CODEWITHSUNDEEP
javaandroid
Mtvw
Mtvw

Reputation: 336

Android execute when multiple tasks are done

I'm working on an app that downloads information from my server after an NFC card has been detected.

When a card is detected, I start - an Asynctask to download some data from my server - an animation of a popup appearing on the screen

After both the asynctask and the animation are done, I want to start a method that displays the downloaded data in the popup.

What is the correct way to trigger this new method? It can only start when both conditions are met.

Upvotes: 0

Views: 76

Answers (2)

Blackbelt
Blackbelt

Reputation: 157457

you Animation object has the method setAnimationLister. It takes as parameter a Class Object that implements the interface Animation.AnimationListener . This interface requires three methods to be implemented:

@Override
public void onAnimationStart(Animation animation) {

}

@Override
public void onAnimationEnd(Animation animation) {

}

@Override
public void onAnimationRepeat(Animation animation) {

}

The onAnimationEnd is triggered when the animation ends. If I have not misunderstood you, this is what you need

EDIT:

you could have two booleans value, boolean animationFinished = false, downloadFinished = false; When onPostExecute is called put downloadFinished to true and call yourMethod. When onAnimationEnd is triggered animationFinished = true and call yourMethod. yourMethod should start like:

if (!animationFinished || !downloadFinished)
 return;

Upvotes: 0

Saurabh
Saurabh

Reputation: 11

In the async task you use to download data add the onPostExecute method to remove the animation popup and show the downloaded data as well like this :

 protected void onPostExecute(Long result) {
     //put code to disable animation popup
     //code for displaying downloaded data popup
 }

For more info check out http://developer.android.com/reference/android/os/AsyncTask.html

Upvotes: 1

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