data.get(groupposition).getItems().get(childposition);    }    @OverrIDe    public long getGroupID(int groupposition) {        return groupposition;    }    @OverrIDe    public long getChildID(int groupposition, int childposition) {        return childposition;    }    @OverrIDe    public boolean hasStableIDs() {        return true;    }    @OverrIDe    public boolean isChildSelectable(int groupposition, int childposition) {        return false;    }}

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