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<provider
android:name="android.support.v4.content.FileProvider"
android:authorities="app的包名.fileProvider"
android:grantUriPermissions="true"
android:exported="false">
<meta-data
android:name="android.support.FILE_PROVIDER_PATHS"
android:resource="@xml/file_paths" />
provider>
注意:
<paths>
<external-path path="Android/data/app的包名/" name="files_root" />
<external-path path="." name="external_storage_root" />
paths>
path:需要临时授权访问的路径(.代表所有路径) Intent intent = new Intent(Intent.ACTION_VIEW);
//判断是否是AndroidN以及更高的版本
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
intent.setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
Uri contentUri = FileProvider.getUriForFile(context, BuildConfig.APPLICATION_ID + ".fileProvider", apkFile);
intent.setDataAndType(contentUri, "application/vnd.android.package-archive");
} else {
intent.setDataAndType(Uri.fromFile(apkFile), "application/vnd.android.package-archive");
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
}
startActivity(intent);
1、首先我们对Android N及以上做判断;