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.common.logger; 18 19 import android.graphics.Typeface; 20 import android.os.Bundle; 21 import android.support.v4.app.Fragment; 22 import android.text.Editable; 23 import android.text.TextWatcher; 24 import android.view.Gravity; 25 import android.view.LayoutInflater; 26 import android.view.View; 27 import android.view.ViewGroup; 28 import android.widget.ScrollView; 29 30 /** 31 * Simple fragment which contains a LogView and uses is to output log data it receives 32 * through the LogNode interface. 33 */ 34 public class LogFragment extends Fragment { 35 36 private LogView mLogView; 37 private ScrollView mScrollView; 38 LogFragment()39 public LogFragment() {} 40 inflateViews()41 public View inflateViews() { 42 mScrollView = new ScrollView(getActivity()); 43 ViewGroup.LayoutParams scrollParams = new ViewGroup.LayoutParams( 44 ViewGroup.LayoutParams.MATCH_PARENT, 45 ViewGroup.LayoutParams.MATCH_PARENT); 46 mScrollView.setLayoutParams(scrollParams); 47 48 mLogView = new LogView(getActivity()); 49 ViewGroup.LayoutParams logParams = new ViewGroup.LayoutParams(scrollParams); 50 logParams.height = ViewGroup.LayoutParams.WRAP_CONTENT; 51 mLogView.setLayoutParams(logParams); 52 mLogView.setClickable(true); 53 mLogView.setFocusable(true); 54 mLogView.setTypeface(Typeface.MONOSPACE); 55 56 // Want to set padding as 16 dips, setPadding takes pixels. Hooray math! 57 int paddingDips = 16; 58 double scale = getResources().getDisplayMetrics().density; 59 int paddingPixels = (int) ((paddingDips * (scale)) + .5); 60 mLogView.setPadding(paddingPixels, paddingPixels, paddingPixels, paddingPixels); 61 mLogView.setCompoundDrawablePadding(paddingPixels); 62 63 mLogView.setGravity(Gravity.BOTTOM); 64 mLogView.setTextAppearance(getActivity(), android.R.style.TextAppearance_Holo_Medium); 65 66 mScrollView.addView(mLogView); 67 return mScrollView; 68 } 69 70 @Override onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState)71 public View onCreateView(LayoutInflater inflater, ViewGroup container, 72 Bundle savedInstanceState) { 73 74 View result = inflateViews(); 75 76 mLogView.addTextChangedListener(new TextWatcher() { 77 @Override 78 public void beforeTextChanged(CharSequence s, int start, int count, int after) {} 79 80 @Override 81 public void onTextChanged(CharSequence s, int start, int before, int count) {} 82 83 @Override 84 public void afterTextChanged(Editable s) { 85 mScrollView.fullScroll(ScrollView.FOCUS_DOWN); 86 } 87 }); 88 return result; 89 } 90 getLogView()91 public LogView getLogView() { 92 return mLogView; 93 } 94 }