How to check if Facebook is installed Android

Question

I am modifying my app to be able to catch if a user tries to publish without having the facebook app installed (required for SSO). Here is the code I am using:

try{
    ApplicationInfo info = getPackageManager().
            getApplicationInfo("com.facebook.android", 0 );
    return true;
} catch( PackageManager.NameNotFoundException e ){
    return false;
}

The problem is, it is always catching an error. According to the question here, I need to request the appropriate permission but I don't know what permissions I need to request.

Is my problem a permission one or something else?

Answer 1

com.facebook.android is the package name for the Facebook SDK. The Facebook app's package is com.facebook.katana.

Answer 2

To check whether or not an app is installed on Android use this method:

public static boolean isPackageInstalled(Context c, String targetPackage) {
    PackageManager pm = c.getPackageManager();
    try {
        PackageInfo info = pm.getPackageInfo(targetPackage, PackageManager.GET_META_DATA);
    } catch (NameNotFoundException e) {
        return false;
    }
    return true;
}

In your case use any of these packages:

• com.facebook.orca
• com.facebook.katana
• com.example.facebook
• com.facebook.android

boolean hasPackage = isPackageInstalled(MainActivity.this, "com.facebook.katana");

• For Kotlin

    fun isPackageInstalled(packageName: String, context: Context): Boolean {
       return try {
                val packageManager = context.packageManager
                packageManager.getPackageInfo(packageName, 0)
                true
            } catch (e: PackageManager.NameNotFoundException) {
                false
            }
        }
  

Answer 3

 if (isAppInstalled()) {
        Toast.makeText(getApplicationContext(), "facebook app already installed", Toast.LENGTH_SHORT).show();
    } else {
        Toast.makeText(getApplicationContext(), "facebook app not installing", Toast.LENGTH_SHORT).show();
    }



public boolean isAppInstalled() {
            try {
                getApplicationContext().getPackageManager().getApplicationInfo("com.facebook.katana", 0);
                return true;
            } catch (PackageManager.NameNotFoundException e) {
                return false;
            }
        }

Answer 4

Write the function in Utilities or anywhere suit for you.This will function will help you to check any app installed or not.let me say for myself it is in Utilities.java

public static boolean isAppInstalled(Context context, String packageName) {
        try {
            context.getPackageManager().getApplicationInfo(packageName, 0);
            return true;
        } catch (PackageManager.NameNotFoundException e) {
            return false;
        }
    }

Then, Call this function from anywhere. for eg to check facebook app

if(Utilities.isAppInstalled(getApplicationContext(), "com.facebook.katana")) {
                    // Do something
                }else {
                    Intent i = new Intent(android.content.Intent.ACTION_VIEW);
                    i.setData(Uri.parse("https://play.google.com/store/apps/details?id=com.facebook.katana"));
                    startActivity(i);
                }

Enjoy