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Use subscriptions in onCreate method in CataloguePresenter
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@@ -2,35 +2,25 @@ package eu.kanade.mangafeed.widget;
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import android.widget.AbsListView;
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public abstract class EndlessScrollListener implements AbsListView.OnScrollListener {
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import rx.functions.Action0;
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public class EndlessScrollListener implements AbsListView.OnScrollListener {
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// The minimum amount of items to have below your current scroll position
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// before loading more.
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private int visibleThreshold = 5;
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// The current offset index of data you have loaded
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private int currentPage = 0;
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// The total number of items in the dataset after the last load
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private int previousTotalItemCount = 0;
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// True if we are still waiting for the last set of data to load.
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private boolean loading = true;
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// Sets the starting page index
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private int startingPageIndex = 0;
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public EndlessScrollListener() {
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}
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private Action0 requestNext;
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public EndlessScrollListener(int visibleThreshold) {
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this.visibleThreshold = visibleThreshold;
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}
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public EndlessScrollListener(int visibleThreshold, int startPage) {
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this.visibleThreshold = visibleThreshold;
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this.startingPageIndex = startPage;
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this.currentPage = startPage;
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public EndlessScrollListener(Action0 requestNext) {
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this.requestNext = requestNext;
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}
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public void resetScroll() {
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this.currentPage = 0;
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this.startingPageIndex = 0;
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this.previousTotalItemCount = 0;
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this.loading = true;
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}
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@@ -43,7 +33,6 @@ public abstract class EndlessScrollListener implements AbsListView.OnScrollListe
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// If the total item count is zero and the previous isn't, assume the
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// list is invalidated and should be reset back to initial state
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if (totalItemCount < previousTotalItemCount) {
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this.currentPage = this.startingPageIndex;
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this.previousTotalItemCount = totalItemCount;
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if (totalItemCount == 0) { this.loading = true; }
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}
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@@ -53,31 +42,20 @@ public abstract class EndlessScrollListener implements AbsListView.OnScrollListe
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if (loading && (totalItemCount > previousTotalItemCount)) {
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loading = false;
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previousTotalItemCount = totalItemCount;
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currentPage++;
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}
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// If it isn’t currently loading, we check to see if we have breached
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// the visibleThreshold and need to reload more data.
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// If we do need to reload some more data, we execute onLoadMore to fetch the data.
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if (!loading && (totalItemCount - visibleItemCount)<=(firstVisibleItem + visibleThreshold)) {
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loading = onLoadMore(currentPage + 1, totalItemCount);
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requestNext.call();
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loading = true;
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}
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}
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// Defines the process for actually loading more data based on page
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// Returns true if more data is being loaded; returns false if there is no more data to load.
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public abstract boolean onLoadMore(int page, int totalItemsCount);
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@Override
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public void onScrollStateChanged(AbsListView view, int scrollState) {
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// Don't take any action on changed
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}
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public int getCurrentPage() {
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return currentPage;
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}
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public void setCurrentPage(int currentPage) {
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this.currentPage = currentPage;
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}
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}
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