Android device logcat debug log cannot be output

[weijunfeng]

Using Log.d(xx) to output logs on my Android device does not show up on the console.

I tried to solve this problem and found that I need to modify the log output in LogcatWriter

    override fun log(severity: Severity, message: String, tag: String, throwable: Throwable?) {
        val formattedMessage = messageStringFormatter.formatMessage(null, null, Message(message))
        try {
            if(throwable == null){
                when(severity){
                    Severity.Verbose -> Log.v(tag, formattedMessage)
                    Severity.Debug -> Log.d(tag, formattedMessage)
                    Severity.Info -> Log.i(tag, formattedMessage)
                    Severity.Warn -> Log.w(tag, formattedMessage)
                    Severity.Error -> Log.e(tag, formattedMessage)
                    Severity.Assert -> Log.wtf(tag, formattedMessage)
                }
            }else{
                when(severity){
                    Severity.Verbose -> Log.v(tag, formattedMessage, throwable)
                    Severity.Debug -> Log.d(tag, formattedMessage, throwable)
                    Severity.Info -> Log.i(tag, formattedMessage, throwable)
                    Severity.Warn -> Log.w(tag, formattedMessage, throwable)
                    Severity.Error -> Log.e(tag, formattedMessage, throwable)
                    Severity.Assert -> Log.wtf(tag, formattedMessage, throwable)
                }
            }
        } catch (e: Exception) {
            testWriter.log(severity, message, tag, throwable)
        }
    }

replace with

   private fun getSeverity(severity: Severity) = when (severity) {
        Severity.Verbose -> Log.VERBOSE
        Severity.Debug -> Log.DEBUG
        Severity.Info -> Log.INFO
        Severity.Warn -> Log.WARN
        Severity.Error -> Log.ERROR
        Severity.Assert -> Log.ASSERT
    }

    override fun log(severity: Severity, message: String, tag: String, throwable: Throwable?) {
        val formattedMessage = messageStringFormatter.formatMessage(null, null, Message(message))
        try {
            // 使用 Log.println 解决部分设备无法输出debug日志问题
            val stackTraceString = Log.getStackTraceString(throwable)
            Log.println(
                getSeverity(severity), tag, if (stackTraceString.isEmpty()) {
                    formattedMessage
                } else {
                    formattedMessage + '\n' + stackTraceString
                }
            )
        } catch (e: Exception) {
            testWriter.log(severity, message, tag, throwable)
        }
    }

Use Log.println to output logs