Android以编程方式启动程序包

Question

I got list of packaged from tablet(Samsung galaxy tab 2). I am trying to launch them using this. "url" being package name like com.sec.android.app.camera

PackageManager pm = getPackageManager(); Intent intent = pm.getLaunchIntentForPackage(url); startActivity(intent);

It's working for certain packages only. Camera, browser works but digital clock and whole lot doesn't launch. why ?

MY GOAL IS TO LAUNCH "TASK MANAGER" OR "ACTIVE TASKS". IS THIS POSSIBLE? ALSO I AM NOT ABLE TO FIND PACKAGE NAME FOR THAT.

THANKS,

Answer 1

I use the following bit to launch all the apps installed on my device one after another. Some of the apps on android have the same package name and do not return the meta information unless you request it.

public void onStart() {
    super.onStart();
    final PackageManager pm = getPackageManager();
    //get a list of installed applications.
    List<ApplicationInfo> packages = pm
                    .getInstalledApplications(PackageManager.GET_META_DATA);
          for (ApplicationInfo packageInfo : packages) {
              Intent LaunchIntent = getPackageManager().getLaunchIntentForPackage(packageInfo.packageName);

             if(LaunchIntent != null) {
               startActivity( LaunchIntent );
             }
          }
  }

Here's a way to get list of running apps :

ActivityManager actvityManager = (ActivityManager)
this.getSystemService( ACTIVITY_SERVICE );
List<RunningAppProcessInfo> procInfos = actvityManager.getRunningAppProcesses();