package com.example.myapp_1; import androidx.appcompat.app.AppCompatActivity; import android.content.Intent; import android.os.Bundle; import android.view.View; import android.widget.Button; import android.widget.EditText; import android.widget.TextView; import android.widget.Toast; public class SigninActivity extends AppCompatActivity { EditText username; EditText phonenumber; EditText email; EditText password; Button register; protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_sign_in); username = findViewById(R.id.editTextText2); phonenumber = findViewById(R.id.editTextText3); email = findViewById(R.id.editTextText5); password = findViewById(R.id.editTextTextPassword2); register = findViewById(R.id.button4); register.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { String username_data = username.getText().toString(); String phonenumber_data = username.getText().toString(); String email_data = username.getText().toString(); String password_data = username.getText().toString(); boolean checked = false; //Add the user to the database //betengano base String [] data = new String[4]; data[0] = username_data; data[1] = phonenumber_data; data[2] = email_data; data[3] = password_data; for(int i = 0; i < data.length; i++){ if(data[i].isEmpty()){ Toast.makeText(SigninActivity.this, "Please fill your data!", Toast.LENGTH_LONG).show(); checked = false; break; }else{ checked = true; } } if(checked == true){ Intent newScreen = new Intent(getApplicationContext(), LoginActivity.class); startActivity(newScreen); } } }); } }