Fix no closing after setting wallpaper and add Play Store badge

README.md

@@ -1,5 +1,7 @@
 # Set as wallpaper
 
+![<img alt="Get it on Google Play" src="https://play.google.com/intl/en_us/badges/static/images/badges/en_badge_web_generic.png" height="50"/>](https://play.google.com/store/apps/details?id=net.crystalyx.setaswallpaper)
+
 [![Build Status](https://ci.crystalyx.net/api/badges/Xefir/SetAsWallpaper/status.svg)](https://ci.crystalyx.net/Xefir/SetAsWallpaper)
 
 Provide a useful shortcut to set an image to your Android's wallpaper launcher and lock screen through the "Share" functionality.

app/src/main/java/net/crystalyx/setaswallpaper/SetWallpaperActivity.java

@@ -17,10 +17,13 @@ import java.util.concurrent.Executors;
 
 public class SetWallpaperActivity extends Activity {
 
+    private boolean toBeFinished;
+
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
 
+        toBeFinished = false;
         Intent intent = getIntent();
         String type = intent.getType();
 
@@ -29,7 +32,26 @@ public class SetWallpaperActivity extends Activity {
                 handleUrl(intent.getStringExtra(Intent.EXTRA_TEXT));
             } else if (type.startsWith("image/")) {
                 launchWallpaperActivity(intent.getParcelableExtra(Intent.EXTRA_STREAM), type);
+            } else {
+                toBeFinished = true;
             }
+        } else {
+            toBeFinished = true;
+        }
+    }
+
+    @Override
+    protected void onPause() {
+        super.onPause();
+        toBeFinished = true;
+    }
+
+    @Override
+    protected void onResume() {
+        super.onResume();
+
+        if (!toBeFinished) {
+            finish();
         }
     }