From a67cd41317b1c5b3d7b99078c1a3a259cab273e9 Mon Sep 17 00:00:00 2001
From: Tharun kumar <cb.en.u4cse17419@cb.students.amrita.edu>
Date: Mon, 20 Apr 2020 18:34:54 +0530
Subject: [PATCH] Upload New File
---
MainActivity.java | 103 ++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 103 insertions(+)
create mode 100644 MainActivity.java
diff --git a/MainActivity.java b/MainActivity.java
new file mode 100644
index 0000000..06462f2
--- /dev/null
+++ b/MainActivity.java
@@ -0,0 +1,103 @@
+package com.example.fund_restart;
+
+import androidx.appcompat.app.AlertDialog;
+import androidx.appcompat.app.AppCompatActivity;
+
+import android.content.Context;
+import android.content.DialogInterface;
+import android.content.Intent;
+import android.database.Cursor;
+import android.database.sqlite.SQLiteDatabase;
+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 MainActivity extends AppCompatActivity implements View.OnClickListener {
+ EditText email,password;
+ Button loginbutton;
+ TextView register,logintext,admin_login;
+ SQLiteDatabase d;
+ @Override
+ protected void onCreate(Bundle savedInstanceState) {
+ super.onCreate(savedInstanceState);
+ setContentView(R.layout.activity_main);
+ logintext = findViewById(R.id.logintext);
+ email = (EditText) findViewById(R.id.username);
+ password = (EditText) findViewById(R.id.password);
+ admin_login = findViewById(R.id.adminlog);
+ register = findViewById(R.id.register);
+ register.setOnClickListener(this);
+ logintext.setOnClickListener(this);
+ admin_login.setOnClickListener(this);
+ d = openOrCreateDatabase("StudentDB", Context.MODE_PRIVATE, null);
+ }
+
+ @Override
+ public void onClick(View v) {
+ if(v.getId() == R.id.adminlog){
+ Intent admin = new Intent(this,Adminpre.class);
+ startActivity(admin);
+ }
+ if(v.getId() == R.id.register){
+ Intent register_intent = new Intent(this,Register.class);
+ startActivity(register_intent);
+ }
+ if(v.getId() == R.id.logintext){
+
+ if(email.getText().toString().isEmpty() || password.getText().toString().isEmpty()) {
+ {
+ AlertDialog.Builder alertDialog = new AlertDialog.Builder(MainActivity.this);
+ alertDialog.setTitle("Alert");
+ alertDialog.setMessage("Fill all the details");
+ alertDialog.setPositiveButton("ok", new DialogInterface.OnClickListener() {
+ @Override
+ public void onClick(DialogInterface dialog, int which) {
+
+ }
+ });
+ alertDialog.show();
+ }}
+ else
+ {
+ Cursor cus=d.rawQuery("SELECT count(email) FROM student WHERE email ='" + email.getText() + "'", null);
+ if(cus.moveToFirst())
+ {
+ if(cus.getInt(0)>=1)
+ {
+ Cursor cu = d.rawQuery("SELECT password FROM student WHERE email='" + email.getText() + "'", null);
+ if (cu.moveToFirst()) {
+ // Displaying record if found

+ if (cu.getString(0).equals(password.getText().toString()) ) {
+ Toast.makeText(getApplicationContext(), "Logging in....", Toast.LENGTH_SHORT).show();
+ Intent x = new Intent(MainActivity.this, Login.class);
+ startActivity(x);
+ }
+
+ else {
+ showMessage("Error", "Invalid password");
+ password.setText("");
+ }
+ }
+ cu.close();
+ }
+ else if(cus.getInt(0)==0)
+ {
+ showMessage("Create an account first", "No account found in this name");
+ }
+ }
+ cus.close();}
+
+ }
+ }
+
+ private void showMessage(String error, String invalid_password) {
+ AlertDialog.Builder builder = new AlertDialog.Builder(this);
+ builder.setCancelable(true);
+ builder.setTitle(error);
+ builder.setMessage(invalid_password);
+ builder.show();
+ }
+}
--
GitLab