我制作了一个RecyclerView,将32个问题和4个答案显示为RadioButton
。当我单击单个单选按钮时,它可以工作,并且在选中它时会显示祝酒词。
但是当我滚动RecyclerView`时,它显示了吐司,就像我选中了一个单选按钮一样。
我该如何解决?
我的适配器:
public class sikapadapter extends RecyclerView.Adapter<sikapadapter.ViewHolder> {
private int[] integer;
String option[];
private OnRadioChangeListener onRadioChangeListener;
public sikapadapter(String[] option, OnRadioChangeListener onRadioChangeListener) {
this.option = option;
this.onRadioChangeListener = onRadioChangeListener;
integer = new int[option.length];
}
interface OnRadioChangeListener{
void onRadioChange(int position,int checkedId);
}
@NonNull
@Override
public ViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
LayoutInflater inflater = LayoutInflater.from(parent.getContext());
View view = inflater.inflate(R.layout.recycleview_sikap_layout,parent,false);
sikapadapter.ViewHolder aadvh = new sikapadapter.ViewHolder(view);
return aadvh;
}
@Override
public void onBindViewHolder(@NonNull ViewHolder holder, int position) {
if(integer[position] == 1){
holder.radio.check(R.id.radiobutton1);
}else if(integer[position] == 2){
holder.radio.check(R.id.radiobutton2);
}else if(integer[position] == 3){
holder.radio.check(R.id.radiobutton3);
}else if(integer[position] == 4){
holder.radio.check(R.id.radiobutton4);
}else {
holder.radio.clearCheck();
}
holder.text.setText(option[position]);
holder.radio.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() {
@Override
public void onCheckedChanged(RadioGroup group, int checkedId) {
if(onRadioChangeListener!=null){
if(checkedId == R.id.radiobutton1){
checkedId = 1;
integer[position] = 1;
onRadioChangeListener.onRadioChange(position,checkedId);
}
if(checkedId == R.id.radiobutton2){
checkedId = 2;
integer[position] = 2;
onRadioChangeListener.onRadioChange(position,checkedId);
}
if(checkedId == R.id.radiobutton3){
checkedId = 3;
integer[position] = 3;
onRadioChangeListener.onRadioChange(position,checkedId);
}
if(checkedId == R.id.radiobutton4){
checkedId = 4;
integer[position] = 4;
onRadioChangeListener.onRadioChange(position,checkedId);
}
}
}
});
}
@Override
public int getItemCount() {
return option.length;
}
public class ViewHolder extends RecyclerView.ViewHolder{
TextView text;
RadioGroup radio;
RadioButton radio1,radio2,radio3,radio4;
public ViewHolder(@NonNull View itemView) {
super(itemView);
text = itemView.findViewById(R.id.recytexttampil);
radio = itemView.findViewById(R.id.radiogroup);
radio1 = itemView.findViewById(R.id.radiobutton1);
radio2 = itemView.findViewById(R.id.radiobutton2);
radio3 = itemView.findViewById(R.id.radiobutton3);
radio4 = itemView.findViewById(R.id.radiobutton4);
}
}
}
像这样-我从未检查过适配器位置19,但是滚动时会检查自身:
在设置onBindViewHolder()
中的所选按钮之前,请先清除所有选中的按钮
调用radio.check
会触发任何OnCheckedChangeListener
,因此,当为回收的ViewHolder调用onBindViewHolder
时,将触发从上一个绑定附加的侦听器。