BLog.java

package com.qmusic.uitls;

import java.io.File;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Locale;

import android.os.Environment;
import android.util.Log;

public class BLog {
	public static final int ALL = 6;
	public static final int VERBOSE = 5;
	public static final int DEBUG = 4;
	public static final int INFO = 3;
	public static final int WARN = 2;
	public static final int ERROR = 1;
	private static int DEBUG_LEVEL = 6;// set 0 to disable log

	public static void logToFile() {
		new Thread() {
			@Override
			public void run() {
				final SimpleDateFormat formater = new SimpleDateFormat("yyyy_MM_dd", Locale.US);
				final String logFileName = String.format("%s/Qmusic_%s.log", Environment.getExternalStorageDirectory(), formater.format(new Date()));
				CommandConsole commond = new CommandConsole();
				commond.sh().run("logcat -v threadtime ", new File(logFileName));
			}
		}.start();
	}

	/**
	 * This will duplicate the log if exit and re-login
	 */
	public static void logToFile2() {
		new Thread() {
			@Override
			public void run() {
				final SimpleDateFormat formater = new SimpleDateFormat("yyyy_MM_dd", Locale.US);
				final String logFileName = String.format("%s/Qmusic2_%s.log", Environment.getExternalStorageDirectory(), formater.format(new Date()));
				try {
					CommandConsole commond = new CommandConsole();
					Process process = commond.sh().run("logcat -v threadtime -f " + logFileName);
					process.waitFor();
				} catch (InterruptedException e) {
					e.printStackTrace();
				} catch (Throwable e) {
					e.printStackTrace();
				}
			}
		}.start();
	}

	public static void setLevel(int level) {
		DEBUG_LEVEL = level;
		logToFile();
		// logToFile2();
	}

	public static int v(String tag, String msg) {
		if (DEBUG_LEVEL > VERBOSE) {
			return Log.v(tag, msg);
		} else {
			return 0;
		}
	}

	public static int v(String tag, String msg, Throwable e) {
		if (DEBUG_LEVEL > VERBOSE) {
			return Log.v(tag, msg, e);
		} else {
			return 0;
		}
	}

	public static int d(String tag, String msg) {
		if (DEBUG_LEVEL > DEBUG) {
			return Log.d(tag, msg);
		} else {
			return 0;
		}
	}

	public static int d(String tag, String msg, Throwable e) {
		if (DEBUG_LEVEL > DEBUG) {
			return Log.d(tag, msg, e);
		} else {
			return 0;
		}
	}

	public static int i(String tag, String msg) {
		if (DEBUG_LEVEL > INFO) {
			return Log.i(tag, msg);
		} else {
			return 0;
		}
	}

	public static int i(String tag, String msg, Throwable e) {
		if (DEBUG_LEVEL > INFO) {
			return Log.i(tag, msg, e);
		} else {
			return 0;
		}
	}

	public static int w(String tag, String msg) {
		if (DEBUG_LEVEL > WARN) {
			return Log.w(tag, msg);
		} else {
			return 0;
		}
	}

	public static int w(String tag, String msg, Throwable e) {
		if (DEBUG_LEVEL > WARN) {
			return Log.w(tag, msg, e);
		} else {
			return 0;
		}
	}

	public static int e(String tag, String msg) {
		if (DEBUG_LEVEL > ERROR) {
			return Log.e(tag, msg);
		} else {
			return 0;
		}
	}

	public static int e(String tag, String msg, Throwable e) {
		if (DEBUG_LEVEL > ERROR) {
			return Log.e(tag, msg, e);
		} else {
			return 0;
		}
	}

	public static void v(String tag, String s, Object... args) {
		if (DEBUG_LEVEL > VERBOSE)
			Log.v(tag, String.format(s, args));
	}

	/**
	 * Debug log message with printf formatting.
	 * 
	 * @param tag
	 * @param s
	 * @param args
	 */
	public static void d(String tag, String s, Object... args) {
		if (DEBUG_LEVEL > DEBUG)
			Log.d(tag, String.format(s, args));
	}

	/**
	 * Info log message with printf formatting.
	 * 
	 * @param tag
	 * @param s
	 * @param args
	 */
	public static void i(String tag, String s, Object... args) {
		if (DEBUG_LEVEL > INFO)
			Log.i(tag, String.format(s, args));
	}

	/**
	 * Warning log message with printf formatting.
	 * 
	 * @param tag
	 * @param s
	 * @param args
	 */
	public static void w(String tag, String s, Object... args) {
		if (DEBUG_LEVEL > WARN)
			Log.w(tag, String.format(s, args));
	}

	/**
	 * Error log message with printf formatting.
	 * 
	 * @param tag
	 * @param s
	 * @param args
	 */
	public static void e(String tag, String s, Object... args) {
		if (DEBUG_LEVEL > ERROR)
			Log.e(tag, String.format(s, args));
	}
}