Java tutorial
/* * Copyright (c) 2015 IRCCloud, Ltd. * * 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 com.irccloud.android.activity; import android.content.ComponentName; import android.content.Intent; import android.content.SharedPreferences; import android.os.Bundle; import android.preference.PreferenceManager; import android.support.v4.app.NotificationManagerCompat; import android.support.v7.app.AppCompatActivity; import android.text.method.LinkMovementMethod; import android.view.KeyEvent; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.view.inputmethod.EditorInfo; import android.widget.BaseAdapter; import android.widget.EditText; import android.widget.ImageButton; import android.widget.ListView; import android.widget.TextView; import com.irccloud.android.CollapsedEventsList; import com.irccloud.android.ColorFormatter; import com.irccloud.android.IRCCloudApplication; import com.irccloud.android.Notifications; import com.irccloud.android.R; import com.irccloud.android.RemoteInputService; import com.irccloud.android.data.ServersDataSource; import org.json.JSONArray; import org.json.JSONException; import org.json.JSONObject; import java.text.SimpleDateFormat; import java.util.Calendar; public class QuickReplyActivity extends AppCompatActivity { int cid, bid; String to; SimpleDateFormat formatter = new SimpleDateFormat("h:mm a"); CollapsedEventsList collapsedEventsList = new CollapsedEventsList(); boolean nickColors; ServersDataSource.Server server; int timestamp_width = -1; private class MessagesAdapter extends BaseAdapter { private class ViewHolder { TextView timestamp; TextView message; } private JSONArray msgs = new JSONArray(); public void loadMessages(int cid, int bid) { JSONArray notifications; try { notifications = new JSONArray(PreferenceManager .getDefaultSharedPreferences(IRCCloudApplication.getInstance().getApplicationContext()) .getString("notifications_json", "[]")); } catch (JSONException e) { notifications = new JSONArray(); } msgs = new JSONArray(); try { for (int i = 0; i < notifications.length(); i++) { JSONObject n = notifications.getJSONObject(i); if (n.getInt("cid") == cid && n.getInt("bid") == bid) msgs.put(n); } } catch (JSONException e) { e.printStackTrace(); } notifyDataSetChanged(); } @Override public int getCount() { return msgs.length(); } @Override public Object getItem(int i) { try { return msgs.get(i); } catch (JSONException e) { e.printStackTrace(); } return null; } @Override public long getItemId(int i) { return i; } @Override public View getView(int i, View view, ViewGroup viewGroup) { View row = view; ViewHolder holder; if (row == null) { LayoutInflater inflater = getLayoutInflater(); row = inflater.inflate(R.layout.row_message, viewGroup, false); holder = new ViewHolder(); holder.timestamp = (TextView) row.findViewById(R.id.timestamp); holder.message = (TextView) row.findViewById(R.id.message); row.setTag(holder); } else { holder = (ViewHolder) row.getTag(); } try { JSONObject msg = msgs.getJSONObject(i); if (getWindowManager().getDefaultDisplay().getWidth() < 800) { holder.timestamp.setVisibility(View.GONE); } else { Calendar calendar = Calendar.getInstance(); calendar.setTimeInMillis(msg.getLong("eid") / 1000); if (timestamp_width == -1) { SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences( IRCCloudApplication.getInstance().getApplicationContext()); String s = "88:88 88"; if (prefs.getBoolean("time-24hr", false)) { if (prefs.getBoolean("time-seconds", false)) s = "88:88:88"; else s = "88:88"; } else if (prefs.getBoolean("time-seconds", false)) { s = "88:88:88 88"; } timestamp_width = (int) holder.timestamp.getPaint().measureText(s); } holder.timestamp.setMinWidth(timestamp_width); holder.timestamp.setText(formatter.format(calendar.getTime())); } holder.message.setText(ColorFormatter.html_to_spanned("<b>" + ColorFormatter.irc_to_html( collapsedEventsList.formatNick(msg.getString("nick"), null, nickColors)) + "</b> " + msg.getString("message"), true, server)); holder.message.setMovementMethod(LinkMovementMethod.getInstance()); holder.message.setLinkTextColor(getResources().getColor(R.color.linkColor)); } catch (JSONException e) { e.printStackTrace(); } return row; } } private MessagesAdapter adapter = new MessagesAdapter(); private SharedPreferences.OnSharedPreferenceChangeListener prefslistener = new SharedPreferences.OnSharedPreferenceChangeListener() { @Override public void onSharedPreferenceChanged(SharedPreferences sharedPreferences, String s) { adapter.loadMessages(cid, bid); } }; @Override protected void onNewIntent(Intent intent) { super.onNewIntent(intent); cid = intent.getIntExtra("cid", -1); bid = intent.getIntExtra("bid", -1); to = intent.getStringExtra("to"); server = new ServersDataSource.Server(); server.cid = cid; setTitle("Reply to " + to + " (" + intent.getStringExtra("network") + ")"); } @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_quick_reply); if (getIntent().hasExtra("cid") && getIntent().hasExtra("bid")) { onNewIntent(getIntent()); } else { finish(); return; } final ImageButton send = (ImageButton) findViewById(R.id.sendBtn); final EditText message = (EditText) findViewById(R.id.messageTxt); message.setOnEditorActionListener(new TextView.OnEditorActionListener() { @Override public boolean onEditorAction(TextView textView, int actionId, KeyEvent keyEvent) { if (actionId == EditorInfo.IME_ACTION_SEND && message.getText() != null && message.getText().length() > 0) send.performClick(); return true; } }); message.setOnKeyListener(new View.OnKeyListener() { @Override public boolean onKey(View view, int keyCode, KeyEvent event) { if (event.getAction() == KeyEvent.ACTION_DOWN && keyCode == KeyEvent.KEYCODE_ENTER && message.getText() != null && message.getText().length() > 0) send.performClick(); return false; } }); send.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { if (message.getText() != null && message.getText().length() > 0) { Intent i = new Intent(RemoteInputService.ACTION_REPLY); i.setComponent(new ComponentName(getPackageName(), RemoteInputService.class.getName())); i.putExtras(getIntent()); i.putExtra("reply", message.getText().toString()); startService(i); finish(); } } }); ListView listView = (ListView) findViewById(R.id.conversation); listView.setAdapter(adapter); } @Override protected void onResume() { super.onResume(); SharedPreferences prefs = PreferenceManager .getDefaultSharedPreferences(IRCCloudApplication.getInstance().getApplicationContext()); prefs.registerOnSharedPreferenceChangeListener(prefslistener); nickColors = prefs.getBoolean("nick-colors", false); if (prefs.getBoolean("time-24hr", false)) { if (prefs.getBoolean("time-seconds", false)) formatter = new SimpleDateFormat("H:mm:ss"); else formatter = new SimpleDateFormat("H:mm"); } else if (prefs.getBoolean("time-seconds", false)) { formatter = new SimpleDateFormat("h:mm:ss a"); } adapter.loadMessages(cid, bid); NotificationManagerCompat.from(this).cancel(bid); Notifications.getInstance().excludeBid(bid); } @Override protected void onPause() { super.onPause(); PreferenceManager.getDefaultSharedPreferences(IRCCloudApplication.getInstance().getApplicationContext()) .unregisterOnSharedPreferenceChangeListener(prefslistener); Notifications.getInstance().excludeBid(-1); } }