BroadcastReceiver的对屏幕开/关不工作 [英] BroadcastReceiver for Screen On/Off not working

问题描述

我想使用的BroadcastReceiver，但它不能正常工作，请帮我解决这个问题。 MyReceiver.java

I am trying to use BroadcastReceiver but it is not working, please help me to solve this problem. MyReceiver.java

package com.example.broadcast_receiver;

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

public class MyReceiver extends BroadcastReceiver {

    @Override
    public void onReceive(Context context, Intent intent) {
        // TODO Auto-generated method stub
        Log.i("[BroadcastReceiver]", "MyReceiver");

        if(intent.getAction().equals(Intent.ACTION_SCREEN_ON)){
            Log.i("[BroadcastReceiver]", "Screen ON");
        }
        else if(intent.getAction().equals(Intent.ACTION_SCREEN_OFF)){
            Log.i("[BroadcastReceiver]", "Screen OFF");
        }
    }
}

AndroidManifest.xml中

AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.broadcast_receiver"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk
        android:minSdkVersion="9"
        android:targetSdkVersion="16" />

    <application
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >

        <receiver android:name=".MyReceiver" 
            android:enabled="true"
            android:exported="false">
            <intent-filter>
                <action android:name="android.intent.action.SCREEN_ON"/>
                <action android:name="android.intent.action.SCREEN_OFF"/>
            </intent-filter>
        </receiver>

        <activity
            android:name="com.example.broadcast_receiver.MainActivity"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>

</manifest>

的BroadcastReceiver没有工作，没有做任何日志，请帮我解决这个问题。

BroadcastReceiver not working and not making any log, please help me to solve this problem.

推荐答案

嘿尝试使用广播动态调用，我想这将切切实实的工作......

Hey try using dynamic calling of broadcast,I tried this it will surly work...

public class MainActivity extends Activity {
     //Create broadcast object
       BroadcastReceiver mybroadcast = new BroadcastReceiver() {

        //When Event is published, onReceive method is called
        @Override
        public void onReceive(Context context, Intent intent) {
            // TODO Auto-generated method stub
                Log.i("[BroadcastReceiver]", "MyReceiver");

                if(intent.getAction().equals(Intent.ACTION_SCREEN_ON)){
                    Log.i("[BroadcastReceiver]", "Screen ON");
                }
                else if(intent.getAction().equals(Intent.ACTION_SCREEN_OFF)){
                    Log.i("[BroadcastReceiver]", "Screen OFF");
                }

        }
    };

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

       registerReceiver(mybroadcast, new IntentFilter(Intent.ACTION_SCREEN_ON));
       registerReceiver(mybroadcast, new IntentFilter(Intent.ACTION_SCREEN_OFF));
     }
    }

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