這篇文章給大家分享的是有關(guān)Android中如何解使用RecyclerView實(shí)現(xiàn)投票系統(tǒng)的內(nèi)容。小編覺得挺實(shí)用的，因此分享給大家做個(gè)參考，一起跟隨小編過(guò)來(lái)看看吧。

一、創(chuàng)建一個(gè)fragment_vote_list.xml用來(lái)顯示投票的主頁(yè)面

（1）標(biāo)題欄使用Toolbar（2）投票區(qū)域可以滑動(dòng)，使用RecyclerView實(shí)現(xiàn)

                   

注：界面字體大小以及控件寬度自行調(diào)整即可，使用RecyclerView首先需要在項(xiàng)目的build.gradle中添加相應(yīng)的依賴庫(kù)才行。添加:implementation ‘com.android.support:recyclerview-v7:24.2.1'

二、創(chuàng)建一個(gè)item_vote.xml用來(lái)顯示投票的具體內(nèi)容

（1）主布局使用LinearLayout實(shí)現(xiàn)，里面添加一個(gè)TextView用來(lái)顯示投票的問(wèn)題，使用CheckBox作為投票的多選框。（2）將當(dāng)前的Item加載到投票的主頁(yè)面中

     

三、創(chuàng)建一個(gè)投票信息實(shí)體類作為適配器的適配類型,新建VoteInfo.java類。

public class VoteInfo { private String questionItem; private String[] answerItems; public VoteInfo(String questionItem,String[] answerItems){  this.questionItem=questionItem;  this.answerItems=answerItems; } public String getQuestionItem(){  return questionItem; } public String[] getAnswerItems(){  return answerItems; }}

四、接下來(lái)需要為RecyclerView準(zhǔn)備一個(gè)適配器，新建VoteInfoAdapter.java，讓這個(gè)適配器繼承自RecyclerView.Adapter，并將泛型指定為VoteInfoAdapter.ViewHolder。其中，ViewHolder是我們?cè)赩oteInfoAdapter中定義的一個(gè)內(nèi)部類。

public class VoteInfoAdapter extends RecyclerView.Adapter { private List mVoteInfoList; @Override public ViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {  View view= LayoutInflater.from(parent.getContext()).inflate(R.layout.item_vote,parent,false);  ViewHolder holder=new ViewHolder(view);  return holder; } @Override public void onBindViewHolder(@NonNull ViewHolder holder, int position) {  VoteInfo voteInfo=mVoteInfoList.get(position);  holder.questionItem.setText(voteInfo.getQuestionItem());  holder.answerItem_1.setText(voteInfo.getAnswerItems()[0]);  holder.answerItem_2.setText(voteInfo.getAnswerItems()[1]);  holder.answerItem_3.setText(voteInfo.getAnswerItems()[2]); } @Override public int getItemCount() {  return mVoteInfoList.size(); } static class ViewHolder extends RecyclerView.ViewHolder{  TextView questionItem;  CheckBox answerItem_1;  CheckBox answerItem_2;  CheckBox answerItem_3;  public ViewHolder(View itemView) {   super(itemView);   questionItem=(TextView)itemView.findViewById(R.id.item_vote_question_tv);   answerItem_1=(CheckBox)itemView.findViewById(R.id.item_vote_answer1_cb);   answerItem_2=(CheckBox)itemView.findViewById(R.id.item_vote_answer2_cb);   answerItem_3=(CheckBox)itemView.findViewById(R.id.item_vote_answer3_cb);  } } public VoteInfoAdapter(List voteInfoList){  mVoteInfoList=voteInfoList; }}

五、適配器已經(jīng)準(zhǔn)備完畢，開始使用RecyclerView，新建一個(gè)ShowVoteAdapter.java類。

public class ShowVoteActivity extends BaseActivity{ @BindView(R.id.vote_list_recycleview) RecyclerView recyclerView; private List voteInfoList=new ArrayList(); @Override protected void onCreate(Bundle saveInstanceState) {  super.onCreate(saveInstanceState);  ScreenUtils.setContentViewWithOrientation(this,    ScreenUtils.isPhone() ? R.layout.fragment_vote_list : R.layout.fragment_vote_list);  initVoteInfo();  LinearLayoutManager linearLayoutManager=new LinearLayoutManager(this);  recyclerView.setLayoutManager(linearLayoutManager);  VoteInfoAdapter voteInfoAdapter=new VoteInfoAdapter(voteInfoList);  recyclerView.setAdapter(voteInfoAdapter); } private void initVoteInfo(){  VoteInfo vote1=new VoteInfo("1.請(qǐng)問(wèn)以下哪個(gè)答案很好?",new String[]{"AAAAAA","BBBBBB","CCCCCC"});  voteInfoList.add(vote1);  VoteInfo vote2=new VoteInfo("2.請(qǐng)問(wèn)以下哪個(gè)答案很好?",new String[]{"AAAAAA","BBBBBB","CCCCCC"});  voteInfoList.add(vote2);  VoteInfo vote3=new VoteInfo("3.請(qǐng)問(wèn)以下哪個(gè)答案很好?",new String[]{"AAAAAA","BBBBBB","CCCCCC"});  voteInfoList.add(vote3);  VoteInfo vote4=new VoteInfo("4.請(qǐng)問(wèn)以下哪個(gè)答案很好?",new String[]{"AAAAAA","BBBBBB","CCCCCC"});  voteInfoList.add(vote4);  VoteInfo vote5=new VoteInfo("5.請(qǐng)問(wèn)以下哪個(gè)答案很好?",new String[]{"AAAAAA","BBBBBB","CCCCCC"});  voteInfoList.add(vote5);  VoteInfo vote6=new VoteInfo("6.請(qǐng)問(wèn)以下哪個(gè)答案很好?",new String[]{"AAAAAA","BBBBBB","CCCCCC"});  voteInfoList.add(vote6);  VoteInfo vote7=new VoteInfo("7.請(qǐng)問(wèn)以下哪個(gè)答案很好?",new String[]{"AAAAAA","BBBBBB","CCCCCC"});  voteInfoList.add(vote7);  VoteInfo vote8=new VoteInfo("8.請(qǐng)問(wèn)以下哪個(gè)答案很好?",new String[]{"AAAAAA","BBBBBB","CCCCCC"});  voteInfoList.add(vote8);  VoteInfo vote9=new VoteInfo("9.請(qǐng)問(wèn)以下哪個(gè)答案很好?",new String[]{"AAAAAA","BBBBBB","CCCCCC"});  voteInfoList.add(vote9);  VoteInfo vote10=new VoteInfo("10.請(qǐng)問(wèn)以下哪個(gè)答案很好?",new String[]{"AAAAAA","BBBBBB","CCCCCC"});  voteInfoList.add(vote10);  VoteInfo vote11=new VoteInfo("11.請(qǐng)問(wèn)以下哪個(gè)答案很好?",new String[]{"AAAAAA","BBBBBB","CCCCCC"});  voteInfoList.add(vote11); }}

六、需要AndroidManifest.xml中注冊(cè)ShowVoteActivity，才能夠正常啟動(dòng)。

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本文名稱：Android中如何解使用RecyclerView實(shí)現(xiàn)投票系統(tǒng)-創(chuàng)新互聯(lián)
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