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 * Copyright 2013 The Android Open Source Project
18 *
19 * Licensed under the Apache License, Version 2.0 (the "License");
20 * you may not use this file except in compliance with the License.
21 * You may obtain a copy of the License at
22 *
23 *     http://www.apache.org/licenses/LICENSE-2.0
24 *
25 * Unless required by applicable law or agreed to in writing, software
26 * distributed under the License is distributed on an "AS IS" BASIS,
27 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
28 * See the License for the specific language governing permissions and
29 * limitations under the License.
30 */
31
32package com.example.android.common.logger;
33
34import android.graphics.Typeface;
35import android.os.Bundle;
36import android.support.v4.app.Fragment;
37import android.text.Editable;
38import android.text.TextWatcher;
39import android.view.Gravity;
40import android.view.LayoutInflater;
41import android.view.View;
42import android.view.ViewGroup;
43import android.widget.ScrollView;
44
45/**
46 * Simple fraggment which contains a LogView and uses is to output log data it receives
47 * through the LogNode interface.
48 */
49public class LogFragment extends Fragment {
50
51    private LogView mLogView;
52    private ScrollView mScrollView;
53
54    public LogFragment() {}
55
56    public View inflateViews() {
57        mScrollView = new ScrollView(getActivity());
58        ViewGroup.LayoutParams scrollParams = new ViewGroup.LayoutParams(
59                ViewGroup.LayoutParams.MATCH_PARENT,
60                ViewGroup.LayoutParams.MATCH_PARENT);
61        mScrollView.setLayoutParams(scrollParams);
62
63        mLogView = new LogView(getActivity());
64        ViewGroup.LayoutParams logParams = new ViewGroup.LayoutParams(scrollParams);
65        logParams.height = ViewGroup.LayoutParams.WRAP_CONTENT;
66        mLogView.setLayoutParams(logParams);
67        mLogView.setClickable(true);
68        mLogView.setFocusable(true);
69        mLogView.setTypeface(Typeface.MONOSPACE);
70
71        // Want to set padding as 16 dips, setPadding takes pixels.  Hooray math!
72        int paddingDips = 16;
73        double scale = getResources().getDisplayMetrics().density;
74        int paddingPixels = (int) ((paddingDips * (scale)) + .5);
75        mLogView.setPadding(paddingPixels, paddingPixels, paddingPixels, paddingPixels);
76        mLogView.setCompoundDrawablePadding(paddingPixels);
77
78        mLogView.setGravity(Gravity.BOTTOM);
79        mLogView.setTextAppearance(getActivity(), android.R.style.TextAppearance_Holo_Medium);
80
81        mScrollView.addView(mLogView);
82        return mScrollView;
83    }
84
85    @Override
86    public View onCreateView(LayoutInflater inflater, ViewGroup container,
87                             Bundle savedInstanceState) {
88
89        View result = inflateViews();
90
91        mLogView.addTextChangedListener(new TextWatcher() {
92            @Override
93            public void beforeTextChanged(CharSequence s, int start, int count, int after) {}
94
95            @Override
96            public void onTextChanged(CharSequence s, int start, int before, int count) {}
97
98            @Override
99            public void afterTextChanged(Editable s) {
100                mScrollView.fullScroll(ScrollView.FOCUS_DOWN);
101            }
102        });
103        return result;
104    }
105
106    public LogView getLogView() {
107        return mLogView;
108    }
109}