From 9878c1108ea99c6154f9c08732135aefe13bb28f Mon Sep 17 00:00:00 2001
From: 13574 <1357496606@qq.com>
Date: Sat, 9 Sep 2023 23:35:17 +0800
Subject: [PATCH] feat: Implemented copy image to clipboard on Android

---
 android/app/src/main/AndroidManifest.xml      | 17 ++++---
 .../kotlin/com/lifegpc/ehf/MainActivity.kt    | 10 ++--
 .../kotlin/com/lifegpc/ehf/MyApplication.kt   | 19 ++++++++
 .../ehf/data/litepal/ClipboardImageItem.kt    | 10 ++++
 .../ehf/{ => data}/mmkv/SAFSettings.kt        |  2 +-
 .../ehf/provider/ClipboardImageProvider.kt    |  6 +++
 .../com/lifegpc/ehf/util/ClipboardUtils.kt    | 46 +++++++++++++++++++
 .../ehf/{ => util}/MethodChannelUtils.kt      |  2 +-
 .../src/main/res/xml/file_provider_config.xml |  6 +++
 lib/platform/clipboard.dart                   |  9 ++++
 10 files changed, 114 insertions(+), 13 deletions(-)
 create mode 100644 android/app/src/main/kotlin/com/lifegpc/ehf/MyApplication.kt
 create mode 100644 android/app/src/main/kotlin/com/lifegpc/ehf/data/litepal/ClipboardImageItem.kt
 rename android/app/src/main/kotlin/com/lifegpc/ehf/{ => data}/mmkv/SAFSettings.kt (82%)
 create mode 100644 android/app/src/main/kotlin/com/lifegpc/ehf/provider/ClipboardImageProvider.kt
 create mode 100644 android/app/src/main/kotlin/com/lifegpc/ehf/util/ClipboardUtils.kt
 rename android/app/src/main/kotlin/com/lifegpc/ehf/{ => util}/MethodChannelUtils.kt (99%)
 create mode 100644 android/app/src/main/res/xml/file_provider_config.xml
 create mode 100644 lib/platform/clipboard.dart

diff --git a/android/app/src/main/AndroidManifest.xml b/android/app/src/main/AndroidManifest.xml
index 2467925..ee7e305 100644
--- a/android/app/src/main/AndroidManifest.xml
+++ b/android/app/src/main/AndroidManifest.xml
@@ -2,7 +2,7 @@
     <uses-permission android:name="android.permission.INTERNET"/>
     <application
         android:label="@string/app_name"
-        android:name="${applicationName}"
+        android:name=".MyApplication"
         android:icon="@mipmap/ic_launcher">
         <activity
             android:name=".MainActivity"
@@ -12,10 +12,6 @@
             android:configChanges="orientation|keyboardHidden|keyboard|screenSize|smallestScreenSize|locale|layoutDirection|fontScale|screenLayout|density|uiMode"
             android:hardwareAccelerated="true"
             android:windowSoftInputMode="adjustResize">
-            <!-- Specifies an Android theme to apply to this Activity as soon as
-                 the Android process has started. This theme is visible to the user
-                 while the Flutter UI initializes. After that, this theme continues
-                 to determine the Window background behind the Flutter UI. -->
             <meta-data
               android:name="io.flutter.embedding.android.NormalTheme"
               android:resource="@style/NormalTheme"
@@ -25,10 +21,17 @@
                 <category android:name="android.intent.category.LAUNCHER"/>
             </intent-filter>
         </activity>
-        <!-- Don't delete the meta-data below.
-             This is used by the Flutter tool to generate GeneratedPluginRegistrant.java -->
         <meta-data
             android:name="flutterEmbedding"
             android:value="2" />
+        <provider
+            android:authorities="com.lifegpc.ehf.ClipboardImageProvider"
+            android:name=".provider.ClipboardImageProvider"
+            android:grantUriPermissions="true"
+            android:exported="false">
+            <meta-data
+                android:name="android.support.FILE_PROVIDER_PATHS"
+                android:resource="@xml/file_provider_config"/>
+        </provider>
     </application>
 </manifest>
diff --git a/android/app/src/main/kotlin/com/lifegpc/ehf/MainActivity.kt b/android/app/src/main/kotlin/com/lifegpc/ehf/MainActivity.kt
index e977572..2007dc8 100644
--- a/android/app/src/main/kotlin/com/lifegpc/ehf/MainActivity.kt
+++ b/android/app/src/main/kotlin/com/lifegpc/ehf/MainActivity.kt
@@ -4,25 +4,27 @@ import android.app.Activity
 import android.content.Intent
 import android.net.Uri
 import android.os.Bundle
+import androidx.core.content.FileProvider
 import androidx.documentfile.provider.DocumentFile
 import com.lifegpc.ehf.annotation.ChannelMethod
-import com.lifegpc.ehf.mmkv.SAFSettings
+import com.lifegpc.ehf.data.mmkv.SAFSettings
+import com.lifegpc.ehf.util.ClipboardUtils
+import com.lifegpc.ehf.util.MethodChannelUtils
 import io.flutter.embedding.android.FlutterActivity
 import io.flutter.embedding.engine.FlutterEngine
 import io.flutter.plugin.common.MethodChannel
+import java.io.FileOutputStream
 import java.lang.Exception
 
 class MainActivity : FlutterActivity() {
     private val safAuthorizationCode = 0x10086
     private var safAuthorizationResult: MethodChannel.Result? = null
     private var afterAuthSuccess:(()->Unit)?=null
-    override fun onCreate(savedInstanceState: Bundle?) {
-        super.onCreate(savedInstanceState)
-    }
 
     override fun configureFlutterEngine(flutterEngine: FlutterEngine) {
         super.configureFlutterEngine(flutterEngine)
         MethodChannelUtils.registerMethodChannel("lifegpc.eh_downloader_flutter/saf", flutterEngine, this)
+        MethodChannelUtils.registerMethodChannel("lifegpc.eh_downloader_flutter/clipboard",flutterEngine,ClipboardUtils)
     }
 
     @ChannelMethod(responseManually = true)
diff --git a/android/app/src/main/kotlin/com/lifegpc/ehf/MyApplication.kt b/android/app/src/main/kotlin/com/lifegpc/ehf/MyApplication.kt
new file mode 100644
index 0000000..6c42296
--- /dev/null
+++ b/android/app/src/main/kotlin/com/lifegpc/ehf/MyApplication.kt
@@ -0,0 +1,19 @@
+package com.lifegpc.ehf
+
+import android.app.Application
+import android.content.Context
+
+class MyApplication:Application() {
+    companion object{
+        @JvmStatic
+        private var mApplicationContext:Context?=null
+        @JvmStatic
+        @get:JvmName("_applicationContext")
+        val applicationContext:Context
+            get() = mApplicationContext!!
+    }
+    override fun onCreate() {
+        super.onCreate()
+        mApplicationContext=applicationContext
+    }
+}
\ No newline at end of file
diff --git a/android/app/src/main/kotlin/com/lifegpc/ehf/data/litepal/ClipboardImageItem.kt b/android/app/src/main/kotlin/com/lifegpc/ehf/data/litepal/ClipboardImageItem.kt
new file mode 100644
index 0000000..d68073b
--- /dev/null
+++ b/android/app/src/main/kotlin/com/lifegpc/ehf/data/litepal/ClipboardImageItem.kt
@@ -0,0 +1,10 @@
+package com.lifegpc.ehf.data.litepal
+
+import org.litepal.crud.LitePalSupport
+
+class ClipboardImageItem(
+    val uuid:String,
+    val mimeType:String
+):LitePalSupport() {
+    val id:Long=0
+}
\ No newline at end of file
diff --git a/android/app/src/main/kotlin/com/lifegpc/ehf/mmkv/SAFSettings.kt b/android/app/src/main/kotlin/com/lifegpc/ehf/data/mmkv/SAFSettings.kt
similarity index 82%
rename from android/app/src/main/kotlin/com/lifegpc/ehf/mmkv/SAFSettings.kt
rename to android/app/src/main/kotlin/com/lifegpc/ehf/data/mmkv/SAFSettings.kt
index 1a4c21a..0612643 100644
--- a/android/app/src/main/kotlin/com/lifegpc/ehf/mmkv/SAFSettings.kt
+++ b/android/app/src/main/kotlin/com/lifegpc/ehf/data/mmkv/SAFSettings.kt
@@ -1,4 +1,4 @@
-package com.lifegpc.ehf.mmkv
+package com.lifegpc.ehf.data.mmkv
 
 import com.dylanc.mmkv.MMKVOwner
 import com.dylanc.mmkv.mmkvString
diff --git a/android/app/src/main/kotlin/com/lifegpc/ehf/provider/ClipboardImageProvider.kt b/android/app/src/main/kotlin/com/lifegpc/ehf/provider/ClipboardImageProvider.kt
new file mode 100644
index 0000000..1d2dc8d
--- /dev/null
+++ b/android/app/src/main/kotlin/com/lifegpc/ehf/provider/ClipboardImageProvider.kt
@@ -0,0 +1,6 @@
+package com.lifegpc.ehf.provider
+
+import android.net.Uri
+import androidx.core.content.FileProvider
+
+class ClipboardImageProvider:FileProvider()
\ No newline at end of file
diff --git a/android/app/src/main/kotlin/com/lifegpc/ehf/util/ClipboardUtils.kt b/android/app/src/main/kotlin/com/lifegpc/ehf/util/ClipboardUtils.kt
new file mode 100644
index 0000000..5a00831
--- /dev/null
+++ b/android/app/src/main/kotlin/com/lifegpc/ehf/util/ClipboardUtils.kt
@@ -0,0 +1,46 @@
+package com.lifegpc.ehf.util
+
+import android.content.ClipData
+import android.content.ClipboardManager
+import android.content.Context
+import androidx.core.content.FileProvider
+import com.lifegpc.ehf.MyApplication
+import com.lifegpc.ehf.annotation.ChannelMethod
+import java.io.File
+import java.util.UUID
+
+object ClipboardUtils {
+    private const val AUTHORITY="com.lifegpc.ehf.ClipboardImageProvider"
+    @ChannelMethod
+    fun copyImageToClipboard(mimeType:String,byteArray: ByteArray){
+        val file= saveToImageCache(mimeType, byteArray)
+        val uri=FileProvider.getUriForFile(MyApplication.applicationContext, AUTHORITY,file)
+
+        val cbm=MyApplication.applicationContext.getSystemService(Context.CLIPBOARD_SERVICE) as ClipboardManager
+        val clipData=ClipData("image", arrayOf(mimeType),ClipData.Item(uri))
+        cbm.setPrimaryClip(clipData)
+    }
+
+    private fun saveToImageCache(mimeType:String,byteArray: ByteArray):File{
+        val dir=File(MyApplication.applicationContext.filesDir,"images")
+        if (!dir.exists()){
+            dir.mkdirs()
+        }
+        val name=UUID.randomUUID().toString()
+
+        val file=File(dir,"$name.${mimeTypeToExtName(mimeType)}")
+
+        file.outputStream().use {
+            it.write(byteArray)
+        }
+
+        return file
+    }
+
+    private fun mimeTypeToExtName(mimeType: String)=when(mimeType){
+        "image/png"->"png"
+        "image/jpeg"->"png"
+        "image/gif"->"gif"
+        else->throw IllegalArgumentException("$mimeType is not supported")
+    }
+}
\ No newline at end of file
diff --git a/android/app/src/main/kotlin/com/lifegpc/ehf/MethodChannelUtils.kt b/android/app/src/main/kotlin/com/lifegpc/ehf/util/MethodChannelUtils.kt
similarity index 99%
rename from android/app/src/main/kotlin/com/lifegpc/ehf/MethodChannelUtils.kt
rename to android/app/src/main/kotlin/com/lifegpc/ehf/util/MethodChannelUtils.kt
index 84a2af0..b096d40 100644
--- a/android/app/src/main/kotlin/com/lifegpc/ehf/MethodChannelUtils.kt
+++ b/android/app/src/main/kotlin/com/lifegpc/ehf/util/MethodChannelUtils.kt
@@ -1,4 +1,4 @@
-package com.lifegpc.ehf
+package com.lifegpc.ehf.util
 
 import android.util.Log
 import com.lifegpc.ehf.annotation.ChannelMethod
diff --git a/android/app/src/main/res/xml/file_provider_config.xml b/android/app/src/main/res/xml/file_provider_config.xml
new file mode 100644
index 0000000..9f55b7e
--- /dev/null
+++ b/android/app/src/main/res/xml/file_provider_config.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<paths>
+    <files-path
+        name="images"
+        path="images"/>
+</paths>
\ No newline at end of file
diff --git a/lib/platform/clipboard.dart b/lib/platform/clipboard.dart
new file mode 100644
index 0000000..eff1bcf
--- /dev/null
+++ b/lib/platform/clipboard.dart
@@ -0,0 +1,9 @@
+import 'package:flutter/services.dart';
+
+class Clipboard{
+  final MethodChannel _clipboardChannel=const MethodChannel("lifegpc.eh_downloader_flutter/clipboard");
+
+  Future<void> copyImageToClipboard(String mimeType,Uint8List bytes)async{
+    return _clipboardChannel.invokeMethod("copyImageToClipboard",[mimeType,bytes]);
+  }
+}
\ No newline at end of file