Android 久坐提醒实现：弹窗通知与完整代码示例

以下是一个使用Android实现久坐提醒的示例代码，该代码会通过弹窗和通知提醒用户起身活动。

MainActivity.java

import android.app.AlertDialog;
import android.app.Notification;
import android.app.NotificationChannel;
import android.app.NotificationManager;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.os.Build;
import android.os.Bundle;
import android.os.Handler;
import android.view.WindowManager;

import androidx.appcompat.app.AppCompatActivity;
import androidx.core.app.NotificationCompat;

public class MainActivity extends AppCompatActivity {

    private static final int REMINDER_INTERVAL = 60 * 60 * 1000; // 1小时提醒一次
    private static final int NOTIFICATION_ID = 1;
    private static final String CHANNEL_ID = "Sedentary Reminder";

    private Handler handler;
    private Runnable reminderRunnable;

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

        // 创建Notification Channel（适用于Android 8.0以上版本）
        createNotificationChannel();

        // 初始化Handler和Runnable
        handler = new Handler();
        reminderRunnable = new Runnable() {
            @Override
            public void run() {
                showReminderDialog();
            }
        };

        // 启动定时提醒
        startReminder();
    }

    @Override
    protected void onDestroy() {
        super.onDestroy();
        // 停止定时提醒
        stopReminder();
    }

    private void startReminder() {
        handler.postDelayed(reminderRunnable, REMINDER_INTERVAL);
    }

    private void stopReminder() {
        handler.removeCallbacks(reminderRunnable);
    }

    private void showReminderDialog() {
        AlertDialog.Builder builder = new AlertDialog.Builder(this);
        builder.setTitle('久坐提醒');
        builder.setMessage('您已经连续坐了很长时间了，请起身活动一下。');
        builder.setPositiveButton('确定', new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialog, int which) {
                dialog.dismiss();
                startReminder(); // 继续下一次提醒
            }
        });
        builder.setOnCancelListener(new DialogInterface.OnCancelListener() {
            @Override
            public void onCancel(DialogInterface dialog) {
                startReminder(); // 继续下一次提醒
            }
        });
        builder.show();

        // 显示Notification
        showNotification();
    }

    private void showNotification() {
        NotificationCompat.Builder builder = new NotificationCompat.Builder(this, CHANNEL_ID)
                .setSmallIcon(R.drawable.ic_notification)
                .setContentTitle('久坐提醒')
                .setContentText('您已经连续坐了很长时间了，请起身活动一下。')
                .setPriority(NotificationCompat.PRIORITY_DEFAULT)
                .setAutoCancel(true);

        NotificationManager notificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
        notificationManager.notify(NOTIFICATION_ID, builder.build());
    }

    private void createNotificationChannel() {
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
            CharSequence name = '久坐提醒';
            String description = '久坐提醒通知';
            int importance = NotificationManager.IMPORTANCE_DEFAULT;
            NotificationChannel channel = new NotificationChannel(CHANNEL_ID, name, importance);
            channel.setDescription(description);

            NotificationManager notificationManager = getSystemService(NotificationManager.class);
            notificationManager.createNotificationChannel(channel);
        }
    }
}

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="#ffffff"
    android:padding="16dp"
    tools:context=".MainActivity">

    <!-- 添加其他界面元素 -->

</RelativeLayout>

ic_notification.xml (放在res/drawable目录下)

<vector xmlns:android="http://schemas.android.com/apk/res/android"
    android:width="24dp"
    android:height="24dp"
    android:viewportWidth="24.0"
    android:viewportHeight="24.0">
    <path
        android:fillColor="#000000"
        android:pathData="M12,2L10.59,3.41 5.17,8.83 4.41,8.07 3,9.46V12c0,6.63 5.37,12 12,12s12,-5.37 12,-12S18.63,0 12,0L12,2zM11,17h2v2h-2v-2zM11,7h2v6h-2V7z"/>
</vector>

请确保将上述代码中的R.drawable.ic_notification替换为您自己的通知图标。此外，还需要在AndroidManifest.xml中添加必要的权限和声明MainActivity。

注意:

• 代码中使用了REMINDER_INTERVAL来设置提醒的间隔时间，默认值为1小时。您可以根据需要修改该值。
• 在AndroidManifest.xml中添加android.permission.VIBRATE权限，以允许震动提醒。
• 在AndroidManifest.xml中添加android.permission.RECEIVE_BOOT_COMPLETED权限，以允许在设备启动时启动定时提醒服务。
• 该代码仅供参考，您可能需要根据您的实际需求进行调整。