SD card Mount /Unmount Intent 관련 문제입니다.

현재 unlock된 G1을 가지고 개발을 하고 있습니다.

Broadcast Receiver와 관련하여 Phone을 USB에 연결/해제 와 관련하여

어플레벨에서 Noti를 받아 Toast를 띄우는데는 성공했습니다.

하지만 SD Card와 관련된 부분은 현재 Toast를 띄우지 않고 있습니다.

아래에 관련 코드 첨부합니다.

능력자 분들의 답변 부탁드려요.

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
      android:versionCode="1"
      android:versionName="1.0" package="com.review">
    <application android:icon="@drawable/icon" android:label="@string/app_name" android:debuggable="true">
        <activity android:name=".review"
                  android:label="@string/app_name"
                  android:screenOrientation="landscape">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        
        <receiver android:name="com.review.IntentReceiver">
         <intent-filter>
         
          <action android:name="android.intent.action.UMS_CONNECTED" />
          <action android:name="android.intent.action.UMS_DISCONNECTED" />
         
           <action android:name="android.intent.action.MEDIA_MOUNTED" />
          <action android:name="android.intent.action.MEDIA_UNMOUNTED" />
          <action android:name="android.intent.action.MEDIA_REMOVED" />
          <action android:name="android.intent.action_MEDIA_EJECT" />
         
         </intent-filter>
        </receiver> -->
    </application>
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
    <uses-sdk android:minSdkVersion="4" />
</manifest> 

//com.review.IntentReceiver
package com.review;

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

public class IntentReceiver extends BroadcastReceiver {
 public void onReceive(Context context, Intent intent) {
  if(intent.getAction().equals(intent.ACTION_UMS_CONNECTED)) {
   Toast.makeText(context, "USB Connected", Toast.LENGTH_LONG).show();
  }
  
  if(intent.getAction().equals(intent.ACTION_UMS_DISCONNECTED)) {
   Toast.makeText(context, "USB Disconnected", Toast.LENGTH_LONG).show();
  }
  
  // BONG_TEST {
  if(intent.getAction().equals(intent.ACTION_MEDIA_MOUNTED)) {
   Toast.makeText(context, "MOUNTED", Toast.LENGTH_LONG).show();
  }
  
  if(intent.getAction().equals(intent.ACTION_MEDIA_UNMOUNTED)) {
   Toast.makeText(context, "UNMOUNTED", Toast.LENGTH_LONG).show();
  }
  
  if(intent.getAction().equals(intent.ACTION_MEDIA_REMOVED)) {
   Toast.makeText(context, "UNMOUNTED", Toast.LENGTH_LONG).show();
  }
  
  if(intent.getAction().equals(intent.ACTION_MEDIA_EJECT)) {
   Toast.makeText(context, "UNMOUNTED", Toast.LENGTH_LONG).show();
  }
  // BONG_TEST }
 }
}