我已经创建了一个BroadcastReceiver检测SD卡安装和卸载 事件，但是，我不能接受任何事件都： 这里的Andr​​oidManifest.xml中：

 ＆LT;接收器的android：启用=真正的机器人：标签=SDCardMountReceiver机器人：出口=真正的机器人：NAME =xxx.broadcasts.SDCardBroadcastReceiver＆GT;
    ＆LT;意向滤光器＆gt;
        ＆lt;作用机器人：名称=android.content.Intent.ACTION_MEDIA_MOUNTED＆GT;＆LT; /作用＆gt;
        ＆LT;  - 或lt;作用安卓！NAME =android.content.Intent.ACTION_MEDIA_UNMOUNTED/＆GT;  - ＆GT;＆LT; /意图滤光器＆gt;
＆LT; /接收器＆GT;
 

而SDCardMountReceiver类：

 公共类SDCardBroadcastReceiver扩展的BroadcastReceiver {
    公共SDCardBroadcastReceiver（）{
        超（）;
        通信System.err.println（构造）;
    }

    公共无效的onReceive（上下文的背景下，意图意图）{
        Log.d（SDCardBroadCastReceiver，接收+ intent.getAction（））;
        通信System.err.println（乔纳森收到+ intent.getAction（））;

    }
}
 

解决方案

的的意图的javadoc指定一个不同的动作：名称值。 使用android.intent.action.MEDIA_MOUNTED而不是android.content.Intent.ACTION_MEDIA_MOUNTED

I have created a BroadcastReceiver to detect SDCard mount and unmount event, however, I am not able to receive any events at all: here's the AndroidManifest.xml:

<receiver android:enabled="true" android:label="SDCardMountReceiver" android:exported="true" android:name="xxx.broadcasts.SDCardBroadcastReceiver">
    <intent-filter>
        <action android:name="android.content.Intent.ACTION_MEDIA_MOUNTED"></action>
        <!-- or <action android:name="android.content.Intent.ACTION_MEDIA_UNMOUNTED" />--></intent-filter>
</receiver>

And the SDCardMountReceiver class:

public class SDCardBroadcastReceiver extends BroadcastReceiver {
    public SDCardBroadcastReceiver() {
        super();
        System.err.println("constructor");
    }

    public void onReceive(Context context, Intent intent) {
        Log.d("SDCardBroadCastReceiver", "receive " + intent.getAction());
        System.err.println("jonathan receive " + intent.getAction());

    }
}

The Intent javadoc specifies a different action:name value. Use "android.intent.action.MEDIA_MOUNTED" instead of "android.content.Intent.ACTION_MEDIA_MOUNTED"