Android8 自定义广播接收不到的问题

最近在用安卓广播的时候，按照流程进行操作，可是不管怎样都没有出现我接受的广播，网上查阅资料以后，发现在Android8中，如果是静态注册广播，需要在action中保留原来的静态广播，加入Component参数；代码如下：

AndroidMainifest.xml:

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.administrator.myapplication">
    <!-- 权限 -->
    <uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED"/>
    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:supportsRtl="true"
        android:theme="@style/AppTheme">
        <activity android:name=".BroadcastActivity">
            <intent-filter>
                <action android:name="android.intent.action.MAIN"></action>
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        <receiver android:name=".MyBroadcastReceiver"
            android:enabled="true"
            android:exported="true"
            >
            <intent-filter>
                <action android:name="com.example.administrator.myapplication.MyBroadcastReceiver"/>
            </intent-filter>
        </receiver>
    </application>
</manifest>

　　

MyBroadcastReceiver.java:

package com.example.administrator.myapplication;

import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.util.Log;
import android.widget.Toast;

public class MyBroadcastReceiver  extends BroadcastReceiver {
    @Override
    public void onReceive(Context context, Intent intent) {
        Toast.makeText(context, "收到广播了", Toast.LENGTH_LONG).show();
    }
}

　　

BroadcastActivity.java:

package com.example.administrator.myapplication;

import android.content.ComponentName;
import android.content.Intent;
import android.content.IntentFilter;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;
import android.view.View;
import android.widget.Button;

public class BroadcastActivity extends AppCompatActivity {
    private MyBroadcastReceiver myBroadcastReceiver;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_broadcast);

        //注册广播
        myBroadcastReceiver = new MyBroadcastReceiver();
        IntentFilter itFilter = new IntentFilter();
        Button btn = (Button) findViewById(R.id.sendBtn);
        btn.setOnClickListener(new View.OnClickListener() {
            public void onClick(View v) {
                Intent intent = new Intent("com.example.administrator.myapplication.MyBroadcastReceiver");
                //第一个参数为包的路径，第二个参数为类名
                intent.setComponent(new ComponentName("com.example.administrator.myapplication", "com.example.administrator.myapplication.MyBroadcastReceiver"));
                sendBroadcast(intent);
            }
        });
    }

    //注销的时候取消广播
    public void onDestroy() {
        super.onDestroy();
        unregisterReceiver(myBroadcastReceiver);
    }
}