<?xml?version="1.0"?encoding="utf-8"?> <manifest?xmlns:android="http://schemas.android.com/apk/res/android" ????package="com.example.sdcardTime" ????android:versionCode="1" ????android:versionName="1.0"?> ????<uses-sdk ????????android:minSdkVersion="8" ????????android:targetSdkVersion="17"?/> ????<application ????????android:allowBackup="true" ????????android:icon="@drawable/ic_launcher" ????????android:label="@string/app_name" ????????android:theme="@style/AppTheme"?> ????????<activity ????????????android:name="com.example.sdcardTime.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> ????????<receiver?android:name="com.example.sdcardTime.Mybuixinle"> ????????????<intent-filter?> ????????????????<action?android:name="android.intent.action.MEDIA_REMOVED"/> ????????????????<action?android:name="android.intent.action.MEDIA_UNMOUNTED"/> ????????????????<action?android:name="android.intent.action.MEDIA_MOUNTED"/> ????????????????<data?android:scheme="file"/>?-----------------------------------這里的問題------------------ ????????????</intent-filter> ????????</receiver> ????</application> </manifest>這是我的清單文件，scheme屬性老師說這是指定路徑，但是我就是不理解，為什么就是監聽個廣播又不是讀取文件，為什么還要指定路徑。