为什么广播接收器的 onreceive() 方法没有被调用？

Question

我是 android 开发的初学者。我正在尝试制作一个 SMS 调度程序应用程序。我的应用程序的广播接收器的 onReceive() 方法没有被调用？下面给出的是我的源代码。我查看了一些其他链接，例如Basic Android alarm app, Broadcast Receiver's onReceive() method not being calledPlease，我想知道我哪里出错了。提前致谢。

1. 主页.java

       public class Homepage extends Activity
       {
        public EditText get_number;
       public EditText text_box;
       public String search_string,text_box_buffer;
       public Bundle bundle;
       public Intent mesg_intent;
       public PendingIntent pending_intent;
       public AlarmManager alarmManager;
       TimePickerFragment newFragment = new TimePickerFragment();
   
       public void showTimePicker(View view)
       {
           newFragment.show(getFragmentManager(),"timepicker");
       }
   
       public void messageSave(View view)
       {
           search_string=get_number.getText().toString();
           text_box_buffer=text_box.getText().toString();
           bundle.putCharSequence("number",search_string);
           bundle.putCharSequence("message", text_box_buffer);
           mesg_intent.putExtras(bundle);
           pending_intent = PendingIntent.getService(this,0,mesg_intent,0);
           alarmManager = (AlarmManager)getSystemService(ALARM_SERVICE);
           alarmManager.set(AlarmManager.RTC_WAKEUP,newFragment.getTime(),pending_intent);
           Toast.makeText(this,"SMS scheduled to be sent",Toast.LENGTH_SHORT).show();
       }
   
   
       @Override
       public void onCreate(Bundle savedInstanceState)
       {
           super.onCreate(savedInstanceState);
           setContentView(R.layout.activity_homepage);
           get_number = (EditText) findViewById(R.id.contacts_search);
           text_box = (EditText) findViewById(R.id.text_box);
           bundle = new Bundle();
           mesg_intent = new Intent(this,Alarmservice.class);
   
       }
   
   
       @Override
       public boolean onOptionsItemSelected(MenuItem item)
       {
   
           int id = item.getItemId();
           if (id == R.id.action_settings)
           {
               return true;
           }
   
           return super.onOptionsItemSelected(item);
       }
   

   }

2. TimepickerFragment.java

   public class TimePickerFragment extends DialogFragment implements TimePickerDialog.OnTimeSetListener
   

   { 公共日历 c = Calendar.getInstance(); 公共 int 小时 = c.get(Calendar.HOUR_OF_DAY); public int minute = c.get(Calendar.MINUTE);

   @Override
   public Dialog onCreateDialog(Bundle savedInstanceState)
   {
       return new TimePickerDialog(getActivity(),this,hour,minute,DateFormat.is24HourFormat(getActivity()));
   }
   
   public void onTimeSet(TimePicker view, int hourOfDay, int minuteset)
   {
       hour=hourOfDay;
       minute=minuteset;
   }
   public long getTime()
   {
       long time_ret = new GregorianCalendar().getTimeInMillis()+((hour*60*60*1000)+(minute*60*1000));
       return time_ret;
   }
   

   }

3. 报警服务.java

   public class Alarmservice extends BroadcastReceiver
   {
   @Override
   public void onReceive(Context context,Intent intent_local)
   {
       try {
           Bundle received_bundle = intent_local.getExtras();
           String number = (String) received_bundle.getCharSequence("number");
           String message = (String) received_bundle.getCharSequence("message");
           SmsManager smsManager = SmsManager.getDefault();
           smsManager.sendTextMessage(number, null, message, null, null);
           Toast.makeText(context,"SMS successfully sent",Toast.LENGTH_SHORT).show();
       }
       catch (Exception e)
       {
           Toast.makeText(context,"SMS failed",Toast.LENGTH_SHORT).show();
       }
   }
   

   }

4. Manifest.xml

   <uses-sdk
       android:minSdkVersion="16"
       android:targetSdkVersion="24" />
   
   <uses-permission android:name="android.permission.SEND_SMS"/>
   <uses-permission android:name="com.android.alarm.permission.SET_ALARM"/>
   
   <application
       android:allowBackup="true"
       android:icon="@mipmap/ic_launcher"
       android:label="@string/app_name"
       android:theme="@style/AppTheme" >
       <activity
           android:name=".Homepage"
           android:label="@string/app_name"
           android:screenOrientation="sensor" >
           <intent-filter>
               <action android:name="android.intent.action.MAIN" />
   
               <category android:name="android.intent.category.LAUNCHER" />
           </intent-filter>
       </activity>
       <receiver
           android:process=":remote"
           android:name=".Alarmservice"/>
   </application>
   

Answer 1

问题在于创建意图，这样做：

mesg_intent = new Intent(this, Alarmservice.class);
mest_intent.putExtras(bundle);
pending_intent = PendingIntent.getBroadcast(this, 0, mesg_intent, PendingIntent.FLAG_UPDATE_CURRENT);