如何每天在Android应用程序中重复操作? [英] How to repeat an action every day in an Android app?

问题描述

我想每天重复一次动作；即使应用未运行或设备已重新启动(重新启动)，它也必须继续工作. 在我的代码中，我试图每1分钟显示一条TOAST消息(作为测试)；在模拟器中可以正常工作，但在真实设备上却无法工作(我尝试对某些问题进行修改，如我在某些答案中看到的，但仍然是同一件事)

I want to repeat an action every day; it must continue working even if the app is not running or the device has been restarted (rebooted). In my code I'm trying to show a TOAST message every 1 minute (as a test); it's working fine in the emulator but on a real device it doesn't work( i tried to do some changes to fixed as i see in some answers but still the same thing)

我的接收器

class MyReceiver : BroadcastReceiver() {
    private val channelId = "com.medanis.hikamwahimam"

    override fun onReceive(context: Context, intent: Intent) {
        Log.i("TAG","/////////////////// SHOW NOTIFICATION NOW //////////////////////")
        val builder = NotificationCompat.Builder(context, channelId)
            .setSmallIcon(R.drawable.ic_stat_name)
            .setLargeIcon(BitmapFactory.decodeResource(context.resources,R.mipmap.ic_launcher_round))
            .setContentTitle("My notification")
            .setContentText("Much longer text that cannot fit one line...")
            .setStyle(
                NotificationCompat.BigTextStyle()
                    .bigText("Much longer text that cannot fit one line...Much longer text that cannot fit one line..."))
            .setPriority(NotificationCompat.PRIORITY_DEFAULT)
        with(NotificationManagerCompat.from(context)) {
            notify(12345, builder.build()) }
        Toast.makeText(context,"This toast will be shown every X minutes", Toast.LENGTH_LONG).show()
    }
}

MainActivity

class MainActivity : AppCompatActivity() {
    private var mAlarmManager : AlarmManager? = null

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)
//        showNotification()

        val mIntent = Intent(this, MyReceiver::class.java)

        val mPendingIntent = PendingIntent.getBroadcast(this, 0, mIntent, PendingIntent.FLAG_UPDATE_CURRENT)
        mAlarmManager = this
            .getSystemService(Context.ALARM_SERVICE) as AlarmManager
        mAlarmManager!!.setRepeating(
            AlarmManager.RTC_WAKEUP, System.currentTimeMillis(),
            60000, mPendingIntent
        )
    }
}

AndroidManifest.xml

<receiver android:name=".MyReceiver" >
</receiver>

问题是:

1/-此代码不适用于REAL DEVICE.

1/- This code does not work with REAL DEVICE.

2/-如果用户重新启动设备，此代码将不起作用.

2/- This code does not work if the user restart his device.

GitHub 上的示例(我已经制作了像我的朋友建议的那样进行了一些更改，但仍然是相同的错误)

A sample on GitHub (i had made some changes as my friend had suggested but still the same errors)

推荐答案

1/-此代码不适用于REAL DEVICE.

1/- This code does not work with REAL DEVICE.

我已经下载了您的项目，并在我的设备上运行，并且可以运行，当我单击开始"时，它会显示Toast，并且每分钟都会显示.

I've downloaded your project, run on my device and it works, it shows the Toast when I click start, and every minute is showing.

我建议您看看

2/-如果用户重新启动设备，此代码将不起作用.

2/- This code does not work if the user restart his device.

如果要在重新启动或关闭设备后重新启动BroadcastReceiver，则可能需要添加以下代码:

If you want to restart your BroadcastReceiver once the device is rebooted or shut downed, you may want to add this code :

将此添加到您的manifest.xml

<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />

在manifest.xml

<receiver android:name=".BootCompletedIntentReceiver">
   <intent-filter>
     <action android:name="android.intent.action.BOOT_COMPLETED" />
   </intent-filter>
</receiver>

然后像以前一样创建BroadcastReceiver来显示Toast

And then create a BroadcastReceiver as you did previously for showing the Toast

class BootCompletedIntentReceiver : BroadcastReceiver() {

    override fun onReceive(context: Context, intent: Intent) {
        if ("android.intent.action.BOOT_COMPLETED" == intent.action) {
          //Start your old broadcastreceiver
        }
    }
}

有关更多信息，您可以查看以下

For more information you can take a look at this post

希望有帮助.

这篇关于如何每天在Android应用程序中重复操作?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！