注册一个收件箱监听器发生Exported receiver does not require permission 警告

Question

请看XML文件
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.sms001"
    android:versionCode="1"
    android:versionName="1.0" >
 
  
    <uses-sdk
        android:minSdkVersion="8"
        android:targetSdkVersion="15" />
    <uses-permission android:name="android.permission.READ_SMS"/>
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
    <uses-permission android:name="android.permission.MOUNT_UNMOUNT_FILESYSTEMS"/>
    <uses-permission android:name="android.permission.READ_CONTACTS"/>
   <uses-permission android:name="android.permission.RECEIVE_SMS"/>
    
   
        
    <application
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >
        <activity
            android:name=".MainActivity"
            android:label="@string/title_activity_main" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        <receiver android:name="SMSReceiver">  
           
            <intent-filter>  
                <action android:name="android.provider.Telephony.SMS_RECEIVED"/>  
            </intent-filter>  
        </receiver>  
    </application></manifest><receiver android:name="SMSReceiver">  总是提示有Exported receiver does not require permission  警告

Answer 1

 <receiver android:name="SMSReceiver"
           android:permission="android.provider.Telephony.SMS_RECEIVED">  
            
            <intent-filter>  
                <action android:name="android.provider.Telephony.SMS_RECEIVED"/>  
            </intent-filter>  
        </receiver>