在res根目录下新建xml资源,然后建一个file_paths.xml

然后在AndroidManifest.xml里面配置provider,一定要放在application内

代码:
<?xml version="1.0" encoding="utf-8"?>
<resources>
<paths>
name="apk_update"
path="." />
</paths>
</resources>
<provider
android:name="android.support.v4.content.FileProvider"
android:authorities="换成包名.fileprovider"
android:exported="false"
android:grantUriPermissions="true">
<meta-data
android:name="android.support.FILE_PROVIDER_PATHS"
android:resource="@xml/file_paths" />
</provider>
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