TellMeNotice/app/src/main/java/com/itrycn/tellmenotice/MainActivity.java

package com.itrycn.tellmenotice;

import androidx.appcompat.app.AppCompatActivity;

import android.content.ActivityNotFoundException;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.media.AudioManager;
import android.net.Uri;
import android.os.Bundle;
import android.provider.Settings;
import android.text.TextUtils;
import android.view.View;
import android.widget.TextView;
import android.widget.Toast;

import java.util.Calendar;

public class MainActivity extends AppCompatActivity {
    ScreenListener screenlistener;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        if(!isNotificationListenersEnabled())
        {
            gotoNotificationAccessSetting(MainActivity.this);
        }
        Intent intent2 = new Intent(MainActivity.this,NoticeService.class);
        startService(intent2);
        startFloatingButtonService();
        TextView tv=findViewById(R.id.IdState);
        tv.setText("睿元智能管家,你的私人管家。\n" +
                "1.帮你监控系统通知，自动筛选重要通知。\n" +
                "2.不同通知展现不同的提醒界面和声音。\n" +
                "3.支持免打扰功能,深夜自动免打扰。");
        ScreenListener screenlistener = new ScreenListener(this);
        screenlistener.begin(new ScreenListener.ScreenStateListener() {

            @Override
            public void onUserPresent() {
                //Log.e("onUserPresent", "onUserPresent");
            }

            @Override
            public void onScreenOn() {
                //Log.e("onScreenOn", "onScreenOn");
            }

            @Override
            public void onScreenOff() {
                //region 关闭屏幕自动将通知音量调整到最大
                Calendar c = Calendar.getInstance();
                int hour = c.get(Calendar.HOUR_OF_DAY); // 时
                if(hour>=23 || hour<7) {return; } //23点到早上7点,免打扰时间段
                AudioManager audioManager = (AudioManager) MainActivity.this.getSystemService(Context.AUDIO_SERVICE);
                int NoticeVolume= audioManager.getStreamVolume(AudioManager.STREAM_NOTIFICATION);
                int NoticeMaxVolume= audioManager.getStreamMaxVolume(AudioManager.STREAM_NOTIFICATION);
                if(NoticeVolume<NoticeMaxVolume)
                {
                    audioManager.setStreamVolume(AudioManager.STREAM_NOTIFICATION, NoticeMaxVolume, AudioManager.FLAG_VIBRATE);
                }
                //endregion
                //Log.e("onScreenOff", "onScreenOff");
            }
        });
    }
    @Override
    protected void onDestroy() {
        screenlistener.unregisterListener();
        super.onDestroy();
    }
    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
        if (requestCode == 0) {
            if (!Settings.canDrawOverlays(this)) {
                Toast.makeText(this, "授权失败", Toast.LENGTH_SHORT).show();
            } else {
                Toast.makeText(this, "授权成功", Toast.LENGTH_SHORT).show();
            }
        }
    }
    private static final String ENABLED_NOTIFICATION_LISTENERS = "enabled_notification_listeners";
    private boolean isNotificationListenersEnabled () {
        String pkgName = getPackageName();
        final String flat = Settings.Secure.getString(getContentResolver(), ENABLED_NOTIFICATION_LISTENERS);
        if (!TextUtils.isEmpty(flat)) {
            final String[] names = flat.split(":");
            for (int i = 0; i < names.length; i++) {
                final ComponentName cn = ComponentName.unflattenFromString(names[i]);
                if (cn != null) {
                    if (TextUtils.equals(pkgName, cn.getPackageName())) {
                        return true;
                    }
                }
            }
        }
        return false;
    }
    public static boolean gotoNotificationAccessSetting(Context context) {
        try {
            Intent intent = new Intent("android.settings.ACTION_NOTIFICATION_LISTENER_SETTINGS");
            intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
            context.startActivity(intent);
            return true;

        } catch (ActivityNotFoundException e) {//普通情况下找不到的时候需要再特殊处理找一次
            try {
                Intent intent = new Intent();
                intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
                ComponentName cn = new ComponentName("com.android.settings", "com.android.settings.Settings$NotificationAccessSettingsActivity");
                intent.setComponent(cn);
                intent.putExtra(":settings:show_fragment", "NotificationAccessSettings");
                context.startActivity(intent);
                return true;
            } catch (Exception e1) {
                e1.printStackTrace();
            }
            Toast.makeText(context, "对不起，您的手机暂不支持", Toast.LENGTH_SHORT).show();
            e.printStackTrace();
            return false;
        }
    }
    public void startFloatingButtonService() {
            if (NoticeService.isStarted) {
            return;
        }
        if (!Settings.canDrawOverlays(this)) {
            Toast.makeText(this, "当前无权限，请授权", Toast.LENGTH_SHORT);
            startActivityForResult(new Intent(Settings.ACTION_MANAGE_OVERLAY_PERMISSION, Uri.parse("package:" + getPackageName())), 0);
        }
    }

}