Android 7.0 安装Apk时报错FileUriExposedException 解决

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安装Apk时报错FileUriExposedException

1、AndroidManifest.xml写入

   <provider
            android:name="android.support.v4.content.FileProvider"
            android:authorities="你的包名.fileprovider"
            android:exported="false"
            android:grantUriPermissions="true">
            <meta-data
                android:name="android.support.FILE_PROVIDER_PATHS"
                android:resource="@xml/file_paths"/>
        </provider>

2、声明res/xml/file_paths

3、file_paths.xml添加内容

<?xml version="1.0" encoding="utf-8"?>
<paths>
    <external-path path="Android/data/你的包名/" name="files_root" />
    <external-path path="." name="external_storage_root" />
</paths>

4、启动安装Intent

public static void installApk(Context context, String fileName) {
   Intent intent = new Intent(Intent.ACTION_VIEW);
   if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
      intent.setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
      Uri contentUri = FileProvider.getUriForFile(context, "你的包名.fileprovider", new File(fileName));
      intent.setDataAndType(contentUri, "application/vnd.android.package-archive");
   } else {
      intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
      intent.setDataAndType(Uri.parse("file://" + fileName),
            "application/vnd.android.package-archive");
   }
   context.startActivity(intent);
}