I have code for login activity in android studio using php sql with it this is the code :-
public class MainActivity extends ActionBarActivity { protected EditText username; private EditText password; protected String enteredUsername; private final String serverUrl = "http://192.168.0.103/androidlogin/index.php"; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); username = (EditText)findViewById(R.id.username_field); password = (EditText)findViewById(R.id.password_field); Button loginButton = (Button)findViewById(R.id.login); Button registerButton = (Button)findViewById(R.id.register_button); loginButton.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { enteredUsername = username.getText().toString(); String enteredPassword = password.getText().toString(); if(enteredUsername.equals("") || enteredPassword.equals("")){ Toast.makeText(MainActivity.this, "Username or password must be filled", Toast.LENGTH_LONG).show(); return; } if(enteredUsername.length() <= 1 || enteredPassword.length() <= 1){ Toast.makeText(MainActivity.this, "Username or password length must be greater than one", Toast.LENGTH_LONG).show(); return; } // request authentication with remote server4 AsyncDataClass asyncRequestObject = new AsyncDataClass(); asyncRequestObject.execute(serverUrl, enteredUsername, enteredPassword); } }); registerButton.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { Intent intent = new Intent(MainActivity.this, RegisterActivity.class); startActivity(intent); } }); } @Override public boolean onCreateOptionsMenu(Menu menu) { // Inflate the menu; this adds items to the action bar if it is present. getMenuInflater().inflate(R.menu.menu_main, menu); return true; } @Override public boolean onOptionsItemSelected(MenuItem item) { // Handle action bar item clicks here. The action bar will // automatically handle clicks on the Home/Up button, so long // as you specify a parent activity in AndroidManifest.xml. int id = item.getItemId(); //noinspection SimplifiableIfStatement if (id == R.id.action_settings) { return true; } return super.onOptionsItemSelected(item); } private class AsyncDataClass extends AsyncTask<String, Void, String> { @Override protected String doInBackground(String... params) { HttpParams httpParameters = new BasicHttpParams(); HttpConnectionParams.setConnectionTimeout(httpParameters, 5000); HttpConnectionParams.setSoTimeout(httpParameters, 5000); HttpClient httpClient = new DefaultHttpClient(httpParameters); HttpPost httpPost = new HttpPost(params[0]); String jsonResult = ""; try { List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(2); nameValuePairs.add(new BasicNameValuePair("username", params[1])); nameValuePairs.add(new BasicNameValuePair("password", params[2])); httpPost.setEntity(new UrlEncodedFormEntity(nameValuePairs)); HttpResponse response = httpClient.execute(httpPost); jsonResult = inputStreamToString(response.getEntity().getContent()).toString(); } catch (ClientProtocolException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } return jsonResult; } @Override protected void onPreExecute() { super.onPreExecute(); } @Override protected void onPostExecute(String result) { super.onPostExecute(result); System.out.println("Resulted Value: " + result); if(result.equals("") || result == null){ Toast.makeText(MainActivity.this, "Server connection failed", Toast.LENGTH_LONG).show(); return; } int jsonResult = returnParsedJsonObject(result); if(jsonResult == 0){ Toast.makeText(MainActivity.this, "Invalid username or password", Toast.LENGTH_LONG).show(); return; } if(jsonResult == 1){ Intent intent = new Intent(MainActivity.this, LoginActivity.class); intent.putExtra("USERNAME", enteredUsername); intent.putExtra("MESSAGE", "You have been successfully login"); startActivity(intent); } } private StringBuilder inputStreamToString(InputStream is) { String rLine = ""; StringBuilder answer = new StringBuilder(); BufferedReader br = new BufferedReader(new InputStreamReader(is)); try { while ((rLine = br.readLine()) != null) { answer.append(rLine); } } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } return answer; } } private int returnParsedJsonObject(String result){ JSONObject resultObject = null; int returnedResult = 0; try { resultObject = new JSONObject(result); returnedResult = resultObject.getInt("success"); } catch (JSONException e) { e.printStackTrace(); } return returnedResult; } } with 21 sdk version it work so perfect but when i try to change the gradle file to 25 version i had many red lines under http connection code
so what's the solution how can i upgrade the sdk to 25 without get any problems ? thanks alot
