Mariovc · June 9, 2023 17:24 · Jan 7, 2016 · Dec 31, 2015
diff --git a/ShareUtils.java b/ShareUtils.java
@@ -37,7 +37,7 @@ public static void shareFacebook(Activity activity, String text, String url) {
         PackageManager pm = activity.getPackageManager();
         List<ResolveInfo> activityList = pm.queryIntentActivities(shareIntent, 0);
         for (final ResolveInfo app : activityList) {
-            if ((app.activityInfo.name).contains("facebook")) {
+            if ((app.activityInfo.packageName).contains("com.facebook.katana")) {
                 final ActivityInfo activityInfo = app.activityInfo;
                 final ComponentName name = new ComponentName(activityInfo.applicationInfo.packageName, activityInfo.name);
                 shareIntent.addCategory(Intent.CATEGORY_LAUNCHER);

diff --git a/ShareUtils.java b/ShareUtils.java
@@ -0,0 +1,134 @@
+import android.app.Activity;
+import android.content.ComponentName;
+import android.content.Intent;
+import android.content.pm.ActivityInfo;
+import android.content.pm.PackageInfo;
+import android.content.pm.PackageManager;
+import android.content.pm.ResolveInfo;
+import android.net.Uri;
+import android.text.TextUtils;
+import android.util.Log;
+import android.widget.Toast;
+
+import java.io.UnsupportedEncodingException;
+import java.net.URLEncoder;
+import java.util.List;
+
+/**
+ * Author: Mario Velasco Casquero
+ * Date: 02/12/2015
+ */
+public class ShareUtils {
+
+    /**
+     * Share on Facebook. Using Facebook app if installed or web link otherwise.
+     *
+     * @param activity activity which launches the intent
+     * @param text     not used/allowed on Facebook
+     * @param url      url to share
+     */
+    public static void shareFacebook(Activity activity, String text, String url) {
+        boolean facebookAppFound = false;
+        Intent shareIntent = new Intent(android.content.Intent.ACTION_SEND);
+        shareIntent.setType("text/plain");
+        shareIntent.putExtra(Intent.EXTRA_TEXT, url);
+        shareIntent.putExtra(Intent.EXTRA_STREAM, Uri.parse(url));
+
+        PackageManager pm = activity.getPackageManager();
+        List<ResolveInfo> activityList = pm.queryIntentActivities(shareIntent, 0);
+        for (final ResolveInfo app : activityList) {
+            if ((app.activityInfo.name).contains("facebook")) {
+                final ActivityInfo activityInfo = app.activityInfo;
+                final ComponentName name = new ComponentName(activityInfo.applicationInfo.packageName, activityInfo.name);
+                shareIntent.addCategory(Intent.CATEGORY_LAUNCHER);
+                shareIntent.setComponent(name);
+                facebookAppFound = true;
+                break;
+            }
+        }
+        if (!facebookAppFound) {
+            String sharerUrl = "https://www.facebook.com/sharer/sharer.php?u=" + url;
+            shareIntent = new Intent(Intent.ACTION_VIEW, Uri.parse(sharerUrl));
+        }
+        activity.startActivity(shareIntent);
+    }
+
+    /**
+     * Share on Twitter. Using Twitter app if installed or web link otherwise.
+     *
+     * @param activity activity which launches the intent
+     * @param text     text to share
+     * @param url      url to share
+     * @param via      twitter username without '@' who shares
+     * @param hashtags hashtags for tweet without '#' and separated by ','
+     */
+    public static void shareTwitter(Activity activity, String text, String url, String via, String hashtags) {
+        StringBuilder tweetUrl = new StringBuilder("https://twitter.com/intent/tweet?text=");
+        tweetUrl.append(TextUtils.isEmpty(text) ? urlEncode(" ") : urlEncode(text));
+        if (!TextUtils.isEmpty(url)) {
+            tweetUrl.append("&url=");
+            tweetUrl.append(urlEncode(url));
+        }
+        if (!TextUtils.isEmpty(via)) {
+            tweetUrl.append("&via=");
+            tweetUrl.append(urlEncode(via));
+        }
+        if (!TextUtils.isEmpty(hashtags)) {
+            tweetUrl.append("&hastags=");
+            tweetUrl.append(urlEncode(hashtags));
+        }
+        Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse(tweetUrl.toString()));
+        List<ResolveInfo> matches = activity.getPackageManager().queryIntentActivities(intent, 0);
+        for (ResolveInfo info : matches) {
+            if (info.activityInfo.packageName.toLowerCase().startsWith("com.twitter")) {
+                intent.setPackage(info.activityInfo.packageName);
+            }
+        }
+        activity.startActivity(intent);
+    }
+
+    /**
+     * Share on Whatsapp (if installed)
+     *
+     * @param activity activity which launches the intent
+     * @param text     text to share
+     * @param url      url to share
+     */
+    public static void shareWhatsapp(Activity activity, String text, String url) {
+        PackageManager pm = activity.getPackageManager();
+        try {
+
+            Intent waIntent = new Intent(Intent.ACTION_SEND);
+            waIntent.setType("text/plain");
+
+            PackageInfo info = pm.getPackageInfo("com.whatsapp", PackageManager.GET_META_DATA);
+            //Check if package exists or not. If not then code
+            //in catch block will be called
+            waIntent.setPackage("com.whatsapp");
+
+            waIntent.putExtra(Intent.EXTRA_TEXT, text + " " + url);
+            activity.startActivity(Intent
+                    .createChooser(waIntent, activity.getString(R.string.share_intent_title)));
+
+        } catch (PackageManager.NameNotFoundException e) {
+            Toast.makeText(activity, activity.getString(R.string.share_whatsapp_not_instaled),
+                    Toast.LENGTH_SHORT).show();
+        }
+    }
+
+
+    /**
+     * Convert to UTF-8 text to put it on url format
+     *
+     * @param s text to be converted
+     * @return text on UTF-8 format
+     */
+    public static String urlEncode(String s) {
+        try {
+            return URLEncoder.encode(s, "UTF-8");
+        } catch (UnsupportedEncodingException e) {
+            Log.wtf("wtf", "UTF-8 should always be supported", e);
+            throw new RuntimeException("URLEncoder.encode() failed for " + s);
+        }
+    }
+}
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