Java tutorial
//package com.java2s; //License from project: Mozilla Public License import android.content.Context; import android.content.pm.PackageManager; public class Main { private static boolean isAppInstalled(Context context, String uri) { try { PackageManager pm = context.getPackageManager(); pm.getPackageInfo(uri, PackageManager.GET_ACTIVITIES); return true; } catch (PackageManager.NameNotFoundException e) { return false; } } }