Android will use debug log information to save in SD card method _android

The

Writes the debug information that you applied to the SD card.

Package com.sdmc.hotel.util; 
Import Java.io.BufferedReader; 
Import Java.io.File; 
Import java.io.FileNotFoundException; 
Import Java.io.FileOutputStream; 
Import java.io.IOException; 
Import Java.io.InputStreamReader; 
Import Android.content.Context; 
Import android.os.Environment;
Import Android.util.Log; /** * Log Statistics Save * will print i,e,w, will not print d * each time the application, will be the last log information cover * @author WAY * * * * * * public class Logcathelper {private stat 
IC Logcathelper INSTANCE = null; 
private static String Path_logcat; 
Private Logdumper mlogdumper = null; 
private int mPId; /** * * * Initialization directory * */public void init (context context) {if (Environment.getexternalstoragestate (). Equals (environm Ent. media_mounted)) {///priority saved to SD card Path_logcat = Environment.getexternalstoragedirectory (). GetAbsolutePath () + 
File.separator + "Minigps"; 
else {//If the SD card does not exist, save it to the directory in this application Path_logcat = Context.getfilesdir (). GetAbsolutePath () + File.separator + "Minigps"; 
File File = new file (PATH_LOGCAT); if (!file.exists ()) {file.mkdirs (); }} public static Logcathelper getinstance {if (INSTANCE = = null) {INSTANCE = new Logcathelper (cont 
EXT); 
return INSTANCE; 
Private Logcathelper {init (context); 
MPId = Android.os.Process.myPid (); 
public void Start () {if (Mlogdumper = null) {Mlogdumper = new Logdumper (string.valueof (mPId), path_logcat); 
} log.i ("path", Path_logcat);///storage/sdcard0/minigps Mlogdumper.start (); 
public void Stop () {if (mlogdumper!= null) {mlogdumper.stoplogs (); 
Mlogdumper = null; 
} private class Logdumper extends Thread {private Process logcatproc; 
Private BufferedReader mreader = null; 
Private Boolean mrunning = true; 
String cmds = null; 
Private String MPID; 
Private FileOutputStream out = null; 
Public Logdumper (String pid, string dir) {MPID = pid; 
try {out = new FileOutputStream (New File (dir, "gps-" + mydate.getfilename () + ". Log")); catch (FileNotFoundException e) {//TODO auto-generated CatCH Block e.printstacktrace (); 
/** * * Log level: *:V, *:d, *:w, *:e, *:f, *:s * * Displays the log of E and W levels for the current MPID program. * * *//Cmds = "Logcat *:e *:w | 
grep \ "(" + MPID + ") \" "; Cmds = "Logcat | grep \ "(" + MPID + ") \" ";//Print all log information//Cmds =" logcat-s way ";//Print label filter information Cmds =" Logcat *:e *:i | 
grep \ "(" + MPID + ") \" ";//will print i,e,w and will not print D} public void Stoplogs () {mrunning = false; 
@Override public void Run () {try {Logcatproc = Runtime.getruntime (). exec (CMDS); 
Mreader = new BufferedReader (New InputStreamReader (Logcatproc.getinputstream ()), 1024); 
String line = null; 
while (mrunning && [line = Mreader.readline ())!= null] {if (!mrunning) {break; 
} if (line.length () = = 0) {continue; 
} if (out!= null && line.contains (MPID)) {Out.write (Mydate.getdateen () + "" + line + "\ n"). GetBytes ()); 
A catch (IOException e) {e.printstacktrace ()); 
finally {if (Logcatproc!= null) {Logcatproc.destroy (); 
Logcatproc = null; } if (Mreader!=NULL) {try {mreader.close (); 
Mreader = null; 
catch (IOException e) {e.printstacktrace (); 
} if (out!= null) {try {out.close (); 
catch (IOException e) {e.printstacktrace (); 
out = null;  } 
} 
} 
} 
}

System permissions

<uses-permission android:name= "Android.permission.WRITE_EXTERNAL_STORAGE"/> 

Time Tool Class:

Package com.sdmc.hotel.util;
Import Java.text.SimpleDateFormat; 
Import java.util.Date; 
public class MyDate {public 
static String GetFileName () { 
SimpleDateFormat format = new SimpleDateFormat ("Yyyy-m M-dd "); 
String date = Format.format (new date (System.currenttimemillis ()); 
return date;//October 03, 2012 23:41:31 
} public 
static String Getdateen () { 
SimpleDateFormat format1 = new Si Mpledateformat ("Yyyy-mm-dd HH:mm:ss"); 
String date1 = Format1.format (New Date (System.currenttimemillis ())); 
return date1;//2012-10-03 23:41:31 
} 
}

Call to the method:

public class MyApplication extends application { 
@Override public 
void OnCreate () { 
Logcathelper.getinstance (This). Start ();