fixed bug, only share file once

.gitignore

@@ -10,3 +10,4 @@ build/
 ios/.generated/
 packages
 pubspec.lock
+.vscode

README.md

@@ -59,7 +59,7 @@ AdvancedShare.generic(
 ```
 ``` dart
 AdvancedShare.generic(
-    url: "file:///storage/emulated/0/Download/test.txt"
+    url: "content://{applicationId}.adv_provider/shared/myfile.jpg"
 );
 ```
 ``` dart

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

@@ -1,2 +1,2 @@
-connection.project.dir=../example/android
+connection.project.dir=
 eclipse.preferences.version=1

android/src/main/AndroidManifest.xml

@@ -1,7 +1,8 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
   package="in.mertcan.advancedshare">
   <application>
-          <provider
+        <!-- Define your provider -->
+        <provider
             android:name="android.support.v4.content.FileProvider"
             android:authorities="${applicationId}.adv_provider"
             android:exported="false"

android/src/main/java/in/mertcan/advancedshare/AdvancedSharePlugin.java

@@ -33,7 +33,6 @@ public static void registerWith(Registrar registrar) {
     final MethodChannel channel = new MethodChannel(registrar.messenger(), CHANNEL);
     AdvancedSharePlugin instance = new AdvancedSharePlugin(registrar);
     channel.setMethodCallHandler(instance);
-
   }
 
   @Override

android/src/main/java/in/mertcan/advancedshare/FileHelper.java

@@ -15,6 +15,8 @@
 import java.io.IOException;
 
 public class FileHelper {
+    private static final String SHARED_PROVIDER_AUTHORITY = ".adv_provider";
+    private static final String SHARED_FOLDER= "shared";
     private final Registrar registrar;
     private final String authorities;
     private String url;
@@ -24,14 +26,14 @@ public class FileHelper {
 
     public FileHelper(Registrar registrar, String url) {
         this.registrar = registrar;
-        this.authorities = registrar.context().getPackageName() + ".adv_provider";
+        this.authorities = registrar.context().getPackageName() + SHARED_PROVIDER_AUTHORITY;
         this.url = url;
         this.uri = Uri.parse(this.url);
     }
 
     public FileHelper(Registrar registrar, String url, String type) {
         this.registrar = registrar;
-        this.authorities = registrar.context().getPackageName() + ".adv_provider";
+        this.authorities = registrar.context().getPackageName() + SHARED_PROVIDER_AUTHORITY;
         this.url = url;
         this.uri = Uri.parse(url);
         this.type = type;
@@ -106,19 +108,19 @@ private String getRealPath(Uri uri) {
     public Uri getUri() {
         final MimeTypeMap mime = MimeTypeMap.getSingleton();
         extension = mime.getExtensionFromMimeType(getType());
-
         if (isBase64File()) {
-            final String tempPath = registrar.context().getCacheDir().getPath();
             final String prefix = "" + System.currentTimeMillis() / 1000;
             String encodedFile = uri.getSchemeSpecificPart()
                     .substring(uri.getSchemeSpecificPart().indexOf(";base64,") + 8);
             try {
-                File tempFile = new File(tempPath, prefix + "." + extension);
-                final FileOutputStream stream = new FileOutputStream(tempFile);
+                final File sharedFolder = new File(registrar.context().getFilesDir(), SHARED_FOLDER);
+                sharedFolder.mkdirs();
+                final File sharedFile = File.createTempFile(prefix, "." + extension, sharedFolder);
+                final FileOutputStream stream = new FileOutputStream(sharedFile);
                 stream.write(Base64.decode(encodedFile, Base64.DEFAULT));
                 stream.flush();
                 stream.close();
-                return FileProvider.getUriForFile(registrar.context(), authorities, tempFile);
+                return FileProvider.getUriForFile(registrar.context(), this.authorities, sharedFile);
             } catch (IOException e) {
                 e.printStackTrace();
             }

android/src/main/java/in/mertcan/advancedshare/shareintents/Base.java

@@ -1,54 +1,67 @@
 package in.mertcan.advancedshare.shareintents;
 
 import io.flutter.plugin.common.PluginRegistry.Registrar;
-
 import android.content.Intent;
-
+import android.content.pm.PackageManager;
+import android.content.pm.ResolveInfo;
+import android.support.v4.app.ShareCompat;
+import android.net.Uri;
 import java.util.Map;
-
+import java.util.List;
 import in.mertcan.advancedshare.FileHelper;
 
 public abstract class Base {
     protected final Registrar registrar;
     protected Map params;
     protected String title = "Share";
     protected FileHelper fileHelper;
-    protected Intent intent;
+    protected ShareCompat.IntentBuilder intentBuilder;
 
     public Base(Registrar registrar) {
         this.registrar = registrar;
-        this.intent = new Intent();
-        this.intent.setAction(Intent.ACTION_SEND);
-        this.intent.setType("text/plain");
+        this.intentBuilder = ShareCompat.IntentBuilder.from(this.registrar.activity());
     }
-
     public int share(Map params) {
         this.params = params;
         fileHelper = getFileHelper(params);
-
         if (checkKey("title")) {
             title = (String) params.get("title");
+            intentBuilder.setChooserTitle(title);
         }
-
         if (checkKey("msg")) {
-            intent.putExtra(Intent.EXTRA_TEXT, (String) params.get("msg"));
+            intentBuilder.setText((String) params.get("msg"));
         }
-
         if (checkKey("subject")) {
-            intent.putExtra(Intent.EXTRA_SUBJECT, (String) params.get("subject"));
+            intentBuilder.setSubject((String) params.get("subject"));
         }
-
         if (checkKey("url")) {
             if (fileHelper.isFile()) {
-                intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
-                intent.putExtra(Intent.EXTRA_STREAM, fileHelper.getUri());
-                intent.setType(fileHelper.getType());
+                final String SHARED_PROVIDER_AUTHORITY = registrar.context().getPackageName() + ".adv_provider";
+                final Uri uri = (Uri) fileHelper.getUri();
+                intentBuilder.setType(fileHelper.getType());
+                intentBuilder.setStream(uri);
+
+                List<ResolveInfo> resInfoList = this.registrar.context().getPackageManager().queryIntentActivities(intentBuilder.getIntent(), PackageManager.MATCH_DEFAULT_ONLY);
+                for (ResolveInfo resolveInfo : resInfoList) {
+                    String packageName = resolveInfo.activityInfo.packageName;
+                    this.registrar.context().grantUriPermission(packageName, uri, Intent.FLAG_GRANT_WRITE_URI_PERMISSION | Intent.FLAG_GRANT_READ_URI_PERMISSION);
+                }
             }
         }
         return 0;
     }
-
     protected void openChooser() {
+        final Intent chooser = intentBuilder.createChooserIntent();
+        if (registrar.activity() == null) {
+            chooser.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
+            registrar.context().startActivity(chooser);
+        } else {
+            registrar.activity().startActivity(chooser);
+        }
+    }
+    protected void openSingleApplication(String packageName) {
+        final Intent intent = intentBuilder.getIntent();
+        intent.setPackage(packageName);
         Intent chooser = Intent.createChooser(intent, title);
         if (registrar.activity() == null) {
             chooser.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
@@ -57,7 +70,6 @@ protected void openChooser() {
             registrar.activity().startActivity(chooser);
         }
     }
-
     protected FileHelper getFileHelper(Map params) {
         String url = "";
         if (checkKey("url")) {
@@ -69,13 +81,10 @@ protected FileHelper getFileHelper(Map params) {
             return new FileHelper(registrar, (String) url);
         }
     }
-
     public boolean checkKey(String key) {
         if (params != null && !params.isEmpty()) {
             return params.get(key) != null;
         }
-
         return false;
     }
-
 }

android/src/main/java/in/mertcan/advancedshare/shareintents/SingleBase.java

@@ -19,8 +19,7 @@ public int share(Map params) {
         super.share(params);
         if (getPackage() != null) {
             if (isPackageInstalled(getPackage(), registrar.context())) {
-                this.intent.setPackage(getPackage());
-                openChooser();
+                openSingleApplication(getPackage());
                 return 1;
             } else {
                 return 2;

android/src/main/res/xml/adv_share_provider_paths.xml

@@ -1,5 +1,4 @@
 <?xml version="1.0" encoding="utf-8"?>
 <paths xmlns:android="http://schemas.android.com/apk/res/android">
-    <cache-path name="cache_files" path="." />
-    <external-path name="external_files" path="."/>
+    <files-path name="shared" path="shared/" />
 </paths>

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

@@ -1,2 +1,2 @@
-#Wed May 02 23:10:33 EET 2018
 connection.project.dir=
+eclipse.preferences.version=1

example/android/app/src/main/AndroidManifest.xml

@@ -6,8 +6,8 @@
          to allow setting breakpoints, to provide hot reload, etc.
     -->
     <uses-permission android:name="android.permission.INTERNET"/>
-  <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>
-  <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
+    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>
+    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
     <!-- io.flutter.app.FlutterApplication is an android.app.Application that
          calls FlutterMain.startInitialization(this); in its onCreate method.
          In most cases you can leave this as-is, but you if you want to provide

example/ios/Flutter/Debug.xcconfig

@@ -1 +1,2 @@
+#include "Pods/Target Support Files/Pods-Runner/Pods-Runner.debug.xcconfig"
 #include "Generated.xcconfig"

example/ios/Flutter/Release.xcconfig

@@ -1 +1,2 @@
+#include "Pods/Target Support Files/Pods-Runner/Pods-Runner.release.xcconfig"
 #include "Generated.xcconfig"

example/ios/Podfile

@@ -0,0 +1,69 @@
+# Uncomment this line to define a global platform for your project
+# platform :ios, '9.0'
+
+# CocoaPods analytics sends network stats synchronously affecting flutter build latency.
+ENV['COCOAPODS_DISABLE_STATS'] = 'true'
+
+project 'Runner', {
+  'Debug' => :debug,
+  'Profile' => :release,
+  'Release' => :release,
+}
+
+def parse_KV_file(file, separator='=')
+  file_abs_path = File.expand_path(file)
+  if !File.exists? file_abs_path
+    return [];
+  end
+  pods_ary = []
+  skip_line_start_symbols = ["#", "/"]
+  File.foreach(file_abs_path) { |line|
+      next if skip_line_start_symbols.any? { |symbol| line =~ /^\s*#{symbol}/ }
+      plugin = line.split(pattern=separator)
+      if plugin.length == 2
+        podname = plugin[0].strip()
+        path = plugin[1].strip()
+        podpath = File.expand_path("#{path}", file_abs_path)
+        pods_ary.push({:name => podname, :path => podpath});
+      else
+        puts "Invalid plugin specification: #{line}"
+      end
+  }
+  return pods_ary
+end
+
+target 'Runner' do
+  # Prepare symlinks folder. We use symlinks to avoid having Podfile.lock
+  # referring to absolute paths on developers' machines.
+  system('rm -rf .symlinks')
+  system('mkdir -p .symlinks/plugins')
+
+  # Flutter Pods
+  generated_xcode_build_settings = parse_KV_file('./Flutter/Generated.xcconfig')
+  if generated_xcode_build_settings.empty?
+    puts "Generated.xcconfig must exist. If you're running pod install manually, make sure flutter packages get is executed first."
+  end
+  generated_xcode_build_settings.map { |p|
+    if p[:name] == 'FLUTTER_FRAMEWORK_DIR'
+      symlink = File.join('.symlinks', 'flutter')
+      File.symlink(File.dirname(p[:path]), symlink)
+      pod 'Flutter', :path => File.join(symlink, File.basename(p[:path]))
+    end
+  }
+
+  # Plugin Pods
+  plugin_pods = parse_KV_file('../.flutter-plugins')
+  plugin_pods.map { |p|
+    symlink = File.join('.symlinks', 'plugins', p[:name])
+    File.symlink(p[:path], symlink)
+    pod p[:name], :path => File.join(symlink, 'ios')
+  }
+end
+
+post_install do |installer|
+  installer.pods_project.targets.each do |target|
+    target.build_configurations.each do |config|
+      config.build_settings['ENABLE_BITCODE'] = 'NO'
+    end
+  end
+end

pubspec.yaml

@@ -15,35 +15,4 @@ flutter:
 
 environment:
   sdk: ">=2.0.0-dev.28.0 <3.0.0"
-  flutter: ">=0.1.4 <2.0.0"
-
-  # To add assets to your plugin package, add an assets section, like this:
-  # assets:
-  #  - images/a_dot_burr.jpeg
-  #  - images/a_dot_ham.jpeg
-  #
-  # For details regarding assets in packages, see
-  # https://flutter.io/assets-and-images/#from-packages
-  #
-  # An image asset can refer to one or more resolution-specific "variants", see
-  # https://flutter.io/assets-and-images/#resolution-aware.
-
-  # To add custom fonts to your plugin package, add a fonts section here,
-  # in this "flutter" section. Each entry in this list should have a
-  # "family" key with the font family name, and a "fonts" key with a
-  # list giving the asset and other descriptors for the font. For
-  # example:
-  # fonts:
-  #   - family: Schyler
-  #     fonts:
-  #       - asset: fonts/Schyler-Regular.ttf
-  #       - asset: fonts/Schyler-Italic.ttf
-  #         style: italic
-  #   - family: Trajan Pro
-  #     fonts:
-  #       - asset: fonts/TrajanPro.ttf
-  #       - asset: fonts/TrajanPro_Bold.ttf
-  #         weight: 700
-  #
-  # For details regarding fonts in packages, see
-  # https://flutter.io/custom-fonts/#from-packages
+  flutter: ">=0.1.4 <2.0.0"