Android App Log

A lightweight android logger support auto tag, file logging and show logs on screen

####New in 1.4.0: Use LoggerFactoryConfig.setPropertiesEncoding(encoding) to set the encoding for your aal.properties, 'ISO-8859-1' by default. ####Build：
Binary download:

Gradle build (jcenter):

dependencies{
	compile 'me.allenz:android-app-log:1.4.0'
}	

Will be synchronize to maven central soon! ####How to use:

Put aal.properties into 'assets' or 'res/raw' under your app's root directory, format:

debug=[Show debug log:True|False]
root=[Log level],[Log tag],[Show thread name in tag:True|False]
logcat=[Output to logcat:True|False]
file=[Output to file:True|False],[parent folder of log files],[rolling file size],[enable gzip compress:true|false]
textview=[Output to textview:True|False]
handleex=[Log uncaught exception message:True|False]
logger.[Package or class fullname]=[Log level],[Log tag],[Show thread name in tag:True|False]

Value of 'Log level' can be one of following:

VERBOSE, DEBUG, INFO, WARN, ERROR, ASSERT, OFF

Now use loggers just like log4j!

private static final Logger LOGGER = LoggerFactory.getLogger();

LOGGER.debug("Message");
LOGGER.info("Message with arguments: %s %d", "str", 123);
LOGGER.warn(new Throwable());
LOGGER.error(new Throwable(), "Throwable with a message");

####Example:

aal.properties

debug=false  
root=debug  
#use ${internal} or ${external} to be prefix of folder path, means using internal or external storage of app  
file=true,${internal}/logs  
textview=true  
logger.com.example.app.MainActivity=info,Activity,true
logger.com.example.app=warn

A.java

package com.example.app;

import me.allenz.androidapplog.Logger;
import me.allenz.androidapplog.LoggerFactory;

public class A {

	private static final Logger logger = LoggerFactory.getLogger();

	public A() {
		logger.verbose("verbose");
		logger.debug("debug");
		logger.info("info");
		logger.warn("warn");
	}
}

B.java

package com.example;

import me.allenz.androidapplog.Logger;
import me.allenz.androidapplog.LoggerFactory;

public class B {

	private static final Logger logger = LoggerFactory.getLogger();

	public B() {
		logger.verbose("verbose");
		logger.debug("debug");
		logger.info("info");
		logger.warn("warn");
	}
}

MainActivity.java

package com.example.app;

import me.allenz.androidapplog.Logger;
import me.allenz.androidapplog.LoggerFactory;
import android.app.Activity;
import android.os.Bundle;

import com.example.B;

public class MainActivity extends Activity {

	private static final Logger logger = LoggerFactory.getLogger();
	
	private TextView logView;

	@Override
	protected void onCreate(final Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);
		//create an intouchable and transparent textview to show logs on screen
		logView = LoggerFactory.createLogTextView(this);
		logger.verbose("verbose");
		logger.debug("debug");
		logger.info("info");
		logger.warn("warn");
		new A();
		new B();
	}
	
	@Override
	protected void onResume() {
    	super.onResume();
    	LoggerFactory.bindTextView(logView);
	}

	@Override
	protected void onPause() {
    	super.onPause();
    	LoggerFactory.unbindTextView();
	}

}

Log output in '/data/data/com.example.app/files/logs/com.example.app.log':

2014-08-26 12:05:50.269 INFO [main]Activity info
2014-08-26 12:05:50.269 WARN [main]Activity warn
2014-08-26 12:05:50.269 WARN A warn
2014-08-26 12:05:50.269 DEBUG B debug
2014-08-26 12:05:50.269 INFO B info
2014-08-26 12:05:50.269 WARN B warn