1 /* 2 * Copyright 2013 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.basicgesturedetect; 18 19 import android.graphics.Color; 20 import android.os.Bundle; 21 import android.support.v4.app.FragmentTransaction; 22 import android.view.Menu; 23 24 import com.example.android.common.activities.SampleActivityBase; 25 import com.example.android.common.logger.Log; 26 import com.example.android.common.logger.LogFragment; 27 import com.example.android.common.logger.LogWrapper; 28 import com.example.android.common.logger.MessageOnlyLogFilter; 29 30 /** 31 * A simple launcher activity containing a summary sample description 32 * and a few action bar buttons. 33 */ 34 public class MainActivity extends SampleActivityBase { 35 36 public static final String TAG = "MainActivity"; 37 38 public static final String FRAGTAG = "BasicGestureDetectFragment"; 39 40 @Override onCreate(Bundle savedInstanceState)41 protected void onCreate(Bundle savedInstanceState) { 42 super.onCreate(savedInstanceState); 43 setContentView(R.layout.activity_main); 44 45 if (getSupportFragmentManager().findFragmentByTag(FRAGTAG) == null ) { 46 FragmentTransaction transaction = getSupportFragmentManager().beginTransaction(); 47 BasicGestureDetectFragment fragment = new BasicGestureDetectFragment(); 48 transaction.add(fragment, FRAGTAG); 49 transaction.commit(); 50 } 51 } 52 53 @Override onCreateOptionsMenu(Menu menu)54 public boolean onCreateOptionsMenu(Menu menu) { 55 getMenuInflater().inflate(R.menu.main, menu); 56 return true; 57 } 58 59 /** Create a chain of targets that will receive log data */ 60 @Override initializeLogging()61 public void initializeLogging() { 62 // Wraps Android's native log framework. 63 LogWrapper logWrapper = new LogWrapper(); 64 // Using Log, front-end to the logging chain, emulates android.util.log method signatures. 65 Log.setLogNode(logWrapper); 66 67 // Filter strips out everything except the message text. 68 MessageOnlyLogFilter msgFilter = new MessageOnlyLogFilter(); 69 logWrapper.setNext(msgFilter); 70 71 // On screen logging via a fragment with a TextView. 72 LogFragment logFragment = (LogFragment) getSupportFragmentManager() 73 .findFragmentById(R.id.log_fragment); 74 msgFilter.setNext(logFragment.getLogView()); 75 logFragment.getLogView().setTextAppearance(this, R.style.Log); 76 logFragment.getLogView().setBackgroundColor(Color.WHITE); 77 78 79 Log.i(TAG, "Ready"); 80 } 81 } 82