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- public class Tab5TwinOGE extends Fragment{
- Button btnLogin;
- EditText editUsername;
- EditText editPassword;
- TextView result;
- DatabaseHelperTwinIGE databaseHelperTwinIGE;
- @Override
- public View onCreateView(LayoutInflater inflater, ViewGroup container,
- Bundle savedInstanceState) {
- View view = inflater.inflate(R.layout.tab5twinoge, container, false);
- btnLogin = (Button)view.findViewById(R.id.btnAdd);
- editUsername = (EditText)view.findViewById(R.id.txtNumber1);
- editPassword = (EditText)view.findViewById(R.id.txtNumber2);
- result = (TextView)view .findViewById(R.id.txtResult);
- databaseHelperTwinIGE = new DatabaseHelperTwinIGE(getActivity());
- btnLogin.setOnClickListener(new View.OnClickListener() {
- @Override
- public void onClick(View v) {
- String weight = databaseHelperTwinIGE.getUserWeigth(editUsername.getText().toString(), editPassword.getText().toString());
- if (weight != null){
- Toast.makeText(getActivity(),"Login Success, weight = " + weight,Toast.LENGTH_SHORT).show();
- result.setText(weight);
- } else {
- editPassword.setText(null);
- Toast.makeText(getActivity(),"Login failed. Invalid username or password.",Toast.LENGTH_SHORT).show();
- }
- }
- });
- return view;
- }
- private static final String DATABASE_NAME = "test.db";
- private static final int DATABASE_VERSION = 1;
- private final Context context;
- SQLiteDatabase db;
- private static final String DATABASE_PATH = "/data/data/com.app.army.tab/databases/";
- private final String USER_TABLE = "user";
- public DatabaseHelperTwinIGE(Context context) {
- super(context, DATABASE_NAME, null, DATABASE_VERSION);
- this.context = context;
- createDb();
- }
- @Override
- public void onCreate(SQLiteDatabase sqLiteDatabase) {
- }
- @Override
- public void onUpgrade(SQLiteDatabase sqLiteDatabase, int i, int i1) {
- }
- public void createDb() {
- boolean dbExist = checkDbExist();
- if (!dbExist) {
- this.getReadableDatabase();
- copyDatabase();
- }
- }
- private boolean checkDbExist() {
- SQLiteDatabase sqLiteDatabase = null;
- try {
- String path = DATABASE_PATH + DATABASE_NAME;
- sqLiteDatabase = SQLiteDatabase.openDatabase(path, null, SQLiteDatabase.OPEN_READONLY);
- } catch (Exception ex) {
- }
- if (sqLiteDatabase != null) {
- sqLiteDatabase.close();
- return true;
- }
- return false;
- }
- private void copyDatabase() {
- try {
- InputStream inputStream = context.getAssets().open(DATABASE_NAME);
- String ourFileName = DATABASE_PATH + DATABASE_NAME;
- OutputStream outputStream = new FileOutputStream(ourFileName);
- byte[] b = new byte[1024];
- int length;
- while ((length = inputStream.read(b)) > 0) {
- outputStream.write(b, 0, length);
- }
- outputStream.flush();
- outputStream.close();
- inputStream.close();
- } catch (IOException e) {
- e.printStackTrace();
- }
- }
- private SQLiteDatabase openDatabase() {
- String path = DATABASE_PATH + DATABASE_NAME;
- db = SQLiteDatabase.openDatabase(path, null, SQLiteDatabase.OPEN_READWRITE);
- return db;
- }
- public void close() {
- if (db != null) {
- db.close();
- }
- }
- public String getUserWeigth(String username, String password) {
- String[] column = {"weight"};
- db = openDatabase();
- String selection = "username=? and password = ?";
- String[] selectionArgs = {username, password};
- String weight = null;
- Cursor cursor = db.query(USER_TABLE, column, selection, selectionArgs, null, null, null);
- if (cursor.moveToFirst()) {
- weight = cursor.getString(1);
- }
- cursor.close();
- close();
- return weight;
- }
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