Share feature (#1338)

* added share app feature in About

* added share app feature in About

* a small fix

app/src/main/java/fr/free/nrw/commons/AboutActivity.java

@@ -12,6 +12,9 @@ import android.text.style.UnderlineSpan;
 import android.util.Log;
 import android.support.customtabs.CustomTabsIntent;
 import android.support.v4.content.ContextCompat;
+import android.view.Menu;
+import android.view.MenuInflater;
+import android.view.MenuItem;
 import android.view.View;
 import android.widget.ArrayAdapter;
 import android.widget.LinearLayout;
@@ -121,6 +124,28 @@ public class AboutActivity extends NavigationBaseActivity {
         Utils.handleWebUrl(this,Uri.parse("https://github.com/commons-app/apps-android-commons/wiki/Frequently-Asked-Questions\\"));
     }
 
+    @Override
+    public boolean onCreateOptionsMenu(Menu menu) {
+        MenuInflater inflater = getMenuInflater();
+        inflater.inflate(R.menu.menu_about, menu);
+        return super.onCreateOptionsMenu(menu);
+    }
+
+    @Override
+    public boolean onOptionsItemSelected(MenuItem item) {
+        switch (item.getItemId()) {
+            case R.id.share_app_icon:
+                Intent sendIntent = new Intent();
+                sendIntent.setAction(Intent.ACTION_SEND);
+                sendIntent.putExtra(Intent.EXTRA_TEXT, "http://play.google.com/store/apps/details?id=fr.free.nrw.commons");
+                sendIntent.setType("text/plain");
+                startActivity(Intent.createChooser(sendIntent, "Share app via..."));
+                return true;
+            default:
+                return super.onOptionsItemSelected(item);
+        }
+    }
+
     @OnClick(R.id.about_translate)
     public void launchTranslate(View view) {
         final ArrayAdapter<String> languageAdapter = new ArrayAdapter<String>(AboutActivity.this,

app/src/main/res/drawable/ic_share_black_24dp.xml

@@ -0,0 +1,5 @@
+<vector android:alpha="0.84" android:height="32dp"
+    android:viewportHeight="24.0" android:viewportWidth="24.0"
+    android:width="32dp" xmlns:android="http://schemas.android.com/apk/res/android">
+    <path android:fillColor="#ffffffff" android:pathData="M18,16.08c-0.76,0 -1.44,0.3 -1.96,0.77L8.91,12.7c0.05,-0.23 0.09,-0.46 0.09,-0.7s-0.04,-0.47 -0.09,-0.7l7.05,-4.11c0.54,0.5 1.25,0.81 2.04,0.81 1.66,0 3,-1.34 3,-3s-1.34,-3 -3,-3 -3,1.34 -3,3c0,0.24 0.04,0.47 0.09,0.7L8.04,9.81C7.5,9.31 6.79,9 6,9c-1.66,0 -3,1.34 -3,3s1.34,3 3,3c0.79,0 1.5,-0.31 2.04,-0.81l7.12,4.16c-0.05,0.21 -0.08,0.43 -0.08,0.65 0,1.61 1.31,2.92 2.92,2.92 1.61,0 2.92,-1.31 2.92,-2.92s-1.31,-2.92 -2.92,-2.92z"/>
+</vector>

app/src/main/res/layout/toolbar.xml

@@ -9,4 +9,5 @@
     android:minHeight="?attr/actionBarSize"
     app:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"
     android:background="?attr/colorPrimaryDark">
+
 </android.support.v7.widget.Toolbar>

app/src/main/res/menu/menu_about.xml

@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="utf-8"?>
+<menu xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    tools:context=".MainActivity"
+    >
+
+    <item
+        android:id="@+id/share_app_icon"
+        android:title="@string/refresh_button"
+        android:icon="@drawable/ic_share_black_24dp"
+        android:orderInCategory="1"
+        app:showAsAction="ifRoom"
+        />
+</menu>