Android 应用程序关闭时，服务和报警管理器不工作

我正在尝试实施短信调度应用程序。在选择了用户需要安排短信息的时间后，我正在呼叫服务。当应用程序在前台和后台运行时，一切正常。但在应用程序关闭时不工作。我也使用过alarm manager，alarm manager也是如此。我还在清单文件中声明了“Process”属性。任何帮助都将不胜感激

这些是我的代码文件。看一看

1. MainActivity 

public class MainActivity extends AppCompatActivity implements 
View.OnClickListener{

Button mButton;
EditText mPhoneNumber;
EditText mMessage;
String message=null;
String phoneNumber=null;
Button alarmButton;
int number;
@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    mButton = (Button)findViewById(R.id.send_button);
    mPhoneNumber = (EditText) findViewById(R.id.phone_number);
    mMessage = (EditText) findViewById(R.id.message);
    message=mMessage.getText().toString();
    phoneNumber=mPhoneNumber.getText().toString();
    alarmButton=(Button)findViewById(R.id.alarm_button);

    alarmButton.setOnClickListener(this);
    mButton.setOnClickListener(this);
}

@Override
public void onClick(View view) {

    switch(view.getId()){

        case R.id.send_button:
            if(!message.equals(null)&&!phoneNumber.equals(null)){
                sendSS(mMessage.getText().toString(),mPhoneNumber.getText().toString());
            }
            break;
        case R.id.alarm_button:
            int currentHour,currentMinute;
            Calendar ca = Calendar.getInstance();
            currentHour = ca.get(Calendar.HOUR_OF_DAY);
            currentMinute = ca.get(Calendar.MINUTE);
            // Launch Time Picker Dialog
            TimePickerDialog tpd = new TimePickerDialog(this,
                    new TimePickerDialog.OnTimeSetListener() {
                        @Override
                        public void onTimeSet(TimePicker view, int hourOfDay,
                                              int minute) {
                                sendPickedTime(hourOfDay,minute);
                        }
                    }, currentHour, currentMinute, true);
            tpd.show();
            break;
    }

}

public void sendSS(String messageText, String contactNumber){

    String SENT = "SMS_SENT";
    String DELIVERED = "SMS_DELIVERED";
    PendingIntent sentPI = PendingIntent.getBroadcast(this, 0,
            new Intent(SENT), 0);
    PendingIntent deliveredPI = PendingIntent.getBroadcast(this, 0,
            new Intent(DELIVERED), 0);
    //---when the SMS has been sent---
    registerReceiver(new BroadcastReceiver(){
        @Override
        public void onReceive(Context arg0, Intent arg1) {
            switch (getResultCode())
            {
                case Activity.RESULT_OK:
                    Toast.makeText(getBaseContext(), "SMS sent",
                            Toast.LENGTH_SHORT).show();
                    break;
                case SmsManager.RESULT_ERROR_GENERIC_FAILURE:
                    Toast.makeText(getBaseContext(), "Generic failure",
                            Toast.LENGTH_SHORT).show();
                    break;
                case SmsManager.RESULT_ERROR_NO_SERVICE:
                    Toast.makeText(getBaseContext(), "No service",
                            Toast.LENGTH_SHORT).show();
                    break;
                case SmsManager.RESULT_ERROR_NULL_PDU:
                    Toast.makeText(getBaseContext(), "Null PDU",
                            Toast.LENGTH_SHORT).show();
                    break;
                case SmsManager.RESULT_ERROR_RADIO_OFF:
                    Toast.makeText(getBaseContext(), "Radio off",
                            Toast.LENGTH_SHORT).show();
                    break;
            }
        }
    }, new IntentFilter(SENT));
    //---when the SMS has been delivered---
    registerReceiver(new BroadcastReceiver(){
        @Override
        public void onReceive(Context arg0, Intent arg1) {
            switch (getResultCode())
            {
                case Activity.RESULT_OK:
                    Toast.makeText(getBaseContext(), "SMS delivered",
                            Toast.LENGTH_SHORT).show();
                    break;
                case Activity.RESULT_CANCELED:
                    Toast.makeText(getBaseContext(), "SMS not delivered",
                            Toast.LENGTH_SHORT).show();
                    break;
            }
        }
    }, new IntentFilter(DELIVERED));
    ActivityCompat.requestPermissions(this,new String[]{Manifest.permission.SEND_SMS},1);
    SmsManager smsManager=SmsManager.getDefault();
    Log.i("contactNumber",contactNumber);
    Log.i("messageText",messageText);
   smsManager.sendTextMessage(contactNumber,null,messageText,sentPI,deliveredPI);
}

public void sendPickedTime(final int mHour, final int mMinute){

    int mYear,mMonth,mDay;
    final Calendar c = Calendar.getInstance();
    mYear = c.get(Calendar.YEAR);
    mMonth = c.get(Calendar.MONTH);
    mDay = c.get(Calendar.DAY_OF_MONTH);
    DatePickerDialog datePickerDialog = new DatePickerDialog(this,
            new DatePickerDialog.OnDateSetListener() {

                @Override
                public void onDateSet(DatePicker view, int year,
                                      int monthOfYear, int dayOfMonth) {
                    Calendar messageDT=Calendar.getInstance();
                    messageDT.set(year, monthOfYear , dayOfMonth);
                    messageDT.set(Calendar.HOUR_OF_DAY, mHour);
                    messageDT.set(Calendar.MINUTE, mMinute);
                    messageDT.set(Calendar.SECOND, 0);
                    sendMessage(messageDT);
                }
            }, mYear, mMonth, mDay);

    datePickerDialog.show();
}

public void sendMessage(Calendar cal){
    //Intent intentAlarm = new Intent(this, AlarmReceiver.class);
    Intent intent = new Intent(MainActivity.this, NewService.class);
    String message=mMessage.getText().toString();
    String phoneNumber=mPhoneNumber.getText().toString();
    if(!message.equals(null)&&!phoneNumber.equals(null)){
    intent.putExtra("contactNumber",phoneNumber);
    intent.putExtra("messageContent",message);
    }
    PendingIntent pIntent = PendingIntent.getService(MainActivity.this, 0, intent,0);
    // create the object

    Toast.makeText(this, "We will takecare of your sms :)", Toast.LENGTH_LONG).show();
    startService(new Intent(getApplicationContext(),NewService.class));
    AlarmManager alarmManager = (AlarmManager) getSystemService(Context.ALARM_SERVICE);
    alarmManager.set(AlarmManager.RTC_WAKEUP,cal.getTimeInMillis(), pIntent);
    //set the alarm for particular time
    //alarmManager.set(AlarmManager.RTC_WAKEUP,cal.getTimeInMillis(), PendingIntent.getBroadcast(this,0,  intentAlarm, 0));

}

}

}

}

activit_main.xml

 <?xml version="1.0" encoding="utf-8"?>
 <RelativeLayout
 android:id="@+id/activity_main"
 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:paddingBottom="@dimen/activity_vertical_margin"
 android:paddingLeft="@dimen/activity_horizontal_margin"
 android:paddingRight="@dimen/activity_horizontal_margin"
 android:paddingTop="@dimen/activity_vertical_margin"
 tools:context="com.*****.sendingsms.MainActivity">

<EditText
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:hint="Enter Message"
    android:id="@+id/message"/>

<Button
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="Send SMS"
    android:layout_centerVertical="true"
    android:layout_centerHorizontal="true"
    android:id="@+id/send_button"/>

<EditText
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:hint="Enter phone no."
    android:id="@+id/phone_number"
    android:layout_below="@+id/message"
    android:layout_alignParentStart="true"/>
<Button
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="Set Alarm"
    android:layout_below="@id/send_button"
    android:id="@+id/alarm_button"
    android:layout_centerVertical="true"
    android:layout_centerHorizontal="true"/>
   </RelativeLayout>

当你杀死应用程序时，请阅读此@satish…完全强制你必须清除你的私密报警管理器，并使用相同的报警管理器id注册新的报警管理器…>尝试此操作它对我有效问题已得到修复。我有安卓棉花糖6.0，它有让应用程序自动启动的选项。一旦我将我的应用程序添加到该列表中，接收器开始被触发，代码绝对工作正常。感谢您的所有努力：）您在哪个设备上测试？？我正在测试三星note 8，它不工作…@Vivek你得到答案了吗？

public class AlarmReceiver extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
        SmsManager smsManager=SmsManager.getDefault();
       // Log.i("contactNumber",contactNumber);
        //Log.i("messageText",messageText);
        smsManager.sendTextMessage("+91*********",null,"nvjkrvk",null,null);
    Log.i("Received Alarm","Alarm Trigerred");
}

<?xml version="1.0" encoding="utf-8"?>
<manifest package="com.*****.sendingsms"
      xmlns:android="http://schemas.android.com/apk/res/android"
      xmlns:tools="http://schemas.android.com/tools">
<uses-permission android:name="android.permission.SEND_SMS"></uses-        permission>
<uses-permission android:name="android.permission.WAKE_LOCK"/>
<application
    android:allowBackup="true"
    android:icon="@mipmap/ic_launcher"
    android:label="@string/app_name"
    android:supportsRtl="true"
    android:theme="@style/AppTheme">
    <activity android:name=".MainActivity">
        <intent-filter>
            <action android:name="android.intent.action.MAIN"/>

            <category android:name="android.intent.category.LAUNCHER"/>
        </intent-filter>
    </activity>
    <receiver android:name=".AlarmReceiver"
              android:enabled="true"
              android:exported="true"
        android:process=":remote"></receiver>
    <service android:name=".NewService"
             android:exported="true"
             android:process=":ServiceProcess"
             android:enabled="true"
        />
</application>

 <?xml version="1.0" encoding="utf-8"?>
 <RelativeLayout
 android:id="@+id/activity_main"
 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:paddingBottom="@dimen/activity_vertical_margin"
 android:paddingLeft="@dimen/activity_horizontal_margin"
 android:paddingRight="@dimen/activity_horizontal_margin"
 android:paddingTop="@dimen/activity_vertical_margin"
 tools:context="com.*****.sendingsms.MainActivity">

<EditText
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:hint="Enter Message"
    android:id="@+id/message"/>

<Button
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="Send SMS"
    android:layout_centerVertical="true"
    android:layout_centerHorizontal="true"
    android:id="@+id/send_button"/>

<EditText
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:hint="Enter phone no."
    android:id="@+id/phone_number"
    android:layout_below="@+id/message"
    android:layout_alignParentStart="true"/>
<Button
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="Set Alarm"
    android:layout_below="@id/send_button"
    android:id="@+id/alarm_button"
    android:layout_centerVertical="true"
    android:layout_centerHorizontal="true"/>
   </RelativeLayout>