/*
* Copyright (C) 2016 Tielei Zhang (zhangtielei.com).
*
* 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.zhangtielei.demos.async.programming.common.utils;
import android.widget.TextView;
import java.text.SimpleDateFormat;
import java.util.Date;
/**
* Created by Tielei Zhang on 16/8/16.
* 一个工具类, 用于在页面上打印日志.
*/
public class TextLogUtil {
/**
* 在一个TextView上追加一行日志.
* @param logTextView
* @param log
*/
public static void println(TextView logTextView, CharSequence log) {
SimpleDateFormat sdf = new SimpleDateFormat("HH:mm:ss.SSS");
String timestamp = sdf.format(new Date());
CharSequence newText = timestamp + ": " + log;
CharSequence oldText = logTextView.getText();
if (oldText == null || oldText.length() <= 0) {
logTextView.setText(newText);
}
else {
logTextView.setText(oldText + "\n" + newText);
}
}
}
