Question

我的应用程序无法正常工作，因为永远不会调用来自MyReceiver类的onReceive方法。请帮助我理解我做错了什么。

MainActivity：

package com.example.beni.smsschedular1;

import android.app.AlarmManager;
import android.app.PendingIntent;
import android.content.Context;
import android.content.Intent;
import android.util.Log;

public class AlarmReceiver  {

private AlarmManager alarmMgr;
// The pending intent that is triggered when the alarm fires.
private PendingIntent alarmIntent;

public void setAlarm(Context context) {

    Intent intent = new Intent(context,MyReceiver.class);
    PendingIntent pIntent = PendingIntent.getBroadcast(context, 9999, intent, 0);

    AlarmManager alarms = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);
    alarms.set(AlarmManager.RTC_WAKEUP,System.currentTimeMillis() + 10000,pIntent);
    Log.i("____SMS", "setAlarm+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++");
}

下一个类创建意图并使用警报管理器调用它：

package com.example.beni.smsschedular1;

import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.telephony.SmsManager;
import android.util.Log;


public class MyReceiver extends BroadcastReceiver {
    @Override
    public void onReceive(Context context, Intent intent) {
        Log.i("-----Send SMS",     "ceva+++++++++++++++++++++++++++++++++++++++++++++++++++++++++");
        SmsManager smsManager = SmsManager.getDefault();  //create
        String phoneNumber = "0762899624";  
        String message = "Somethig...the message";
        smsManager.sendTextMessage(phoneNumber, null, message, null, null);
        //the actual sending of message

    }
}

}

当时间结束时，下一课应由闹钟管理器触发。

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.beni.smsschedular1" >
    <uses-permission android:name="android.permission.SEND_SMS"></uses-permission>
    <uses-permission android:name="android.permission.WRITE_SMS"></uses-permission>
    <uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED"></uses-permission>
    <uses-permission android:name="android.permission.GET_TASKS"></uses-permission>
    <uses-permission android:name="android.permission.READ_PHONE_STATE"></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"
            android:label="@string/app_name"
            android:theme="@style/AppTheme.NoActionBar" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
            <receiver android:name="com.example.beni.smsschedular1.MyReceiver"></receiver>
        </activity>
    </application>

</manifest>

AndroidManifest.xml

inovieces/view

Answer 1

清单中的<receiver>元素必须位于<activity>标记之外，但仍在<application>内。例如：

<manifest ... >
    ...

    <application ... >
        <activity
            android:name=".MainActivity"
            android:label="@string/app_name"
            android:theme="@style/AppTheme.NoActionBar" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>

        <receiver android:name=".MyReceiver" />
    </application>

</manifest>

Android系统。当AlarmManager调用PendingIntent时，不会调用MyBroadcastReceiver

1 个答案: