Main.java Source code

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Here is the source code for Main.java

Source

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

import java.util.List;

import android.app.ActivityManager;

import android.app.ActivityManager.RunningTaskInfo;
import android.content.ComponentName;
import android.content.Context;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.content.pm.PackageManager.NameNotFoundException;

public class Main {
    /**
     * whether application is in background
     * <ul>
     * <li>need use permission android.permission.GET_TASKS in Manifest.xml</li>
     * </ul>
     * 
     * @param context
     * @return if application is in background return true, otherwise return
     *         false
     */
    public static boolean isApplicationInBackground(Context context) {
        ActivityManager am = (ActivityManager) context.getSystemService(Context.ACTIVITY_SERVICE);
        List<RunningTaskInfo> taskList = am.getRunningTasks(1);
        if (taskList != null && !taskList.isEmpty()) {
            ComponentName topActivity = taskList.get(0).topActivity;
            if (topActivity != null && !topActivity.getPackageName().equals(context.getPackageName())) {
                return true;
            }
        }
        return false;
    }

    /**
     * Gets the Package Name
     * 
     * @return
     */
    public static String getPackageName(Context context) {
        PackageManager p = context.getPackageManager();
        // GetPackageName () is your current class package name, 0 stands for is
        // to get version information
        PackageInfo packInfo;
        try {
            packInfo = p.getPackageInfo(context.getPackageName(), 0);
            return packInfo.packageName;
        } catch (NameNotFoundException e) {
            e.printStackTrace();
            return "";
        }
    }
}