[Android] Toast & Snackbar 3: Snackbar

간단한 메시지를 보여줄 때, Toast 대신 Snackbar를 사용하는 경우도 있다. Snackbar는 Android내장 라이브러리가 아닌,외부 라이브러리이므로 Snackbar가 들어있는 Material 라이브러리를 받아야한다.

 

사용 방법은 Toast와 매우 유사하니 간단하게 화면에 띄워보는 예제만 해보자.

---

▶Snackbar 띄우기

 

◎activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout
        xmlns:android="http://schemas.android.com/apk/res/android"
        xmlns:tools="http://schemas.android.com/tools"
        xmlns:app="http://schemas.android.com/apk/res-auto"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        tools:context=".MainActivity">
    <LinearLayout
            android:orientation="horizontal"
            android:layout_width="415dp"
            android:layout_height="61dp"
            app:layout_constraintBottom_toBottomOf="parent"
            android:layout_marginBottom="596dp" app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintStart_toStartOf="parent" app:layout_constraintHorizontal_bias="0.0"
            android:id="@+id/linearLayout">
        <EditText
                android:layout_width="115dp"
                android:layout_height="wrap_content"
                android:inputType="textPersonName"
                android:hint="X 위치"
                android:ems="10"
                android:textSize="20sp"
                android:id="@+id/editText_x" android:layout_weight="1"/>
        <EditText
                android:layout_width="117dp"
                android:layout_height="wrap_content"
                android:inputType="textPersonName"
                android:hint="X 위치"
                android:ems="10"
                android:textSize="20sp"
                android:id="@+id/editText_y" android:layout_weight="1"/>
        <Button
                android:text="띄우기"
                android:textSize="20sp"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content" android:id="@+id/button" android:layout_weight="1"/>
    </LinearLayout>
    <Button
            android:text="Snackbar"
            android:layout_width="128dp"
            android:layout_height="41dp" android:id="@+id/button2"
            app:layout_constraintTop_toBottomOf="@+id/linearLayout" app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintStart_toStartOf="parent" android:layout_marginTop="8dp"
            app:layout_constraintHorizontal_bias="1.0" app:layout_constraintBottom_toBottomOf="parent"
            app:layout_constraintVertical_bias="0.0"/>
</androidx.constraintlayout.widget.ConstraintLayout>

 

◎ActivityMain.java

package com.example.toast_ex;

import android.view.Gravity;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.Toast;
import androidx.appcompat.app.AppCompatActivity;
import android.os.Bundle;
import com.google.android.material.snackbar.Snackbar;

public class MainActivity extends AppCompatActivity {
    EditText editText;
    EditText editText2;


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

        editText = findViewById(R.id.editText_x);
        editText2 = findViewById(R.id.editText_y);

        Button button = findViewById(R.id.button);

        button.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                LayoutInflater inflater = getLayoutInflater();

                View layout = inflater.inflate(
                        R.layout.toastborder,
                        (ViewGroup) findViewById(R.id.toast_layout_root)
                );

                TextView text = layout.findViewById(R.id.text1);
                text.setText("모양 바뀐 토스트");

                Toast toast = new Toast(getApplicationContext());

                int xOffset = Integer.parseInt(editText.getText().toString());
                int yOffset = Integer.parseInt(editText2.getText().toString());

                toast.setGravity(Gravity.TOP, xOffset, yOffset);
                toast.setDuration(Toast.LENGTH_LONG);
                toast.setView(layout);
                toast.show();
            }
        });

        Button button2 = findViewById(R.id.button2);

        button2.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Snackbar.make(v, "오레오 팝니다.", Snackbar.LENGTH_LONG).show();
            }
        });
    }
}