Android 应用程序应该每天早上10点运行
我正在创建一个应用程序,将每天早上运行一次。我收到RunTimeException错误,无法理解应用程序是否正在运行 错误是:无法实例化接收器。即使我在舱单上声明了接收人 MainSchedulerClass.javaAndroid 应用程序应该每天早上10点运行,android,alarmmanager,android-pendingintent,Android,Alarmmanager,Android Pendingintent,我正在创建一个应用程序,将每天早上运行一次。我收到RunTimeException错误,无法理解应用程序是否正在运行 错误是:无法实例化接收器。即使我在舱单上声明了接收人 MainSchedulerClass.java package com.example.displayscheduler; import java.util.Calendar; import java.util.TimeZone; import android.app.Activity; import android.ap
package com.example.displayscheduler;
import java.util.Calendar;
import java.util.TimeZone;
import android.app.Activity;
import android.app.AlarmManager;
import android.app.PendingIntent;
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.widget.Toast;
public class MyScheduler extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.schedule);
setRecurringAlarm(this);
}
private void setRecurringAlarm(Context context) {
Calendar updateTime = Calendar.getInstance();
updateTime.setTimeZone(TimeZone.getTimeZone("GMT+5:00"));
updateTime.set(Calendar.HOUR_OF_DAY, 10);
updateTime.set(Calendar.MINUTE, 00);
Intent intent = new Intent(context, Tasks.class);
PendingIntent recurringDownload = PendingIntent.getBroadcast(context,
0, intent, PendingIntent.FLAG_CANCEL_CURRENT);
AlarmManager alarms = (AlarmManager) this.getSystemService(
Context.ALARM_SERVICE);
alarms.setInexactRepeating(AlarmManager.RTC_WAKEUP,
updateTime.getTimeInMillis(),
AlarmManager.INTERVAL_DAY, recurringDownload);
}
}
package com.example.displayscheduler;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.util.Log;
import android.widget.Toast;
public class Tasks extends BroadcastReceiver {
final public static String ONE_TIME = "onetime";
@Override
public void onReceive(Context context, Intent intent) {
Log.i(ONE_TIME, "Executed Tasks.Java File");
//Some task here for every morning
Toast.makeText(context, "Start Displaying Pictures", Toast.LENGTH_LONG).show();
}
}
Tasks.java
package com.example.displayscheduler;
import java.util.Calendar;
import java.util.TimeZone;
import android.app.Activity;
import android.app.AlarmManager;
import android.app.PendingIntent;
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.widget.Toast;
public class MyScheduler extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.schedule);
setRecurringAlarm(this);
}
private void setRecurringAlarm(Context context) {
Calendar updateTime = Calendar.getInstance();
updateTime.setTimeZone(TimeZone.getTimeZone("GMT+5:00"));
updateTime.set(Calendar.HOUR_OF_DAY, 10);
updateTime.set(Calendar.MINUTE, 00);
Intent intent = new Intent(context, Tasks.class);
PendingIntent recurringDownload = PendingIntent.getBroadcast(context,
0, intent, PendingIntent.FLAG_CANCEL_CURRENT);
AlarmManager alarms = (AlarmManager) this.getSystemService(
Context.ALARM_SERVICE);
alarms.setInexactRepeating(AlarmManager.RTC_WAKEUP,
updateTime.getTimeInMillis(),
AlarmManager.INTERVAL_DAY, recurringDownload);
}
}
package com.example.displayscheduler;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.util.Log;
import android.widget.Toast;
public class Tasks extends BroadcastReceiver {
final public static String ONE_TIME = "onetime";
@Override
public void onReceive(Context context, Intent intent) {
Log.i(ONE_TIME, "Executed Tasks.Java File");
//Some task here for every morning
Toast.makeText(context, "Start Displaying Pictures", Toast.LENGTH_LONG).show();
}
}
清单
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.displayscheduler"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="14"
android:targetSdkVersion="21" />
<uses-permission android:name="android.permission.WAKE_LOCK" />
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
<uses-permission android:name="android.permission.VIBRATE"/>
<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name=".MyScheduler"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name=".Tasks"
android:enabled="true"
android:label="@string/app_name" >
</activity>
<receiver android:name="com.example.displayscheduler.MyScheduler" >
</receiver>
</application>
</manifest>
您在receiver标记中写入了活动名称,请将其更改为
Tasks
,即您的BroadcastReceiver类
替换此项:
<receiver android:name="com.example.displayscheduler.MyScheduler" >
</receiver>
为此:
<receiver android:name="com.example.displayscheduler.Tasks" >
</receiver>
在您的
AndroidManifest.xml
中,MyScheduler类不是广播接收器,您必须使用manifest.xml中的任务对其进行更改
<receiver android:name="com.example.displayscheduler.Task" >
</receiver>
确保java文件名与接收方名称相同。 将java文件Tasks.java重命名为MyScheduler.java
请参阅此示例BraodcastReceiver类名为Task,您在清单活动名称中提到了它,而不是Receiver类名。@user3740362很高兴提供帮助,您也应该访问。这可能有点晚,但如果应用程序被终止,这是否有效?