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有人可以說爲什麼這會凍結UI線程?線程凍結UI - Android
new Thread(new Runnable() {
@Override
public void run() {
try {
if (!downloadingdemo) {
if (downloadlink.indexOf(".zip") > -1) {
File zipped = new File(context.getExternalFilesDir(context.getFilesDir().getAbsolutePath()).getAbsolutePath() + "/cctemp/books/" + bookid.toString() + ".czfile");
ZipFile zipFile = new ZipFile(zipped);
try {
//File src = new File(basedownloadlocation + bookid + ".czfile");
//zipFile = new ZipFile(src);
if (zipFile.isEncrypted()) {
zipFile.setPassword("www.comic-city.ir");
}
} catch (ZipException e1) {
e1.printStackTrace();
}
File f = new File(basedownloadlocation + bookid);
if (f.exists()) {
for (int i = 0; i < f.listFiles().length; i++) {
File[] lists = f.listFiles();
File fs = lists[0];
fs.delete();
}
f.delete();
}
f.mkdir();
zipFile.extractAll(basedownloadlocation + bookid);
File f1 = new File(basedownloadlocation + bookid + ".czfile");
if (f1.exists()) {
File f2 = new File(basedownloadlocation + bookid);
if (f2.exists()) {
for (int i = 0; i < f2.listFiles().length; i++) {
File f3 = new File(basedownloadlocation + bookid + ".cdfile");
if (f3.exists())
f3.delete();
File[] files = f2.listFiles();
File extractedfile = files[0];
extractedfile.renameTo(new File(basedownloadlocation + bookid + ".cdfile"));
}
f2.delete();
f1.delete();
Encryption.EncryptComic(basedownloadlocation + bookid + ".cdfile", basedownloadlocation + bookid + ".cfile");
//File_Encryption.EncryptFile(basedownloadlocation + bookid + ".cefile", basedownloadlocation + bookid + ".cfile");
File f4 = new File(basedownloadlocation + bookid + ".cdfile");
f4.delete();
}
}
} else {
File f = new File(basedownloadlocation + bookid + ".czfile");
f.renameTo(new File(basedownloadlocation + bookid + ".cfile"));
}
}
}catch(Exception e){}
}).run();
每一行工作正常,它只是凍結UI。行zipFile.extractAll()
和Encryption.EcnryptComic()
需要一些時間來完成他們的工作,並且我正在使用一個新線程來防止UI凍結,但由於某種原因它仍凍結了UI。
該代碼塊位於一個非活動類中,該活動類是從活動內部的AsyncTask內部調用的。
我也嘗試過使用,而不是線程的AsyncTask,而一個甚至沒有做任何事情(不,我還沒有忘記去執行它。)
所以任何想法有什麼不對的代碼?