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Ming Ming 2021-11-03 13:52:11 +08:00
parent 0cf981446d
commit 15523c8bda
1 changed files with 29 additions and 23 deletions
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52
android/app/src/main/kotlin/com/nkming/nc_photos/MediaStoreChannelHandler.kt
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@ -1,17 +1,13 @@
package com.nkming.nc_photos package com.nkming.nc_photos
import android.Manifest
import android.app.Activity import android.app.Activity
import android.content.ContentValues import android.content.ContentValues
import android.content.Intent import android.content.Intent
import android.content.pm.PackageManager
import android.net.Uri import android.net.Uri
import android.os.Build import android.os.Build
import android.os.Environment import android.os.Environment
import android.provider.MediaStore import android.provider.MediaStore
import androidx.annotation.RequiresApi import androidx.annotation.RequiresApi
import androidx.core.app.ActivityCompat
import androidx.core.content.ContextCompat
import androidx.core.content.FileProvider import androidx.core.content.FileProvider
import io.flutter.plugin.common.MethodCall import io.flutter.plugin.common.MethodCall
import io.flutter.plugin.common.MethodChannel import io.flutter.plugin.common.MethodChannel
@ -27,8 +23,8 @@ import java.io.FileOutputStream
* the file * the file
* fun saveFileToDownload(fileName: String, content: ByteArray): String * fun saveFileToDownload(fileName: String, content: ByteArray): String
*/ */
class MediaStoreChannelHandler(activity: Activity) class MediaStoreChannelHandler(activity: Activity) :
: MethodChannel.MethodCallHandler { MethodChannel.MethodCallHandler {
companion object { companion object {
@JvmStatic @JvmStatic
val CHANNEL = "com.nkming.nc_photos/media_store" val CHANNEL = "com.nkming.nc_photos/media_store"
@ -37,8 +33,11 @@ class MediaStoreChannelHandler(activity: Activity)
override fun onMethodCall(call: MethodCall, result: MethodChannel.Result) { override fun onMethodCall(call: MethodCall, result: MethodChannel.Result) {
if (call.method == "saveFileToDownload") { if (call.method == "saveFileToDownload") {
try { try {
saveFileToDownload(call.argument<String>("fileName")!!, saveFileToDownload(
call.argument<ByteArray>("content")!!, result) call.argument("fileName")!!,
call.argument("content")!!,
result
)
} catch (e: Throwable) { } catch (e: Throwable) {
result.error("systemException", e.message, null) result.error("systemException", e.message, null)
} }
@ -47,8 +46,9 @@ class MediaStoreChannelHandler(activity: Activity)
} }
} }
private fun saveFileToDownload(fileName: String, content: ByteArray, private fun saveFileToDownload(
result: MethodChannel.Result) { fileName: String, content: ByteArray, result: MethodChannel.Result
) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) { if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) {
saveFileToDownload29(fileName, content, result) saveFileToDownload29(fileName, content, result)
} else { } else {
@ -57,15 +57,17 @@ class MediaStoreChannelHandler(activity: Activity)
} }
@RequiresApi(Build.VERSION_CODES.Q) @RequiresApi(Build.VERSION_CODES.Q)
private fun saveFileToDownload29(fileName: String, content: ByteArray, private fun saveFileToDownload29(
result: MethodChannel.Result) { fileName: String, content: ByteArray, result: MethodChannel.Result
) {
// Add a media item that other apps shouldn't see until the item is // Add a media item that other apps shouldn't see until the item is
// fully written to the media store. // fully written to the media store.
val resolver = _context.applicationContext.contentResolver val resolver = _context.applicationContext.contentResolver
// Find all audio files on the primary external storage device. // Find all audio files on the primary external storage device.
val collection = MediaStore.Downloads.getContentUri( val collection = MediaStore.Downloads.getContentUri(
MediaStore.VOLUME_EXTERNAL_PRIMARY) MediaStore.VOLUME_EXTERNAL_PRIMARY
)
val details = ContentValues().apply { val details = ContentValues().apply {
put(MediaStore.Downloads.DISPLAY_NAME, fileName) put(MediaStore.Downloads.DISPLAY_NAME, fileName)
} }
@ -74,37 +76,41 @@ class MediaStoreChannelHandler(activity: Activity)
resolver.openFileDescriptor(contentUri!!, "w", null).use { pfd -> resolver.openFileDescriptor(contentUri!!, "w", null).use { pfd ->
// Write data into the pending audio file. // Write data into the pending audio file.
BufferedOutputStream(FileOutputStream(pfd!!.fileDescriptor)).use { BufferedOutputStream(FileOutputStream(pfd!!.fileDescriptor)).use { stream ->
stream -> stream.write(content) stream.write(content)
} }
} }
result.success(contentUri.toString()) result.success(contentUri.toString())
} }
private fun saveFileToDownload0(fileName: String, content: ByteArray, private fun saveFileToDownload0(
result: MethodChannel.Result) { fileName: String, content: ByteArray, result: MethodChannel.Result
) {
if (!PermissionHandler.ensureWriteExternalStorage(_activity)) { if (!PermissionHandler.ensureWriteExternalStorage(_activity)) {
result.error("permissionError", "Permission not granted", null) result.error("permissionError", "Permission not granted", null)
return return
} }
val path = Environment.getExternalStoragePublicDirectory( val path = Environment.getExternalStoragePublicDirectory(
Environment.DIRECTORY_DOWNLOADS) Environment.DIRECTORY_DOWNLOADS
)
var file = File(path, fileName) var file = File(path, fileName)
var count = 1 var count = 1
while (file.exists()) { while (file.exists()) {
val f = File(fileName) val f = File(fileName)
file = File(path, "${f.nameWithoutExtension} ($count).${f.extension}") file =
File(path, "${f.nameWithoutExtension} ($count).${f.extension}")
++count ++count
} }
BufferedOutputStream(FileOutputStream(file)).use { BufferedOutputStream(FileOutputStream(file)).use { stream ->
stream -> stream.write(content) stream.write(content)
} }
val fileUri = Uri.fromFile(file) val fileUri = Uri.fromFile(file)
triggerMediaScan(fileUri) triggerMediaScan(fileUri)
val contentUri = FileProvider.getUriForFile(_context, val contentUri = FileProvider.getUriForFile(
"${BuildConfig.APPLICATION_ID}.fileprovider", file) _context, "${BuildConfig.APPLICATION_ID}.fileprovider", file
)
result.success(contentUri.toString()) result.success(contentUri.toString())
} }