langkah langkah membuat login di android studio untuk aplikasi to do list

 

1. Buat Project Baru

Pilih:

• Empty Views Activity

• Language: Kotlin

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✅ 2. Buat Activity

Buat 2 activity:

1. LoginActivity

2. DashboardActivity

Buat 2 kt:

1. LoginActivity.kt

2. activity_dashboard.xml

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✅ 3. Layout activity_login.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    android:gravity="center"
    android:padding="24dp">

    <TextView
        android:text="Login"
        android:textSize="24sp"
        android:textStyle="bold"
        android:layout_marginBottom="24dp"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"/>

    <EditText
        android:id="@+id/edtUsername"
        android:hint="Username"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"/>

    <EditText
        android:id="@+id/edtPassword"
        android:hint="Password"
        android:inputType="textPassword"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginTop="12dp"/>

    <Button
        android:id="@+id/btnLogin"
        android:text="Login"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginTop="20dp"/>
</LinearLayout>

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✅ 4. LoginActivity.kt

package com.example.todolist

import android.content.Intent
import android.os.Bundle
import android.widget.Button
import android.widget.EditText
import android.widget.Toast
import androidx.appcompat.app.AppCompatActivity

class LoginActivity : AppCompatActivity() {

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_login)

        val edtUsername = findViewById<EditText>(R.id.edtUsername)
        val edtPassword = findViewById<EditText>(R.id.edtPassword)
        val btnLogin = findViewById<Button>(R.id.btnLogin)

        btnLogin.setOnClickListener {
            val username = edtUsername.text.toString()
            val password = edtPassword.text.toString()

            if (username == "admin" && password == "123") {
                Toast.makeText(this, "Login Berhasil", Toast.LENGTH_SHORT).show()
                val intent = Intent(this, DashboardActivity::class.java)
                startActivity(intent)
                finish()
            } else {
                Toast.makeText(this, "Username atau Password salah!", Toast.LENGTH_SHORT).show()
            }
        }
    }
}

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✅ 5. Layout activity_dashboard.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:gravity="center"
    android:orientation="vertical">

    <TextView
        android:text="Dashboard To Do List"
        android:textSize="22sp"
        android:textStyle="bold"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"/>

</LinearLayout>

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✅ 6. DashboardActivity.kt

package com.example.todolist


import android.os.Bundle
import androidx.appcompat.app.AppCompatActivity

class DashboardActivity : AppCompatActivity() {
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_dashboard)
    }
}

✅ 7. Set Login Sebagai Halaman Awal

Di AndroidManifest.xml:

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools">

    <application
        android:allowBackup="true"
        android:dataExtractionRules="@xml/data_extraction_rules"
        android:fullBackupContent="@xml/backup_rules"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:supportsRtl="true"
        android:theme="@style/Theme.Todolist">
        <activity
            android:name=".DashboardActivity"
            android:exported="false" />
        <activity
            android:name=".LoginActivity"
            android:exported="true">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        <activity
            android:name=".MainActivity"
            android:exported="true">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>

</manifest>

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