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Compact Android scope storage #239

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Compact Android scope storage #239

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e3c5ba6
Compact Android scope storage
lwj1994 Feb 9, 2023
73d2a42
android scope storage change 29->30
lwj1994 Apr 2, 2023
7436fd4
Mark whether it is a picture or not for android
lwj1994 May 10, 2023
d9696f8
fix null check
lwj1994 Nov 16, 2023
f1b8345
fix heif suffix
lwj1994 Apr 28, 2024
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9 changes: 5 additions & 4 deletions android/build.gradle
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Original file line number Diff line number Diff line change
Expand Up @@ -5,7 +5,7 @@ buildscript {
ext.kotlin_version = '1.6.10'
repositories {
google()
jcenter()
mavenCentral()
}

dependencies {
Expand All @@ -17,21 +17,22 @@ buildscript {
rootProject.allprojects {
repositories {
google()
jcenter()
mavenCentral()
}
}

apply plugin: 'com.android.library'
apply plugin: 'kotlin-android'

android {
compileSdkVersion 30
compileSdkVersion 33

sourceSets {
main.java.srcDirs += 'src/main/kotlin'
}
defaultConfig {
minSdkVersion 16
minSdkVersion 21
targetSdkVersion 33
testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
}
lintOptions {
Expand Down
257 changes: 234 additions & 23 deletions android/src/main/kotlin/com/example/imagegallerysaver/ImageGallerySaverPlugin.kt
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Original file line number Diff line number Diff line change
@@ -1,55 +1,93 @@
package com.example.imagegallerysaver

import android.annotation.TargetApi
import android.content.ContentResolver
import android.content.ContentValues
import android.content.Context
import android.content.Intent
import android.graphics.Bitmap
import android.graphics.BitmapFactory
import android.net.Uri
import android.os.Environment
import android.os.Build
import android.os.Environment
import android.provider.MediaStore
import android.text.TextUtils
import android.text.format.DateUtils
import android.webkit.MimeTypeMap
import io.flutter.embedding.engine.plugins.FlutterPlugin
import io.flutter.plugin.common.BinaryMessenger
import io.flutter.plugin.common.MethodCall
import io.flutter.plugin.common.MethodChannel
import io.flutter.plugin.common.MethodChannel.MethodCallHandler
import io.flutter.plugin.common.MethodChannel.Result
import io.flutter.plugin.common.PluginRegistry.Registrar
import java.io.File
import java.io.FileInputStream
import java.io.IOException
import android.text.TextUtils
import android.webkit.MimeTypeMap

import java.text.SimpleDateFormat
import java.util.*

class ImageGallerySaverPlugin : FlutterPlugin, MethodCallHandler {
private var applicationContext: Context? = null
private var methodChannel: MethodChannel? = null

override fun onMethodCall(call: MethodCall, result: Result): Unit {
override fun onMethodCall(call: MethodCall, result: MethodChannel.Result) {
when {
call.method == "saveImageToGallery" -> {
val image = call.argument<ByteArray>("imageBytes") ?: return
val quality = call.argument<Int>("quality") ?: return
val name = call.argument<String>("name")

result.success(saveImageToGallery(BitmapFactory.decodeByteArray(image, 0, image.size), quality, name))
val folder = call.argument<String>("folder")
if (Build.VERSION.SDK_INT >= 30) {
result.success(
saveImageToGallery30(
applicationContext!!,
BitmapFactory.decodeByteArray(image, 0, image.size),
name ?: "",
folder = folder ?: "",
),
)
} else {
result.success(
saveImageToGallery(
BitmapFactory.decodeByteArray(
image,
0,
image.size,
),
quality,
name ?: "",
),
)
}
}

call.method == "saveFileToGallery" -> {
val path = call.argument<String>("file") ?: return
val name = call.argument<String>("name")
result.success(saveFileToGallery(path, name))
val folder = call.argument<String>("folder")
val isImage = call.argument<Boolean>("isImage") ?: true

if (Build.VERSION.SDK_INT >= 30) {
result.success(
saveFileToGallery30(
applicationContext!!,
path,
name ?: "",
folder ?: "",
isImage,
),
)
} else {
result.success(saveFileToGallery(path, name))
}
}

else -> result.notImplemented()
}

}


private fun generateUri(extension: String = "", name: String? = null): Uri {
var fileName = name ?: System.currentTimeMillis().toString()

if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) {
var uri = MediaStore.Images.Media.EXTERNAL_CONTENT_URI

Expand All @@ -66,7 +104,8 @@ class ImageGallerySaverPlugin : FlutterPlugin, MethodCallHandler {
}
return applicationContext?.contentResolver?.insert(uri, values)!!
} else {
val storePath = Environment.getExternalStorageDirectory().absolutePath + File.separator + Environment.DIRECTORY_PICTURES
val storePath =
Environment.getExternalStorageDirectory().absolutePath + File.separator + Environment.DIRECTORY_PICTURES
val appDir = File(storePath)
if (!appDir.exists()) {
appDir.mkdir()
Expand All @@ -79,16 +118,26 @@ class ImageGallerySaverPlugin : FlutterPlugin, MethodCallHandler {
}

private fun getMIMEType(extension: String): String? {
var type: String? = null;
var type: String? = null
if (!TextUtils.isEmpty(extension)) {
type = MimeTypeMap.getSingleton().getMimeTypeFromExtension(extension.toLowerCase())
}
return type
}

private fun saveImageToGallery(bmp: Bitmap, quality: Int, name: String?): HashMap<String, Any?> {
private fun saveImageToGallery(
bmp: Bitmap,
quality: Int,
name: String,
): HashMap<String, Any?> {
val context = applicationContext
val fileUri = generateUri("jpg", name = name)
val currentTime: Long = System.currentTimeMillis()
val imageDate: String =
SimpleDateFormat("yyyyMMdd-HHmmss", Locale.getDefault()).format(Date(currentTime))
val screenshotFileNameTemplate = "%s.jpg"
val imageFileName: String =
name.ifEmpty { String.format(screenshotFileNameTemplate, imageDate) }
val fileUri = generateUri("jpg", name = imageFileName)
return try {
val fos = context?.contentResolver?.openOutputStream(fileUri)!!
println("ImageGallerySaverPlugin $quality")
Expand All @@ -103,6 +152,167 @@ class ImageGallerySaverPlugin : FlutterPlugin, MethodCallHandler {
}
}

/**
* android 10 以上版本
*/
@TargetApi(Build.VERSION_CODES.Q)
fun saveImageToGallery30(
context: Context,
image: Bitmap,
name: String?,
folder: String = "",
): HashMap<String, Any?> {
val currentTime: Long = System.currentTimeMillis()
val imageDate: String =
SimpleDateFormat("yyyyMMdd-HHmmss", Locale.getDefault()).format(Date(currentTime))
val screenshotFileNameTemplate = "%s.png"
val mImageFileName: String = name ?: String.format(screenshotFileNameTemplate, imageDate)
val values = ContentValues()

values.put(
MediaStore.MediaColumns.RELATIVE_PATH,
if (folder.isEmpty()) {
Environment.DIRECTORY_PICTURES
} else {
"${Environment.DIRECTORY_PICTURES}${File.separator}$folder"
},
)
values.put(MediaStore.MediaColumns.DISPLAY_NAME, mImageFileName)
values.put(MediaStore.MediaColumns.MIME_TYPE, "image/png")
values.put(MediaStore.MediaColumns.DATE_ADDED, currentTime / 1000)
values.put(MediaStore.MediaColumns.DATE_MODIFIED, currentTime / 1000)
values.put(
MediaStore.MediaColumns.DATE_EXPIRES,
(currentTime + DateUtils.DAY_IN_MILLIS) / 1000,
)
values.put(MediaStore.MediaColumns.IS_PENDING, 1)
val resolver: ContentResolver = context.getContentResolver()
val uri: Uri? = resolver.insert(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, values)
if (uri == null) return SaveResultModel(false, null, "").toHashMap()

try {
resolver.openOutputStream(uri).use { out ->
if (!image.compress(Bitmap.CompressFormat.PNG, 100, out!!)) {
return SaveResultModel(false, null, "").toHashMap()
}
}
values.clear()
values.put(MediaStore.MediaColumns.IS_PENDING, 0)
values.putNull(MediaStore.MediaColumns.DATE_EXPIRES)
resolver.update(uri, values, null, null)
} catch (e: IOException) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R) {
resolver.delete(uri, null)
}
return SaveResultModel(false, null, "").toHashMap()
}
return SaveResultModel(true, null, "").toHashMap()
}

@TargetApi(Build.VERSION_CODES.Q)
private fun saveFileToGallery30(
context: Context,
filePath: String,
name: String,
folder: String,
isImage: Boolean = true,
): HashMap<String, Any?> {
var fileName = filePath
if (filePath.contains('/')) {
fileName = filePath.substringAfterLast("/")
}
var suffix = "png"
if (fileName.contains(".")) {
suffix = fileName.substringAfterLast(".", "")
}
val isImageSuffix = suffix.equals("png", ignoreCase = true)
|| suffix.equals("webp", ignoreCase = true)
|| suffix.equals("jpg", ignoreCase = true)
|| suffix.equals("jpeg", ignoreCase = true)
|| suffix.equals("heic", ignoreCase = true)
|| suffix.equals("heif", ignoreCase = true)
|| suffix.equals("gif", ignoreCase = true)
|| suffix.equals("apng", ignoreCase = true)
|| suffix.equals("raw", ignoreCase = true)
|| suffix.equals("svg", ignoreCase = true)
|| suffix.equals("bmp", ignoreCase = true)
|| suffix.equals("tif", ignoreCase = true)

if (isImage && !isImageSuffix) {
suffix = "png"
}
val currentTime: Long = System.currentTimeMillis()
val imageDate: String =
SimpleDateFormat("yyyyMMdd-HHmmss", Locale.getDefault()).format(Date(currentTime))
val screenshotFileNameTemplate = "%s.$suffix"
val mImageFileName: String =
name.ifEmpty { String.format(screenshotFileNameTemplate, imageDate) }
val values = ContentValues()

values.put(
MediaStore.MediaColumns.RELATIVE_PATH,
if (folder.isEmpty()) {
if (isImage) {
Environment.DIRECTORY_PICTURES
} else {
Environment.DIRECTORY_MOVIES
}
} else {
if (isImage) {
"${Environment.DIRECTORY_PICTURES}${File.separator}$folder"
} else {
"${Environment.DIRECTORY_MOVIES}${File.separator}$folder"
}
},
)
values.put(MediaStore.MediaColumns.DISPLAY_NAME, mImageFileName)
try {
values.put(
MediaStore.MediaColumns.MIME_TYPE,
if (isImage) "image/$suffix" else "video/$suffix",
)
} catch (e: java.lang.Exception) {
}
values.put(MediaStore.MediaColumns.DATE_ADDED, currentTime / 1000)
values.put(MediaStore.MediaColumns.DATE_MODIFIED, currentTime / 1000)
values.put(
MediaStore.MediaColumns.DATE_EXPIRES,
(currentTime + DateUtils.DAY_IN_MILLIS) / 1000,
)
values.put(MediaStore.MediaColumns.IS_PENDING, 1)
val resolver: ContentResolver = context.getContentResolver()
val uri: Uri? = resolver.insert(
if (isImage) {
MediaStore.Images.Media.EXTERNAL_CONTENT_URI
} else {
MediaStore.Video.Media.EXTERNAL_CONTENT_URI
},
values,
)
if (uri == null) return SaveResultModel(false, null, "").toHashMap()
try {
val fileInputStream = FileInputStream(filePath)
val data = ByteArray(1024)
var read = 0
resolver.openOutputStream(uri).use { out ->
while ((fileInputStream.read(data, 0, data.size).also { read = it }) != -1) {
out?.write(data, 0, read)
}
}
values.clear()
values.put(MediaStore.MediaColumns.IS_PENDING, 0)
values.putNull(MediaStore.MediaColumns.DATE_EXPIRES)
fileInputStream.close()
resolver.update(uri, values, null, null)
} catch (e: IOException) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R) {
resolver.delete(uri, null)
}
return SaveResultModel(false, null, "").toHashMap()
}
return SaveResultModel(true, null, "").toHashMap()
}

private fun saveFileToGallery(filePath: String, name: String?): HashMap<String, Any?> {
val context = applicationContext
return try {
Expand Down Expand Up @@ -135,21 +345,22 @@ class ImageGallerySaverPlugin : FlutterPlugin, MethodCallHandler {

override fun onDetachedFromEngine(binding: FlutterPlugin.FlutterPluginBinding) {
applicationContext = null
methodChannel!!.setMethodCallHandler(null);
methodChannel = null;
methodChannel!!.setMethodCallHandler(null)
methodChannel = null
}

private fun onAttachedToEngine(applicationContext: Context, messenger: BinaryMessenger) {
this.applicationContext = applicationContext
methodChannel = MethodChannel(messenger, "image_gallery_saver")
methodChannel!!.setMethodCallHandler(this)
}

}

class SaveResultModel(var isSuccess: Boolean,
var filePath: String? = null,
var errorMessage: String? = null) {
class SaveResultModel(
var isSuccess: Boolean,
var filePath: String? = null,
var errorMessage: String? = null,
) {
fun toHashMap(): HashMap<String, Any?> {
val hashMap = HashMap<String, Any?>()
hashMap["isSuccess"] = isSuccess
Expand Down
6 changes: 3 additions & 3 deletions example/android/app/build.gradle
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -26,7 +26,7 @@ apply plugin: 'kotlin-android'
apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"

android {
compileSdkVersion 31
compileSdkVersion 33

compileOptions {
sourceCompatibility JavaVersion.VERSION_1_8
Expand All @@ -43,8 +43,8 @@ android {
defaultConfig {
// TODO: Specify your own unique Application ID (https://developer.android.com/studio/build/application-id.html).
applicationId "com.example.imagegallerysaverexample"
minSdkVersion 16
targetSdkVersion 29
minSdkVersion 21
targetSdkVersion 33
versionCode flutterVersionCode.toInteger()
versionName flutterVersionName
testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
Expand Down
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