cn.ucai.wechat.ui.GroupsActivity.java Source code

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Here is the source code for cn.ucai.wechat.ui.GroupsActivity.java

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/**
 * Copyright (C) 2016 Hyphenate Inc. All rights reserved.
 * <p>
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * http://www.apache.org/licenses/LICENSE-2.0
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package cn.ucai.wechat.ui;

import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.support.v4.widget.SwipeRefreshLayout;
import android.support.v4.widget.SwipeRefreshLayout.OnRefreshListener;
import android.view.MotionEvent;
import android.view.View;
import android.view.View.OnTouchListener;
import android.view.WindowManager;
import android.view.inputmethod.InputMethodManager;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ListView;
import android.widget.Toast;

import com.hyphenate.chat.EMClient;
import com.hyphenate.chat.EMGroup;
import com.hyphenate.easeui.widget.EaseTitleBar;
import com.hyphenate.exceptions.HyphenateException;

import java.util.List;

import cn.ucai.wechat.Constant;
import cn.ucai.wechat.R;
import cn.ucai.wechat.adapter.GroupAdapter;
import cn.ucai.wechat.utils.MFGT;

public class GroupsActivity extends BaseActivity {
    public static final String TAG = "GroupsActivity";
    EaseTitleBar mTitleBar;

    private ListView groupListView;
    protected List<EMGroup> grouplist;
    private GroupAdapter groupAdapter;
    private InputMethodManager inputMethodManager;
    public static GroupsActivity instance;
    private View progressBar;
    private SwipeRefreshLayout swipeRefreshLayout;

    Handler handler = new Handler() {
        public void handleMessage(Message msg) {
            swipeRefreshLayout.setRefreshing(false);
            switch (msg.what) {
            case 0:
                refresh();
                break;
            case 1:
                Toast.makeText(GroupsActivity.this, R.string.Failed_to_get_group_chat_information,
                        Toast.LENGTH_LONG).show();
                break;

            default:
                break;
            }
        }
    };

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.em_fragment_groups);

        instance = this;
        inputMethodManager = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
        grouplist = EMClient.getInstance().groupManager().getAllGroups();
        groupListView = (ListView) findViewById(R.id.list);
        //show group list
        groupAdapter = new GroupAdapter(this, 1, grouplist);
        groupListView.setAdapter(groupAdapter);

        mTitleBar = (EaseTitleBar) findViewById(R.id.title_bar);
        initBackListener();

        swipeRefreshLayout = (SwipeRefreshLayout) findViewById(R.id.swipe_layout);
        swipeRefreshLayout.setColorSchemeResources(R.color.holo_blue_bright, R.color.holo_green_light,
                R.color.holo_orange_light, R.color.holo_red_light);
        //pull down to refresh
        swipeRefreshLayout.setOnRefreshListener(new OnRefreshListener() {

            @Override
            public void onRefresh() {
                new Thread() {
                    @Override
                    public void run() {
                        try {
                            EMClient.getInstance().groupManager().getJoinedGroupsFromServer();
                            handler.sendEmptyMessage(0);
                        } catch (HyphenateException e) {
                            e.printStackTrace();
                            handler.sendEmptyMessage(1);
                        }
                    }
                }.start();
            }
        });

        groupListView.setOnItemClickListener(new OnItemClickListener() {

            @Override
            public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
                if (position == 1) {
                    // create a new group
                    startActivityForResult(new Intent(GroupsActivity.this, NewGroupActivity.class), 0);
                } else if (position == 2) {
                    // join a public group
                    startActivityForResult(new Intent(GroupsActivity.this, PublicGroupsActivity.class), 0);
                } else {
                    // enter group chat
                    Intent intent = new Intent(GroupsActivity.this, ChatActivity.class);
                    // it is group chat
                    intent.putExtra("chatType", Constant.CHATTYPE_GROUP);
                    intent.putExtra("userId", groupAdapter.getItem(position - 3).getGroupId());
                    startActivityForResult(intent, 0);
                }
            }

        });
        groupListView.setOnTouchListener(new OnTouchListener() {

            @Override
            public boolean onTouch(View v, MotionEvent event) {
                if (getWindow()
                        .getAttributes().softInputMode != WindowManager.LayoutParams.SOFT_INPUT_STATE_HIDDEN) {
                    if (getCurrentFocus() != null)
                        inputMethodManager.hideSoftInputFromWindow(getCurrentFocus().getWindowToken(),
                                InputMethodManager.HIDE_NOT_ALWAYS);
                }
                return false;
            }
        });

    }

    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
    }

    @Override
    public void onResume() {
        refresh();
        super.onResume();
    }

    private void refresh() {
        grouplist = EMClient.getInstance().groupManager().getAllGroups();
        groupAdapter = new GroupAdapter(this, 1, grouplist);
        groupListView.setAdapter(groupAdapter);
        groupAdapter.notifyDataSetChanged();
    }

    @Override
    protected void onDestroy() {
        super.onDestroy();
        instance = null;
    }

    private void initBackListener() {
        mTitleBar.setLeftLayoutClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                MFGT.finish(GroupsActivity.this);
            }
        });
    }

}