Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
//License from project: Apache License 

import java.util.Iterator;
import java.util.List;
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;

public class Main {
    /**
     * open another app
     * @param context
     * @param packageName
     * @throws NameNotFoundException 
     */
    public static void openApp(Context context, String packageName) throws NameNotFoundException {
        PackageInfo pi = context.getPackageManager().getPackageInfo(packageName, 0);

        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);

        Iterator<ResolveInfo> iterator = apps.iterator();
        while (iterator.hasNext()) {
            ResolveInfo ri = iterator.next();
            if (ri != null) {
                packageName = ri.activityInfo.packageName;
                String className = ri.activityInfo.name;
                Intent intent = new Intent(Intent.ACTION_MAIN);
                intent.addCategory(Intent.CATEGORY_LAUNCHER);
                ComponentName cn = new ComponentName(packageName, className);
                intent.setComponent(cn);
                context.startActivity(intent);
            }
        }
    }
}