Bring application to front after user clicks on home button

Question

My application is in running mode[foreground] and user clicks on home button, which puts application to background[and still running]. I ha

Answer 1

I find a new way to bring app to foreground, It imitate click Icon to launch application.

    PackageManager packageManager = context.getPackageManager();
    Intent intent = packageManager.getLaunchIntentForPackage(pkName);
    if (intent != null)
    {
            //模拟点击桌面图标的启动参数
            intent.setPackage(null);
         // intent.setSourceBounds(new Rect(804,378, 1068, 657));
            intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK|Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED);
           context.startActivity(intent);

    }

it work for me, But who can tell me why package must be null