Enable Sharing a file from Files app

Author: martinwork

app/src/main/AndroidManifest.xml

@@ -114,6 +114,15 @@
                       android:scheme="content"/>
             </intent-filter>
 
+            <!-- This filter works, when sharing a hex file from Files app -->
+            <!-- https://developer.android.com/training/sharing/receive#update-manifest -->
+            <intent-filter>
+                <action android:name="android.intent.action.SEND"/>
+                <category android:name="android.intent.category.DEFAULT"/>
+                <category android:name="android.intent.category.BROWSABLE"/>
+                <data android:mimeType="application/octet-stream" />
+            </intent-filter>
+
         </activity>
         <activity
             android:name=".ui.activity.NotificationActivity"

app/src/main/java/com/samsung/microbit/ui/activity/ProjectActivity.java

@@ -77,6 +77,7 @@
 import java.io.InputStream;
 import java.io.InputStreamReader;
 import java.io.OutputStream;
+import java.net.URI;
 import java.net.URLDecoder;
 import java.nio.ByteBuffer;
 import java.nio.ByteOrder;
@@ -466,11 +467,18 @@ private void handleIncomingIntent(Intent intent) {
         String fileName;
 
         Project externalProject = null;
+        Uri uri = null;
 
-        if(intent.getData() != null && intent.getData().getEncodedPath() != null) {
-            isOpenByOtherApp = true;
+        String action = intent.getAction();
+        String type = intent.getType();
+        if ( Intent.ACTION_SEND.equals(action) && intent.hasExtra( Intent.EXTRA_STREAM)) {
+            uri = (Uri) intent.getParcelableExtra(Intent.EXTRA_STREAM);
+        } else if(intent.getData() != null && intent.getData().getEncodedPath() != null) {
+            uri = intent.getData();
+        }
 
-            Uri uri = intent.getData();
+        if ( uri != null) {
+            isOpenByOtherApp = true;
             String encodedPath = uri.getEncodedPath();
 
             String scheme = uri.getScheme();
@@ -479,9 +487,7 @@ private void handleIncomingIntent(Intent intent) {
                 fileName = fileNameForFlashing(fullPathOfFile);
                 externalProject = fileName == null ? null : new Project(fileName, fullPathOfFile, 0, null, false);
             } else if(scheme.equals("content")) {
-
                 Cursor cursor = null;
-
                 try {
                     cursor = getContentResolver().query(uri, null, null, null, null);
 
@@ -541,7 +547,7 @@ private void handleIncomingIntent(Intent intent) {
         if ( mProgramToSend != null) {
             startBluetoothForFlashing();
         } else {
-            if (isOpenByOtherApp) {
+            if ( isOpenByOtherApp) {
                 Toast.makeText(this, "Not a micro:bit HEX file", Toast.LENGTH_LONG).show();
                 onFlashComplete();
             }