在提供程序应用的AndroidManifest.xml中定义权限

Define Permission in provider app's AndroidManifest.xml

<permission
    android:name="com.myapp.PERMISSION"/>

在提供者应用的AndroidManifest.xml中定义提供者

Define Provider in provider app's AndroidManifest.xml

<provider
        android:name=".MyProvider"
        android:authorities="com.myapp.MyProvider.AUTHORITY"
        android:enabled="true"
        android:exported="true"
        android:multiprocess="true"
        android:readPermission="com.myapp.PERMISSION" />

客户端的AndroidManifest.xml应该具有uses-permission标签

Client's AndroidManifest.xml should have uses-permission tag

<uses-permission android:name="com.myapp.PERMISSION"/>

然后客户端可以访问提供程序

Then client can access the provider

Cursor cursor = getContentResolver().query(
Uri.parse("content://com.myapp.MyProvider.AUTHORITY/xxx" ),null, null, null, null);