1 /* 2 * Copyright (C) 2014 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.example.android.messagingservice; 18 19 import android.app.Fragment; 20 import android.content.ComponentName; 21 import android.content.Context; 22 import android.content.Intent; 23 import android.content.ServiceConnection; 24 import android.content.SharedPreferences; 25 import android.os.Bundle; 26 import android.os.IBinder; 27 import android.os.Message; 28 import android.os.Messenger; 29 import android.os.RemoteException; 30 import android.text.method.ScrollingMovementMethod; 31 import android.util.Log; 32 import android.view.LayoutInflater; 33 import android.view.View; 34 import android.view.ViewGroup; 35 import android.widget.Button; 36 import android.widget.TextView; 37 38 /** 39 * The main fragment that shows the buttons and the text view containing the log. 40 */ 41 public class MessagingFragment extends Fragment implements View.OnClickListener { 42 43 private static final String TAG = MessagingFragment.class.getSimpleName(); 44 45 private Button mSendSingleConversation; 46 private Button mSendTwoConversations; 47 private Button mSendConversationWithThreeMessages; 48 private TextView mDataPortView; 49 private Button mClearLogButton; 50 51 private Messenger mService; 52 private boolean mBound; 53 54 private final ServiceConnection mConnection = new ServiceConnection() { 55 @Override 56 public void onServiceConnected(ComponentName componentName, IBinder service) { 57 mService = new Messenger(service); 58 mBound = true; 59 setButtonsState(true); 60 } 61 62 @Override 63 public void onServiceDisconnected(ComponentName componentName) { 64 mService = null; 65 mBound = false; 66 setButtonsState(false); 67 } 68 }; 69 70 private final SharedPreferences.OnSharedPreferenceChangeListener listener = 71 new SharedPreferences.OnSharedPreferenceChangeListener() { 72 @Override 73 public void onSharedPreferenceChanged(SharedPreferences sharedPreferences, String key) { 74 if (MessageLogger.LOG_KEY.equals(key)) { 75 mDataPortView.setText(MessageLogger.getAllMessages(getActivity())); 76 } 77 } 78 }; 79 MessagingFragment()80 public MessagingFragment() { 81 } 82 83 @Override onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState)84 public View onCreateView(LayoutInflater inflater, ViewGroup container, 85 Bundle savedInstanceState) { 86 View rootView = inflater.inflate(R.layout.fragment_message_me, container, false); 87 88 mSendSingleConversation = (Button) rootView.findViewById(R.id.send_1_conversation); 89 mSendSingleConversation.setOnClickListener(this); 90 91 mSendTwoConversations = (Button) rootView.findViewById(R.id.send_2_conversations); 92 mSendTwoConversations.setOnClickListener(this); 93 94 mSendConversationWithThreeMessages = 95 (Button) rootView.findViewById(R.id.send_1_conversation_3_messages); 96 mSendConversationWithThreeMessages.setOnClickListener(this); 97 98 mDataPortView = (TextView) rootView.findViewById(R.id.data_port); 99 mDataPortView.setMovementMethod(new ScrollingMovementMethod()); 100 101 mClearLogButton = (Button) rootView.findViewById(R.id.clear); 102 mClearLogButton.setOnClickListener(this); 103 104 setButtonsState(false); 105 106 return rootView; 107 } 108 109 @Override onClick(View view)110 public void onClick(View view) { 111 if (view == mSendSingleConversation) { 112 sendMsg(1, 1); 113 } else if (view == mSendTwoConversations) { 114 sendMsg(2, 1); 115 } else if (view == mSendConversationWithThreeMessages) { 116 sendMsg(1, 3); 117 } else if (view == mClearLogButton) { 118 MessageLogger.clear(getActivity()); 119 mDataPortView.setText(MessageLogger.getAllMessages(getActivity())); 120 } 121 } 122 123 @Override onStart()124 public void onStart() { 125 super.onStart(); 126 getActivity().bindService(new Intent(getActivity(), MessagingService.class), mConnection, 127 Context.BIND_AUTO_CREATE); 128 } 129 130 @Override onPause()131 public void onPause() { 132 super.onPause(); 133 MessageLogger.getPrefs(getActivity()).unregisterOnSharedPreferenceChangeListener(listener); 134 } 135 136 @Override onResume()137 public void onResume() { 138 super.onResume(); 139 mDataPortView.setText(MessageLogger.getAllMessages(getActivity())); 140 MessageLogger.getPrefs(getActivity()).registerOnSharedPreferenceChangeListener(listener); 141 } 142 143 @Override onStop()144 public void onStop() { 145 super.onStop(); 146 if (mBound) { 147 getActivity().unbindService(mConnection); 148 mBound = false; 149 } 150 } 151 sendMsg(int howManyConversations, int messagesPerConversation)152 private void sendMsg(int howManyConversations, int messagesPerConversation) { 153 if (mBound) { 154 Message msg = Message.obtain(null, MessagingService.MSG_SEND_NOTIFICATION, 155 howManyConversations, messagesPerConversation); 156 try { 157 mService.send(msg); 158 } catch (RemoteException e) { 159 Log.e(TAG, "Error sending a message", e); 160 MessageLogger.logMessage(getActivity(), "Error occurred while sending a message."); 161 } 162 } 163 } 164 setButtonsState(boolean enable)165 private void setButtonsState(boolean enable) { 166 mSendSingleConversation.setEnabled(enable); 167 mSendTwoConversations.setEnabled(enable); 168 mSendConversationWithThreeMessages.setEnabled(enable); 169 } 170 } 171