如何在Android中引入活动？

Question

I am using moveTasktoBack() function to send my activity to background. I want to bring my activity to front when a timer in my activity finishes. I am using the phone back key to send the activity to back. How do I do that? Help please.

Answer 1

Exact Same issue that is mentioned on this Question.

Sloved it with following code snippet. i.addFlags(Intent.FLAG_ACTIVITY_REORDER_TO_FRONT) ; actauul which brings back the activity to front.

Intent i=new Intent(ApplicationStatus.this,NotifyActivity.class);
                    //i.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
                    i.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
                    i.addFlags(Intent.FLAG_ACTIVITY_REORDER_TO_FRONT);
                    i.putExtra("ID_TimeLeft",String.valueOf(TimeLeft));
                    startActivity(i);

Answer 2

我认为它应该是FLAG_ACTIVITY_SINGLE_TOP 。

Answer 3

You can use intent with the appropriate flags. FLAG_ACTIVITY_NEW_TASK to create a new task to contain your activity if one doesn't already exist. FLAG_ACTIVITY_REORDER_TO_FRONT to bring your activity to the front of the task if it's not already there.

Intent intent = new Intent(context, YourActivity.class);
intent.addFlags(Intent.FLAG_ACTIVITY_REORDER_TO_FRONT | Intent.FLAG_ACTIVITY_NEW_TASK);

context.startActivity(intent);