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 18 package com.example.android.basicgesturedetect; 19 20 import android.graphics.Color; 21 import android.os.Bundle; 22 import android.support.v4.app.FragmentTransaction; 23 import android.view.Menu; 24 25 import com.example.android.common.activities.SampleActivityBase; 26 import com.example.android.common.logger.Log; 27 import com.example.android.common.logger.LogFragment; 28 import com.example.android.common.logger.LogWrapper; 29 import com.example.android.common.logger.MessageOnlyLogFilter; 30 31 /** 32 * A simple launcher activity containing a summary sample description 33 * and a few action bar buttons. 34 */ 35 public class MainActivity extends SampleActivityBase { 36 37 public static final String TAG = "MainActivity"; 38 39 public static final String FRAGTAG = "BasicGestureDetectFragment"; 40 41 @Override onCreate(Bundle savedInstanceState)42 protected void onCreate(Bundle savedInstanceState) { 43 super.onCreate(savedInstanceState); 44 setContentView(R.layout.activity_main); 45 46 if (getSupportFragmentManager().findFragmentByTag(FRAGTAG) == null ) { 47 FragmentTransaction transaction = getSupportFragmentManager().beginTransaction(); 48 BasicGestureDetectFragment fragment = new BasicGestureDetectFragment(); 49 transaction.add(fragment, FRAGTAG); 50 transaction.commit(); 51 } 52 } 53 54 @Override onCreateOptionsMenu(Menu menu)55 public boolean onCreateOptionsMenu(Menu menu) { 56 getMenuInflater().inflate(R.menu.main, menu); 57 return true; 58 } 59 60 /** Create a chain of targets that will receive log data */ 61 @Override initializeLogging()62 public void initializeLogging() { 63 // Wraps Android's native log framework. 64 LogWrapper logWrapper = new LogWrapper(); 65 // Using Log, front-end to the logging chain, emulates android.util.log method signatures. 66 Log.setLogNode(logWrapper); 67 68 // Filter strips out everything except the message text. 69 MessageOnlyLogFilter msgFilter = new MessageOnlyLogFilter(); 70 logWrapper.setNext(msgFilter); 71 72 // On screen logging via a fragment with a TextView. 73 LogFragment logFragment = (LogFragment) getSupportFragmentManager() 74 .findFragmentById(R.id.log_fragment); 75 msgFilter.setNext(logFragment.getLogView()); 76 logFragment.getLogView().setTextAppearance(this, R.style.Log); 77 logFragment.getLogView().setBackgroundColor(Color.WHITE); 78 79 80 Log.i(TAG, "Ready"); 81 } 82 } 83