Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
//License from project: Open Source License 

import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;

import android.content.pm.PackageInfo;

import android.content.pm.PackageManager.NameNotFoundException;
import android.content.pm.ResolveInfo;

import java.util.List;

public class Main {
    public static void startAppByPackageName(Context context, String packageName) {
        PackageInfo pi = null;
        try {
            pi = context.getPackageManager().getPackageInfo(packageName, 0);
        } catch (NameNotFoundException e) {
            e.printStackTrace();
        }

        Intent resolveIntent = new Intent(Intent.ACTION_MAIN, null);
        resolveIntent.addCategory(Intent.CATEGORY_LAUNCHER);
        resolveIntent.setPackage(pi.packageName);

        List<ResolveInfo> apps = context.getPackageManager().queryIntentActivities(resolveIntent, 0);

        ResolveInfo ri = apps.iterator().next();
        if (ri != null) {
            String packageName1 = ri.activityInfo.packageName;
            String className = ri.activityInfo.name;

            Intent intent = new Intent(Intent.ACTION_MAIN);
            intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
            intent.addCategory(Intent.CATEGORY_LAUNCHER);

            ComponentName cn = new ComponentName(packageName1, className);

            intent.setComponent(cn);
            context.startActivity(intent);
        }

    }
}