I would like to extend the android.util.Log class to also write to a log file in internal storage of the device, preferrably also for specific TAGS.
I currently have an implementation:
public class CustomLogger{
private final static Logger fileLog = Logger.getLogger(MainActivity.class);
private Context context;
public CustomLogger(Context c){
this.context = c;
final LogConfigurator logConfigurator = new LogConfigurator();
logConfigurator.setFileName(context.getFilesDir() + File.separator + "myApp.log");
logConfigurator.setRootLevel(Level.DEBUG);
logConfigurator.setLevel("org.apache", Level.ERROR);
logConfigurator.configure();
}
public void i(String TAG, String message){
// Printing the message to LogCat console
Log.i(TAG, message);
// Write the log message to the file
fileLog.info(TAG+": "+message);
}
public void d(String TAG, String message){
Log.d(TAG, message);
fileLog.debug(TAG+": "+message);
}
}
As you can see this custom logger logs both to a log file on the internal storage (using the android-logging-log4j library) and through the android.util.Log class.
However i would like the standard log entries from the android.util.Log class in my log file, and if possible only certain (custom) TAGS.
Anybody has an example or any good tips on how to reach this?
Thanks in advance
You can read log cat programmatically and store into text file or you send it wherever you want.
below is the detailed article i have writter for same
Read & Store Log-cat Programmatically in Android
and For reading the logcat here is sample code
public class LogTest extends Activity {
private StringBuilder log;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
try {
Process process = Runtime.getRuntime().exec("logcat -d");
BufferedReader bufferedReader = new BufferedReader(
new InputStreamReader(process.getInputStream()));
log=new StringBuilder();
String line;
while ((line = bufferedReader.readLine()) != null) {
log.append(line);
}
TextView tv = (TextView)findViewById(R.id.textView1);
tv.setText(log.toString());
} catch (IOException e) {
}
//convert log to string
final String logString = new String(log.toString());
//create text file in SDCard
File sdCard = Environment.getExternalStorageDirectory();
File dir = new File (sdCard.getAbsolutePath() + "/myLogcat");
dir.mkdirs();
File file = new File(dir, "logcat.txt");
try {
//to write logcat in text file
FileOutputStream fOut = new FileOutputStream(file);
OutputStreamWriter osw = new OutputStreamWriter(fOut);
// Write the string to the file
osw.write(logString);
osw.flush();
osw.close();
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
}
Answer：
So there is much shorter variant
try {
final File path = new File(
Environment.getExternalStorageDirectory(), "DBO_logs5");
if (!path.exists()) {
path.mkdir();
}
Runtime.getRuntime().exec(
"logcat -d -f " + path + File.separator
+ "dbo_logcat"
+ ".txt");
} catch (IOException e) {
e.printStackTrace();
}
Tags: androidandroid, file, logging
