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Launch Telegram app from Android application with message and recipient – Telegram API

I need to open Telegram from my own Android App prepopulating both the message and recipient (and not having to choose betwenn Chrome or Telegram),
I achieved the first one with this code:

        final String appName = "org.telegram.messenger";
        Intent tIntent = new Intent(Intent.ACTION_SEND);
        tIntent.setType("text/plain");
        tIntent.setPackage(appName);
        tIntent.putExtra(Intent.EXTRA_TEXT, msg);
        mUIActivity.startActivity(tIntent);

And the second one with this code:

        Intent tIntent = new Intent(Intent.ACTION_VIEW);
        tIntent.setData(Uri.parse("http://telegram.me/USERID"));
        startActivity(tIntent);

(I removed all checks like isTelegramInstalled for simplicity)

I tried to mix the two methods
adding some intent extra such as msg we get to this code that will open Telegram, in one click, with pre-populated message and recipient:

        Intent telegramIntent = new Intent(Intent.ACTION_SEND);
        tIntent.setDataAndType(Uri.parse("http://telegram.me/username"), "text/plain");
        final String appName = "org.telegram.messenger";
        tIntent.setPackage(appName);
        tIntent.putExtra(Intent.EXTRA_TEXT, "hello");
        startActivity(tIntent);

…aaand it didn’t work!

android.content.ActivityNotFoundException: No Activity found to handle Intent { act=android.intent.action.SEND dat=http://telegram.me/... flg=0x1 pkg=org.telegram.messenger clip={null T:hello} (has extras) }

Any idea how to achieve this?

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2

Answers


  1. 0

    In your case 

    android.content.ActivityNotFoundException: No Activity found to handle Intent { act=android.intent.action.SEND dat=http://telegram.me/... flg=0x1 pkg=org.telegram.messenger clip={null T:hello} (has extras) }

    Telegram chat activity class has a different name and you pass other activity name.

    Find which class use telegram for chat activity and pass it on set package method

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  2. 0

    Please try below function for open Telegram

    public static void openTelegram(Activity activity, String userName) {
    Intent general = new Intent(Intent.ACTION_VIEW, Uri.parse("https://t.com/" + userName));
    HashSet<String> generalResolvers = new HashSet<>();
    List<ResolveInfo> generalResolveInfo = activity.getPackageManager().queryIntentActivities(general, 0);
    for (ResolveInfo info : generalResolveInfo) {
        if (info.activityInfo.packageName != null) {
            generalResolvers.add(info.activityInfo.packageName);
        }
    }

    Intent telegram = new Intent(Intent.ACTION_VIEW, Uri.parse("https://t.me/" + userName));
    int goodResolver = 0;
    // gets the list of intents that can be loaded.
    List<ResolveInfo> resInfo = activity.getPackageManager().queryIntentActivities(telegram, 0);
    if (!resInfo.isEmpty()) {
        for (ResolveInfo info : resInfo) {
            if (info.activityInfo.packageName != null && !generalResolvers.contains(info.activityInfo.packageName)) {
                goodResolver++;
                telegram.setPackage(info.activityInfo.packageName);
            }
        }
    }
    //TODO: if there are several good resolvers create custom chooser
    if (goodResolver != 1) {
        telegram.setPackage(null);
    }
    if (telegram.resolveActivity(activity.getPackageManager()) != null) {
        activity.startActivity(telegram);
    }
}

    I hope this can help You!

    Thank You.

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