CODEWITHSUNDEEP
androidandroid-viewpagerfragment
Kishan Raval
Kishan Raval

Reputation: 569

Load data when user stops swiping in fragmentviewpager in android?

Load fragment when user stops swiping instead of previous,current,next pattern in fragmentviewpager in android? Load single fragment at a time in fragmentviewpager instead of multiple.

Upvotes: 1

Views: 161

Answers (1)

Kishan Raval
Kishan Raval

Reputation: 569

On Fragment Load FragmentViewPager sets setUserVisibleHint to true of current fragment. Through that we can put delay in loading fragment in FragmentViewPager. In Below code i have put delay of 1000 ms.

@Override public boolean getUserVisibleHint() {

    boolean isVisible = super.getUserVisibleHint();
    return isVisible;
}

public Runnable handleDelays = new Runnable() {
    @Override
    public void run() {
        if (getUserVisibleHint()) {
            // Application Logic    

        }
    }
};
private Handler pagerHandler;

@Override
public void setUserVisibleHint(boolean isVisibleToUser) {
    super.setUserVisibleHint(isVisibleToUser);
    if (this.isVisible()) {
        if (!isVisibleToUser) {
            pagerHandler.removeCallbacks(handleDelays);
        } else {
            pagerHandler.removeCallbacks(handleDelays);
            pagerHandler.postDelayed(handleDelays, 1000);
        }
    } else {
        if (pagerHandler != null) {
            if (!isVisibleToUser) {
                pagerHandler.removeCallbacks(handleDelays);
            } else {
                pagerHandler.removeCallbacks(handleDelays);
                pagerHandler.postDelayed(handleDelays, 1000);
            }
        } else {
            pagerHandler = new Handler();
        }
    }
}

Upvotes: 1

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