registerMediaButtonEventReceiver /操作音量按钮问题 [英] registerMediaButtonEventReceiver / handling volume buttons issue

问题描述

在我的应用程序需要处理物理按键的事件，如音量按钮点击。对于我使用audiomanager的registerMediaButtonEventReceiver方法。这里有一个<一个href=\"http://android-developers.blogspot.com/2010/06/allowing-applications-to-play-nicer.html\">article有关我的情况，虽然我不能得到它的工作。

下面是code我使用的是：

 公共类VolumeBroadcastActivity延伸活动{
    / **当第一次创建活动调用。 * /
    @覆盖
    公共无效的onCreate（捆绑savedInstanceState）{
        super.onCreate（savedInstanceState）;
        的setContentView（R.layout.main）;        AudioManager经理=（AudioManager）getSystemService（AUDIO_SERVICE）;
        manager.registerMediaButtonEventReceiver（新单元名（getPackageName（），RemoteControlReceiver.class.getName（）））;
    }    公共类RemoteControlReceiver扩展广播接收器{
        @覆盖
        公共无效的onReceive（上下文的背景下，意图意图）{            Toast.makeText（VolumeBroadcastActivity.this，1，1）.show（）;
            如果（Intent.ACTION_MEDIA_BUTTON.equals（intent.getAction（）））{
            }
        }
    }
}＆LT; XML版本=1.0编码=UTF-8＆GT？;
＆LT;清单的xmlns：机器人=htt​​p://schemas.android.com/apk/res/android
    包=localhost.volume.broadcast
    安卓版code =1
    机器人：=的versionName1.0＆GT;    ＆LT;采用-SDK安卓的minSdkVersion =10/＆GT;    ＆lt;应用
        机器人：图标=@绘制/ ic_launcher
        机器人：标签=@字符串/ APP_NAME＆GT;
        ＆LT;活动
            机器人：名字=。VolumeBroadcastActivity
            机器人：标签=@字符串/ APP_NAME＆GT;
            ＆所述;意图滤光器＆gt;
                ＆lt;作用机器人：名字=android.intent.action.MAIN/＆GT;
                ＆LT;类机器人：名字=android.intent.category.LAUNCHER/＆GT;
            ＆所述; /意图滤光器＆gt;
        ＆LT; /活性GT;
        ＆lt;接收机器人：名字=RemoteControlReceiver＆GT;
            ＆所述;意图滤光器＆gt;
                ＆lt;作用机器人：名字=android.intent.action.MEDIA_BUTTON/＆GT;
            ＆所述; /意图滤光器＆gt;
        ＆LT; /接收器＆GT;
    ＆LT; /用途＆gt;＆LT; /清单＆GT;
 

解决方案

您 RemoteControlReceiver 类是一个内部类 VolumeBroadcastActivity 。您的清单中没有这么说，我不认为它可能。使它成为一个普通班和precede其的android：名称以点

In my application I need to process physical button events such as volume button clicks. For that I'm using audiomanager's registerMediaButtonEventReceiver method. There's an article relevant to my situation, though I can't get it working.

Here's code I'm using:

public class VolumeBroadcastActivity extends Activity {
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

        AudioManager manager = (AudioManager) getSystemService(AUDIO_SERVICE);
        manager.registerMediaButtonEventReceiver(new ComponentName(getPackageName(), RemoteControlReceiver.class.getName()));
    }

    public class RemoteControlReceiver extends BroadcastReceiver {
        @Override
        public void onReceive(Context context, Intent intent) {

            Toast.makeText(VolumeBroadcastActivity.this, "1",1).show();
            if (Intent.ACTION_MEDIA_BUTTON.equals(intent.getAction())) {
            }
        }
    }
}

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

    <uses-sdk android:minSdkVersion="10" />

    <application
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name" >
        <activity
            android:name=".VolumeBroadcastActivity"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        <receiver android:name="RemoteControlReceiver">
            <intent-filter>
                <action android:name="android.intent.action.MEDIA_BUTTON" />
            </intent-filter>
        </receiver>
    </application>

</manifest>

解决方案

Your RemoteControlReceiver class is an inner class of VolumeBroadcastActivity. Your manifest doesn't say so and I don't think it could. Make it a regular class and precede its android:name with a dot.

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