Membuat activity login sederhana dengan android studio

Oke sekarang saya akan membagikan cara untuk membuat login sederhana.

pertama kamu masukan dibawah kode untuk 



activity layoutnya :



<RelativeLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="#5fb0c9">

    <TextView
        android:id="@+id/login_title"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_marginBottom="16dp"
        android:layout_marginTop="22dp"
        android:gravity="center"
        android:text="@string/account_login"
        android:textColor="#fff"
        android:textSize="26sp"
        android:textStyle="bold" />

    <LinearLayout
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_below="@+id/login_title"
        android:layout_marginLeft="30dp"
        android:layout_marginRight="30dp"
        android:layout_marginTop="70dp"
        android:background="#fff"
        android:padding="20dp"
        android:orientation="vertical">

        <LinearLayout
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:orientation="vertical"
            android:paddingTop="30dp">

            <EditText
                android:id="@+id/username"
                android:layout_width="fill_parent"
                android:layout_height="wrap_content"
                android:singleLine="true"
                android:hint="@string/user_name"
                android:inputTyzpe="textEmailAddress" />

            <EditText
                android:id="@+id/password"
                android:layout_width="fill_parent"
                android:layout_height="wrap_content"
                android:layout_marginTop="16dp"
                android:singleLine="true"
                android:hint="@string/password"
                android:inputType="textPassword"/>

            <TextView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_gravity="right"
                android:paddingTop="5dp"
                android:text="@string/forgot_password"
                tools:ignore="RtlHardcoded" />


            <Button
                android:layout_width="fill_parent"
                android:layout_height="wrap_content"
                android:layout_margin="22dp"
                android:background="#d67601"
                android:text="@string/sign_in"
                android:textAllCaps="false"
                android:textColor="#fff"
                android:textSize="18sp"
                android:onClick="ButtonLogin"/>
        </LinearLayout>
    </LinearLayout>

    <ImageView
        android:id="@+id/imageView"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@+id/login_title"
        android:paddingTop="35dp"
        android:layout_centerHorizontal="true"
        app:srcCompat="@mipmap/ic_launcher_round"
        tools:ignore="ContentDescription" />

</RelativeLayout>

untuk class activity_login :


import android.content.Intent;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.EditText;
import android.widget.Toast;

public class LoginActivity extends AppCompatActivity{

    public static final String EXTRA_MESSAGE = "com.example.myfirstapp.MESSAGE";
    public static final String EXTRA_MESSAGE2 = "com.example.myfirstapp.MESSAGE2";

    @Override    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_login);
    }

    public void ButtonLogin(View view){
        Toast.makeText(this, "Login Bro!", Toast.LENGTH_SHORT).show();
        EditText editText = (EditText) findViewById(R.id.username);
        String message = editText.getText().toString();
        EditText editText2 = (EditText) findViewById(R.id.password);
        String message2 = editText2.getText().toString();

        if(message.equals("saya")&&message2.equals("test")){

            Intent intent = new Intent(this, MainActivity.class);
            intent.putExtra(EXTRA_MESSAGE, message);
            intent.putExtra(EXTRA_MESSAGE2, message2);
            startActivity(intent);
        }


    }
}

activity Main :

import android.content.Intent;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.widget.TextView;

public class MainActivity extends AppCompatActivity {

    @Override    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        // Get the Intent that started this activity and extract the string        Intent intent = getIntent();
        String message = intent.getStringExtra(LoginActivity.EXTRA_MESSAGE);

        // Capture the layout's TextView and set the string as its text        TextView textView = findViewById(R.id.title_main);
        textView.setText("WELCOME "+message);
    }
}



untuk penerapan bisa lihat vidio dibawah:




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