Java tutorial
//package com.java2s; //License from project: Open Source License import android.content.Context; import android.content.pm.PackageInfo; import android.content.pm.PackageManager; public class Main { public static final String BERRYMOTES_NAME = "com.trellmor.berrymotes"; /** * Check if BerryMotes app is installed * * @param context Android context * @return true if BerryMotes is installed */ public static boolean isBerryMotesInstalled(Context context) { PackageManager pm = context.getPackageManager(); try { pm.getPackageInfo(BERRYMOTES_NAME, PackageManager.GET_ACTIVITIES); return true; } catch (PackageManager.NameNotFoundException e) { return false; } } /** * Check if BerryMotes app is installed * * @param context Android context * @param version BerryMotes version * @return true if BerryMotes is installed */ public static boolean isBerryMotesInstalled(Context context, int version) { PackageManager pm = context.getPackageManager(); try { PackageInfo pi = pm.getPackageInfo(BERRYMOTES_NAME, PackageManager.GET_ACTIVITIES); return pi.versionCode >= version; } catch (PackageManager.NameNotFoundException e) { return false; } } }