[안드로이드]Notification 간단한 알림 띄우기

이번 시간에는 간단한 알림 메시지를 띄우는 앱을 만들어 보겠습니다.

사용자가 직접 제목과 내용을 입력하고 버튼을 누르면 알림이 띄어집니다.

 

1. 알림 기능 구현(NotificationHelper.java)

 

import android.app.Notification;
import android.app.NotificationChannel;
import android.app.NotificationManager;
import android.content.Context;
import android.content.ContextWrapper;
import android.os.Build;

import androidx.annotation.RequiresApi;
import androidx.core.app.NotificationCompat;

public class NotificationHelper extends ContextWrapper {

    public static final String channel1ID = "channel1ID";
    public static final String channel1Name = "channel 1";

    private NotificationManager mManager;

    public NotificationHelper(Context base) {
        super(base);

        //오레오보다 같거나 크면
        if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.O){
            createChannels();
        }
    }

    //채널 생성
    @RequiresApi(api = Build.VERSION_CODES.O)
    public void createChannels(){

        NotificationChannel channel1 = new NotificationChannel(channel1ID, channel1Name, NotificationManager.IMPORTANCE_DEFAULT);
        channel1.enableLights(true);
        channel1.enableVibration(true);
        channel1.setLightColor(R.color.colorPrimary);
        channel1.setLockscreenVisibility(Notification.VISIBILITY_PRIVATE);

        getManager().createNotificationChannel(channel1);
    }

    public NotificationManager getManager(){
        if(mManager == null){
            mManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
        }

        return mManager;
    }

    public NotificationCompat.Builder getChannel1Notification(String title, String message){

        return new NotificationCompat.Builder(getApplicationContext(), channel1ID)
                .setContentTitle(title)
                .setContentText(message)
                .setSmallIcon(R.drawable.ic_launcher_background);
    }
}

 

2. 메인화면 구현(activity_main.xml)

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 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:orientation="vertical"
    tools:context=".MainActivity">

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

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

    <Button
        android:id="@+id/btn_Channel1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="알림 띄우기" />
</LinearLayout>

 

3. 메인기능 구현(MainActivity.java)

import androidx.appcompat.app.AppCompatActivity;
import androidx.core.app.NotificationCompat;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;

public class MainActivity extends AppCompatActivity {

    private EditText eTitle;
    private EditText eMessage;
    private Button channel1Btn;
    private NotificationHelper mNotificationhelper;

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

        eTitle = findViewById(R.id.edit_title);
        eMessage = findViewById(R.id.edit_message);
        channel1Btn = findViewById(R.id.btn_Channel1);

        mNotificationhelper = new NotificationHelper(this);

        channel1Btn.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                String title = eTitle.getText().toString();
                String message = eMessage.getText().toString();
                sendOnChannel1(title, message);
            }
        });
    }

    public void sendOnChannel1(String title, String message){
        NotificationCompat.Builder nb = mNotificationhelper.getChannel1Notification(title, message);
        mNotificationhelper.getManager().notify(1, nb.build());
    }

}

 

4. 실행화면

2020/12/24 - [안드로이드] - [안드로이드] DatePicker 달력(캘린더) 만들어보기

[안드로이드]DatePicker 달력(캘린더) 만들어보기

 

맘에 드셨다면 공감 부탁드려요 문의 댓글 환영합니다.