add file provider to share files on android n

src/main/AndroidManifest.xml

@@ -1,8 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
-<manifest
-    package="eu.siacs.conversations"
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:tools="http://schemas.android.com/tools">
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    package="eu.siacs.conversations">
 
     <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
     <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
@@ -78,8 +77,10 @@
             </intent-filter>
             <intent-filter android:autoVerify="true">
                 <action android:name="android.intent.action.VIEW" />
+
                 <category android:name="android.intent.category.DEFAULT" />
                 <category android:name="android.intent.category.BROWSABLE" />
+
                 <data android:scheme="https" />
                 <data android:host="conversations.im" />
                 <data android:pathPrefix="/i/" />
@@ -90,19 +91,19 @@
         <activity
             android:name=".ui.WelcomeActivity"
             android:label="@string/app_name"
-            android:screenOrientation="portrait"
-            android:launchMode="singleTask"/>
+            android:launchMode="singleTask"
+            android:screenOrientation="portrait" />
         <activity
             android:name=".ui.MagicCreateActivity"
             android:label="@string/create_account"
-            android:screenOrientation="portrait"
-            android:launchMode="singleTask"/>
+            android:launchMode="singleTask"
+            android:screenOrientation="portrait" />
         <activity
             android:name=".ui.SetPresenceActivity"
-            android:label="@string/change_presence"
             android:configChanges="orientation|screenSize"
-            android:windowSoftInputMode="stateHidden|adjustResize"
-            android:launchMode="singleTask"/>
+            android:label="@string/change_presence"
+            android:launchMode="singleTask"
+            android:windowSoftInputMode="stateHidden|adjustResize" />
         <activity
             android:name=".ui.SettingsActivity"
             android:label="@string/title_activity_settings" />
@@ -163,6 +164,7 @@
 
                 <data android:mimeType="image/*" />
             </intent-filter>
+
             <meta-data
                 android:name="android.service.chooser.chooser_target_service"
                 android:value=".services.ContactChooserTargetService" />
@@ -184,13 +186,27 @@
                 android:value="eu.siacs.conversations.ui.SettingsActivity" />
         </activity>
         <activity android:name="com.soundcloud.android.crop.CropImageActivity" />
+
         <service android:name=".services.ExportLogsService" />
-        <service android:name=".services.ContactChooserTargetService"
+        <service
+            android:name=".services.ContactChooserTargetService"
             android:permission="android.permission.BIND_CHOOSER_TARGET_SERVICE">
             <intent-filter>
                 <action android:name="android.service.chooser.ChooserTargetService" />
             </intent-filter>
         </service>
+
+        <provider
+            android:name="android.support.v4.content.FileProvider"
+            android:authorities="eu.siacs.conversations.files"
+            android:exported="false"
+            android:grantUriPermissions="true">
+            <meta-data
+                android:name="android.support.FILE_PROVIDER_PATHS"
+                android:resource="@xml/file_paths" />
+        </provider>
+
+
     </application>
 
 </manifest>

src/main/java/eu/siacs/conversations/services/XmppConnectionService.java

@@ -699,6 +699,7 @@ public class XmppConnectionService extends Service {
 
 	private void directReply(Conversation conversation, String body) {
 		Message message = new Message(conversation,body,conversation.getNextEncryption());
+		message.markUnread();
 		if (message.getEncryption() == Message.ENCRYPTION_PGP) {
 			getPgpEngine().encrypt(message, new UiCallback<Message>() {
 				@Override

src/main/java/eu/siacs/conversations/ui/adapter/MessageAdapter.java

@@ -11,6 +11,7 @@ import android.graphics.drawable.BitmapDrawable;
 import android.graphics.drawable.Drawable;
 import android.net.Uri;
 import android.os.AsyncTask;
+import android.support.v4.content.FileProvider;
 import android.text.Spannable;
 import android.text.SpannableString;
 import android.text.Spanned;
@@ -715,7 +716,9 @@ public class MessageAdapter extends ArrayAdapter<Message> {
 		if (mime == null) {
 			mime = "*/*";
 		}
-		openIntent.setDataAndType(Uri.fromFile(file), mime);
+		Uri uri = FileProvider.getUriForFile(activity,"eu.siacs.conversations.files",file);
+		openIntent.setDataAndType(uri, mime);
+		openIntent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
 		PackageManager manager = activity.getPackageManager();
 		List<ResolveInfo> infos = manager.queryIntentActivities(openIntent, 0);
 		if (infos.size() == 0) {

src/main/res/xml/file_paths.xml

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<paths>
+    <external-path name="external" path="/"/>
+</paths>