Android working

.gitignore

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+.DS_Store
+.atom/
+.idea
+.packages
+.pub/
+build/
+ios/.generated/
+packages
+pubspec.lock

.vscode/settings.json

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+{
+    "java.configuration.updateBuildConfiguration": "automatic"
+}

CHANGELOG.md

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+## [0.0.1] - TODO: Add release date.
+
+* TODO: Describe initial release.

android/.classpath

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+<?xml version="1.0" encoding="UTF-8"?>
+<classpath>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8/"/>
+	<classpathentry kind="con" path="org.eclipse.buildship.core.gradleclasspathcontainer"/>
+	<classpathentry kind="output" path="bin"/>
+</classpath>

android/.gitignore

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+*.iml
+.gradle
+/local.properties
+/.idea/workspace.xml
+/.idea/libraries
+.DS_Store
+/build
+/captures

android/.project

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+<?xml version="1.0" encoding="UTF-8"?>
+<projectDescription>
+	<name>flutter_native_image</name>
+	<comment>Project flutter_native_image created by Buildship.</comment>
+	<projects>
+	</projects>
+	<buildSpec>
+		<buildCommand>
+			<name>org.eclipse.jdt.core.javabuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+		<buildCommand>
+			<name>org.eclipse.buildship.core.gradleprojectbuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+	</buildSpec>
+	<natures>
+		<nature>org.eclipse.jdt.core.javanature</nature>
+		<nature>org.eclipse.buildship.core.gradleprojectnature</nature>
+	</natures>
+</projectDescription>

android/.settings/org.eclipse.buildship.core.prefs

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+connection.project.dir=../example/android
+eclipse.preferences.version=1

android/build.gradle

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+group 'com.example.flutternativeimage'
+version '1.0-SNAPSHOT'
+
+buildscript {
+    repositories {
+        google()
+        jcenter()
+    }
+
+    dependencies {
+        classpath 'com.android.tools.build:gradle:3.0.1'
+    }
+}
+
+rootProject.allprojects {
+    repositories {
+        google()
+        jcenter()
+    }
+}
+
+apply plugin: 'com.android.library'
+
+android {
+    compileSdkVersion 27
+
+    defaultConfig {
+        minSdkVersion 16
+        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
+    }
+    lintOptions {
+        disable 'InvalidPackage'
+    }
+}

android/gradle.properties

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+org.gradle.jvmargs=-Xmx1536M

android/settings.gradle

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+rootProject.name = 'flutter_native_image'

android/src/main/AndroidManifest.xml

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+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+  package="com.example.flutternativeimage">
+</manifest>

android/src/main/java/com/example/flutternativeimage/FlutterNativeImagePlugin.java

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+package com.example.flutternativeimage;
+
+import android.graphics.Bitmap;
+import android.graphics.BitmapFactory;
+
+import java.io.ByteArrayOutputStream;
+import java.io.File;
+import java.io.FileNotFoundException;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.OutputStream;
+
+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.MethodCall;
+import io.flutter.plugin.common.PluginRegistry.Registrar;
+
+/**
+ * FlutterNativeImagePlugin
+ */
+public class FlutterNativeImagePlugin implements MethodCallHandler {
+  /**
+   * Plugin registration.
+   */
+  public static void registerWith(Registrar registrar) {
+    final MethodChannel channel = new MethodChannel(registrar.messenger(), "flutter_native_image");
+    channel.setMethodCallHandler(new FlutterNativeImagePlugin());
+  }
+
+  @Override
+  public void onMethodCall(MethodCall call, Result result) {
+    if(call.method.equals("compressImage")) {
+      String fileName = call.argument("file");
+      int resizePercentage = call.argument("percentage");
+      int quality = call.argument("quality");
+
+      File file = new File(fileName);
+
+      if(!file.exists()) {
+        result.error("file does not exist", fileName, null);
+        return;
+      }
+
+      Bitmap bmp = BitmapFactory.decodeFile(fileName);
+      ByteArrayOutputStream bos = new ByteArrayOutputStream();
+
+      if (bmp.getHeight() > 1500 || bmp.getWidth() > 1500) {
+        int newWidth = (bmp.getWidth() / 100 * resizePercentage);
+        int newHeight = (bmp.getHeight() / 100 * resizePercentage);
+
+        bmp = Bitmap.createScaledBitmap(
+                bmp, newWidth, newHeight, false);
+      }
+
+      bmp.compress(Bitmap.CompressFormat.JPEG, 70, bos);
+
+      String outputFileName = getTempFileNameFromFile(file);
+
+      try {
+        OutputStream outputStream = new FileOutputStream(outputFileName);
+        bos.writeTo(outputStream);
+      } catch (FileNotFoundException e) {
+        e.printStackTrace();
+      } catch (IOException e) {
+        e.printStackTrace();
+      }
+
+      result.success(outputFileName);
+      return;
+    }
+    if (call.method.equals("getPlatformVersion")) {
+      result.success("Android " + android.os.Build.VERSION.RELEASE);
+    } else {
+      result.notImplemented();
+    }
+  }
+
+  private static String getTempFileNameFromFile(File file) {
+    String fileName = getFilenameWithoutExtension(file);
+    String newFileName = fileName.concat("_compressed.jpg");
+
+    return new File(pathComponent(file.getPath()), newFileName).getPath();
+  }
+
+  private static String pathComponent(String filename) {
+    int i = filename.lastIndexOf(File.separator);
+    return (i > -1) ? filename.substring(0, i) : filename;
+  }
+
+  private static String getFilenameWithoutExtension(File file) {
+    String fileName = file.getName();
+
+    if (fileName.indexOf(".") > 0) {
+      return fileName.substring(0, fileName.lastIndexOf("."));
+    } else {
+      return fileName;
+    }
+  }
+}

example/.gitignore

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+.DS_Store
+.atom/
+.idea
+.vscode/
+.packages
+.pub/
+build/
+ios/.generated/
+packages
+.flutter-plugins

example/.metadata

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+# This file tracks properties of this Flutter project.
+# Used by Flutter tool to assess capabilities and perform upgrades etc.
+#
+# This file should be version controlled and should not be manually edited.
+
+version:
+  revision: 3ea4d06340a97a1e9d7cae97567c64e0569dcaa2
+  channel: beta

example/README.md

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+# flutter_native_image_example
+
+Demonstrates how to use the flutter_native_image plugin.
+
+## Getting Started
+
+For help getting started with Flutter, view our online
+[documentation](https://flutter.io/).

example/android.iml

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+<?xml version="1.0" encoding="UTF-8"?>
+<module type="JAVA_MODULE" version="4">
+  <component name="NewModuleRootManager" inherit-compiler-output="true">
+    <exclude-output />
+    <content url="file://$MODULE_DIR$/android">
+      <sourceFolder url="file://$MODULE_DIR$/android/app/src/main/java" isTestSource="false" />
+    </content>
+    <orderEntry type="jdk" jdkName="Android API 25 Platform" jdkType="Android SDK" />
+    <orderEntry type="sourceFolder" forTests="false" />
+    <orderEntry type="library" name="Flutter for Android" level="project" />
+  </component>
+</module>

example/android/.gitignore

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+*.iml
+*.class
+.gradle
+/local.properties
+/.idea/workspace.xml
+/.idea/libraries
+.DS_Store
+/build
+/captures
+GeneratedPluginRegistrant.java

example/android/.project

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+<?xml version="1.0" encoding="UTF-8"?>
+<projectDescription>
+	<name>android</name>
+	<comment>Project android created by Buildship.</comment>
+	<projects>
+	</projects>
+	<buildSpec>
+		<buildCommand>
+			<name>org.eclipse.buildship.core.gradleprojectbuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+	</buildSpec>
+	<natures>
+		<nature>org.eclipse.buildship.core.gradleprojectnature</nature>
+	</natures>
+</projectDescription>

example/android/.settings/org.eclipse.buildship.core.prefs

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+#Sat Mar 10 11:25:08 CET 2018
+connection.project.dir=

example/android/app/.classpath

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+<?xml version="1.0" encoding="UTF-8"?>
+<classpath>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8/"/>
+	<classpathentry kind="con" path="org.eclipse.buildship.core.gradleclasspathcontainer"/>
+	<classpathentry kind="output" path="bin"/>
+</classpath>

example/android/app/.project

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+<?xml version="1.0" encoding="UTF-8"?>
+<projectDescription>
+	<name>app</name>
+	<comment>Project app created by Buildship.</comment>
+	<projects>
+	</projects>
+	<buildSpec>
+		<buildCommand>
+			<name>org.eclipse.jdt.core.javabuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+		<buildCommand>
+			<name>org.eclipse.buildship.core.gradleprojectbuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+	</buildSpec>
+	<natures>
+		<nature>org.eclipse.jdt.core.javanature</nature>
+		<nature>org.eclipse.buildship.core.gradleprojectnature</nature>
+	</natures>
+</projectDescription>

example/android/app/.settings/org.eclipse.buildship.core.prefs

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+#Sat Mar 10 11:25:08 CET 2018
+connection.project.dir=..

example/android/app/build.gradle

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+def localProperties = new Properties()
+def localPropertiesFile = rootProject.file('local.properties')
+if (localPropertiesFile.exists()) {
+    localPropertiesFile.withReader('UTF-8') { reader ->
+        localProperties.load(reader)
+    }
+}
+
+def flutterRoot = localProperties.getProperty('flutter.sdk')
+if (flutterRoot == null) {
+    throw new GradleException("Flutter SDK not found. Define location with flutter.sdk in the local.properties file.")
+}
+
+apply plugin: 'com.android.application'
+apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"
+
+android {
+    compileSdkVersion 27
+
+    lintOptions {
+        disable 'InvalidPackage'
+    }
+
+    defaultConfig {
+        // TODO: Specify your own unique Application ID (https://developer.android.com/studio/build/application-id.html).
+        applicationId "com.example.flutternativeimageexample"
+        minSdkVersion 16
+        targetSdkVersion 27
+        versionCode 1
+        versionName "1.0"
+        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
+    }
+
+    buildTypes {
+        release {
+            // TODO: Add your own signing config for the release build.
+            // Signing with the debug keys for now, so `flutter run --release` works.
+            signingConfig signingConfigs.debug
+        }
+    }
+}
+
+flutter {
+    source '../..'
+}
+
+dependencies {
+    testImplementation 'junit:junit:4.12'
+    androidTestImplementation 'com.android.support.test:runner:1.0.1'
+    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1'
+}