android 应用程序性能跟踪

So here's how you can optimize, analyze your current application using TraceView.
Open your Project, and after onCreate() , or anywhere you want to start Log tracing, paste the following lines:

 

/* start tracing to "/sdcard/filename.trace" */
Debug.startMethodTracing("filename");

 It is very important to stop tracing after you have done debugging. To do that, place these lines before onCreate() .

public void onDestroy() {
	// stop tracing
	Debug.stopMethodTracing();
}

 Now run your Project, do anything you'd like to optimize, and quit. Open up DDMS File Explorer , and download /sdcard/filename.trace to your hard disk drive.

Go to your Android SDK folder, open Tools directory, and run ./traceview filename.trace

Here's how it looks like: