android的一些注意事项（随着学习不断更新）

1.各种permission是写在AndroidManifest.xml的<application />标签外，据我所知有

<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"></uses-permission>

<uses-permission android:name="android.permission.MOUNT_UNMOUNT_FILESYSTEMS"></uses-permission>

<uses-permission android:name="android.permission.INTERNET"></uses-permission>

2.<provider />标签放在<application />内，否则会出现错误“failed to find provider info for XXXXXX”如：

<application android:icon="@drawable/icon" android:label="@string/app_name">
<activity android:name=".DataBaseActivity"
android:label="@string/app_name">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<provider android:name="EmployeeProvider"
android:authorities="com.DataBase.provider.Employees"/>
</application>