Android and Facebook share intent

2018-12-31 14:56发布

I'm developing an Android app and am interested to know how you can update the app user's status from within the app using Android's share intents.

Having looked through Facebook's SDK it appears that this is easy enough to do, however I'm keen to allow the user to do it via the regular Share Intent pop up window? seen here:

pop up

I have tried the usual share intent code, however this no longer appears to work for Facebook.

public void invokeShare(Activity activity, String quote, String credit) {
    Intent shareIntent = new Intent(android.content.Intent.ACTION_SEND);
    shareIntent.setType("text/plain");
    shareIntent.putExtra(android.content.Intent.EXTRA_SUBJECT, activity.getString(R.string.share_subject));
    shareIntent.putExtra(android.content.Intent.EXTRA_TEXT, "Example text");    

    activity.startActivity(Intent.createChooser(shareIntent, activity.getString(R.string.share_title)));
}

UPDATE: Having done more digging, it looks as though it's a bug with Facebook's app that has yet to be resolved! (facebook bug) For the mean time it looks like I'm just going to have to put up with the negative "Sharing doesn't work!!!" reviews. Cheers Facebook :*(

12条回答
浮光初槿花落
2楼-- · 2018-12-31 15:19

In Lollipop (21), you can use Intent.EXTRA_REPLACEMENT_EXTRAS to override the intent for Facebook specifically (and specify a link only)

https://developer.android.com/reference/android/content/Intent.html#EXTRA_REPLACEMENT_EXTRAS

private void doShareLink(String text, String link) {
  Intent shareIntent = new Intent(Intent.ACTION_SEND);
  shareIntent.setType("text/plain");
  Intent chooserIntent = Intent.createChooser(shareIntent, getString(R.string.share_via));

  // for 21+, we can use EXTRA_REPLACEMENT_EXTRAS to support the specific case of Facebook
  // (only supports a link)
  // >=21: facebook=link, other=text+link
  // <=20: all=link
  if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
    shareIntent.putExtra(Intent.EXTRA_TEXT, text + " " + link);
    Bundle facebookBundle = new Bundle();
    facebookBundle.putString(Intent.EXTRA_TEXT, link);
    Bundle replacement = new Bundle();
    replacement.putBundle("com.facebook.katana", facebookBundle);
    chooserIntent.putExtra(Intent.EXTRA_REPLACEMENT_EXTRAS, replacement);
  } else {
    shareIntent.putExtra(Intent.EXTRA_TEXT, link);
  }

  chooserIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
  startActivity(chooserIntent);
}
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像晚风撩人
3楼-- · 2018-12-31 15:30

Apparently Facebook no longer (as of 2014) allows you to customise the sharing screen, no matter if you are just opening sharer.php URL or using Android intents in more specialised ways. See for example these answers:

Anyway, using plain Intents, you can still share a URL, but not any default text with it, as billynomates commented. (Also, if you have no URL to share, just launching Facebook app with empty "Write Post" (i.e. status update) dialog is equally easy; use the code below but leave out EXTRA_TEXT.)

Here's the best solution I've found that does not involve using any Facebook SDKs.

This code opens the official Facebook app directly if it's installed, and otherwise falls back to opening sharer.php in a browser. (Most of the other solutions in this question bring up a huge "Complete action using…" dialog which isn't optimal at all!)

String urlToShare = "https://stackoverflow.com/questions/7545254";
Intent intent = new Intent(Intent.ACTION_SEND);
intent.setType("text/plain");
// intent.putExtra(Intent.EXTRA_SUBJECT, "Foo bar"); // NB: has no effect!
intent.putExtra(Intent.EXTRA_TEXT, urlToShare);

// See if official Facebook app is found
boolean facebookAppFound = false;
List<ResolveInfo> matches = getPackageManager().queryIntentActivities(intent, 0);
for (ResolveInfo info : matches) {
    if (info.activityInfo.packageName.toLowerCase().startsWith("com.facebook.katana")) {
        intent.setPackage(info.activityInfo.packageName);
        facebookAppFound = true;
        break;
    }
}

// As fallback, launch sharer.php in a browser
if (!facebookAppFound) {
    String sharerUrl = "https://www.facebook.com/sharer/sharer.php?u=" + urlToShare;
    intent = new Intent(Intent.ACTION_VIEW, Uri.parse(sharerUrl));
}

startActivity(intent);

(Regarding the com.facebook.katana package name, see MatheusJardimB's comment.)

The result looks like this on my Nexus 7 (Android 4.4) with Facebook app installed:

enter image description here

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后来的你喜欢了谁
4楼-- · 2018-12-31 15:30

Here is something I did which open Facebook App with Link

shareIntent = new Intent(Intent.ACTION_SEND);
shareIntent.setComponent(new ComponentName("com.facebook.katana",
                    "com.facebook.katana.activity.composer.ImplicitShareIntentHandler"));

shareIntent.setType("text/plain");
shareIntent.putExtra(Intent.EXTRA_TEXT,  videoUrl);
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高级女魔头
5楼-- · 2018-12-31 15:36

I found out you can only share either Text or Image, not both using Intents. Below code shares only Image if exists, or only Text if Image does not exits. If you want to share both, you need to use Facebook SDK from here.

If you use other solution instead of below code, don't forget to specify package name com.facebook.lite as well, which is package name of Facebook Lite. I haven't test but com.facebook.orca is package name of Facebook Messenger if you want to target that too.

You can add more methods for sharing with WhatsApp, Twitter ...

public class IntentShareHelper {

    /**
     * <b>Beware,</b> this shares only image if exists, or only text if image does not exits. Can't share both
     */
    public static void shareOnFacebook(AppCompatActivity appCompatActivity, String textBody, Uri fileUri) {
        Intent intent = new Intent(Intent.ACTION_SEND);
        intent.setType("text/plain");
        intent.putExtra(Intent.EXTRA_TEXT,!TextUtils.isEmpty(textBody) ? textBody : "");

        if (fileUri != null) {
            intent.putExtra(Intent.EXTRA_STREAM, fileUri);
            intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
            intent.setType("image/*");
        }

        boolean facebookAppFound = false;
        List<ResolveInfo> matches = appCompatActivity.getPackageManager().queryIntentActivities(intent, PackageManager.MATCH_DEFAULT_ONLY);
        for (ResolveInfo info : matches) {
            if (info.activityInfo.packageName.toLowerCase().startsWith("com.facebook.katana") ||
                info.activityInfo.packageName.toLowerCase().startsWith("com.facebook.lite")) {
                intent.setPackage(info.activityInfo.packageName);
                facebookAppFound = true;
                break;
            }
        }

        if (facebookAppFound) {
            appCompatActivity.startActivity(intent);
        } else {
            showWarningDialog(appCompatActivity, appCompatActivity.getString(R.string.error_activity_not_found));
        }
    }

    public static void shareOnWhatsapp(AppCompatActivity appCompatActivity, String textBody, Uri fileUri){...}

    private static void showWarningDialog(Context context, String message) {
        new AlertDialog.Builder(context)
                .setMessage(message)
                .setNegativeButton(context.getString(R.string.close), new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                        dialog.dismiss();
                    }
                })
                .setCancelable(true)
                .create().show();
    }
}

For getting Uri from File, use below class:

public class UtilityFile {
    public static @Nullable Uri getUriFromFile(Context context, @Nullable File file) {
        if (file == null)
            return null;

        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
            try {
                return FileProvider.getUriForFile(context, "com.my.package.fileprovider", file);
            } catch (Exception e) {
                e.printStackTrace();
                return null;
            }
        } else {
            return Uri.fromFile(file);
        }
    }

    // Returns the URI path to the Bitmap displayed in specified ImageView       
    public static Uri getLocalBitmapUri(Context context, ImageView imageView) {
        Drawable drawable = imageView.getDrawable();
        Bitmap bmp = null;
        if (drawable instanceof BitmapDrawable) {
            bmp = ((BitmapDrawable) imageView.getDrawable()).getBitmap();
        } else {
            return null;
        }
        // Store image to default external storage directory
        Uri bmpUri = null;
        try {
            // Use methods on Context to access package-specific directories on external storage.
            // This way, you don't need to request external read/write permission.
            File file = new File(context.getExternalFilesDir(Environment.DIRECTORY_PICTURES), "share_image_" + System.currentTimeMillis() + ".png");
            FileOutputStream out = new FileOutputStream(file);
            bmp.compress(Bitmap.CompressFormat.PNG, 90, out);
            out.close();

            bmpUri = getUriFromFile(context, file);
        } catch (IOException e) {
            e.printStackTrace();
        }
        return bmpUri;
    }    
}

For writing FileProvider, use this link: https://github.com/codepath/android_guides/wiki/Sharing-Content-with-Intents

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牵手、夕阳
6楼-- · 2018-12-31 15:37

Facebook does not allow to share plain text data with Intent.EXTRA_TEXT but You can share text+link with facebook messanger using this, this works fine for me

            Intent sendIntent = new Intent();
            sendIntent.setAction(Intent.ACTION_SEND);
            sendIntent.putExtra(Intent.EXTRA_TEXT, text+url link);
            sendIntent.setType("text/plain");
            sendIntent.setPackage("com.facebook.orca");
            startActivity(sendIntent);
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怪性笑人.
7楼-- · 2018-12-31 15:38

The usual way

The usual way to create what you're asking for, is to simply do the following:

    Intent intent = new Intent(Intent.ACTION_SEND);
    intent.setType("text/plain");
    intent.putExtra(Intent.EXTRA_TEXT, "The status update text");
    startActivity(Intent.createChooser(intent, "Dialog title text"));

This works without any issues for me.

The alternative way (maybe)

The potential problem with doing this, is that you're also allowing the message to be sent via e-mail, SMS, etc. The following code is something I'm using in an application, that allows the user to send me an e-mail using Gmail. I'm guessing you could try to change it to make it work with Facebook only.

I'm not sure how it responds to any errors or exceptions (I'm guessing that would occur if Facebook is not installed), so you might have to test it a bit.

    try {
        Intent emailIntent = new Intent(android.content.Intent.ACTION_SEND);
        String[] recipients = new String[]{"e-mail address"};
        emailIntent.putExtra(android.content.Intent.EXTRA_EMAIL, recipients);
        emailIntent.putExtra(android.content.Intent.EXTRA_SUBJECT, "E-mail subject");
        emailIntent.putExtra(android.content.Intent.EXTRA_TEXT, "E-mail text");
        emailIntent.setType("plain/text"); // This is incorrect MIME, but Gmail is one of the only apps that responds to it - this might need to be replaced with text/plain for Facebook
        final PackageManager pm = getPackageManager();
        final List<ResolveInfo> matches = pm.queryIntentActivities(emailIntent, 0);
        ResolveInfo best = null;
        for (final ResolveInfo info : matches)
            if (info.activityInfo.packageName.endsWith(".gm") ||
                    info.activityInfo.name.toLowerCase().contains("gmail")) best = info;
                if (best != null)
                    emailIntent.setClassName(best.activityInfo.packageName, best.activityInfo.name);
                startActivity(emailIntent);
    } catch (Exception e) {
        Toast.makeText(this, "Application not found", Toast.LENGTH_SHORT).show();
    }
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