/
ContentProviderClientCompat.kt
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/
ContentProviderClientCompat.kt
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/*
* Copyright 2018 Google Inc.
*
* 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 com.google.android.apps.muzei.util
import android.content.ContentProviderClient
import android.content.Context
import android.database.Cursor
import android.net.Uri
import android.os.Build
import android.os.Bundle
import android.os.ParcelFileDescriptor
import android.os.RemoteException
import kotlinx.coroutines.experimental.Dispatchers
import kotlinx.coroutines.experimental.withContext
import java.io.FileNotFoundException
import java.io.InputStream
/**
* Backports [AutoCloseable] support for [ContentProviderClient] to API 19
*/
class ContentProviderClientCompat private constructor(
private val mContentProviderClient: ContentProviderClient
) : AutoCloseable {
companion object {
fun getClient(context: Context, uri: Uri): ContentProviderClientCompat? =
context.contentResolver.acquireUnstableContentProviderClient(uri)?.run {
ContentProviderClientCompat(this)
}
}
@Throws(RemoteException::class)
suspend fun call(
method: String,
arg: String? = null,
extras: Bundle? = null
): Bundle? = withContext(Dispatchers.Default) {
mContentProviderClient.call(method, arg, extras)
}
@Throws(RemoteException::class)
suspend fun query(
url: Uri,
projection: Array<String>? = null,
selection: String? = null,
selectionArgs: Array<String>? = null,
sortOrder: String? = null
): Cursor? = withContext(Dispatchers.Default) {
return@withContext mContentProviderClient.query(
url, projection, selection, selectionArgs, sortOrder)
}
@Throws(FileNotFoundException::class, RemoteException::class)
suspend fun openInputStream(
url: Uri
): InputStream? = withContext(Dispatchers.Default) {
mContentProviderClient.openFile(url, "r")?.run {
ParcelFileDescriptor.AutoCloseInputStream(this)
}
}
override fun close() {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
mContentProviderClient.close()
} else {
@Suppress("DEPRECATION")
mContentProviderClient.release()
}
}
}