尝试在 Android 上启动时启动服务 [英] Trying to start a service on boot on Android

问题描述

我一直在尝试在设备在 android 上启动时启动服务，但我无法让它工作.我在网上查看了许多链接，但没有一个代码有效.我是不是忘记了什么?

I've been trying to start a service when a device boots up on android, but I cannot get it to work. I've looked at a number of links online but none of the code works. Am I forgetting something?

<receiver
    android:name=".StartServiceAtBootReceiver"
    android:enabled="true"
    android:exported="false"
    android:label="StartServiceAtBootReceiver" >
    <intent-filter>
        <action android:name="android.intent.action._BOOT_COMPLETED" />
    </intent-filter>
</receiver>

<service
    android:name="com.test.RunService"
    android:enabled="true" />

广播接收器

public void onReceive(Context context, Intent intent) {
    if ("android.intent.action.BOOT_COMPLETED".equals(intent.getAction())) {
        Intent serviceLauncher = new Intent(context, RunService.class);
        context.startService(serviceLauncher);
        Log.v("TEST", "Service loaded at start");
    }
}

推荐答案

其他答案看起来不错，但我想我会将所有内容汇总为一个完整答案.

The other answers look good, but I thought I'd wrap everything up into one complete answer.

您的 AndroidManifest.xml 文件中需要以下内容:

You need the following in your AndroidManifest.xml file:

1. 在您的 元素中:

<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />

在您的 元素中(确保为您的 BroadcastReceiver 使用完全限定的 [或相关] 类名):

In your <application> element (be sure to use a fully-qualified [or relative] class name for your BroadcastReceiver):

<receiver android:name="com.example.MyBroadcastReceiver">  
    <intent-filter>  
        <action android:name="android.intent.action.BOOT_COMPLETED" />  
    </intent-filter>  
</receiver>

(不需要android:enabled、exported等属性:Android默认是正确的)

(you don't need the android:enabled, exported, etc., attributes: the Android defaults are correct)

在MyBroadcastReceiver.java中:

package com.example;

public class MyBroadcastReceiver extends BroadcastReceiver {
    @Override
    public void onReceive(Context context, Intent intent) {
        Intent startServiceIntent = new Intent(context, MyService.class);
        context.startService(startServiceIntent);
    }
}

来自原始问题:

• 不清楚 元素是否在 元素中
• 不清楚是否为 BroadcastReceiver 指定了正确的完全限定(或相关)类名
中存在拼写错误

• it's not clear if the <receiver> element was in the <application> element
• it's not clear if the correct fully-qualified (or relative) class name for the BroadcastReceiver was specified
• there was a typo in the <intent-filter>

这篇关于尝试在 Android 上启动时启动服务的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！