Android 自动将数据库备份到手机存储器和外部存储器

我有备份数据库的功能。谁能帮我写一个自动备份数据库的功能。每一分钟数据库都应该备份到手机存储器或外部存储器

public void backupData() {

    // date
    Calendar c = Calendar.getInstance();
    DateFormat df = new SimpleDateFormat("yyyy-MM-dd_HH-mm-ss");
    String dbDate = df.format(c.getTime());

    path = dir.getAbsolutePath();
    String currentDBPath = DatabaseHandler.DATABASE_NAME;
    String backupDBPath = "247drcare_" + dbDate + ".db";
    File currentDB = new File(getDBPath(), currentDBPath);
    File backupDB = new File(path, backupDBPath);
    if (currentDB.exists()) {
        FileChannel src;
        try {
            src = new FileInputStream(currentDB).getChannel();
            FileChannel dst = new FileOutputStream(backupDB).getChannel();

            dst.transferFrom(src, 0, src.size());
            src.close();
            dst.close();

            // hide other option
            if (path == "/storage/sdcard0/247DoctorCare") {
                System.out.println(backupDBPath);
                System.out.println(settingSuccess);
                settingSuccess
                        .setText("Backup is successfull to your Phone Memory. Backup file Name : "
                                + backupDBPath);

            } else if (path == "/storage/sdcard1/247DoctorCare") {
                settingSuccess
                        .setText("Backup is successfull to your External Memory. Backup file Name : "
                                + backupDBPath);

            }

        } catch (FileNotFoundException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    } else {
        Toast.makeText(getApplicationContext(),
                "Error in retriving current 247DoctorCare Database.",
                Toast.LENGTH_LONG).show();
    }
}

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提前谢谢。

还没有人接电话！。我使用了广播接收器，但仍然没有得到答案。我想调用Alaram管理器中的backUpdatea（）函数。请帮助我如何调用此函数。