首先,我在主要活動中編寫了一些方法,但我決定他們應該是一個班級。OpenFileOutput()方法未定義!
這是我的代碼... openFileOutput和openFileInput是未定義的。任何想法??也許它應該是服務或活動......?
package spexco.hus.system;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.Date;
import spexco.hus.cepvizyon.CepVizyon;
import android.content.Context;
public class LicenseIDB {
private String PHONECODEFILE = "CepVizyonCode";
private static String PhoneCode = null;
public LicenseIDB() {
if (readLocal(PHONECODEFILE, 8) == null)
createSystemCode();
}
public static long getDate() {
Date currentTime = new Date();
return currentTime.getTime();
}
public void createSystemCode() {
long date = getDate();
String str = Integer.toHexString(Integer.MAX_VALUE - (int) date);
for (int i = str.length(); i < 8; i++) {
str += "" + i;
}
PhoneCode = str.substring(0, 8);
saveLocal(PhoneCode, PHONECODEFILE);
}
public static String getPhoneCode() {
return PhoneCode;
}
public void saveLocal(String fileString, String Adress) {
try {
FileOutputStream fos = openFileOutput(Adress, Context.MODE_PRIVATE);
fos.write(fileString.getBytes());
fos.close();
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
public String readLocal(String Adress, int lenght) {
byte[] buffer = new byte[lenght];
String str = new String();
try {
FileInputStream fis = openFileInput(Adress);
fis.read(buffer);
fis.close();
str = new String(buffer);
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return str;
}
}
的可能的複製[機器人有什麼不對openFileOutput?](使用HTTP://計算器.com/questions/3625837/android-what-is-wrong-with-openfileoutput) – 2016-10-31 09:04:53
@MichaelGaskill是的,這是可能的。但是這些問題已經有6年了.. :)我想,在我研究了很多之後,我開了個問題。但我不記得,只是想.. :) – atasoyh 2016-11-03 13:53:43