使用Gluon mobile中的ALARM_服务在Android中计划任务

到目前为止，我已经参考并尝试了这段代码。但我不知道如何在gluon mobile中实现这段代码。我想做的是，我想开始一个缩进，在特定时间在后台做一些工作。我的问题是我不知道gluon mobile的行为。所以请帮助我完成它。

package com.application;

import java.util.Calendar;

import android.app.AlarmManager; 
import android.app.PendingIntent;
import android.content.Context;
import android.content.Intent;
import javafxports.android.FXActivity;

 public class Schedular {

AlarmManager manager=null;
FXActivity activity=null;
  public Schedular()
{
 manager=(AlarmManager) FXActivity.getInstance().getSystemService(Context.ALARM_SERVICE);
  activity=FXActivity.getInstance();
}

public void schedule()
{

    Intent indent = new Intent(activity,Alarm.class);
    PendingIntent pIntent = PendingIntent.getBroadcast(activity, 0, indent, 0);

manager.set(AlarmManager.RTC_WAKEUP, SystemClock.elapsedRealtime()+2*1000,indent);  //This is Where I went Wrong

}
}

我想在用户在运行时指定的特定时间安排任务，这就是函数public void schedule（日历日历，布尔标志）的作用。

报警类

 public class Alarm extends BroadcastReceiver
 {

 @Override
 public void onReceive(Context context, Intent intent)
 {

     // Your code to execute when the alarm triggers
     // and the broadcast is received.   
    new bluetooth.turnOn();  
 }

--------- beginning of crash
07-22 09:21:44.878 13516 13516 E AndroidRuntime: FATAL EXCEPTION: main
07-22 09:21:44.878 13516 13516 E AndroidRuntime: Process:    com.application, PID: 13516
07-22 09:21:44.878 13516 13516 E AndroidRuntime: java.lang.RuntimeException: Unable to instantiate receiver com.application.Alarm: java.lang.IllegalAccessException: java.lang.Class<com.application.Alarm> is not accessible from java.lang.Class<android.app.ActivityThread>
 07-22 09:21:44.878 13516 13516 E AndroidRuntime:        at android.app.ActivityThread.handleReceiver(ActivityThread.java:2739)
 07-22 09:21:44.878 13516 13516 E AndroidRuntime:        at android.app.ActivityThread.access$1900(ActivityThread.java:153)
 07-22 09:21:44.878 13516 13516 E AndroidRuntime:        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1452)
 07-22 09:21:44.878 13516 13516 E AndroidRuntime:        at android.os.Handler.dispatchMessage(Handler.java:102)
 07-22 09:21:44.878 13516 13516 E AndroidRuntime:        at android.os.Looper.loop(Looper.java:154)
07-22 09:21:44.878 13516 13516 E AndroidRuntime:        at android.app.ActivityThread.main(ActivityThread.java:5529)
07-22 09:21:44.878 13516 13516 E AndroidRuntime:        at java.lang.reflect.Method.invoke(Native Method)
07-22 09:21:44.878 13516 13516 E AndroidRuntime:        at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:739)
07-22 09:21:44.878 13516 13516 E AndroidRuntime:        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:629)
07-22 09:21:44.878 13516 13516 E AndroidRuntime: Caused by: java.lang.IllegalAccessException: java.lang.Class<com.application.Alarm> is not accessible from java.lang.Class<android.app.ActivityThread>
07-22 09:21:44.878 13516 13516 E AndroidRuntime:        at java.lang.Class.newInstance(Native Method)
07-22 09:21:44.878 13516 13516 E AndroidRuntime:        at android.app.ActivityThread.handleReceiver(ActivityThread.java:2734)
07-22 09:21:44.878 13516 13516 E AndroidRuntime:        ... 8 more
07-22 09:21:44.885  1804  3742 D StatusBar: onNotificationPosted:  Key: 0|com.application|123456|charm://down/Id/abcd12340|10276 GroupKey: 0|com.application|123456|charm://down/Id/abcd12340|10276 Connected: true
07-22 09:21:44.885  1804  1804 D StatusBar:  GroupChild: false  GroupsContainsKey: false  IsUpdate: false IsGroupSummary: false hasIcon: true
07-22 09:21:44.886  1804  1804 D PhoneStatusBar: addNotification pkg=com.application;basepkg=com.application;id=123456
07-22 09:21:44.888  3047 10359 I GCoreUlr: Successfully inserted 1 locations
07-22 09:21:44.922  1804  1804 W ProgressBarDelegate: Unknown Drawable subclass, src=android.graphics.drawable.ScaleDrawable@eb9196
07-22 09:21:44.922  1804  1804 W ProgressBarDelegate: Unknown Drawable subclass, src=android.graphics.drawable.ScaleDrawable@aace117
07-22 09:21:44.932  3451  3518 I octvm_klo: klo lock

我已将Alarm.class添加到AndroidManifest.xml中，如下所示

 <?xml version="1.0" encoding="UTF-8"?>
 <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.application" android:versionCode="1" android:versionName="1.0">
    <supports-screens android:xlargeScreens="true"/>

    <uses-permission android:name="android.permission.INTERNET"/>
    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
    <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
    <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
    <uses-permission android:name="android.permission.CHANGE_WIFI_STATE" />

    <uses-sdk android:minSdkVersion="3" android:targetSdkVersion="26"/>


    <application android:label="Wifischeduler" android:name="android.support.multidex.MultiDexApplication" android:icon="@mipmap/ic_launcher">

            <activity android:name="javafxports.android.FXActivity" android:label="Wifischeduler" android:configChanges="orientation|screenSize">
                    <meta-data android:name="main.class" android:value="com.application.Main"/>
                    <meta-data android:name="debug.port" android:value="0"/>
                    <intent-filter>
                            <action android:name="android.intent.action.MAIN"/>
                            <category android:name="android.intent.category.LAUNCHER"/>
                    </intent-filter>
            </activity>

        <activity android:name="com.gluonhq.impl.charm.down.plugins.android.NotificationActivity"
                       android:parentActivityName="javafxports.android.FXActivity">
           <meta-data android:name="android.support.PARENT_ACTIVITY" 
                 android:value="javafxports.android.FXActivity"/>
     </activity>

 <activity android:name="com.application.AndroidPlatform$PermissionRequestActivity" />

<receiver android:name="com.application.Alarm"  />  // this is where I have included the Alarm.class

<receiver android:name="com.gluonhq.impl.charm.down.plugins.android.AlarmReceiver" />


    </application>

替换缩进

借

manager.setRepeating（AlarmManager.RTC_WAKEUP，calendar.getTimeInMillis（），10L，pIntent）

同样，向indent的构造函数传递所需的“活动”或“服务”

---

您的代码并不完全适合我：我必须在

schedule（）

中将

intent

更改为

pIntent

，并且在Java实现中将

schedule

更改为

Class

（您如何导入它？）。除此之外，它对我来说运行良好（使用Android target 25），我没有任何例外

我将发布初始解决方案（基于您的方法），然后发布更好的方法

初始解 虽然添加特定于平台的代码的首选方法是遵循Charm Down设计模式（请参阅），但让Android代码正常工作的一种非常快速和肮脏的方法是：

Android

Scheduler.java

AlarmReceiver.java

AndroidManifest.xml

BasicView.java

格雷德尔先生

部署到Android设备（

/gradlew androidInstall

）并运行。按下按钮，两秒钟后，您将看到祝酒词：

首选解决方案 报警服务

虽然上面的代码可以工作，但是使用

Class.forName

不是很方便

遵循Charm Down服务（例如LocalNotification），我将改为这样做（您必须保持相同的包名）：

Java

AlarmService.java

AlarmServiceFactory.java

（保持与上面相同的

AlarmReceiver

等级）

最后，你认为：

BasicView.java

现在您可以部署并再次运行，结果将是相同的。但显然，这种首选方式有更多的优势

• 使用该服务，您还可以在桌面上运行或部署到iOS：该应用程序将工作（单击按钮时，它不会做任何事情）
• 如果需要，您可以实施桌面和iOS解决方案
• 您可以通过该界面轻松添加更多功能

---

您面临的问题是什么？我不知道如何在特定的时间开始缩进？让我们假设我想在特定的时间启动蓝牙缩进如何实现@ManiForBluetooth很好地引用了这一点，我已经按照建议进行了修改，但仍然无法工作！我不知道我哪里出错了！缩进中的上下文是什么意思？根据您的代码，它应该是FXActivity.getInstance（）。它是一个活动/应用程序实例！AlarmReceiver.class是做什么的，它是预定义的？这是另一个活动，在你的情况下，你可以定义一个服务来启动蓝牙设置扫描你能给我举个例子吗？我会用你的方式试试@JosePereda关于@JosePereda有什么想法吗

@FXML void start()
{

    try{

    Schedule schedule =(Schedule) Class.forName("com.application.Schedular").newInstance();


    schedule.schedule();

    }

Intent intent = new Intent(context, AlarmReceiver.class); //AlarmReceiver is an activity that will be launched after an hour
PendingIntent pIntent = PendingIntent.getBroadcast(context, 0, intent, 0);

alarmMgr.set(AlarmManager.ELAPSED_REALTIME_WAKEUP,
        SystemClock.elapsedRealtime() +
        60 * 1000, pIntent); //60mins from now

package com.gluonhq.scheduler.android;

import android.app.AlarmManager;
import android.app.PendingIntent;
import android.content.Context;
import android.content.Intent;
import android.os.SystemClock;
import javafxports.android.FXActivity;

public class Scheduler {

    private final AlarmManager manager;

    public Scheduler() {
        manager = (AlarmManager) FXActivity.getInstance().getSystemService(Context.ALARM_SERVICE);
        Intent indent = new Intent(FXActivity.getInstance(), AlarmReceiver.class);
        PendingIntent pIntent = PendingIntent.getBroadcast(FXActivity.getInstance(), 0, indent, 0);

        manager.set(AlarmManager.RTC_WAKEUP, SystemClock.elapsedRealtime() + 2000, pIntent); 
    }
}

package com.gluonhq.scheduler.android;

import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.widget.Toast;

public class AlarmReceiver extends BroadcastReceiver {

    @Override
    public void onReceive(Context context, Intent intent) {
        Toast.makeText(context, "Alarm ON", Toast.LENGTH_LONG).show();
    }

}

<?xml version="1.0" encoding="UTF-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.gluonhq.scheduler" android:versionCode="1" android:versionName="1.0">
        <supports-screens android:xlargeScreens="true"/>
        <uses-permission android:name="android.permission.INTERNET"/>
        <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>
        <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
        <uses-sdk android:minSdkVersion="4" android:targetSdkVersion="25"/>
        <application android:label="GluonScheduler" android:name="android.support.multidex.MultiDexApplication" android:icon="@mipmap/ic_launcher">
                <activity android:name="javafxports.android.FXActivity" android:label="GluonScheduler" android:configChanges="orientation|screenSize">
                        <meta-data android:name="main.class" android:value="com.gluonhq.scheduler.GluonScheduler"/>
                        <meta-data android:name="debug.port" android:value="0"/>
                        <intent-filter>
                                <action android:name="android.intent.action.MAIN"/>
                                <category android:name="android.intent.category.LAUNCHER"/>
                        </intent-filter>
                </activity>
                <receiver android:name="com.gluonhq.scheduler.android.AlarmReceiver" />
        </application>
</manifest

package com.gluonhq.scheduler;

import com.gluonhq.charm.glisten.application.MobileApplication;
import com.gluonhq.charm.glisten.visual.Swatch;
import javafx.scene.Scene;
import javafx.scene.image.Image;
import javafx.stage.Stage;

public class GluonScheduler extends MobileApplication {

    public static final String BASIC_VIEW = HOME_VIEW;

    @Override
    public void init() {
        addViewFactory(BASIC_VIEW, () -> new BasicView(BASIC_VIEW));
    }

    @Override
    public void postInit(Scene scene) {
        Swatch.BLUE.assignTo(scene);

        ((Stage) scene.getWindow()).getIcons().add(new Image(GluonScheduler.class.getResourceAsStream("/icon.png")));
    }
}

package com.gluonhq.scheduler;

import com.gluonhq.charm.glisten.control.AppBar;
import com.gluonhq.charm.glisten.control.Icon;
import com.gluonhq.charm.glisten.mvc.View;
import com.gluonhq.charm.glisten.visual.MaterialDesignIcon;
import java.util.logging.Level;
import java.util.logging.Logger;
import javafx.geometry.Pos;
import javafx.scene.control.Button;
import javafx.scene.layout.VBox;

public class BasicView extends View {

    public BasicView(String name) {
        super(name);

        Button button = new Button("Schedule task");
        button.setGraphic(new Icon(MaterialDesignIcon.ALARM_ON));
        button.setOnAction(e -> {

            try {
                Class c = Class.forName("com.gluonhq.scheduler.android.Scheduler");
                c.newInstance();
            } catch (ClassNotFoundException | InstantiationException | IllegalAccessException ex) {
                Logger.getLogger(BasicView.class.getName()).log(Level.SEVERE, null, ex);
            }

        });

        VBox controls = new VBox(button);
        controls.setAlignment(Pos.CENTER);

        setCenter(controls);
    }

    @Override
    protected void updateAppBar(AppBar appBar) {
        appBar.setNavIcon(MaterialDesignIcon.MENU.button(e -> System.out.println("Menu")));
        appBar.setTitleText("Basic View");
    }
}

buildscript {
    repositories {
        jcenter()
    }
    dependencies {
        classpath 'org.javafxports:jfxmobile-plugin:1.3.6'
    }
}

apply plugin: 'org.javafxports.jfxmobile'

repositories {
    jcenter()
    maven {
        url 'http://nexus.gluonhq.com/nexus/content/repositories/releases'
    }
}

mainClassName = 'com.gluonhq.scheduler.GluonScheduler'

dependencies {
    compile 'com.gluonhq:charm:4.3.5'
}

jfxmobile {
    downConfig {
        version = '3.3.0'
        // Do not edit the line below. Use Gluon Mobile Settings in your project context menu instead
        plugins 'display', 'lifecycle', 'statusbar', 'storage'
    }
    android {
        manifest = 'src/android/AndroidManifest.xml'
    }
    ios {
        infoPList = file('src/ios/Default-Info.plist')
        forceLinkClasses = [
                'com.gluonhq.**.*',
                'javax.annotations.**.*',
                'javax.inject.**.*',
                'javax.json.**.*',
                'org.glassfish.json.**.*'
        ]
    }
}

package com.gluonhq.charm.down.plugins;

public interface AlarmService {
    public void schedule();
}

package com.gluonhq.charm.down.plugins;

import com.gluonhq.charm.down.DefaultServiceFactory;

public class AlarmServiceFactory extends DefaultServiceFactory<AlarmService> {

    public AlarmServiceFactory() {
        super(AlarmService.class);
    }

}

package com.gluonhq.charm.down.plugins.android;

import android.app.AlarmManager;
import android.app.PendingIntent;
import android.content.Context;
import android.content.Intent;
import android.os.SystemClock;
import com.gluonhq.charm.down.plugins.AlarmService;
import com.gluonhq.scheduler.android.AlarmReceiver;
import javafxports.android.FXActivity;

public class AndroidAlarmService implements AlarmService {

    private final AlarmManager manager;
    private final FXActivity activity;

    public AndroidAlarmService() {
        activity = FXActivity.getInstance();
        manager = (AlarmManager) activity.getSystemService(Context.ALARM_SERVICE);
    }
    @Override
    public void schedule() {
        Intent indent = new Intent(activity, AlarmReceiver.class);
        PendingIntent pIntent = PendingIntent.getBroadcast(activity, 0, indent, 0);

        manager.set(AlarmManager.RTC_WAKEUP, SystemClock.elapsedRealtime() + 2000, pIntent); 
    }

}

button.setOnAction(e -> 
        Services.get(AlarmService.class).ifPresent(AlarmService::schedule));