Android Log日志管理

使用Timber

源码地址：https://github.com/JakeWharton/timber

在build.grade中引入Timber：

 

implementation 'com.jakewharton.timber:timber:4.7.0'

 

在自定义Application中：

 

if (isDebug()) {
    Timber.plant(new DebugTree());
} else {
    Timber.plant(new ReleaseTree());
}

创建新的类

 

public class DebugTree extends Timber.DebugTree {

    @Override
    protected void log(int priority, String tag, String message, Throwable t) {
        if (tag != null) {
            String threadName = Thread.currentThread().getName();
            tag = "<" + threadName + "> " + tag;
        }
        super.log(priority, tag, message, t);
    }

    @Override
    protected String createStackElementTag(StackTraceElement element) {
        return super.createStackElementTag(element) + "(Line " + element.getLineNumber() + ")";  //日志显示行号
    }
}

public class ReleaseTree extends Timber.DebugTree {
    

    @Override

        protected void log(int priority, String tag, String message, Throwable t) {

            // String CacheDiaPath = context.getCacheDir().toString();

if (TextUtils.isEmpty(CacheDiaPath)) {

return;

            }

            File file = new File(CacheDiaPath + "/log.txt");

            Log.v("dyp", "file.path:" + file.getAbsolutePath() + ",message:" + message);

FileWriter writer = null;

            BufferedWriter bufferedWriter = null;

             try {

                writer = new FileWriter(file);

                bufferedWriter = new BufferedWriter(writer);

                bufferedWriter.write(message);

                bufferedWriter.flush();

            } catch (IOException e) {

Log.v("dyp", "存储文件失败");    

e.printStackTrace();

             } finally {

                if (bufferedWriter != null) {

                    try {

                        bufferedWriter.close();

                } catch (IOException e) {

                        e.printStackTrace();

                }

            }

            }

        }

}

以上两个，一个是调试版本使用，一个是正式版本使用。还有一些其他的树，可以自己写一下，如果控制打印等级，也可以加上去。

之后你就会觉得很麻烦，日志越来越多，肯定要有管理，打印等级也要控制一下，即便在等级低的时候，也要记录日志，因为有很多日志要在有异常的时候打印出来，但是又不能打印一两句话，所以要把上下文打印出来，这样就麻烦很多了。

 

先说管理吧

logback-android 

地址：https://github.com/tony19/logback-android 点击打开链接

 

In app/build.gradle, add the following dependencies:

dependencies {
  compile 'org.slf4j:slf4j-api:1.7.25'
  compile 'com.github.tony19:logback-android:1.1.1-11'
}

Create app/src/main/assets/logback.xml containing:

<configuration>
  <appender name="logcat" class="ch.qos.logback.classic.android.LogcatAppender">
    <tagEncoder>
      <pattern>%logger{12}</pattern>
    </tagEncoder>
    <encoder>
      <pattern>[%-20thread] %msg</pattern>
    </encoder>
  </appender>

  <root level="DEBUG">
    <appender-ref ref="logcat" />
  </root>
</configuration>