1.阐明
文件夹共享分为两种状况：
- 一种是在创立文件夹时抉择文件夹类型为共享文件夹，另外他人共享给我的文件夹。
- 第一种状况是没有共享者的，根目录不能共享，相当于能够有多个拜访成员的非共享文件夹；
第二种状况是有共享者的，在共享文件列表能够再共享给他人。
以第一种形式共享文件夹时，能够给访问者设置读、写和删权限；
以第二种形式共享文件夹，读、写和删的权限受制于共享者本人是否有对应的权限。
在设置权限时，如果用户去掉了读权限，那么写和删权限也会随之去掉；如果用户抉择了写或删权限，那么会主动把读权限也选上。
1)次要代码实现
/** * 共享文件夹 */public class ShareFolderActivity extends BaseMVPDBActivity<ActivityShareFolderBinding, ShareFolderContract.View, ShareFolderPresenter> implements ShareFolderContract.View { ... /** * 编辑成员弹窗 */ private void initOperatePermissionDialog(){ operatePermissionDialog = OperatePermissionDialog.getInstance(); operatePermissionDialog.setConfirmListener(new OperatePermissionDialog.OnConfirmListener() { @Override public void onConfirm(int read, int write, int del) { List<String> paths = new ArrayList<>(); for (FileBean fileBean : folders){ // 要共享的文件夹 paths.add(fileBean.getPath()); } List<Integer> to_users = new ArrayList<>(); for (MemberBean.UsersBean usersBean : memberAdapter.getSelectedUsers()){ // 抉择的成员 to_users.add(usersBean.getUser_id()); } ShareRequest shareRequest = new ShareRequest(to_users, paths, read, write, del, Constant.userName); mPresenter.share(Constant.scope_token, shareRequest); } }); } ... public class OnClickHandler { public void onClick(View view) { int viewId = view.getId(); if (viewId == R.id.ivBack){ // 返回 ... }else if (viewId == R.id.tvAll){ // 全选 ... }else if (viewId == R.id.tvConfirm){ // 确定 Bundle bundle = new Bundle(); bundle.putInt("read", 1); // 读权限 bundle.putBoolean("originalWrite", originalWrite); // 写权限 bundle.putBoolean("originalDel", originalDel); // 删权限 bundle.putBoolean("checkSaveEnabled", true); List<PermissionUserBean> users = new ArrayList<>(); for (MemberBean.UsersBean usersBean : memberAdapter.getSelectedUsers()) { PermissionUserBean permissionUserBean = new PermissionUserBean(usersBean.getNickname(), ""); users.add(permissionUserBean); } bundle.putSerializable("users", (Serializable) users); operatePermissionDialog.setArguments(bundle); operatePermissionDialog.show(ShareFolderActivity.this); } } }}/** * 用户操作权限弹窗 */public class OperatePermissionDialog extends CommonBaseDialog { ... @Override protected void initArgs(Bundle arguments) { read = arguments.getInt("read", 0); write = arguments.getInt("write", 0); del = arguments.getInt("del", 0); originalWrite = arguments.getBoolean("originalWrite"); originalDel = arguments.getBoolean("originalDel"); checkSaveEnabled = arguments.getBoolean("checkSaveEnabled"); users = (List<PermissionUserBean>) arguments.getSerializable("users"); } ... /** * 初始化列表 */ private void initRv(){ ... operatePermissionAdapter.setOnItemClickListener(new BaseQuickAdapter.OnItemClickListener() { @Override public void onItemClick(BaseQuickAdapter adapter, View view, int position) { OperatePermissionBean operatePermissionBean = operatePermissionAdapter.getItem(position); boolean selected = operatePermissionBean.isSelected(); operatePermissionBean.setSelected(!selected); List<OperatePermissionBean> permissionData = operatePermissionAdapter.getData(); switch (position){ case 0: read = selected ? 0 : 1; if (read == 0){ // 如果没有读权限，也就没有写删权限 for (OperatePermissionBean opb : permissionData){ opb.setSelected(false); } write = 0; del = 0; } break; case 1: write = selected ? 0 : 1; if (write == 1){ // 如果抉择了写权限，读权限也要一并抉择 permissionData.get(0).setSelected(true); read = 1; } break; case 2: del = selected ? 0 : 1; if (del == 1){ // 如果抉择了删权限，读权限也要一并抉择 permissionData.get(0).setSelected(true); read = 1; } break; } operatePermissionAdapter.notifyDataSetChanged(); setSaveStatus(); } }); } ...}