DocumentsContractApi.java
/*
* Copyright 2021 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package androidx.documentfile.provider;
import android.content.Context;
import android.net.Uri;
import android.os.Build;
import android.provider.DocumentsContract;
import androidx.annotation.Nullable;
import androidx.annotation.RequiresApi;
abstract class DocumentsContractApi {
static boolean isDocumentUri(Context context, @Nullable Uri uri) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
return DocumentsContractApi19Impl.isDocumentUri(context, uri);
} else {
return false;
}
}
@Nullable
static String getDocumentId(Uri documentUri) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
return DocumentsContractApi19Impl.getDocumentId(documentUri);
} else {
return null;
}
}
@Nullable
static String getTreeDocumentId(Uri documentUri) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
return DocumentsContractApi21Impl.getTreeDocumentId(documentUri);
} else {
return null;
}
}
@Nullable
static Uri buildDocumentUriUsingTree(Uri treeUri, String documentId) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
return DocumentsContractApi21Impl.buildDocumentUriUsingTree(treeUri, documentId);
} else {
return null;
}
}
@RequiresApi(19)
private static class DocumentsContractApi19Impl {
static boolean isDocumentUri(Context context, @Nullable Uri uri) {
return DocumentsContract.isDocumentUri(context, uri);
}
static String getDocumentId(Uri documentUri) {
return DocumentsContract.getDocumentId(documentUri);
}
private DocumentsContractApi19Impl() {
}
}
@RequiresApi(21)
private static class DocumentsContractApi21Impl {
static String getTreeDocumentId(Uri documentUri) {
return DocumentsContract.getTreeDocumentId(documentUri);
}
static Uri buildDocumentUriUsingTree(Uri treeUri, String documentId) {
return DocumentsContract.buildDocumentUriUsingTree(treeUri, documentId);
}
private DocumentsContractApi21Impl() {
}
}
private DocumentsContractApi() {
}
}