Android How to - Get Package name of base activity

Question

We would like to know how to get Package name of base activity.

Answer

/*ww  w . j  a v a  2 s . c o m*/
import java.util.List;

import android.app.ActivityManager;
import android.app.ActivityManager.RunningTaskInfo;
import android.content.ComponentName;
import android.content.Context;
public class Main{
  
  /** Returns Package name of base activity.<p>
   * Requires GET_TASK permission
   * @param context Context to get base activity information
   * @return String containing base package name
   */
  public static String getBaseActivityPackageName(Context context) {
    ComponentName activity = getBaseActivity(context);
    if (activity == null) {
      return null;
    }
    return activity.getPackageName();
  }
  private static ComponentName getBaseActivity(Context context) {
    ActivityManager am = (ActivityManager)context.getSystemService(Context.ACTIVITY_SERVICE);
    if (am == null) {
      return null;
    }
    List<RunningTaskInfo> info = am.getRunningTasks(1);
    if (info == null) {
      return null;
    }
    ComponentName activity = info.get(0).baseActivity;
    return activity;
  }

}