package com.lincanbin.carbonforum;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.content.SharedPreferences;
import android.content.res.Configuration;
import android.graphics.Color;
import android.net.Uri;
import android.os.AsyncTask;
import android.os.Bundle;
import android.support.design.widget.FloatingActionButton;
import android.support.design.widget.Snackbar;
import android.support.v4.content.LocalBroadcastManager;
import android.support.v4.widget.SwipeRefreshLayout;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.DefaultItemAnimator;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.support.v7.widget.Toolbar;
import android.view.View;
import com.lincanbin.carbonforum.adapter.TopicAdapter;
import com.lincanbin.carbonforum.application.CarbonForumApplication;
import com.lincanbin.carbonforum.config.APIAddress;
import com.lincanbin.carbonforum.service.PushService;
import com.lincanbin.carbonforum.util.HttpUtil;
import com.lincanbin.carbonforum.util.JSONUtil;
import com.mikepenz.google_material_typeface_library.GoogleMaterial;
import com.mikepenz.materialdrawer.AccountHeader;
import com.mikepenz.materialdrawer.AccountHeaderBuilder;
import com.mikepenz.materialdrawer.Drawer;
import com.mikepenz.materialdrawer.DrawerBuilder;
import com.mikepenz.materialdrawer.holder.BadgeStyle;
import com.mikepenz.materialdrawer.holder.StringHolder;
import com.mikepenz.materialdrawer.model.DividerDrawerItem;
import com.mikepenz.materialdrawer.model.PrimaryDrawerItem;
import com.mikepenz.materialdrawer.model.ProfileDrawerItem;
import com.mikepenz.materialdrawer.model.ProfileSettingDrawerItem;
import com.mikepenz.materialdrawer.model.interfaces.IDrawerItem;
import com.mikepenz.materialdrawer.model.interfaces.IProfile;
import com.mikepenz.materialdrawer.util.RecyclerViewCacheUtil;
import org.json.JSONException;
import org.json.JSONObject;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
//http://stackoverflow.com/questions/28150100/setsupportactionbar-throws-error/28150167
public class IndexActivity extends AppCompatActivity implements SwipeRefreshLayout.OnRefreshListener {
private Toolbar mToolbar;
//save our header or result
private AccountHeader headerResult = null;
private Drawer mDrawer = null;
private RecyclerView mRecyclerView ;
private SwipeRefreshLayout mSwipeRefreshLayout;
private FloatingActionButton mFloatingActionButton;
private TopicAdapter mAdapter;
//private SharedPreferences mSharedPreferences;
//private ActionBarDrawerToggle mDrawerToggle;
private int currentPage = 0;
private int totalPage = 65536;
private Boolean enableScrollListener = true;
private List<Map<String,Object>> topicList = new ArrayList<>();
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_index);
//注册一个广播用来登录和退出时刷新Drawer
IntentFilter intentFilter = new IntentFilter();
intentFilter.addAction("action.refreshDrawer");
LocalBroadcastManager.getInstance(this).registerReceiver(mRefreshDrawerBroadcastReceiver, intentFilter);
//mSharedPreferences = getSharedPreferences("UserInfo", Activity.MODE_PRIVATE);
// 设置ToolBar
mToolbar = (Toolbar) findViewById(R.id.toolbar);
mFloatingActionButton = (FloatingActionButton) findViewById(R.id.fab);
mFloatingActionButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
Intent intent = new Intent(IndexActivity.this, NewActivity.class);
startActivity(intent);
}
});
if (mToolbar != null) {
setSupportActionBar(mToolbar);//把Toolbar当做ActionBar给设置了
getSupportActionBar().setHomeButtonEnabled(true);
getSupportActionBar().setTitle(R.string.app_name);
//mToolbar.bringToFront();
//toolbar.setLogo(R.drawable.ic_launcher);
// toolbar.setSubtitle("Sub title");
refreshDrawer(savedInstanceState);
}
//下拉刷新监听器
mSwipeRefreshLayout = (SwipeRefreshLayout) findViewById(R.id.activity_index_swipe_refresh_layout);
//设置刷新时动画的颜色，可以设置4个
mSwipeRefreshLayout.setColorSchemeResources(
R.color.material_light_blue_700,
R.color.material_red_700,
R.color.material_orange_700,
R.color.material_light_green_700
);
mSwipeRefreshLayout.setOnRefreshListener(this);
//RecyclerView
mRecyclerView = (RecyclerView) findViewById(R.id.topic_list);
//使RecyclerView保持固定的大小，这样会提高RecyclerView的性能
mRecyclerView.setHasFixedSize(true);
// 创建一个线性布局管理器
final LinearLayoutManager layoutManager = new LinearLayoutManager(this);
//setOnScrollListener已废弃，使用addOnScrollListener需要在使用后用clearOnScrollListeners()移除监听器
mRecyclerView.addOnScrollListener(new RecyclerView.OnScrollListener() {
@Override
public void onScrollStateChanged(RecyclerView recyclerView, int newState) {
// 当不滚动时
if (newState == RecyclerView.SCROLL_STATE_IDLE) {
//获取最后一个完全显示的ItemPosition
int lastVisibleItem = layoutManager.findLastCompletelyVisibleItemPosition();
int totalItemCount = layoutManager.getItemCount();
// 判断是否滚动到底部，并且是向右滚动
if (lastVisibleItem >= (totalItemCount - 5) && enableScrollListener && currentPage < totalPage) {
//加载更多功能的代码
loadTopic(currentPage + 1, false);
}
}
}
@Override
public void onScrolled(RecyclerView recyclerView, int dx, int dy) {
super.onScrolled(recyclerView, dx, dy);
//dx用来判断横向滑动方向，dy用来判断纵向滑动方向
/*
if (dx > 0) {
//大于0表示，正在向右滚动
} else {
//小于等于0 表示停止或向左滚动
}
*/
}
});
// 设置布局管理器
mRecyclerView.setLayoutManager(layoutManager);
//设置Item默认动画
mRecyclerView.setItemAnimator(new DefaultItemAnimator());
//指定数据集
mAdapter = new TopicAdapter(this);
mAdapter.setData(topicList);
//设置Adapter
mRecyclerView.setAdapter(mAdapter);
//Activity渲染完毕时加载帖子，使用缓存
loadTopic(1, true);
}
@Override
protected void onDestroy() {
super.onDestroy();
LocalBroadcastManager.getInstance(this).unregisterReceiver(mRefreshDrawerBroadcastReceiver);
}
//加载帖子列表
private void loadTopic(int targetPage, Boolean enableCache) {
new GetTopicsTask(targetPage, enableCache).execute();
}
// broadcast receiver
private BroadcastReceiver mRefreshDrawerBroadcastReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
String action = intent.getAction();
if (action.equals("action.refreshDrawer")) {
refreshDrawer(null);
}
}
};
private void refreshDrawer(Bundle savedInstanceState){
try{
//Log.v("UserID", mSharedPreferences.getString("UserID", "0"));
if(!CarbonForumApplication.isLoggedIn()){ //未登录
//隐藏发帖按钮
mFloatingActionButton.setVisibility(View.INVISIBLE);
final IProfile profile = new ProfileDrawerItem()
.withName("Not logged in")
.withIcon(R.drawable.profile)
.withIdentifier(0);
// Create the AccountHeader
headerResult = new AccountHeaderBuilder()
.withActivity(this)
.withHeaderBackground(R.drawable.header)
.withSelectionListEnabledForSingleProfile(false)
.addProfiles(
profile
)
.withSavedInstance(savedInstanceState)
.build();
}else{ //已登录
//显示发帖按钮
mFloatingActionButton.setVisibility(View.VISIBLE);
final IProfile profile = new ProfileDrawerItem()
.withName(CarbonForumApplication.userInfo.getString("UserName", "lincanbin"))
.withEmail(CarbonForumApplication.userInfo.getString("UserMail", CarbonForumApplication.userInfo.getString("UserName", "lincanbin")))
.withIcon(Uri.parse(APIAddress.MIDDLE_AVATAR_URL(CarbonForumApplication.userInfo.getString("UserID", "0"), "large")))
.withIdentifier(Integer.parseInt(CarbonForumApplication.userInfo.getString("UserID", "0")));
// Create the AccountHeader
headerResult = new AccountHeaderBuilder()
.withActivity(this)
.withHeaderBackground(R.drawable.header)
.withSelectionListEnabledForSingleProfile(false)
//.withTranslucentStatusBar(false)
.addProfiles(
profile,
//don't ask but google uses 14dp for the add account icon in gmail but 20dp for the normal icons (like manage account)
new ProfileSettingDrawerItem()
.withName(getString(R.string.change_account))
.withIcon(GoogleMaterial.Icon.gmd_accounts)
.withOnDrawerItemClickListener(new Drawer.OnDrawerItemClickListener() {
@Override
public boolean onItemClick(View view, int position, IDrawerItem drawerItem) {
IndexActivity.this.startActivity(new Intent(IndexActivity.this, LoginActivity.class));
return false;
}
}),
new ProfileSettingDrawerItem()
.withName(getString(R.string.log_out))
.withIcon(GoogleMaterial.Icon.gmd_close)
.withOnDrawerItemClickListener(new Drawer.OnDrawerItemClickListener() {
@Override
public boolean onItemClick(View view, int position, IDrawerItem drawerItem) {
CarbonForumApplication.userInfo.edit().clear().apply();
refreshDrawer(null);
return false;
}
})
)
.withSavedInstance(savedInstanceState)
.build();
//开启推送
startService(new Intent(IndexActivity.this, PushService.class));
}
} catch (ClassCastException e) {
e.printStackTrace();
}
//Create the drawer
DrawerBuilder mDrawerBuilder = new DrawerBuilder()
.withActivity(this)
.withActionBarDrawerToggle(true)
.withToolbar(mToolbar)
.withHasStableIds(true)
.withAccountHeader(headerResult) //set the AccountHeader we created earlier for the header
.withSavedInstance(savedInstanceState)
.withShowDrawerOnFirstLaunch(true)
// .withTranslucentStatusBar(false)
.addDrawerItems(
new PrimaryDrawerItem().
withName(R.string.app_name).
withIcon(GoogleMaterial.Icon.gmd_home).
withSetSelected(true).
withIdentifier(1).
withSelectable(true),
new PrimaryDrawerItem().
withName(R.string.refresh).
withIcon(GoogleMaterial.Icon.gmd_refresh).
withIdentifier(2).
withSelectable(false),
new DividerDrawerItem()
) // add the items we want to use with our Drawer
.withOnDrawerItemClickListener(new Drawer.OnDrawerItemClickListener() {
@Override
public boolean onItemClick(View view, int position, IDrawerItem drawerItem) {
//check if the drawerItem is set.
//there are different reasons for the drawerItem to be null
//--> click on the header
//--> click on the footer
//those items don't contain a drawerItem
if (drawerItem != null) {
Intent intent = null;
if (drawerItem.getIdentifier() == 2) {
loadTopic(1, false);
} else if (drawerItem.getIdentifier() == 3) {
intent = new Intent(IndexActivity.this, LoginActivity.class);
} else if (drawerItem.getIdentifier() == 4) {
intent = new Intent(IndexActivity.this, RegisterActivity.class);
} else if (drawerItem.getIdentifier() == 5) {
intent = new Intent(IndexActivity.this, NotificationsActivity.class);
} else if (drawerItem.getIdentifier() == 6) {
intent = new Intent(IndexActivity.this, SettingsActivity.class);
}
if (intent != null) {
IndexActivity.this.startActivity(intent);
}
}
return false;
}
});
if(!CarbonForumApplication.isLoggedIn()) { //未登录
mDrawerBuilder.addDrawerItems(
new PrimaryDrawerItem().
withName(R.string.title_activity_login).
withIcon(GoogleMaterial.Icon.gmd_account).
withIdentifier(3).
withSelectable(false),
new PrimaryDrawerItem().
withName(R.string.title_activity_register).
withIcon(GoogleMaterial.Icon.gmd_account_add).
withIdentifier(4).
withSelectable(false)
);
}else{ //已登录
mDrawerBuilder.addDrawerItems(
new PrimaryDrawerItem()
.withName(R.string.title_activity_notifications)
.withIcon(GoogleMaterial.Icon.gmd_notifications)
.withIdentifier(5)
.withBadgeStyle(new BadgeStyle().withTextColor(Color.WHITE).withColorRes(R.color.md_red_700))
.withSelectable(false),
new PrimaryDrawerItem()
.withName(R.string.title_activity_settings)
.withIcon(GoogleMaterial.Icon.gmd_settings)
.withIdentifier(6)
.withSelectable(false)
);
}
mDrawer = mDrawerBuilder.build();
//if you have many different types of DrawerItems you can magically pre-cache those items to get a better scroll performance
//make sure to init the cache after the DrawerBuilder was created as this will first clear the cache to make sure no old elements are in
RecyclerViewCacheUtil.getInstance().withCacheSize(2).init(mDrawer);
//only set the active selection or active profile if we do not recreate the activity
if (savedInstanceState == null) {
// set the selection to the item with the identifier 1
mDrawer.setSelection(1, false);
//set the active profile
//headerResult.setActiveProfile(profile);
}
//TODO:根据消息数量刷新Notification
int notificationsNumber = Integer.parseInt(CarbonForumApplication.cacheSharedPreferences.getString("notificationsNumber", "0"));
if(notificationsNumber>0){
//添加消息通知
mDrawer.updateBadge(4, new StringHolder(notificationsNumber + ""));
}
}
//下拉刷新事件
@Override
public void onRefresh() {
//if(!mSwipeRefreshLayout.isRefreshing()){
loadTopic(1, false);
//}
}
@Override
protected void onPostCreate(Bundle savedInstanceState) {
super.onPostCreate(savedInstanceState);
// Sync the toggle state after onRestoreInstanceState has occurred.
}
@Override
public void onConfigurationChanged(Configuration newConfig) {
super.onConfigurationChanged(newConfig);
// Pass any configuration change to the drawer toggls
}
@Override
public void onBackPressed() {
//handle the back press :D close the drawer first and if the drawer is closed close the activity
if (mDrawer != null && mDrawer.isDrawerOpen()) {
mDrawer.closeDrawer();
} else {
super.onBackPressed();
}
}
public class GetTopicsTask extends AsyncTask<Void, Void, List<Map<String,Object>>> {
private int targetPage;
private Boolean enableCache;
private int positionStart;
public GetTopicsTask(int targetPage, Boolean enableCache) {
this.targetPage = targetPage;
this.enableCache = enableCache;
}
@Override
protected void onPreExecute() {
super.onPreExecute();
enableScrollListener = false;
if(enableCache){
topicList = JSONUtil.jsonObject2List(JSONUtil.jsonString2Object(
CarbonForumApplication.cacheSharedPreferences.getString("topicsCache", "{\"Status\":1, \"TopicsArray\":[]}"))
, "TopicsArray");
if(topicList != null){
mAdapter.setData(topicList);
mAdapter.notifyDataSetChanged();
}
}
mSwipeRefreshLayout.post(new Runnable(){
@Override
public void run(){
mSwipeRefreshLayout.setRefreshing(true);
}
});
//Toast.makeText(IndexActivity.this, "Before AsyncTask", Toast.LENGTH_SHORT).show();
}
@Override
protected void onPostExecute(List<Map<String, Object>> result) {
super.onPostExecute(result);
if(result!=null && !result.isEmpty()) {
if (targetPage > 1) {
positionStart = topicList.size() - 1;
topicList.addAll(result);
mAdapter.setData(topicList);
//局部刷新，更好的性能
mAdapter.notifyItemRangeChanged(positionStart, mAdapter.getItemCount());
} else {
topicList = result;
mAdapter.setData(topicList);
//全部刷新
mAdapter.notifyDataSetChanged();
}
//更新当前页数
currentPage = targetPage;
}else{
Snackbar.make(mFloatingActionButton, R.string.network_error, Snackbar.LENGTH_LONG).setAction("Action", null).show();
}
//移除刷新控件
mSwipeRefreshLayout.setRefreshing(false);
enableScrollListener = true;
//Toast.makeText(IndexActivity.this, "AsyncTask End", Toast.LENGTH_SHORT).show();
}
@Override
protected List<Map<String, Object>> doInBackground(Void... params) {
List<Map<String,Object>> list;
JSONObject jsonObject = HttpUtil.postRequest(IndexActivity.this, APIAddress.HOME_URL(targetPage), null, false, false);
//Log.v("JSON", str);
if(jsonObject != null){
try {
totalPage = jsonObject.getInt("TotalPage");
}catch(JSONException e){
e.printStackTrace();
}
if(targetPage == 1){
try {
SharedPreferences.Editor cacheEditor = CarbonForumApplication.cacheSharedPreferences.edit();
cacheEditor.putString("topicsCache", jsonObject.toString(0));
cacheEditor.apply();
}catch(Exception e){
e.printStackTrace();
}
}
}
list = JSONUtil.jsonObject2List(jsonObject, "TopicsArray");
//Log.v("List", list.toString());
return list;
}
}
}