progress bar
SDカードのファイルを解凍して更新しようとして
います。私の解凍は正常に機能しますが、表示されprogress bar
ません。mainactivity の私のコードは次のとおりです。
private ProgressBar bar;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
bar = (ProgressBar) findViewById(R.id.progress);
String zipFilename = Environment.getExternalStorageDirectory() + "path to my zip file in sd card";
String unzipLocation = Environment.getExternalStorageDirectory() + "the output folder";
Decompress d = new Decompress(zipFilename, unzipLocation);
d.unzip();
}
public class Decompress {
private String _zipFile;
private String _location;
private int per = 0;
public Decompress(String zipFile, String location) {
_zipFile = zipFile;
_location = location;
_dirChecker("");
}
public void unzip() {
try {
ZipFile zip = new ZipFile(_zipFile);
bar.setMax(zip.size());
FileInputStream fin = new FileInputStream(_zipFile);
ZipInputStream zin = new ZipInputStream(fin);
ZipEntry ze = null;
while ((ze = zin.getNextEntry()) != null) {
Log.v("Decompress", "Unzipping " + ze.getName());
if(ze.isDirectory()) {
_dirChecker(ze.getName());
} else {
// Here I am doing the update of my progress bar
per++;
bar.setProgress(per);
FileOutputStream fout = new FileOutputStream(_location + ze.getName());
for (int c = zin.read(); c != -1; c = zin.read()) {
fout.write(c);
}
zin.closeEntry();
fout.close();
}
}
zin.close();
} catch(Exception e) {
Log.e("Decompress", "unzip", e);
}
}
private void _dirChecker(String dir) {
File f = new File(_location + dir);
if(!f.isDirectory()) {
f.mkdirs();
}
}
}
}