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上传时间: 2013-09-05
详细说明： andbatdog电池监控/******************************************************************************* * Copyright (c) 2009 Ferenc Hechler - ferenc_hechler@users.sourceforge.net * * This file is part of the Android Battery Dog * * The Android Battery Dog is free software; * you can redistribute it and/or modify it under the terms of the GNU * General Public License as published by the Free Software Foundation; * either version 2 of the License, or (at your option) any later version. * * The Android Battery Dog is distributed * in the hope that it will be useful, but WITHOUT ANY WARRANTY; without * even the implied warranty of MERCHANTABILITY or FITNESS FOR A * PARTICULAR PURPOSE. See the GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with the Android Battery Dog; * if not, write to the Free Software Foundation, Inc., * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * *******************************************************************************/ package net.sf.andbatdog.batterydog; import java.io.BufferedReader; import java.io.File; import java.io.FileReader; import java.text.DecimalFormat; import java.text.SimpleDateFormat; import java.util.Date; import android.app.Activity; import android.content.Intent; import android.os.Bundle; import android.os.Environment; import android.view.View; import android.view.View.OnClickListener; import android.widget.Button; import android.widget.EditText; import android.widget.Toast; public class BatteryDog extends Activity { private static final int OUTPUT_LINES = 100; private static final int LINE_LENGTH = 50; private static final String TAG = "BATDOG"; private Button btStart; private Button btStop; private Button btRawFormat; private Button btShowFormated; private Button btGraph; private EditText mOutput; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.battery_dog); mOutput= (EditText) findViewById(R.id.output); // find buttons in view btStart = ((Button) findViewById(R.id.btStart)); btStop = ((Button) findViewById(R.id.btStop)); btRawFormat= ((Button) findViewById(R.id.btRawFormat)); btShowFormated= ((Button) findViewById(R.id.btShowFormated)); btGraph = ((Button) findViewById(R.id.btGraph)); // set actions for buttons btStart.setOnClickListener(StartServiceListener); btStop.setOnClickListener(StopServiceListener); btRawFormat.setOnClickListener(RawFormatListener); btShowFormated.setOnClickListener(ShowFormatedListener); btGraph.setOnClickListener(GraphListener); } OnClickListener StartServiceListener = new OnClickListener() { public void onClick(View v) { try { startService(new Intent(BatteryDog.this, BatteryDog_Service.class)); } catch (Exception e) { Log.e(TAG, e.getMessage(), e); Toast.makeText(BatteryDog.this, "Start Service failed: "+e.getMessage(), Toast.LENGTH_SHORT).show(); } } }; OnClickListener StopServiceListener = new OnClickListener() { public void onClick(View v) { try { stopService(new Intent(BatteryDog.this, BatteryDog_Service.class)); } catch (Exception e) { Log.e(TAG, e.getMessage(), e); Toast.makeText(BatteryDog.this, "Stop Service failed: "+e.getMessage(), Toast.LENGTH_SHORT).show(); } } }; OnClickListener RawFormatListener = new OnClickListener() { public void onClick(View v) { updateLog(false); } }; OnClickListener ShowFormatedListener = new OnClickListener() { public void onClick(View v) { updateLog(true); } }; OnClickListener GraphListener = new OnClickListener() { public void onClick(View v) { startActivity(new Intent(BatteryDog.this, BatteryGraph.class)); } }; private void updateLog(boolean doFormat) { try { File root = Environment.getExternalStorageDirectory(); if (root == null) throw new Exception("external storage dir not found"); File batteryLogFile = new File(root,BatteryDog_Service.LOGFILEPATH); if (!batteryLogFile.exists()) throw new Exception("logfile '"+batteryLogFile+"' not found"); if (!batteryLogFile.canRead()) throw new Exception("logfile '"+batteryLogFile+"' not readable"); long len = batteryLogFile.length(); int size = (int)Math.min((long)OUTPUT_LINES*LINE_LENGTH, len); StringBuffer text = new StringBuffer(size); FileReader reader = new FileReader(batteryLogFile); BufferedReader in = new BufferedReader(reader); if (doFormat) { text.append(in.readLine()).append("\n"); } if (len > OUTPUT_LINES*LINE_LENGTH) { in.skip(len-OUTPUT_LINES*LINE_LENGTH); // skip incomplete line in.readLine(); } String line = in.readLine(); while (line != null) { if (doFormat) { line = parseLine(line); } if (line != null) text.append(line).append("\n"); line = in.readLine(); } in.close(); mOutput.setText(text.toString()); } catch (Exception e) { Log.e(TAG,e.getMessage(),e); mOutput.setText(e.getMessage()); } } private SimpleDateFormat sdf = new SimpleDateFormat("HH:mm:ss"); private DecimalFormat dfT = new DecimalFormat("###.#"); private DecimalFormat dfV = new DecimalFormat("##.###"); private String parseLine(String line) { if (line == null) return line; String[] split = line.split("[;]"); if (split.length < 6) return line; if (split[0].equals("Nr")) return line; try { int count = Integer.parseInt(split[0]); long time = Long.parseLong(split[1]); int level = Integer.parseInt(split[2]); int scale = Integer.parseInt(split[3]); int percent = level*100/scale; int voltage = Integer.parseInt(split[4]); int temperature = Integer.parseInt(split[5]); double v = 0.001*voltage; double t = 0.1*temperature; String timestamp = sdf.format(new Date(time)); StringBuffer result = new StringBuffer(); result.append(Integer.toString(count)).append(". ") .append(timestamp).append(" ") .append(percent).append("% ") .append(dfV.format(v)).append("V ") .append(dfT.format(t)).append("?") ; // for (int i = 6; i < split.length; i++) { // result.append(" ").append(split[i]); // } return result.toString(); } catch (Exception e) { Log.e(TAG, e.getMessage(), e); return line; } } } ...展开收缩
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