is PDF Apps Exists - Android App

Android examples for App:App Install

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Description

is PDF Apps Exists

Demo Code


//package com.java2s;

import java.util.List;

import android.content.Context;
import android.content.Intent;
import android.content.pm.ResolveInfo;

public class Main {
    public static boolean isPDFAppsExists(Context context) {
        Intent intent = new Intent(Intent.ACTION_VIEW);
        // we just query the app exists or not, no need the Uri data.
        intent.setDataAndType(null, "application/pdf");
        intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
        // queryMatchIntent() never return null.
        return queryMatchIntent(context, intent).size() > 0;
    }// w ww  . j  av  a  2s .co  m

    /**
     * Return matching activities list or an empty list if no matching.
     * 
     * @param context
     * @param intent
     * @return
     */
    public static List<ResolveInfo> queryMatchIntent(Context context,
            Intent intent) {
        // You can use ResolveInfo.activityInfo.packageName or ResolveInfo.activityInfo.name to filter intents.
        return context.getPackageManager().queryIntentActivities(intent,
                android.content.pm.PackageManager.MATCH_DEFAULT_ONLY);
    }
}

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