This step-through will show you how to make application-specific settings, in this case the brightness of the screen. Please make sure you've at least read the Overview in the Userguide first.
First we will create a new profile with an Application context and then add an action to it.
Startup Tasker by clicking its icon.
This walk through assume you are in the beginner mode (Menu | Preferences - and select beginner mode)
We're in the Profile List screen. If not select the top left tab <Profiles>
Press the <?> button at the bottom left.
That menu item is available on every screen. Have a read to see what all the widgets do.
OK, now your head is warmed up, let's get started.
Make sure you are in the Profile tab (we want to create a profile with an Application Context) and
Press the <+> button then select the <Application> option on the popup
You will be shown a list of applications to select.
Pick any one or multiple and when done select the top left <Tasker> Button
Tasker returns to the Profile List, click on <New Task> on the popup and give it a name that suit the task and click the <Right Mark>.
You will see the edit screen for the new task.
Press the <+> button in the bottom to add an action to this task.
Tasks are divided into categories to make them easier to find.
Click <Display> and then select the action <Display Brightness>.
Now we're in the Action Edit dialog. Some actions are more complicated than others and can have extra parameters to specify how they act. The one we're using, Screen Brightness, needs to know
how bright you want the screen.
Move the slider to the far right, then when done select the top left <Tasker> Button - From now on referred as the <Tasker> button
Back at the Task Edit screen. Notice how the action we just created has been added to the task.
We could add other actions, and they would all run when the application you selected is launched.
We're finished editing our new Task, Press <Tasker> button
We're back at the Profile List, but this time you should see our brand new profile.
On the left are displayed the Contexts that make up the profile i.e. the conditions that must be met for it to become active. On the right is the task that will run when it becomes active and far right is a slider button indicating if the task is "on" or "off". Make sure the task is "on"
Time to see if it all works, but first we need to enable Tasker.
Long click <Tasker> button to get a popup to enable or disable Tasker
If the button isn't lit up, Tasker doesn't do anything when you leave.
Pressing the <home> button on your phone should Save the new changes or you could click on the menu button and exit, it will then ask you to save, if the changes were not saved
You should see the screen brightness go up when the application starts, and go back to how it was when you leave it.
If not, make sure your normal brightness is not at the maximum already (look in the Settings application).
Maybe you're wondering why the brightness went back down when you didn't ask it to ?
If you click on the Task again, you'll see that the action 'Screen Brightness' has a particular icon next to it. The icon signifies that the action is a special one called a Setting, and Tasker will always restore Settings that were changed in the Enter task when a profile exits.