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