Android實現可複用的選擇頁面

這篇文章主要爲大家詳細介紹了Android實現可複用的選擇頁面，具有一定的參考價值，感興趣的小夥伴們可以參考一下

本文實例爲大家分享了Android實現可複用的選擇頁面的具體代碼，供大家參考，具體內容如下

窗口代碼

/**
 * 根據上一個頁面傳過來的isMultipleEnable判斷是否可以多選
 * 1.單選頁面選中一個條目直接結束並回傳
 * 2.多選頁面選中之後需要提交
 * 3.提交數據之後需要刷新列表
 */
public class UserSelectActivity extends AppCompatActivity implements View.OnClickListener {

  private static final String TAG = "UserSelectActivity";

  @BindView(R.id.tv_title_middle)
  TextView title;
  @BindView(R.id.title_left)
  ImageView back;
  @BindView(R.id.normal_user_listview)
  ListView mListView;
  @BindView(R.id.edit_tv)
  TextView edit;
  @BindView(R.id.filter_tv)
  TextView filter;

  private Context mContext;
  private boolean isMultipleEnable;
  private UserSelectAdapter mAdapter;
  private List<ClsNormalUser> mClsNormalUserList;

  @Override
  protected void onCreate(@Nullable Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_normal_user_list);
    //初始化ButterKnife
    ButterKnife.bind(this);

    initView();
    initData();
    initListener();
  }

  private void initData() {
    mContext = this;

    //通過源頁面傳過來的值來生成對應的視圖，默認是單選
    isMultipleEnable = getIntent().getBooleanExtra("isMultipleEnable", false);

    //初始化數據源
    mClsNormalUserList = new ArrayList<>();
    mAdapter = new UserSelectAdapter(mClsNormalUserList, mContext);
    mListView.setAdapter(mAdapter);

    getOfflineData(20);

    //多選頁面要顯示提交按鈕和checkbox
    if (isMultipleEnable) {
      edit.setCompoundDrawablesWithIntrinsicBounds(R.drawable.ic_send_black_24dp, 0, 0, 0);
      edit.setVisibility(View.VISIBLE);

      for (ClsNormalUser user : mClsNormalUserList) {
        user.setIsCheckBoxVisible(true);
      }
    }
  }

  //生成模擬數據
  private void getOfflineData(int num) {
    List<ClsNormalUser> clsNormalUserList = new ArrayList<>();
    for (int i = 0; i < num; i++) {
      ClsNormalUser clsNormalUser = new ClsNormalUser();
      clsNormalUser.setUserID("userID " + i);
      clsNormalUser.setWorkNumber("workNumber " + i);
      clsNormalUser.setUserType("userType " + i);
      clsNormalUser.setOrgName("orgName " + i);
      clsNormalUser.setCName("cName " + i);
      clsNormalUser.setSysUserName("sysUserName " + i);
      clsNormalUser.setOrgID("orgID " + i);
      clsNormalUser.setWorkPos("workPos " + i);
      clsNormalUserList.add(clsNormalUser);
    }
    //數據填充後要同時適配器刷新視圖
    mClsNormalUserList.addAll(clsNormalUserList);
    mAdapter.notifyDataSetChanged();
  }

  private void initView() {
    title.setText("選擇用戶");
  }

  private void initListener() {
    edit.setOnClickListener(this);

    mListView.setOnItemClickListener((parent, view, position, id) -> {
      ClsNormalUser clsNormalUser = mClsNormalUserList.get(position);
      if (isMultipleEnable) {
        //多選狀態下點擊選中當前條目
        if (clsNormalUser.getIsCheckBoxVisible()) {
          clsNormalUser.setIsChecked(!clsNormalUser.getIsChecked());
          mAdapter.notifyDataSetChanged();
        }
      } else {
        //單選狀態下點擊結束當前頁並回傳值
        Intent intent = new Intent();
        //實體類要實現序列化接口Parcelable
        intent.putExtra("user", clsNormalUser);
        setResult(RESULT_OK, intent);
        finish();
      }
    });
  }


  @Override
  public void onClick(View v) {

    //點擊提交按鈕將選中的值回傳並結束當前頁
    if (v.getId() == R.id.edit_tv) {
      ArrayList<ClsNormalUser> normalUserList = new ArrayList<>();
      for (ClsNormalUser normalUser : mClsNormalUserList) {
        if (normalUser.getIsChecked()) {
          normalUserList.add(normalUser);
        }
      }
      Intent intent = new Intent();
      //實體類要實現序列化接口Parcelable
      intent.putParcelableArrayListExtra("users", normalUserList);
      setResult(RESULT_OK, intent);
      finish();
    }
  }
}

適配器代碼

public class UserSelectAdapter extends BaseAdapter {

  private List<ClsNormalUser> mList;
  private LayoutInflater mInflater;

  public UserSelectAdapter(List<ClsNormalUser> list, Context mContext) {
    mList = list;
    mInflater = LayoutInflater.from(mContext);
  }

  @Override
  public int getCount() {
    return mList.size();
  }

  @Override
  public ClsNormalUser getItem(int position) {
    return mList.get(position);
  }

  @Override
  public long getItemId(int position) {
    return position;
  }

  @Override
  public View getView(final int position, View convertView, ViewGroup root) {
    ItemHolder holder;
    ClsNormalUser clsNormalUser = mList.get(position);

    if (convertView == null) {
      convertView = mInflater.inflate(R.layout.item_alluser_sys, null);
      holder = new ItemHolder();
      holder.id = convertView.findViewById(R.id.user_id);
      holder.name = convertView.findViewById(R.id.user_name);
      holder.org = convertView.findViewById(R.id.user_org);

      holder.checkBox = convertView.findViewById(R.id.user_checkbox);
      convertView.setTag(holder);
    } else {
      holder = (ItemHolder) convertView.getTag();
    }

    holder.id.setText(clsNormalUser.getUserID());
    holder.name.setText(clsNormalUser.getCName());
    holder.org.setText(clsNormalUser.getOrgName());

    //是否顯示checkbox
    if (clsNormalUser.getIsCheckBoxVisible()) {
      holder.checkBox.setVisibility(View.VISIBLE);
    } else {
      holder.checkBox.setVisibility(View.GONE);
    }

    //條目是否選中
    if (clsNormalUser.getIsChecked()) {
      holder.checkBox.setImageResource(R.drawable.ic_check_box_black_24dp);
    } else {
      holder.checkBox.setImageResource(R.drawable.ic_check_box_outline_blank_black_24dp);
    }

    return convertView;
  }

  class ItemHolder {
    TextView id;
    TextView name;
    TextView org;
    ImageView checkBox;
  }
}

效果如圖

以上就是本文的全部內容，希望對大家的學習有所幫助，也希望大家多多支持神馬文庫。