How to open a installed android app with a button click intent?

Question

Hi i\'m working on a android launcher for education and I need it to be able to when the user clicks the school tools button it launches the school tools app that is install

Answer 1

This code snippet should do exactly what you are trying to achieve

Intent i;
PackageManager manager = getPackageManager();
try {
   i = manager.getLaunchIntentForPackage("com.example.schoolToolApp");
if (i == null)
    throw new PackageManager.NameNotFoundException();
i.addCategory(Intent.CATEGORY_LAUNCHER);
startActivity(i);
} catch (PackageManager.NameNotFoundException e) {

}

It will just launch another app by its package name

source - Open another application from your own (intent)