tracer ftrace笔记（18）—— 待解问题汇总
1. 长时间卡在 MSG_WINDOW_FOCUS_CHANGED 条目中
public void handleMessage(Message msg) //android/view/ViewRootImpl.java Trace.traceBegin(Trace.TRACE_TAG_VIEW, getMessageName(msg)); //这里打印条目有 MSG_WINDOW_FOCUS_CHANGED handleMessageImpl(msg); Trace.traceEnd(Trace.TRACE_TAG_VIEW); handleMessageImpl(msg); case MSG_WINDOW_FOCUS_CHANGED: handleWindowFocusChanged(); //ViewRootImpl.java