First, profile and find out which is the slow part (reading, tokenizing,
string-to-float conversion).
Second, conversion of string to float is ridiculously slow in some Java
library versions (Android uses Apache Java libraries). This came up in
the context of SVG parsing, IIRC, a few months ago, search this group's
archives.
-- Kostya
04.10.2011 20:42, bob пишет:
Does anyone know why this code is ridiculously slow and/or how to make
it faster?
float[] getVertices(String filename) {
try {
AssetManager am = this.getResources().getAssets();
InputStream is = am.open(filename);
BufferedInputStream bis = new BufferedInputStream(is);
Scanner s = new Scanner(bis);
long numfloats = s.nextLong();
float[] f = new float[(int) numfloats];
for (int ctr = 0; ctr< f.length; ctr++) {
f[ctr] = s.nextFloat();
}
return f;
} catch (IOException e) {
e.printStackTrace();
return null;
}
}
--
Kostya Vasilyev
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