3
CardViews를 사용하여 RecyclerView를 작성하고 CAB을 사용하여 선택시 여러 개의 카드를 삭제하려고합니다. 선택한 카드에 배경색을 어떻게 부여합니까?CardView는 RecyclerView에서 배경색을 선택했습니다.
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_activated="true" android:drawable="@color/primary_dark" />
<item android:drawable="@android:color/transparent" />
</selector>
과 같은 CardView 레이아웃에 적용 : 나는 다음과 같은 statelistdrawable 사용하려고 아래
<android.support.v7.widget.CardView xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/card_view"
xmlns:card_view="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="@drawable/statelist_item_background"
card_view:cardCornerRadius="10dp"
card_view:cardElevation="10dp"
android:layout_marginTop="5dp"
android:layout_marginBottom="5dp"
android:layout_marginLeft="5dp"
android:layout_marginRight="5dp"
>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
>
<ImageView
android:id="@+id/imageView"
android:tag="image_tag"
android:layout_width="72dp"
android:layout_height="100dp"
android:layout_margin="5dp"
android:layout_weight="1"
android:src="@drawable/one"/>
<LinearLayout
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginTop="12dp"
android:layout_weight="2"
android:orientation="vertical"
>
<TextView
android:id="@+id/textViewName"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:layout_marginTop="10dp"
android:text="Large Text"
android:textAppearance="?android:attr/textAppearanceLarge"/>
<TextView
android:id="@+id/textViewEmail"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:layout_marginTop="10dp"
android:text="Medium Text"
android:textAppearance="?android:attr/textAppearanceMedium"/>
</LinearLayout>
</LinearLayout>
</android.support.v7.widget.CardView>
하는 방법 업데이트
public class modeladapter extends RecyclerView.Adapter<modeladapter.myholder> {
ArrayList<MyModel> arraylist;
SparseBooleanArray selecteditems;
public modeladapter(ArrayList<MyModel> ar) {
arraylist=ar;
selecteditems=new SparseBooleanArray();
}
public void removeData(int position) {
arraylist.remove(position);
notifyItemRemoved(position);
}
public MyModel getItem(int position) {
return arraylist.get(position);
}
public void addData(MyModel newModelData, int position) {
arraylist.add(position, newModelData);
notifyItemInserted(position);
}
public void toggleSelection(int pos) {
if (selecteditems.get(pos, false)) {
selecteditems.delete(pos);
}
else {
selecteditems.put(pos, true);
}
notifyItemChanged(pos);
}
public void clearSelections() {
selecteditems.clear();
notifyDataSetChanged();
}
public int getSelectedItemCount() {
return selecteditems.size();
}
public List<Integer> getSelectedItems() {
List<Integer> items = new ArrayList<Integer>(selecteditems.size());
for (int i = 0; i < selecteditems.size(); i++) {
items.add(selecteditems.keyAt(i));
}
return items;
}
@Override
public modeladapter.myholder onCreateViewHolder(ViewGroup viewGroup, int i) {
LayoutInflater lf=LayoutInflater.from(viewGroup.getContext());
View v = lf.inflate(R.layout.card_lay, viewGroup, false);
// v.setOnClickListener(Activity_Main.listener);
myholder m=new myholder(v);
return m;
}
@Override
public void onBindViewHolder(modeladapter.myholder m, int i) {
m.cimage.setImageResource(arraylist.get(i).url);
m.email.setText(arraylist.get(i).email);
m.name.setText(arraylist.get(i).name);
m.itemView.setActivated(selecteditems.get(i,false));
}
@Override
public int getItemCount() {return (arraylist.size());}
public static class myholder extends RecyclerView.ViewHolder
{
ImageView cimage;
TextView name,email;
public myholder(View itemView) {
super(itemView);
cimage= (ImageView) itemView.findViewById(R.id.imageView);
name= (TextView) itemView.findViewById(R.id.textViewName);
email= (TextView) itemView.findViewById(R.id.textViewEmail);
if(itemView.isActivated())
itemView.setBackgroundColor(itemView.getContext().getResources().getColor(R.color.primary_dark));
else
itemView.setBackgroundColor(Color.parseColor("#ffffff"));
}
}
친절하게 내 어댑터에 대한 코드입니다 선택한 항목의 배경색을 변경할 수 있습니다. 감사
당신은 반드시 할 필요가 없습니다
당신이 해결나요? –
@ JaredBurrows 나는 그렇게 할 수 있었다. – user2779311
내 게시물 도움이 되었습니까? –