2-3-1 토스트 보여주기

MainActivity

package com.example.boostcoursepractice;
 
import androidx.appcompat.app.AppCompatActivity;
 
import android.os.Bundle;
import android.view.Gravity;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.TextView;
import android.widget.Toast;
 
import com.google.android.material.snackbar.Snackbar;
 
public class MainActivity extends AppCompatActivity {
 
    Button btn ;
    Button btn2 ;
    Button btn3 ;
 
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
 
        btn = (Button) findViewById(R.id.button);
 
        btn.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                Toast toast = Toast.makeText(getApplicationContext(), "위치가 바뀐 토스트 메세지", Toast.LENGTH_LONG) ;
                toast.setGravity(Gravity.TOP | Gravity.LEFT, 200, 200);
                toast.show();
            }
        });
 
        btn2 = (Button) findViewById(R.id.button2);
 
        btn2.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                LayoutInflater layoutInflater = getLayoutInflater();
                View layout = layoutInflater.inflate(R.layout.toastborder, (ViewGroup)findViewById(R.id.toast_layout_root));
 
                TextView text = (TextView) layout.findViewById(R.id.tv);
                text.setText("모양을 바꾼 토스트입니다.");
 
                Toast toast = new Toast(getApplicationContext());
                toast.setGravity(Gravity.CENTER, 0, -100);
                toast.setDuration(Toast.LENGTH_LONG);
                toast.setView(layout);
 
                toast.show();
            }
        });
 
        btn3 = (Button) findViewById(R.id.button3);
 
        btn3.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                Snackbar.make(view, "스낵바 입니다.", Snackbar.LENGTH_LONG).show();
            }
        });
    }
}
 

 

drawble/toast.xml

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="rectangle">
 
    <stroke
        android:width="4dp"
        android:color="#ffffff00"/>
 
    <solid
        android:color="#ff883300" />
 
    <padding
        android:left="20dp"
        android:bottom="20dp"
        android:right="20dp"
        android:top="20dp"/>
 
    <corners
        android:radius="15dp"/>
</shape>

 

layout/activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout 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"
    tools:context=".MainActivity">
 
    <Button
        android:id="@+id/button"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="토스트 띄우기"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent" />
 
    <Button
        android:id="@+id/button2"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginStart="8dp"
        android:layout_marginLeft="8dp"
        android:layout_marginTop="56dp"
        android:layout_marginEnd="8dp"
        android:layout_marginRight="8dp"
        android:text="토스트 모양 바꾸기"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_bias="0.498"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/button" />
 
    <Button
        android:id="@+id/button3"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginTop="48dp"
        android:text="스낵바 띄우기"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_bias="0.498"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/button2" />
</androidx.constraintlayout.widget.ConstraintLayout>

 

layout/toastborder.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/toast_layout_root"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:orientation="horizontal">
 
 
    <TextView
        android:id="@+id/tv"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:background="@drawable/toast"
        android:padding="20dp"
        android:textSize="40dp" />
</LinearLayout>

 

build.gradle(Moudule:app)

apply plugin: 'com.android.application'

android {
compileSdkVersion 29
buildToolsVersion "29.0.0"
defaultConfig {
applicationId "com.example.boostcoursepractice"
minSdkVersion 15
targetSdkVersion 29
versionCode 1
versionName "1.0"
testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
}
}
}

dependencies {
implementation fileTree(dir: 'libs', include: ['*.jar'])
implementation 'androidx.appcompat:appcompat:1.0.2'
implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
testImplementation 'junit:junit:4.12'
androidTestImplementation 'androidx.test:runner:1.2.0'
androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0'
compile 'com.android.support:design:29.+'
}

 

기본적으로 Toast 메세지를 띄우는 방법

 

Toast toast = Toast.makeText(getApplicationContext(), "위치가 바뀐 토스트 메세지", Toast.LENGTH_LONG) ;

 

여기서 토스트의 위치를 바꾸려면 

 

toast.setGravity(Gravity.TOP | Gravity.LEFT, 200, 200);

 

이렇게 하면 된다. 마지막에 toast.show() 하면 토스트 출력

 

 

 

 

토스트의 모양을 바꿔주려면 일단 layout폴더에 xml파일을 만들어주자 여기서는 layout/toastborder.xml을 만들어 주었다. 후에 최상의 뷰그룹인 LinearLayout에 id를 부여한다. 여기서는 android:id="@+id/toast_layout_root 부여 이후에 다시 mainactiviy의 소스코드로 돌아와서 

 

 LayoutInflater layoutInflater = getLayoutInflater();

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

 

                TextView text = (TextView) layout.findViewById(R.id.tv);

                text.setText("모양을 바꾼 토스트입니다.");

 

                Toast toast = new Toast(getApplicationContext());

                toast.setGravity(Gravity.CENTER, 0, -100);

                toast.setDuration(Toast.LENGTH_LONG);

                toast.setView(layout);

 

                toast.show();

 

이처럼 해주면 된다. 

 

 

추가적으로 

drawble/toast라는 xml을 파일을 만든후 배경을 만들어주고 

layout/toastborder.xml의 TextView에 android:background="@drawable/toast" 이렇게 백그라운드 속성을 지정해주어 모양을 바꾼 토스트 메세지의 배경을 바꾸어 주었다.

 

스낵바의 사용은 아래와 같이 하면 된다.

Snackbar.make(view, "스낵바 입니다.", Snackbar.LENGTH_LONG).show();

단 gradle의 dependencies에 

compile 'com.android.support:design:29.+' 

를 추가해줘야만 사용할 수 있다.

 

버튼1

 

버튼2

 

버튼3