Java tutorial
/* * Copyright 2013 The Android Open Source Project * * 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.example.android.classical; import android.bluetooth.BluetoothDevice; import android.content.BroadcastReceiver; import android.content.Context; import android.content.Intent; import android.content.IntentFilter; import android.net.wifi.WifiManager; import android.os.Bundle; import android.support.v4.app.FragmentTransaction; import android.view.Menu; import android.view.MenuItem; import android.widget.ViewAnimator; import com.example.android.bluetoothchat.R; import com.example.android.bluetoothchat.TaskIntentService; import com.example.android.common.activities.SampleActivityBase; import com.example.android.common.logger.Log; import com.example.android.common.logger.LogFragment; import com.example.android.common.logger.LogWrapper; import com.example.android.common.logger.MessageOnlyLogFilter; import com.example.android.model.EventType; import com.example.android.model.GlobalVar; import com.example.android.model.MessageType; /** * A simple launcher activity containing a summary sample description, sample log and a custom * {@link android.support.v4.app.Fragment} which can display a view. * <p> * For devices with displays with a width of 720dp or greater, the sample log is always visible, * on other devices it's visibility is controlled by an item on the Action Bar. */ public class MainActivity extends SampleActivityBase { public static final String TAG = "MainActivity"; // Whether the Log Fragment is currently shown private boolean mLogShown; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); WifiManager wm = (WifiManager) getSystemService(Context.WIFI_SERVICE); GlobalVar.currentDeviceMacAddress = wm.getConnectionInfo().getMacAddress(); IntentFilter intentFilter = new IntentFilter(BluetoothDevice.ACTION_ACL_CONNECTED); registerReceiver(mReceiver, intentFilter); intentFilter = new IntentFilter(BluetoothDevice.ACTION_ACL_DISCONNECTED); registerReceiver(mReceiver, intentFilter); intentFilter = new IntentFilter(BluetoothDevice.ACTION_FOUND); registerReceiver(mReceiver, intentFilter); if (savedInstanceState == null) { FragmentTransaction transaction = getSupportFragmentManager().beginTransaction(); BluetoothChatFragment fragment = new BluetoothChatFragment(); transaction.replace(R.id.sample_content_fragment, fragment); transaction.commit(); } //new Thread(){ // @Override public void run() { // while(true) { // Intent intentService = new Intent(MainActivity.this, TaskIntentService.class); // intentService.putExtra(TaskIntentService.MESSAGE_TYPE, MessageType.toInt(MessageType.BALL_EVENT)); // intentService.putExtra(TaskIntentService.EVENT_TYPE, EventType.BALL_CONNECTED); // startService(intentService); // SystemClock.sleep(2000); // } // } //}.start(); } @Override public boolean onCreateOptionsMenu(Menu menu) { getMenuInflater().inflate(R.menu.main, menu); return true; } @Override public boolean onPrepareOptionsMenu(Menu menu) { MenuItem logToggle = menu.findItem(R.id.menu_toggle_log); logToggle.setVisible(findViewById(R.id.sample_output) instanceof ViewAnimator); logToggle.setTitle(mLogShown ? R.string.sample_hide_log : R.string.sample_show_log); return super.onPrepareOptionsMenu(menu); } @Override public boolean onOptionsItemSelected(MenuItem item) { switch (item.getItemId()) { case R.id.menu_toggle_log: mLogShown = !mLogShown; ViewAnimator output = (ViewAnimator) findViewById(R.id.sample_output); if (mLogShown) { output.setDisplayedChild(1); } else { output.setDisplayedChild(0); } supportInvalidateOptionsMenu(); return true; } return super.onOptionsItemSelected(item); } /** Create a chain of targets that will receive log data */ @Override public void initializeLogging() { // Wraps Android's native log framework. LogWrapper logWrapper = new LogWrapper(); // Using Log, front-end to the logging chain, emulates android.util.log method signatures. Log.setLogNode(logWrapper); // Filter strips out everything except the message text. MessageOnlyLogFilter msgFilter = new MessageOnlyLogFilter(); logWrapper.setNext(msgFilter); // On screen logging via a fragment with a TextView. LogFragment logFragment = (LogFragment) getSupportFragmentManager().findFragmentById(R.id.log_fragment); msgFilter.setNext(logFragment.getLogView()); Log.i(TAG, "Ready"); } private final BroadcastReceiver mReceiver = new BroadcastReceiver() { @Override public void onReceive(Context context, Intent intent) { Intent intentService; switch (intent.getAction()) { case BluetoothDevice.ACTION_ACL_CONNECTED: intentService = new Intent(context, TaskIntentService.class); intentService.putExtra(TaskIntentService.MESSAGE_TYPE, MessageType.toInt(MessageType.BALL_EVENT)); intentService.putExtra(TaskIntentService.EVENT_TYPE, EventType.BALL_CONNECTED); context.startService(intentService); Log.d(TAG, "bluetoothdevice bluetooth connected"); break; case BluetoothDevice.ACTION_ACL_DISCONNECTED: intentService = new Intent(context, TaskIntentService.class); intentService.putExtra(TaskIntentService.MESSAGE_TYPE, MessageType.toInt(MessageType.BALL_EVENT)); intentService.putExtra(TaskIntentService.EVENT_TYPE, EventType.BALL_DISCONNECTED); context.startService(intentService); Log.d(TAG, "bluetoothdevice bluetooth disconnected"); break; case BluetoothDevice.ACTION_FOUND: Log.d(TAG, "bluetoothdevice bluetooth found"); break; } } }; }