add a button to open the Camera, closes #4

- added it only to the main screen with the directories, as adding it in the specific album might be confusing. People could think that the photo will be saved in that album

app/src/main/java/com/simplemobiletools/gallery/activities/MainActivity.java

@@ -90,17 +90,23 @@ public class MainActivity extends AppCompatActivity
         if (mIsThirdPartyIntent)
             return false;
 
-        getMenuInflater().inflate(R.menu.menu, menu);
+        getMenuInflater().inflate(R.menu.menu_main, menu);
         return true;
     }
 
     @Override
     public boolean onOptionsItemSelected(MenuItem item) {
         switch (item.getItemId()) {
-            case R.id.about:
+            case R.id.camera: {
+                final Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
+                startActivity(intent);
+                return true;
+            }
+            case R.id.about: {
                 final Intent intent = new Intent(getApplicationContext(), AboutActivity.class);
                 startActivity(intent);
                 return true;
+            }
             default:
                 return super.onOptionsItemSelected(item);
         }
@@ -473,7 +479,7 @@ public class MainActivity extends AppCompatActivity
     @Override
     public boolean onCreateActionMode(ActionMode mode, Menu menu) {
         final MenuInflater inflater = mode.getMenuInflater();
-        inflater.inflate(R.menu.directories_menu, menu);
+        inflater.inflate(R.menu.directories_cab, menu);
         mActionMode = mode;
         return true;
     }

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

@@ -1,6 +1,11 @@
 <?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">
+    <item
+        android:id="@+id/camera"
+        android:icon="@mipmap/camera"
+        android:title="@string/open_camera"
+        app:showAsAction="ifRoom"/>
     <item
         android:id="@+id/about"
         android:title="@string/about"

app/src/main/res/values/strings.xml

@@ -18,6 +18,7 @@
     <string name="extension">Extension</string>
     <string name="file_deleted">File deleted</string>
     <string name="setting_wallpaper">Setting wallpaper</string>
+    <string name="open_camera">Open camera</string>
 
     <plurals name="folders_deleted">
         <item quantity="one">1 folder deleted</item>