BlackListActivity.java

package cn.rongcloud.im.ui.activity;

import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ListView;
import android.widget.TextView;

import java.util.List;

import cn.rongcloud.im.App;
import cn.rongcloud.im.R;
import cn.rongcloud.im.SealUserInfoManager;
import cn.rongcloud.im.server.widget.LoadDialog;
import cn.rongcloud.im.server.widget.SelectableRoundedImageView;
import io.rong.imageloader.core.ImageLoader;
import io.rong.imlib.model.UserInfo;

public class BlackListActivity extends BaseActivity {

    private TextView isShowData;
    private ListView mBlackList;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.fragment_black);
        setTitle(R.string.the_blacklist);
        initView();
        requestData();
    }

    private void requestData() {
        LoadDialog.show(mContext);
        SealUserInfoManager.getInstance().getBlackList(new SealUserInfoManager.ResultCallback<List<UserInfo>>() {
            @Override
            public void onSuccess(List<UserInfo> userInfoList) {
                LoadDialog.dismiss(mContext);
                if (userInfoList != null) {
                    if (userInfoList.size() > 0) {
                        MyBlackListAdapter adapter = new MyBlackListAdapter(userInfoList);
                        mBlackList.setAdapter(adapter);
                    } else {
                        isShowData.setVisibility(View.VISIBLE);
                    }
                }
            }

            @Override
            public void onError(String errString) {
                LoadDialog.dismiss(mContext);
            }
        });
    }

    private void initView() {
        isShowData = (TextView) findViewById(R.id.blacklsit_show_data);
        mBlackList = (ListView) findViewById(R.id.blacklsit_list);
    }

    class MyBlackListAdapter extends BaseAdapter {

        private List<UserInfo> userInfoList;

        public MyBlackListAdapter(List<UserInfo> dataList) {
            this.userInfoList = dataList;
        }

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

        @Override
        public Object getItem(int position) {
            return userInfoList.get(position);
        }

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

        @Override
        public View getView(int position, View convertView, ViewGroup parent) {
            ViewHolder viewHolder;
            UserInfo userInfo = userInfoList.get(position);
            if (convertView == null) {
                viewHolder = new ViewHolder();
                convertView = LayoutInflater.from(mContext).inflate(R.layout.black_item_new, parent, false);
                viewHolder.mName = (TextView) convertView.findViewById(R.id.blackname);
                viewHolder.mHead = (SelectableRoundedImageView) convertView.findViewById(R.id.blackuri);
                convertView.setTag(viewHolder);
            } else {
                viewHolder = (ViewHolder) convertView.getTag();
            }
            viewHolder.mName.setText(userInfo.getName());
            String portraitUri = SealUserInfoManager.getInstance().getPortraitUri(userInfo);
            ImageLoader.getInstance().displayImage(portraitUri, viewHolder.mHead, App.getOptions());
            return convertView;
        }


        class ViewHolder {
            SelectableRoundedImageView mHead;
            TextView mName;
        }
    }
}