我的接收器没有收到报警管理器

Question

我试图在特定时间发送通知，我在网上搜索一些解决方案，但代码不起作用。

我使用BroadcastReceiver的用户报警管理器，但BroadcastReceiver永远不会收到我的报警。为什么？

的Manifest.xml：

<receiver android:name=".AlarmReceiver"/> 
<uses-permission android:name="android.permission.WAKE_LOCK" /> 

MainActivity.class：

... 
    AlarmManager am = (AlarmManager) getSystemService(Context.ALARM_SERVICE); 
    Intent i = new Intent(MainActivity.this, AlarmReceiver.class); 
    PendingIntent pi = PendingIntent.getBroadcast(MainActivity.this, 0, i, 0); 

    Calendar c = Calendar.getInstance(); 
    c.set(Calendar.HOUR_OF_DAY, hour);  // hour is an int selected from user 
    c.set(Calendar.MINUTE, minute);   // minute is an int selected from user 
    am.set(AlarmManager.RTC_WAKEUP, c.getTimeInMillis(), pi); 

我的收款人：

public class AlarmReceiver extends BroadcastReceiver { 


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


    Log.d("ALARM RECEIVER", "Alarm received"); 

    // do stuff... 
    } 
} 

--edit - 添加完整清单

<?xml version="1.0" encoding="utf-8"?> 
<manifest xmlns:android="http://schemas.android.com/apk/res/android" 
    package="com.mycompany.daniel.diabetegestazionale"> 
<uses-permission android:name="android.permission.CALL_PHONE" /> 
<uses-permission android:name="android.permission.READ_PHONE_STATE" /> 
<uses-permission android:name="android.permission.WAKE_LOCK" /> 

<application 
    android:allowBackup="true" 
    android:icon="@drawable/icon" 
    android:label="@string/app_name" 
    android:supportsRtl="true" 
    android:theme="@style/AppTheme"> 
    <activity android:name=".LoginActivity"> 
     <intent-filter> 
      <action android:name="android.intent.action.MAIN" /> 

      <category android:name="android.intent.category.LAUNCHER" /> 
     </intent-filter> 
    </activity> 
    <activity 
     android:name=".SignInActivity" 
     android:label="@string/title_activity_signin" 
     android:parentActivityName=".LoginActivity"> 
     <meta-data 
      android:name="android.support.PARENT_ACTIVITY" 
      android:value="com.mycompany.daniel.diabetegestazionale.LoginActivity" /> 
    </activity> 
    <activity 
     android:name=".MainActivity" 
     android:label="@string/app_name" 
     android:theme="@style/AppTheme.NoActionBar" /> 
    <activity 
     android:name=".InformationActivity" 
     android:label="@string/title_activity_information" 
     android:parentActivityName=".MainActivity"> 
     <meta-data 
      android:name="android.support.PARENT_ACTIVITY" 
      android:value="com.mycompany.daniel.diabetegestazionale.MainActivity" /> 
    </activity> 
    <activity 
     android:name=".AcquiringDataActivity" 
     android:label="@string/title_activity_acquiringData" 
     android:parentActivityName=".MainActivity"> 
     <meta-data 
      android:name="android.support.PARENT_ACTIVITY" 
      android:value="com.mycompany.daniel.diabetegestazionale.MainActivity" /> 
    </activity> 
    <activity 
     android:name=".GraphActivity" 
     android:label="@string/title_activity_graph" 
     android:parentActivityName=".MainActivity"> 
     <meta-data 
      android:name="android.support.PARENT_ACTIVITY" 
      android:value="com.mycompany.daniel.diabetegestazionale.MainActivity" /> 
    </activity> 
    <activity 
     android:name=".NoteActivity" 
     android:label="@string/title_activity_note" 
     android:parentActivityName=".MainActivity"> 
     <meta-data 
      android:name="android.support.PARENT_ACTIVITY" 
      android:value="com.mycompany.daniel.diabetegestazionale.MainActivity" /> 
    </activity> 
    <activity 
     android:name=".MealActivity" 
     android:label="@string/title_activity_meal" 
     android:parentActivityName=".MainActivity"> 
     <meta-data 
      android:name="android.support.PARENT_ACTIVITY" 
      android:value="com.mycompany.daniel.diabetegestazionale.MainActivity" /> 
    </activity> 
    <activity 
     android:name=".PhoneNumbersActivity" 
     android:label="@string/title_activity_phoneNumbers" 
     android:parentActivityName=".MainActivity"> 
     <meta-data 
      android:name="android.support.PARENT_ACTIVITY" 
      android:value="com.mycompany.daniel.diabetegestazionale.MainActivity" /> 
    </activity> 
    <activity 
     android:name=".InfoDetailActivity" 
     android:label="@string/title_activity_information" 
     android:parentActivityName=".InformationActivity"> 
     <meta-data 
      android:name="android.support.PARENT_ACTIVITY" 
      android:value="com.mycompany.daniel.diabetegestazionale.InformationActivity" /> 
    </activity> 
    <activity 
     android:name=".RecoveryActivity" 
     android:label="@string/title_activity_recoveryPassword" 
     android:parentActivityName=".LoginActivity"> 
     <meta-data 
      android:name="android.support.PARENT_ACTIVITY" 
      android:value="com.mycompany.daniel.diabetegestazionale.LoginActivity" /> 
    </activity> 
    <activity 
     android:name=".QuestionAnswerActivity" 
     android:label="@string/title_activity_recoveryPassword" 
     android:parentActivityName=".RecoveryActivity"> 
     <meta-data 
      android:name="android.support.PARENT_ACTIVITY" 
      android:value="com.mycompany.daniel.diabetegestazionale.RecoveryActivity" /> 
    </activity> 
    <activity 
     android:name=".RecoveryActivitySetPassword" 
     android:label="@string/title_activity_recoveryPassword" 
     android:parentActivityName=".QuestionAnswerActivity"> 
     <meta-data 
      android:name="android.support.PARENT_ACTIVITY" 
      android:value="com.mycompany.daniel.diabetegestazionale.QuestionAnswerActivity" /> 
    </activity> 
    <activity 
     android:name=".NoteDetailedActivity" 
     android:label="@string/title_activity_note" 
     android:parentActivityName=".NoteActivity"> 
     <meta-data 
      android:name="android.support.PARENT_ACTIVITY" 
      android:value="com.mycompany.daniel.diabetegestazionale.NoteActivity" /> 
    </activity> 
    <activity 
     android:name=".WriteNoteActivity" 
     android:label="@string/title_activity_note" 
     android:parentActivityName=".NoteActivity"> 
     <meta-data 
      android:name="android.support.PARENT_ACTIVITY" 
      android:value="com.mycompany.daniel.diabetegestazionale.NoteActivity" /> 
    </activity> 
    <activity 
     android:name=".DetailedPhoneNumbersActivity" 
     android:label="@string/title_activity_phoneNumbers" 
     android:parentActivityName=".PhoneNumbersActivity"> 
     <meta-data 
      android:name="android.support.PARENT_ACTIVITY" 
      android:value="com.mycompany.daniel.diabetegestazionale.PhoneNumbersActivity" /> 
    </activity> 
    <activity 
     android:name=".ModifyPhoneContactActivity" 
     android:label="@string/title_activity_phoneNumbers" 
     android:parentActivityName=".DetailedPhoneNumbersActivity"> 
     <meta-data 
      android:name="android.support.PARENT_ACTIVITY" 
      android:value="com.mycompany.daniel.diabetegestazionale.DetailedPhoneNumbersActivity" /> 
    </activity> 
    <activity 
     android:name=".CreateNewContactActivity" 
     android:label="@string/title_activity_create_contact" 
     android:parentActivityName=".PhoneNumbersActivity"> 
     <meta-data 
      android:name="android.support.PARENT_ACTIVITY" 
      android:value="com.mycompany.daniel.diabetegestazionale.PhoneNumbersActivity" /> 
    </activity> 
    <activity 
     android:name=".AllInsertionsActivity" 
     android:label="@string/title_activity_all_insertions" 
     android:parentActivityName=".GraphActivity"> 
     <meta-data 
      android:name="android.support.PARENT_ACTIVITY" 
      android:value="com.mycompany.daniel.diabetegestazionale.GraphActivity" /> 
    </activity> 
    <activity android:name=".SearchFoodActivity" 
     android:label="@string/title_activity_search_food" 
     android:parentActivityName=".MealActivity"> 
     <meta-data 
      android:name="android.support.PARENT_ACTIVITY" 
      android:value="com.mycompany.daniel.diabetegestazionale.MealActivity" /> 
    </activity> 
</application> 

<service 
    android:name=".AlarmService" 
    android:enabled="true" /> 

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

</manifest> 

Answer 1

改变这种

</application> <service android:name=".AlarmService" android:enabled="true" /> <receiver android:name=".AlarmReceiver"/>

到

<service android:name=".AlarmService" android:enabled="true" /> <receiver android:name=".AlarmReceiver"/> </application>