LibCat

简体中文

Intercept the logs directly logged by android.util.Log within whole app's code, and redirect the logs to specified Printer.

Mostly, LibCat is used to intercept the logs from third party modules/libraries, and save the logs to the log file, by specifying a FilePrinter.

About Printers, see more in XLog.

Quick Start

Add in build.gradle

apply plugin: 'android-aspectjx'

android {
    compileOptions {
        sourceCompatibility JavaVersion.VERSION_1_8
        targetCompatibility JavaVersion.VERSION_1_8
    }
}

buildscript {
    repositories {
        jcenter()
        google()
    }
    dependencies {
        classpath 'com.hujiang.aspectjx:gradle-android-plugin-aspectjx:2.0.10'
    }
}

aspectjx {
    // if you use kotlin in your project make sure to exclude `kotlin`,
    // otherwise a build error `zip file is empty` will be thrown
    exclude 'kotlin'

    // add 'exclude' packages/classes that you don't want to intercept the logs from
    exclude 'androidx.appcompat'
    exclude 'android.support'

    // or add 'include' packages/classes that you want to intercept the logs from
}

dependencies {
    implementation 'com.elvishew:xlog-libcat:1.0.0'
}

Config when initializing app

LibCat.config(true, printer);

Then, all future logs logged by android.util.Log will be redirected to printer.

Examples

• Logs in logcat and printer

LibCat.config(true, printer);

• Logs in logcat only (exactly like the situation before using LibCat)

LibCat.config(true, null);

• Logs in printer only

LibCat.config(false, printer);

• Logs disappear totally

LibCat.config(false, null);

References

AspectJ

AspectJX

Attention

During compiling app, AspectJ will remove all callings of android.util.Log and replace with LibCat logic. No source code will be changed, but only bytecode.

License

Copyright 2021 Elvis Hew

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

   http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.