Java tutorial
//package com.java2s; import android.content.Context; import android.content.pm.ApplicationInfo; import android.content.pm.PackageManager; import android.content.pm.PackageManager.NameNotFoundException; public class Main { public static boolean isApkInstalled(Context context, String packageName) { try { ApplicationInfo info = context.getPackageManager().getApplicationInfo(packageName, PackageManager.GET_UNINSTALLED_PACKAGES); return info != null; } catch (NameNotFoundException e) { return false; } } }