Calculate time for TextView rendering performance

Question

How do I calculate the time needed for TextView to render a line of text?

textView.setText("hello");

Record time before and after the method call. But, how would is it going to help you. — Kumar Bibek, Jul 20 '12 at 05:40

score 1 · Accepted Answer · answered Jul 20 '12 at 05:53

1

You can extend TextView class and override draw:

@Override
public void draw(Canvas canvas) {
    //log start time
    super.draw(canvas);
    //log end time
}

answered Jul 20 '12 at 05:53

Maxim

score 0 · Answer 2 · answered Jul 20 '12 at 05:47

0

Use Android Traceview in eclipse

answered Jul 20 '12 at 05:47

Vishwanath.M

Check this link http://stackoverflow.com/questions/1957135/how-to-test-the-performance-of-an-android-application – Vishwanath.M Jul 20 '12 at 06:42

score 0 · Answer 3 · answered Jul 20 '12 at 06:32

An alternative to @Maxim is to just log before and after setText("hello");

Log.i(logTag, "start time");
textView.setText("hello");
Log.i(logTag, "end time");

This won't work if the view is only rendered after the call to setText though. Maybe someone can confirm or deny that in a comment.

3 Answers3