Java Mode.PULL_FROM_END属性代码示例

public final void onScrollStateChanged(final AbsListView view, final int state) {
	/**
	 * Check that the scrolling has stopped, and that the last item is
	 * visible.
	 */
	if (state == OnScrollListener.SCROLL_STATE_IDLE && null != mOnLastItemVisibleListener && mLastItemVisible) {
		mOnLastItemVisibleListener.onLastItemVisible();
	}
	
	if (state == OnScrollListener.SCROLL_STATE_IDLE && !isRefreshing()
			&& (getMode() == Mode.BOTH || getMode() == Mode.PULL_FROM_END)) {
		hideLoadMoreView();
	}

	if (null != mOnScrollListener) {
		mOnScrollListener.onScrollStateChanged(view, state);
	}
	
	//auto load
	mCurrentScrollState = state;
}
 

public final void onScroll(final AbsListView view, final int firstVisibleItem, final int visibleItemCount,
		final int totalItemCount) {
	
	/**
	 * Set whether the Last Item is Visible. lastVisibleItemIndex is a
	 * zero-based index, so we minus one totalItemCount to check
	 */
	
	mLastItemVisible = (totalItemCount > 0) && (firstVisibleItem + visibleItemCount >= totalItemCount - 1);

	if (DEBUG) {
		Log.d(LOG_TAG, "First Visible: " + firstVisibleItem + ". Visible Count: " + visibleItemCount
				+ ". Total Items:" + totalItemCount + " mLastItemVisible:" + mLastItemVisible);
	}
	
	// If we're showing the indicator, check positions...
	if (getShowIndicatorInternal()) {
		updateIndicatorViewsVisibility();
	}

	// Finally call OnScrollListener if we have one
	if (null != mOnScrollListener) {
		mOnScrollListener.onScroll(view, firstVisibleItem, visibleItemCount, totalItemCount);
	}
	
	//auto load
	boolean loadMore = firstVisibleItem + visibleItemCount >= totalItemCount;
	
	if(isRefreshing()) {
		return;
	}
	
	if (DEBUG) {
		Log.d(LOG_TAG, "loadMore:" + loadMore + " isAutoLoadMore:"
				+ isAutoLoadMore() + " hasMore:" + hasMore()
				+ " mCurrentScrollState:" + mCurrentScrollState);
	}

	if (isAutoLoadMore() && hasMore()
			&& mCurrentScrollState != SCROLL_STATE_IDLE
			&& (getMode() == Mode.BOTH || getMode() == Mode.PULL_FROM_END)
			&& isTouchEvent()) {
		if (mCurrentScrollState == SCROLL_STATE_TOUCH_SCROLL) {
			showLoadMoreView();
		}
		if (loadMore && isShowLoadMoreView()) {
			onLoadMore();
		}
	}

		// intercept the listview
	if(firstVisibleItem == 0 || (mLastItemVisible && !isAutoLoadMore())) {
		view.getParent().requestDisallowInterceptTouchEvent(false);
		requestDisallowInterceptTouchEvent();
	}
}
 

/**
 * Load labels of pull
 * <br />Convert an {@code ptrPullLabel} attribute value to {@code mPullLabel} field if each value exists.
 * <br />Or if not, then the pull label is assigned some string as default
 * <br />If you want to set some custom pull label at sub class, you have to override this method and implement.
 * NOTE : This method <b>Must</b> be modified if kinds of {@code Mode} are increased.
 * @param context
 * @param attrs
 * @param mode
 * @return String to be a pull label  
 */
protected String loadPullLabel(Context context, TypedArray attrs, Mode mode) {
	// Pull Label
	if (attrs.hasValue(R.styleable.PullToRefresh_ptrPullLabel)) {
		return attrs.getString(R.styleable.PullToRefresh_ptrPullLabel);
	} 
	
	int stringId = (mode == Mode.PULL_FROM_END) ? R.string.pull_to_refresh_from_bottom_pull_label : R.string.pull_to_refresh_pull_label;
	return context.getString(stringId);
}
 

/**
 * Load labels of refreshing
 * <br />Convert an {@code ptrRefreshLabel} attribute value to {@code mRefreshingLabel} field if each value exists.
 * <br />Or if not, then the refreshing label is assigned some string as default
 * <br />If you want to set some custom refreshing label at sub class, you have to override this method and implement.
 * NOTE : This method <b>Must</b> be modified if kinds of {@code Mode} are increased.
 * @param context
 * @param attrs
 * @param mode
 * @return String to be a refreshing label  
 */
protected String loadRefreshingLabel(Context context, TypedArray attrs,
		Mode mode) {
	// Refresh Label
	if (attrs.hasValue(R.styleable.PullToRefresh_ptrRefreshLabel)) {
		return attrs.getString(R.styleable.PullToRefresh_ptrRefreshLabel);
	} 
	
	int stringId = (mode == Mode.PULL_FROM_END) ? R.string.pull_to_refresh_from_bottom_refreshing_label : R.string.pull_to_refresh_refreshing_label;
	return context.getString(stringId);
}
 

/**
 * Load labels of release
 * <br />Convert an {@code ptrReleaseLabel} attribute value to {@code mReleaseLabel} field if each value exists.
 * <br />Or if not, then the release label is assigned some string as default
 * <br />If you want to set some custom release label at sub class, you have to override this method and implement.
 * NOTE : This method <b>Must</b> be modified if kinds of {@code Mode} are increased.
 * @param context
 * @param attrs
 * @param mode
 * @return String to be a refreshing label  
 */
protected String loadReleaseLabel(Context context, TypedArray attrs, Mode mode) {
	// Release Label
	if (attrs.hasValue(R.styleable.PullToRefresh_ptrReleaseLabel)) {
		return attrs.getString(R.styleable.PullToRefresh_ptrReleaseLabel);
	} 
	
	int stringId = (mode == Mode.PULL_FROM_END) ? R.string.pull_to_refresh_from_bottom_release_label : R.string.pull_to_refresh_release_label;
	return context.getString(stringId);
	
}