안드로이드 알람 앱

조회수 1459회

지금 안드로이드 알람 앱을 만들고 있는데 원하는 작동 방식은 이렇습니다

timepicker로 알람 시간 설정 - AlarmManger로 알람 시간마다 하루에 한 번씩 intent - BroadcastReciever가 이걸 받아서 노티피케이션을 띄우고 서비스로 intent - 서비스 onStartCommand()에서 alarmActivity 호출

근데 실행 조건에 따라 작동이 되다가 안되다가 또 앱을 실행 중이지 않은 백그라운드 상황에선 노티피케이션만 뜨거나 아예 작동조차 안합니다. 여기에 코드만 적어선 설명이 부족할 것 같으니 깃헙 레퍼지토리도 같이 올립니다. SettingAlarmFragment.java, AlarmReceiver.java, AlarmService.java, AlarmActivity.java 중점으로 보시면 되겠습니다. (레퍼지토리 내용과 이 글 내용에 차이가 있을 수 있습니다.)

SettingAlarmFragment.java

package com.example.alarm;

import android.annotation.SuppressLint;
import android.app.AlarmManager;
import android.app.PendingIntent;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.os.Build;
import android.os.Bundle;

import androidx.annotation.NonNull;
import androidx.fragment.app.Fragment;

import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.TextView;
import android.widget.TimePicker;
import android.widget.Toast;

import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Locale;
import java.util.Objects;

import static android.app.AlarmManager.INTERVAL_DAY;
import static android.content.Context.ALARM_SERVICE;

public class SettingAlarmFragment extends Fragment {

    // 알람 시간
    private Calendar calendar;
    private TimePicker timePicker;
    private PendingIntent alarmIntent;
    private AlarmManager alarmManager;

    Context context;

    SharedPreferences sharedPrefer;
    SharedPreferences.Editor editor;

    @Override
    public void onAttach(@NonNull Context context) {
        super.onAttach(context);
        this.context = context;
    }

    @SuppressLint("CommitPrefEdits")
    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {

        ViewGroup viewGroup = (ViewGroup) inflater.inflate(R.layout.fragment_setting_alarm, container, false);

        /*alarm*/
        calendar = Calendar.getInstance();

        // 현재 날짜 표시
        displayDate(viewGroup);

        this.timePicker = viewGroup.findViewById(R.id.timePicker);

        editor = context.getSharedPreferences("school", Context.MODE_PRIVATE).edit();
        sharedPrefer = context.getSharedPreferences("school", Context.MODE_PRIVATE);

        Button registerButton = viewGroup.findViewById(R.id.btnRegist);
        registerButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                register();
            }
        });

        Button unRegisterButton = viewGroup.findViewById(R.id.btnUnregist);
        unRegisterButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {

                if (sharedPrefer.getString("alarm_time", "").equals("")){
                    Toast.makeText(context, "해지 할 알람이 없음", Toast.LENGTH_SHORT).show();
                }else{
                    unRegister();
                }

            }
        });
        return viewGroup;
    }

    /* 날짜 표시 */
    private void displayDate(ViewGroup viewGroup) {
        SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd", Locale.getDefault());
        ((TextView) viewGroup.findViewById(R.id.txtDate)).setText(format.format(calendar.getTime()));
    }

    /* 알람 등록 */

    private void register() {

        // 알람 시간 설정
        calendar.setTimeInMillis(System.currentTimeMillis());
        calendar.set(Calendar.HOUR_OF_DAY, this.timePicker.getHour());
        calendar.set(Calendar.MINUTE, this.timePicker.getMinute());
        calendar.set(Calendar.SECOND, 0);

        editor.putString("alarm_time", timePicker.getHour()+"시 "+timePicker.getMinute()+"분");
        editor.apply();

        // Receiver 설정
        Intent intent = new Intent(context, AlarmReceiver.class);
        PendingIntent pendingIntent = PendingIntent.getBroadcast(context, 0, intent, PendingIntent.FLAG_CANCEL_CURRENT);

        // 알람 설정
        alarmManager = (AlarmManager) context.getSystemService(ALARM_SERVICE);
        if (calendar.before(Calendar.getInstance())){
            calendar.add(Calendar.DATE, 1);
            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
                alarmManager.setExactAndAllowWhileIdle(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(), pendingIntent);
            }
            else {
                alarmManager.setInexactRepeating(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(), AlarmManager.INTERVAL_DAY, alarmIntent);
            }
        }
        else{
            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
                alarmManager.setExactAndAllowWhileIdle(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(), pendingIntent);
            }
            else {
                alarmManager.setInexactRepeating(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(), AlarmManager.INTERVAL_DAY, alarmIntent);
            }
        }

        // Toast 보여주기 (알람 시간 표시)
        SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss", Locale.getDefault());
        Toast.makeText(context, "Alarm : " + format.format(calendar.getTime()), Toast.LENGTH_SHORT).show();
    }

    private void unRegister() {
        Intent intent = new Intent (context.getApplicationContext(), AlarmReceiver.class);
        PendingIntent pendingIntent = PendingIntent.getBroadcast(context, 0, intent, PendingIntent.FLAG_CANCEL_CURRENT);

        editor.putString("alarm_time", "");
        editor.apply();

        alarmManager.cancel(pendingIntent);
        //Toast 보여주기
        Toast.makeText(getContext(), "알람이 해지되었습니다.", Toast.LENGTH_SHORT).show();
    }



}

AlarmReceiver.java

package com.example.alarm;

import android.app.Activity;
import android.app.AlarmManager;
import android.app.NotificationChannel;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.os.Build;
import android.os.PowerManager;
import android.widget.Toast;

import androidx.core.app.NotificationCompat;

import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.Locale;

import static android.content.Context.MODE_PRIVATE;

public class AlarmReceiver extends BroadcastReceiver {
    @Override
    public void onReceive(Context context, Intent intent) {

        NotificationManager notificationManager = (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);
        Intent notificationIntent = new Intent(context, AlarmActivity.class);

        notificationIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK);

        PendingIntent pendingI = PendingIntent.getActivity(context, 0,
                notificationIntent, 0);

        NotificationCompat.Builder builder = new NotificationCompat.Builder(context, "default");

        Intent service_intent = new Intent(context, AlarmService.class);


        //OREO API 26 이상에서는 채널 필요
        if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.O) {

            builder.setSmallIcon(R.drawable.ic_launcher_foreground); //mipmap 사용시 Oreo 이상에서 시스템 UI 에러남


            String channelName ="매일 알람 채널";
            String description = "매일 정해진 시간에 알람합니다.";
            int importance = NotificationManager.IMPORTANCE_HIGH; //소리와 알림메시지를 같이 보여줌

            NotificationChannel channel = new NotificationChannel("default", channelName, importance);
            channel.setDescription(description);

            context.startForegroundService(service_intent);
            context.startService(service_intent);

            if (notificationManager != null) {
                // 노티피케이션 채널을 시스템에 등록
                notificationManager.createNotificationChannel(channel);

            }
        }
        else {
            builder.setSmallIcon(R.mipmap.ic_launcher); // Oreo 이하에서 mipmap 사용하지 않으면 Couldn't create icon: StatusBarIcon 에러남

            context.startActivity(service_intent);
        }


        builder.setAutoCancel(true)
                .setDefaults(NotificationCompat.DEFAULT_ALL)
                .setWhen(System.currentTimeMillis())

                .setTicker("{Time to watch some cool stuff!}")
                .setContentTitle("상태바 드래그시 보이는 타이틀")
                .setContentText("상태바 드래그시 보이는 서브타이틀")
                .setContentInfo("INFO")
                .setContentIntent(pendingI);

        if (notificationManager != null) {

            if (Build.VERSION.SDK_INT <= Build.VERSION_CODES.P) {
                PowerManager powerManager = (PowerManager) context.getSystemService(Context.POWER_SERVICE);
                PowerManager.WakeLock wakeLock = powerManager.newWakeLock(PowerManager.FULL_WAKE_LOCK |
                        PowerManager.ACQUIRE_CAUSES_WAKEUP |
                        PowerManager.ON_AFTER_RELEASE, "My:Tag");
                wakeLock.acquire(5000);
            }

            // 노티피케이션 동작시킴
            notificationManager.notify(1234, builder.build());

            Calendar nextNotifyTime = Calendar.getInstance();

            // 내일 같은 시간으로 알람시간 결정
            nextNotifyTime.add(Calendar.DATE, 1);

            //  Preference에 설정한 값 저장
            SharedPreferences.Editor editor = context.getSharedPreferences("daily alarm", MODE_PRIVATE).edit();
            editor.putLong("nextNotifyTime", nextNotifyTime.getTimeInMillis());
            editor.apply();

            Date currentDateTime = nextNotifyTime.getTime();
            String date_text = new SimpleDateFormat("yyyy년 MM월 dd일 EE요일 a hh시 mm분 ", Locale.getDefault()).format(currentDateTime);
            Toast.makeText(context.getApplicationContext(),"다음 알람은 " + date_text + "으로 알람이 설정되었습니다!", Toast.LENGTH_SHORT).show();

        }


        }
}


AlarmService.java

package com.example.alarm;

import android.app.Notification;
import android.app.NotificationChannel;
import android.app.NotificationManager;
import android.app.Service;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.os.Build;
import android.os.IBinder;
import androidx.annotation.Nullable;
import androidx.annotation.RequiresApi;
import androidx.core.app.NotificationCompat;
import android.util.Log;
import android.widget.Toast;

public class AlarmService extends Service {

    @Nullable
    @Override
    public IBinder onBind(Intent intent) {
        return null;
    }

    @Override
    public int onStartCommand(Intent intent, int flags, int startId) {
        Intent intent1 = new Intent(this, AlarmActivity.class);
        Toast.makeText(this,"service", Toast.LENGTH_LONG).show();
        startActivity(intent1.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TOP));
        return START_NOT_STICKY;

    }

}

AlarmActivity.java

package com.example.alarm;

import android.content.Context;
import android.content.Intent;
import android.media.AudioManager;
import android.media.MediaPlayer;
import android.os.Bundle;
import androidx.appcompat.app.AppCompatActivity;

import android.os.Vibrator;
import android.view.KeyEvent;
import android.view.View;
import android.view.WindowManager;
import android.widget.Button;

import com.google.android.gms.ads.AdRequest;
import com.google.android.gms.ads.AdView;
import com.google.android.gms.ads.MobileAds;
import com.google.android.gms.ads.initialization.InitializationStatus;
import com.google.android.gms.ads.initialization.OnInitializationCompleteListener;

public class AlarmActivity extends AppCompatActivity {

    private Vibrator vib;
    private MediaPlayer mediaPlayer;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_alarm);
        vib = (Vibrator)getSystemService(Context.VIBRATOR_SERVICE);

        getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON
                | WindowManager.LayoutParams.FLAG_DISMISS_KEYGUARD
                | WindowManager.LayoutParams.FLAG_TURN_SCREEN_ON
                | WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED);

        // 진동, 알람음 재생
        vib.vibrate(new long[]{500,1000}, 0);
        this.mediaPlayer = MediaPlayer.create(this, R.raw.ring_tone);
        this.mediaPlayer.setLooping(true);
        this.mediaPlayer.start();

        Button closeButton = findViewById(R.id.btnClose);
        closeButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                Intent intent = new Intent(AlarmActivity.this, WebViewActivity.class);
                startActivity(intent);
                mediaPlayerclose();
            }
        });

        // TODO 벨소리 볼륨 항상 최대로 고정시키기
/*        AudioManager mAudioManager = (AudioManager)getSystemService(Context.AUDIO_SERVICE);

        mAudioManager.setStreamVolume(AudioManager.STREAM_RING,
                (mAudioManager.getStreamMaxVolume(AudioManager.STREAM_RING)),
                AudioManager.FLAG_PLAY_SOUND);

        mAudioManager.isVolumeFixed();*/

        addAd();
    }

    @Override
    protected void onDestroy() {
        super.onDestroy();

        // MediaPlayer release
        if (this.mediaPlayer != null) {
            this.mediaPlayer.release();
            this.mediaPlayer = null;
        }
    }

    /* 알람 종료 */
    private void mediaPlayerclose() {
        if (this.mediaPlayer.isPlaying()) {
            this.mediaPlayer.stop();
            this.mediaPlayer.release();
            this.mediaPlayer = null;
            this.vib.cancel();
        }

        finish();
    }

    public void addAd(){
        MobileAds.initialize(this, new OnInitializationCompleteListener() {
            @Override
            public void onInitializationComplete(InitializationStatus initializationStatus) {

            }
        });

        AdView mAdView = findViewById(R.id.adView);
        AdRequest adRequest = new AdRequest.Builder().build();
        mAdView.loadAd(adRequest);
    }
}

https://github.com/bentshrimp/OnlineClassAlarm ㄹㅇ 아무리 해도 안 고쳐져서 막연한 마음에 이렇게라도 올리는거임. 이 뉴비한텐 의지할 곳이 이제 여기밖에 없어

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