This is a simple log print utils, like android.util.Log.
The "log" module is written in kotlin and can be used anywhere in Java / Kotlin projects.
The "log-android" module is a utility for using the "log" module on Android.
-
log
- Java SE 7 or later
-
log-android
- Android API Level 14 (Android 4.0.0) or later
And I strongly recommend to use with Lambda. (Kotlin, Java8, desugar, retrolambda, etc.)
This library needs to set Log Level. Default is never output log. And needs to specify a Sender. Default does nothing.
If you use the default implementation, write as follows.
private val DEBUG = true
private val VERBOSE = true
...
if (DEBUG) {
Logger.setLogLevel(Logger.VERBOSE)
Logger.setSender(Senders.create())
Senders.appendCaller(VERBOSE)
Senders.appendThread(VERBOSE)
}If you write it like this, you can output log to Logcat. (default is System.out)
private val VERBOSE = true
...
if (BuildConfig.DEBUG) {
Logger.setLogLevel(Logger.VERBOSE)
Logger.setSender(AndroidSenders.create())
AndroidSenders.appendCaller(VERBOSE)
AndroidSenders.appendThread(VERBOSE)
}Of course you can implement Sender any way. e.g. write to a file or send it to the network, etc.
Logger.setSender {level, message, throwable ->
...
}If you want to use same format as the default, please try the following:
Logger.setSender(DefaultSender.create { level, tag, message ->
...
})If you set the log level, logs that are equal to or higher than the set value are output.
ASSERT > ERROR > WARN > INFO > DEBUG > VERBOSE
eg. If you set Log.ERROR
Logger.setLogLevel(Log.ERROR)Only ASSERT or ERROR level logs are output.
Logger.v("verbose")
Logger.d("debug")
Logger.i("info")
Logger.w("warning")
Logger.e("error")Logger.setLogLevel(Logger.VERBOSE)
Logger.setSender(Senders.create())2018-02-24 05:02:05.510 V [MainWindow] verbose
2018-02-24 05:02:05.510 D [MainWindow] debug
2018-02-24 05:02:05.510 I [MainWindow] info
2018-02-24 05:02:05.510 W [MainWindow] warning
2018-02-24 05:02:05.510 E [MainWindow] error
Logger.setLogLevel(Logger.VERBOSE)
Logger.setSender(Senders.create())
Senders.appendCaller(true)
Senders.appendThread(true)2018-02-24 05:02:46.541 V [MainWindow] [main,5,main] net.mm2d.upnp.sample.MainWindow.main(MainWindow.java:57) : verbose
2018-02-24 05:02:46.542 D [MainWindow] [main,5,main] net.mm2d.upnp.sample.MainWindow.main(MainWindow.java:58) : debug
2018-02-24 05:02:46.542 I [MainWindow] [main,5,main] net.mm2d.upnp.sample.MainWindow.main(MainWindow.java:59) : info
2018-02-24 05:02:46.542 W [MainWindow] [main,5,main] net.mm2d.upnp.sample.MainWindow.main(MainWindow.java:60) : warning
2018-02-24 05:02:46.542 E [MainWindow] [main,5,main] net.mm2d.upnp.sample.MainWindow.main(MainWindow.java:61) : error
Download from jCenter.
repositories {
jcenter()
}Add dependencies, as following.
dependencies {
implementation 'net.mm2d:log:0.9.0'
}If use with Android utils, as following.
dependencies {
implementation 'net.mm2d:log:0.9.0'
implementation 'net.mm2d:log-android:0.9.0'
}- Kotlin
- org.jetbrains.kotlin:kotlin-stdlib-jdk7
大前 良介 (OHMAE Ryosuke) http://www.mm2d.net/