代码整理

app/src/main/java/com/electric/chargingpile/activity/MainMapActivity.java

        registerReceiver(networkChangeReceiver, intentFilter);
        EventBusUtil.register(this);
//        Map<String ,String> map = new HashMap<>();
//        map.put("user_id","123456");
//        map.put("password","juijncui");
//        map.put("user_name","miojniuniu");
//        String s = Md5Util.getSignTwo(map);
//        Log.e("1111",s);
//        getGaode(113.19084294353,23.474732420387);
//        getAssetsCacheFile(getApplicationContext(), "zhan_list.db");
//        Log.e("i***=", MainApplication.count + "");
//        Log.e("type===", MainApplication.type);
//        Log.e("url===", MainApplication.h5_url);
        if (!MainApplication.h5_url.equals("") && MainApplication.type.equals("PushWeb")) {
            Intent intent = new Intent(getApplicationContext(), MyWebViewActivity.class);
//            intent.putExtra("tag", "5");
            intent.putExtra("url", MainApplication.h5_url);
            startActivity(intent);
            MainApplication.h5_url = "";
        File databasePath = getDatabasePath("zhan_list");
        databasePath.getParentFile().mkdirs();
        databasePath.createNewFile();
//        Log.e("path===", databasePath.getPath());
//        Log.e("path===", databasePath.getAbsolutePath());
        InputStream inputStream = getAssets().open("zhan_list.db");
        FileOutputStream fileOutputStream = new FileOutputStream(databasePath);

app/src/main/java/com/electric/chargingpile/util/ZhanDBHelper.java

    private static String DB_PATH = "/data/user/0/com.electric.chargingpile/databases/zhan_list";
    //	private static String DB_PATH = "/data/user/0/com.electric.chargingpile/cache/";
    /*
     * //�����������ݿ��ļ������SD���Ļ� private static String DB_PATH =
     * android.os.Environment.getExternalStorageDirectory().getAbsolutePath() +
     * "/arthurcn/drivertest/packfiles/";
     */
    private final Context myContext;
    /**
     * ������ݿ��ļ��ϴ�ʹ��FileSplit�ָ�ΪС��1M��С�ļ� �����зָ�Ϊ hello.db.101 hello.db.102
     * hello.db.103
     */
    // ��һ���ļ�����׺
    private static final int ASSETS_SUFFIX_BEGIN = 101;
    // ���һ���ļ�����׺
    private static final int ASSETS_SUFFIX_END = 103;
    /**
     * ��SQLiteOpenHelper�����൱�У������иù��캯��
     *
     * @param context �����Ķ���
     * @param name    ���ݿ�����
     * @param factory һ�㶼��null
     * @param version ��ǰ���ݿ�İ汾��ֵ���������������ǵ�����״̬
     * @param context
     * @param name
     * @param factory
     * @param version
     */
    public ZhanDBHelper(Context context, String name, CursorFactory factory,
                        int version) {
        // ����ͨ��super���ø��൱�еĹ��캯��
    public ZhanDBHelper(Context context, String name, CursorFactory factory, int version) {
        super(context, name, null, version);
        this.myContext = context;
    }
    public void createDataBase() throws IOException {
        boolean dbExist = checkDataBase();
        if (dbExist) {
            // ���ݿ��Ѵ��ڣ�do nothing.
            // do nothing
        } else {
            // �������ݿ�
            try {
                File dir = new File(DB_PATH);
                if (!dir.exists()) {
                    dbf.delete();
                }
                SQLiteDatabase.openOrCreateDatabase(dbf, null);
                // ����asseets�е�db�ļ���DB_PATH��
                copyDataBase();
            } catch (IOException e) {
                throw new Error("���ݿⴴ��ʧ��");
        }
    }
    // ������ݿ��Ƿ���Ч
    private boolean checkDataBase() {
        SQLiteDatabase checkDB = null;
        String myPath = "/data/user/0/com.electric.chargingpile/databases/zhan_list";