Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;

import android.content.Context;

import android.content.Intent;

import android.content.pm.PackageManager;

public class Main {
    private static Context sCurrentContext;

    /**
     * <pre>
     * Start other app by its package name.
     * </pre>
     * @param packageName app 's package name
     */
    public static void openApp(String packageName) {
        Context context = getCurrentContext();
        PackageManager manager = context.getPackageManager();
        Intent intent = manager.getLaunchIntentForPackage(packageName);
        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
        intent.addCategory(Intent.CATEGORY_LAUNCHER);
        context.startActivity(intent);
    }

    /**
     * <pre>
     * Get current context of the app. This method resolves the inconvenience of Android which requires context for most of its API.
     * If no activity is resumed, this method returns application context. Otherwise, this method returns last resumed activity.
     * </pre>
     */
    public static Context getCurrentContext() {
        return sCurrentContext;
    }
}