Develop Reference

Open external links (Whatsapp - tel) in andriod webview

Dears
I have Webview app and I can't open any WhatsApp links or telephone
I use the following code
#Override
public void menuItemClicked(Action action, MenuItem item) {
if (WebToAppWebClient.urlShouldOpenExternally(action.url)){
//Load url outside WebView
try {
startActivity(
new Intent(Intent.ACTION_VIEW, Uri.parse(action.url)));
} catch(ActivityNotFoundException e) {
if (action.url.startsWith("intent://") || (action.url.startsWith("whatsapp:")
|| (action.url.startsWith("tel:")))){
startActivity(
new Intent(Intent.ACTION_VIEW, Uri.parse(action.url.replace("intent://", "http://"))));
new Intent(Intent.ACTION_VIEW, Uri.parse(action.url.replace("whatsapp:", "http://")));
new Intent(Intent.ACTION_VIEW, Uri.parse(action.url.replace("tel:", "http://")));
} else {
Toast.makeText(this, getResources().getString(R.string.no_app_message), Toast.LENGTH_LONG).show();
}
}```

Open User Page in Tiktok app on Android with Intent

Is there something similar to the Soundcloud Uri ("soundcloud://users:" + "soundcloud_username") that allows an app user to open the Tiktok app and go to another user's page, like the Soundcloud code below?
Soundcloud code reference: Force a Soundcloud track to open in Soundcloud app on Android
try {
Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse("soundcloud://users:" + "soundcloud_username"));
startActivity(intent);
} catch (ActivityNotFoundException e) {
startActivity(new Intent(Intent.ACTION_VIEW,
Uri.parse("http://soundcloud.com/"+string_soundcloudLink_profile)));
}

private fun openTikTokProfile() {
val uri: Uri = Uri.parse("https://www.tiktok.com/#${username}")
val intent = Intent(Intent.ACTION_VIEW, uri)
intent.setPackage("com.zhiliaoapp.musically")
if (intent.resolveActivity(requireActivity().packageManager) != null) {
startActivity(intent)
}
}

Hey I found the solution But its in xamarin.android
private void urlclick(object sender, EventArgs e)
{
PackageManager manager = PackageManager;
var U =Android.Net.Uri.Parse("http://vm.tiktok.com/tiktokulr");///Add URL of you tiktok account
Intent i;
Intent icheck;
try
{
i = new Intent(Intent.ActionView, U);
icheck = manager.GetLaunchIntentForPackage("com.zhiliaoapp.musically");
if (icheck == null)
{
Toast.MakeText(this, "please install tiktok in your phone", ToastLength.Short).Show();
throw new PackageManager.NameNotFoundException();
}
else
{
StartActivity(i);
}
}
catch (PackageManager.NameNotFoundException exp)
{
}

How can I launch Instagram app on button click Android Studio

I just want to open Instagram application on button click (if installed) on minimum API 16.
What I am trying is:
Intent likeIng = new Intent(Intent.ACTION_VIEW);
likeIng.setPackage("com.instagram.android");
try {
startActivity(likeIng);
} catch (ActivityNotFoundException e) {
Toast.makeText(this,"Instagram Not Installed!",Toast.LENGTH_LONG).show();
}
But when running on a phone where Instagram is installed, it's not launching it.

pass this this Uri to your intent.
Uri uri = Uri.parse("http://instagram.com/_u/YOUR_USERNAME");
Intent i= new Intent(Intent.ACTION_VIEW,uri);
i.setPackage("com.instagram.android");
try {
startActivity(i);
} catch (ActivityNotFoundException e) {
startActivity(new Intent(Intent.ACTION_VIEW,
Uri.parse("http://instagram.com/xxx")));
}

Use PackageManager.getLaunchIntentForPackage(String packageName)

use this. I already used this.
Intent i = getPackageManager().getLaunchIntentForPackage("com.instagram.android");
startActivity(i);

Try this method:
private void callInstagram() {
String apppackage = "com.instagram.android";
Context cx=this;
try {
Intent i = cx.getPackageManager().getLaunchIntentForPackage(apppackage);
cx.startActivity(i);
} catch (Exception e) {
Toast.makeText(this, "Sorry, Instagram Apps Not Found", Toast.LENGTH_LONG).show();
}
}

how to open android application if installed and go to android market if not install

I would like to make android button and able to launch other application if already installed and go to android market if not yet installed.
How to do this?
Regards,
Virak

use below code
String packageName = "app_package_name";
Intent intent = getPackageManager().getLaunchIntentForPackage(packageName);
if(intent == null) {
intent = new Intent(Intent.ACTION_VIEW, Uri.parse("market://details?id="+packageName));
}
startActivity(intent);

Try with this -
Just create one Button in your layout. And, onClick of that button check below condition -
Button calculateButton = (Button) findViewById(R.id.buttonCalculate);
calculateButton.setOnClickListener(new View.OnClickListener() {
public void onClick(View v)
{
if(check() == true)
{
PackageManager pack = this.getPackageManager();
Intent app = pack.getLaunchIntentForPackage(packagename);
startActivity(app);
}else
{
Intent marketIntent = new Intent(Intent.ACTION_VIEW);
marketIntent.setData(Uri.parse("market://details?id=packagename"));
startActivity(marketIntent);
}
}
});
}
public boolean check()
{
try{
ApplicationInfo info = getPackageManager().getApplicationInfo("packagename", 0 );
return true;
} catch( PackageManager.NameNotFoundException e ){
return false;
}
}

Try to call the Application activity from your code using the, other application package name and activity name or by the Intent filters which is belongs to that other application you need to call...
Intent newIntent;
newIntent = new Intent("other application Package name","class name");
startActivity(newIntent);
Check whether it is launched or not.
//If it is launched, don't do anything
//If it isn't, then navigate the UI to Google Play Intent.
Intent googlePlay = new Intent(Intent.ACTION_VIEW);
googlePlay.setData(Uri.parse("market://details?id="+"other application package name"));
startActivity(googlePlay);

inside onclick
#Override
public void onClick(View view){
try{
startActivity(getPackageManager().getLaunchIntentForPackage("applicationId"));
} catch (PackageManager.NameNotFoundException e) {
startActivity(new Intent(Intent.ACTION_VIEW).setData(Uri.parse("https://play.google.com/store/apps/details?id=" + "applicationId")));
}
}

Open Facebook page from Android app?

from my Android app, I would like to open a link to a Facebook profile in the official Facebook app (if the app is installed, of course). For iPhone, there exists the fb:// URL scheme, but trying the same thing on my Android device throws an ActivityNotFoundException.
Is there a chance to open a Facebook profile in the official Facebook app from code?

This works on the latest version:
Go to https://graph.facebook.com/<user_name_here> (https://graph.facebook.com/fsintents for instance)
Copy your id
Use this method:
public static Intent getOpenFacebookIntent(Context context) {
try {
context.getPackageManager().getPackageInfo("com.facebook.katana", 0);
return new Intent(Intent.ACTION_VIEW, Uri.parse("fb://page/<id_here>"));
} catch (Exception e) {
return new Intent(Intent.ACTION_VIEW, Uri.parse("https://www.facebook.com/<user_name_here>"));
}
}
This will open the Facebook app if the user has it installed. Otherwise, it will open Facebook in the browser.
EDIT: since version 11.0.0.11.23 (3002850) Facebook App do not support this way anymore, there's another way, check the response below from Jared Rummler.

In Facebook version 11.0.0.11.23 (3002850) fb://profile/ and fb://page/ no longer work. I decompiled the Facebook app and found that you can use fb://facewebmodal/f?href=[YOUR_FACEBOOK_PAGE]. Here is the method I have been using in production:
/**
* <p>Intent to open the official Facebook app. If the Facebook app is not installed then the
* default web browser will be used.</p>
*
* <p>Example usage:</p>
*
* {#code newFacebookIntent(ctx.getPackageManager(), "https://www.facebook.com/JRummyApps");}
*
* #param pm
* The {#link PackageManager}. You can find this class through {#link
* Context#getPackageManager()}.
* #param url
* The full URL to the Facebook page or profile.
* #return An intent that will open the Facebook page/profile.
*/
public static Intent newFacebookIntent(PackageManager pm, String url) {
Uri uri = Uri.parse(url);
try {
ApplicationInfo applicationInfo = pm.getApplicationInfo("com.facebook.katana", 0);
if (applicationInfo.enabled) {
// http://stackoverflow.com/a/24547437/1048340
uri = Uri.parse("fb://facewebmodal/f?href=" + url);
}
} catch (PackageManager.NameNotFoundException ignored) {
}
return new Intent(Intent.ACTION_VIEW, uri);
}

Is this not easier?
For example within an onClickListener?
try {
Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse("fb://profile/426253597411506"));
startActivity(intent);
} catch(Exception e) {
startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse("http://www.facebook.com/appetizerandroid")));
}
PS. Get your id (the large number) from http://graph.facebook.com/[userName]

For Facebook page:
try {
intent = new Intent(Intent.ACTION_VIEW, Uri.parse("fb://page/" + pageId));
} catch (Exception e) {
intent = new Intent(Intent.ACTION_VIEW, Uri.parse("https://www.facebook.com/" + pageId));
}
For Facebook profile:
try {
intent = new Intent(Intent.ACTION_VIEW, Uri.parse("fb://profile/" + profileId));
} catch (Exception e) {
intent = new Intent(Intent.ACTION_VIEW, Uri.parse("https://www.facebook.com/" + profileId));
}
...because none of the answers points out the difference
Both tested with Facebook v.27.0.0.24.15 and Android 5.0.1 on Nexus 4

Here's the way to do it in 2016. It works great, and is very simple to use.
I discovered this after looking into how emails sent by Facebook opened the Facebook app.
// e.g. if your URL is https://www.facebook.com/EXAMPLE_PAGE, you should
// put EXAMPLE_PAGE at the end of this URL, after the ?
String YourPageURL = "https://www.facebook.com/n/?YOUR_PAGE_NAME";
Intent browserIntent = new Intent(Intent.ACTION_VIEW, Uri.parse(YourPageURL));
startActivity(browserIntent);

this is the simplest code for doing this
public final void launchFacebook() {
final String urlFb = "fb://page/"+yourpageid;
Intent intent = new Intent(Intent.ACTION_VIEW);
intent.setData(Uri.parse(urlFb));
// If a Facebook app is installed, use it. Otherwise, launch
// a browser
final PackageManager packageManager = getPackageManager();
List<ResolveInfo> list =
packageManager.queryIntentActivities(intent,
PackageManager.MATCH_DEFAULT_ONLY);
if (list.size() == 0) {
final String urlBrowser = "https://www.facebook.com/"+pageid;
intent.setData(Uri.parse(urlBrowser));
}
startActivity(intent);
}

A more reusable approach.
This is a functionality we generally use in most of our apps. Hence here is a reusable piece of code to achieve this.
(Similar to other answers in terms for facts. Posting it here just to simplify and make the implementation reusable)
"fb://page/ does not work with newer versions of the FB app. You should use fb://facewebmodal/f?href= for newer versions. (Like mentioned in another answer here)
This is a full fledged working code currently live in one of my apps:
public static String FACEBOOK_URL = "https://www.facebook.com/YourPageName";
public static String FACEBOOK_PAGE_ID = "YourPageName";
//method to get the right URL to use in the intent
public String getFacebookPageURL(Context context) {
PackageManager packageManager = context.getPackageManager();
try {
int versionCode = packageManager.getPackageInfo("com.facebook.katana", 0).versionCode;
if (versionCode >= 3002850) { //newer versions of fb app
return "fb://facewebmodal/f?href=" + FACEBOOK_URL;
} else { //older versions of fb app
return "fb://page/" + FACEBOOK_PAGE_ID;
}
} catch (PackageManager.NameNotFoundException e) {
return FACEBOOK_URL; //normal web url
}
}
This method will return the correct url for app if installed or web url if app is not installed.
Then start an intent as follows:
Intent facebookIntent = new Intent(Intent.ACTION_VIEW);
String facebookUrl = getFacebookPageURL(this);
facebookIntent.setData(Uri.parse(facebookUrl));
startActivity(facebookIntent);
That's all you need.

To do this we need the "Facebook page id", you can get it :
from the page go to "About".
go to "More Info" section.
To opening facebook app on specified profile page,
you can do this:
String facebookId = "fb://page/<Facebook Page ID>";
startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse(facebookId)));
Or you can validate when the facebook app is not installed, then open the facebook web page.
String facebookId = "fb://page/<Facebook Page ID>";
String urlPage = "http://www.facebook.com/mypage";
try {
startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse(facebookId )));
} catch (Exception e) {
Log.e(TAG, "Application not intalled.");
//Open url web page.
startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse(urlPage)));
}

This has been reverse-engineered by Pierre87 on the FrAndroid forum, but I can't find anywhere official that describes it, so it's has to be treated as undocumented and liable to stop working at any moment:
Intent intent = new Intent(Intent.ACTION_VIEW);
intent.setClassName("com.facebook.katana", "com.facebook.katana.ProfileTabHostActivity");
intent.putExtra("extra_user_id", "123456789l");
this.startActivity(intent);

try this code:
String facebookUrl = "https://www.facebook.com/<id_here>";
try {
int versionCode = getPackageManager().getPackageInfo("com.facebook.katana", 0).versionCode;
if (versionCode >= 3002850) {
Uri uri = Uri.parse("fb://facewebmodal/f?href=" + facebookUrl);
startActivity(new Intent(Intent.ACTION_VIEW, uri));
} else {
Uri uri = Uri.parse("fb://page/<id_here>");
startActivity(new Intent(Intent.ACTION_VIEW, uri));
}
} catch (PackageManager.NameNotFoundException e) {
startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse(facebookUrl)));
}

As of March 2020 this works perfectly.
private void openFacebookPage(String pageId) {
String pageUrl = "https://www.facebook.com/" + pageId;
try {
ApplicationInfo applicationInfo = getPackageManager().getApplicationInfo("com.facebook.katana", 0);
if (applicationInfo.enabled) {
int versionCode = getPackageManager().getPackageInfo("com.facebook.katana", 0).versionCode;
String url;
if (versionCode >= 3002850) {
url = "fb://facewebmodal/f?href=" + pageUrl;
} else {
url = "fb://page/" + pageId;
}
startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse(url)));
} else {
throw new Exception("Facebook is disabled");
}
} catch (Exception e) {
startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse(pageUrl)));
}
}

After much testing I have found one of the most effective solutions:
private void openFacebookApp() {
String facebookUrl = "www.facebook.com/XXXXXXXXXX";
String facebookID = "XXXXXXXXX";
try {
int versionCode = getActivity().getApplicationContext().getPackageManager().getPackageInfo("com.facebook.katana", 0).versionCode;
if(!facebookID.isEmpty()) {
// open the Facebook app using facebookID (fb://profile/facebookID or fb://page/facebookID)
Uri uri = Uri.parse("fb://page/" + facebookID);
startActivity(new Intent(Intent.ACTION_VIEW, uri));
} else if (versionCode >= 3002850 && !facebookUrl.isEmpty()) {
// open Facebook app using facebook url
Uri uri = Uri.parse("fb://facewebmodal/f?href=" + facebookUrl);
startActivity(new Intent(Intent.ACTION_VIEW, uri));
} else {
// Facebook is not installed. Open the browser
Uri uri = Uri.parse(facebookUrl);
startActivity(new Intent(Intent.ACTION_VIEW, uri));
}
} catch (PackageManager.NameNotFoundException e) {
// Facebook is not installed. Open the browser
Uri uri = Uri.parse(facebookUrl);
startActivity(new Intent(Intent.ACTION_VIEW, uri));
}
}

My answer builds on top of the widely-accepted answer from joaomgcd.
If the user has Facebook installed but disabled (for example by using App Quarantine), this method will not work. The intent for the Twitter app will be selected but it will not be able to process it as it is disabled.
Instead of:
context.getPackageManager().getPackageInfo("com.facebook.katana", 0);
return new Intent(Intent.ACTION_VIEW, Uri.parse("fb://profile/620681997952698"));
You can use the following to decide what to do:
PackageInfo info = context.getPackageManager().getPackageInfo("com.facebook.katana", 0);
if(info.applicationInfo.enabled)
return new Intent(Intent.ACTION_VIEW, Uri.parse("fb://profile/620681997952698"));
else
return new Intent(Intent.ACTION_VIEW, Uri.parse("https://www.facebook.com/620681997952698"));

Best answer I have found, it's working great.
Just go to your page on Facebook in the browser, right click, and click on "View source code", then find the page_id attribute: you have to use page_id here in this line after the last back-slash:
fb://page/pageID
For example:
Intent facebookAppIntent;
try {
facebookAppIntent = new Intent(Intent.ACTION_VIEW, Uri.parse("fb://page/1883727135173361"));
startActivity(facebookAppIntent);
} catch (ActivityNotFoundException e) {
facebookAppIntent = new Intent(Intent.ACTION_VIEW, Uri.parse("http://facebook.com/CryOut-RadioTv-1883727135173361"));
startActivity(facebookAppIntent);
}

You can check it for all Facebook Apps that any of Facebook apps are installed or not .
For supporting OS level 11 we need to add this in AndrodiManifest.xml to avoid package name not found exception -
<manifest ...
<queries>
<package android:name="com.facebook.katana" />
<package android:name="com.facebook.lite" />
<package android:name="com.facebook.android" />
<package android:name="com.example.facebook" />
</queries>
<application .....
Then add this method to you code -
public static String isFacebookAppInstalled(Context context){
if(context!=null) {
PackageManager pm=context.getPackageManager();
ApplicationInfo applicationInfo;
//First check that if the main app of facebook is installed or not
try {
applicationInfo = pm.getApplicationInfo("com.facebook.katana", 0);
return applicationInfo.enabled?"com.facebook.katana":"";
} catch (Exception ignored) {
}
//Then check that if the facebook lite is installed or not
try {
applicationInfo = pm.getApplicationInfo("com.facebook.lite", 0);
return applicationInfo.enabled?"com.facebook.lite":"";
} catch (Exception ignored) {
}
//Then check the other facebook app using different package name is installed or not
try {
applicationInfo = pm.getApplicationInfo("com.facebook.android", 0);
return applicationInfo.enabled?"com.facebook.android":"";
} catch (Exception ignored) {
}
try {
applicationInfo = pm.getApplicationInfo("com.example.facebook", 0);
return applicationInfo.enabled?"com.example.facebook":"";
} catch (Exception ignored) {
}
}
return "";
}
And then launch the app -
if (!TextUtils.isEmpty(isFacebookAppInstalled(context))) {
/* Facebook App is installed,So launch it.
It will return you installed facebook app's package
name which will be useful to launch the app */
Uri uri = Uri.parse("fb://facewebmodal/f?href=" + yourURL);
Intent intent = context.getPackageManager().getLaunchIntentForPackage(isFacebookAppInstalled(context);
if (intent != null) {
intent.setAction(Intent.ACTION_VIEW);
intent.setData(uri);
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
context.startActivity(intent);
}
else {
Intent intentForOtherApp = new Intent(Intent.ACTION_VIEW, uri);
context.startActivity(intentForOtherApp);
}
}

Intent intent = null;
try {
getPackageManager().getPackageInfo("com.facebook.katana", 0);
String url = "https://www.facebook.com/"+idFacebook;
intent = new Intent(Intent.ACTION_VIEW, Uri.parse("fb://facewebmodal/f?href="+url));
} catch (Exception e) {
// no Facebook app, revert to browser
String url = "https://facebook.com/"+idFacebook;
intent = new Intent(Intent.ACTION_VIEW);
intent .setData(Uri.parse(url));
}
this.startActivity(intent);

To launch facebook page from your app, let urlString = "fb://page/your_fb_page_id"
To launch facebook messenger let urlString = "fb-messenger://user/your_fb_page_id"
FB page id is usually numeric. To get it, goto Find My FB ID input your profile url, something like www.facebook.com/edgedevstudio then click "Find Numberic ID".
Voila, you now have your fb numeric id. replace "your_fb_page_id" with the generated Numeric ID
val intent = Intent(Intent.ACTION_VIEW, Uri.parse(urlString))
if (intent.resolveActivity(packageManager) != null) //check if app is available to handle the implicit intent
startActivity(intent)

As of July 2018 this works perfectly with or without the Facebook app on all the devices.
private void goToFacebook() {
try {
String facebookUrl = getFacebookPageURL();
Intent facebookIntent = new Intent(Intent.ACTION_VIEW);
facebookIntent.setData(Uri.parse(facebookUrl));
startActivity(facebookIntent);
} catch (Exception e) {
e.printStackTrace();
}
}
private String getFacebookPageURL() {
String FACEBOOK_URL = "https://www.facebook.com/Yourpage-1548219792xxxxxx/";
String facebookurl = null;
try {
PackageManager packageManager = getPackageManager();
if (packageManager != null) {
Intent activated = packageManager.getLaunchIntentForPackage("com.facebook.katana");
if (activated != null) {
int versionCode = packageManager.getPackageInfo("com.facebook.katana", 0).versionCode;
if (versionCode >= 3002850) {
facebookurl = "fb://page/1548219792xxxxxx";
}
} else {
facebookurl = FACEBOOK_URL;
}
} else {
facebookurl = FACEBOOK_URL;
}
} catch (Exception e) {
facebookurl = FACEBOOK_URL;
}
return facebookurl;
}

Check out my code for opening Facebook specific Page:
//ID initialization
ImageView facebook = findViewById(R.id.facebookID);
facebook.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
String facebookId = "fb://page/327031464582675";
String urlPage = "http://www.facebook.com/MDSaziburRahmanBD";
try {
startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse(facebookId)));
}catch (Exception e){
startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse(urlPage)));
}
}
});

I have created a method to open facebook page into facebook app, if app is not existing then opening in chrome
String socailLink="https://www.facebook.com/kfc";
Intent intent = new Intent(Intent.ACTION_VIEW);
String facebookUrl = Utils.getFacebookUrl(getActivity(), socailLink);
if (facebookUrl == null || facebookUrl.length() == 0) {
Log.d("facebook Url", " is coming as " + facebookUrl);
return;
}
intent.setData(Uri.parse(facebookUrl));
startActivity(intent);
Utils.class add these method
public static String getFacebookUrl(FragmentActivity activity, String facebook_url) {
if (activity == null || activity.isFinishing()) return null;
PackageManager packageManager = activity.getPackageManager();
try {
int versionCode = packageManager.getPackageInfo("com.facebook.katana", 0).versionCode;
if (versionCode >= 3002850) { //newer versions of fb app
Log.d("facebook api", "new");
return "fb://facewebmodal/f?href=" + facebook_url;
} else { //older versions of fb app
Log.d("facebook api", "old");
return "fb://page/" + splitUrl(activity, facebook_url);
}
} catch (PackageManager.NameNotFoundException e) {
Log.d("facebook api", "exception");
return facebook_url; //normal web url
}
}
and this
/***
* this method used to get the facebook profile name only , this method split domain into two part index 0 contains https://www.facebook.com and index 1 contains after / part
* #param context contain context
* #param url contains facebook url like https://www.facebook.com/kfc
* #return if it successfully split then return "kfc"
*
* if exception in splitting then return "https://www.facebook.com/kfc"
*
*/
public static String splitUrl(Context context, String url) {
if (context == null) return null;
Log.d("Split string: ", url + " ");
try {
String splittedUrl[] = url.split(".com/");
Log.d("Split string: ", splittedUrl[1] + " ");
return splittedUrl.length == 2 ? splittedUrl[1] : url;
} catch (Exception ex) {
return url;
}
}

open fb on button click event without using facebook sdk
Intent FBIntent = new Intent(Intent.ACTION_SEND);
FBIntent.setType("text/plain");
FBIntent.setPackage("com.facebook.katana");
FBIntent.putExtra(Intent.EXTRA_TEXT, "The text you wanted to share");
try {
context.startActivity(FBIntent);
} catch (android.content.ActivityNotFoundException ex) {
Toast.makeText(context, "Facebook have not been installed.", Toast.LENGTH_SHORT).show( );
}

1-to get your id go to your image profile and click right click and take copy link adress.
try {
Intent intent = new Intent(Intent.ACTION_VIEW,Uri.parse("fb://profile/id"));
startActivity(intent);
} catch(Exception e) {
startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse("facebook url")));
}
}
});

Declare constants
private String FACEBOOK_URL="https://www.facebook.com/approids";
private String FACEBOOK_PAGE_ID="approids";
Declare Method
public String getFacebookPageURL(Context context) {
PackageManager packageManager = context.getPackageManager();
try {
int versionCode = packageManager.getPackageInfo("com.facebook.katana", 0).versionCode;
boolean activated = packageManager.getApplicationInfo("com.facebook.katana", 0).enabled;
if(activated){
if ((versionCode >= 3002850)) {
Log.d("main","fb first url");
return "fb://facewebmodal/f?href=" + FACEBOOK_URL;
} else {
return "fb://page/" + FACEBOOK_PAGE_ID;
}
}else{
return FACEBOOK_URL;
}
} catch (PackageManager.NameNotFoundException e) {
return FACEBOOK_URL;
}
}
Call Function
Intent facebookIntent = new Intent(Intent.ACTION_VIEW);
String facebookUrl = getFacebookPageURL(MainActivity.this);
facebookIntent.setData(Uri.parse(facebookUrl));
startActivity(facebookIntent);

To open the Facebook page in Facebook app from your Webview add this code in your shouldOverrideUrlLoading method
if (url.startsWith("https://www.facebook.com || Your Facebook page address")) {
try {
startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse("fb://facewebmodal/f?href=" + url)));
} catch (Exception e2) {
startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse(url)));
}
return true;
}

Answering this in October 2018. The working code is the one using the pageID. I just tested it and it is functional.
public static void openUrl(Context ctx, String url){
Uri uri = Uri.parse(url);
if (url.contains(("facebook"))){
try {
ApplicationInfo applicationInfo = ctx.getPackageManager().getApplicationInfo("com.facebook.katana", 0);
if (applicationInfo.enabled) {
uri = Uri.parse("fb://page/<page_id>");
openURI(ctx, uri);
return;
}
} catch (PackageManager.NameNotFoundException ignored) {
openURI(ctx, uri);
return;
}
}

I implemented in this form in webview using fragment- inside oncreate:
webView.setWebViewClient(new WebViewClient()
{
public boolean shouldOverrideUrlLoading(WebView viewx, String urlx)
{
if(Uri.parse(urlx).getHost().endsWith("facebook.com")) {
{
goToFacebook();
}
return false;
}
Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse(urlx));
viewx.getContext().startActivity(intent);
return true;
}
});
and outside onCreateView :
private void goToFacebook() {
try {
String facebookUrl = getFacebookPageURL();
Intent facebookIntent = new Intent(Intent.ACTION_VIEW);
facebookIntent.setData(Uri.parse(facebookUrl));
startActivity(facebookIntent);
} catch (Exception e) {
e.printStackTrace();
}
}
//facebook url load
private String getFacebookPageURL() {
String FACEBOOK_URL = "https://www.facebook.com/pg/XXpagenameXX/";
String facebookurl = null;
try {
PackageManager packageManager = getActivity().getPackageManager();
if (packageManager != null) {
Intent activated = packageManager.getLaunchIntentForPackage("com.facebook.katana");
if (activated != null) {
int versionCode = packageManager.getPackageInfo("com.facebook.katana", 0).versionCode;
if (versionCode >= 3002850) {
facebookurl = "fb://page/XXXXXXpage_id";
}
} else {
facebookurl = FACEBOOK_URL;
}
} else {
facebookurl = FACEBOOK_URL;
}
} catch (Exception e) {
facebookurl = FACEBOOK_URL;
}
return facebookurl;
}

fun getOpenFacebookIntent(context: Context, url: String) {
return try {
context.packageManager.getPackageInfo("com.facebook.katana", 0)
context.startActivity(Intent(Intent.ACTION_VIEW, Uri.parse("fb://profile/$url/")))
} catch (e: Exception) {
context.startActivity(Intent(Intent.ACTION_VIEW, Uri.parse(url)))
}
}

Answer worked for me but one missing thing was to add query in manifest, here is my solution:
private void openFacebookApp() {
String facebookUrl = "www.facebook.com/XXXXXXXXXX";
String facebookID = "XXXXXXXXX";
try {
int versionCode = getActivity().getApplicationContext().getPackageManager().getPackageInfo("com.facebook.katana", 0).versionCode;
if(!facebookID.isEmpty()) {
// open the Facebook app using facebookID (fb://profile/facebookID or fb://page/facebookID)
Uri uri = Uri.parse("fb://page/" + facebookID);
startActivity(new Intent(Intent.ACTION_VIEW, uri));
} else if (versionCode >= 3002850 && !facebookUrl.isEmpty()) {
// open Facebook app using facebook url
Uri uri = Uri.parse("fb://facewebmodal/f?href=" + facebookUrl);
startActivity(new Intent(Intent.ACTION_VIEW, uri));
} else {
// Facebook is not installed. Open the browser
Uri uri = Uri.parse(facebookUrl);
startActivity(new Intent(Intent.ACTION_VIEW, uri));
}
} catch (PackageManager.NameNotFoundException e) {
// Facebook is not installed. Open the browser
Uri uri = Uri.parse(facebookUrl);
startActivity(new Intent(Intent.ACTION_VIEW, uri));
}
}
and add that in Manifest outside the application tag
<queries>
<package android:name="com.google.android.gm" />
<package android:name="com.facebook.katana" />
<intent>
<action android:name="android.intent.action.VIEW" />
<data android:scheme="https" />
</intent>
<intent>
<action android:name="android.intent.action.DIAL" />
<data android:scheme="tel" />
</intent>
<intent>
<action android:name="android.intent.action.SEND" />
<data android:mimeType="*/*" />
</intent>
</queries>

I have been trying all of these methods with no luck because the ID... to find the one that works for my profile and for any profile you must go to the profile you want to open without been logged in (sorry for my english), inspect the page (in chrome Ctrl+Shift+I or just F12), and look for the line that holds the attribute al:android:url, the profile id should be there...
enter image description here
... And then:
public static void OpenFacebookProfile(String profileID, String username)
{
boolean isFacebookInstalled =
null != PA.getPackageManager().getLaunchIntentForPackage("com.facebook.katana");
Intent intent = isFacebookInstalled ?
new Intent(Intent.ACTION_VIEW, Uri.parse("fb://profile/" + profileID)) :
new Intent(Intent.ACTION_VIEW, Uri.parse("https://www.facebook.com/" + username));
PA.startActivity(intent);
}

try {
String[] parts = url.split("//www.facebook.com/profile.php?id=");
getPackageManager().getPackageInfo("com.facebook.katana", 0);
startActivity(new Intent (Intent.ACTION_VIEW, Uri.parse(String.format("fb://page/%s", parts[1].trim()))));
} catch (Exception e) {
startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse(url)));
}