public class FileUtils {
public Context cont;
public FileUtils(Context cont) {
this.cont = cont;
}
// 写入文件中
public void save(String city) {
FileOutputStream fos = null;
BufferedWriter bw = null;
try {
fos = cont.openFileOutput("列表.txt", Context.MODE_APPEND);
bw = new BufferedWriter(new OutputStreamWriter(fos));
bw.write(city);
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} finally {
try {
if (fos != null)
fos.close();
if (bw != null)
bw.close();
} catch (IOException e) {
e.printStackTrace();
}
}
Toast.makeText(cont, "写入成功" + city, 0).show();
}
}