android - 如何像在 android 4.2 中一样在 android 4.3 中启用跟踪

Question

在 android 4.2 中，转到设置->开发人员选项->启用跟踪，我可以启用跟踪并在 systrace 输出图表中显示它们。但是在android 4.3中，enable trace选项被移除了，那么如何开启trace呢？

Answer 1

来自Official Doc .

Systrace events for apps

Android 4.3 adds the Trace class with two static methods, beginSection() and endSection(), which allow you to define blocks of code to include with the systrace report. By creating sections of traceable code in your app, the systrace logs provide you a much more detailed analysis of where slowdown occurs within your app.

For information about using the Systrace tool, read Analyzing Display and Performance with Systrace.