android.widget.SectionIndexer#getPositionForSection ( )源码实例Demo

下面列出了android.widget.SectionIndexer#getPositionForSection ( ) 实例代码，或者点击链接到github查看源代码，也可以在右侧发表评论。

源代码1 项目： AndroidWeekly 文件： PinnedSectionListView.java

int findCurrentSectionPosition(int fromPosition) {
    ListAdapter adapter = getAdapter();

    if (fromPosition >= adapter.getCount()) return -1; // dataset has changed, no candidate

    if (adapter instanceof SectionIndexer) {
        // try fast way by asking section indexer
        SectionIndexer indexer = (SectionIndexer) adapter;
        int sectionPosition = indexer.getSectionForPosition(fromPosition);
        int itemPosition = indexer.getPositionForSection(sectionPosition);
        int typeView = adapter.getItemViewType(itemPosition);
        if (isItemViewTypePinned(adapter, typeView)) {
            return itemPosition;
        } // else, no luck
    }

    // try slow way by looking through to the next section item above
    for (int position = fromPosition; position >= 0; position--) {
        int viewType = adapter.getItemViewType(position);
        if (isItemViewTypePinned(adapter, viewType)) return position;
    }
    return -1; // no candidate found
}

源代码2 项目： Yahala-Messenger 文件： PinnedSectionListView.java

int findCurrentSectionPosition(int fromPosition) {
    ListAdapter adapter = getAdapter();

    if (adapter instanceof SectionIndexer) {
        // try fast way by asking section indexer
        SectionIndexer indexer = (SectionIndexer) adapter;
        int sectionPosition = indexer.getSectionForPosition(fromPosition);
        int itemPosition = indexer.getPositionForSection(sectionPosition);
        int typeView = adapter.getItemViewType(itemPosition);
        if (isItemViewTypePinned(adapter, typeView)) {
            return itemPosition;
        } // else, no luck
    }

    // try slow way by looking through to the next section item above
    for (int position = fromPosition; position >= 0; position--) {
        int viewType = adapter.getItemViewType(position);
        if (isItemViewTypePinned(adapter, viewType)) return position;
    }
    return -1; // no candidate found
}

源代码3 项目： BigApp_Discuz_Android 文件： PinnedSectionListView.java

int findCurrentSectionPosition(int fromPosition) {
    ListAdapter adapter = getAdapter();

    if (adapter instanceof SectionIndexer) {
        // try fast way by asking section indexer
        SectionIndexer indexer = (SectionIndexer) adapter;
        int sectionPosition = indexer.getSectionForPosition(fromPosition);
        int itemPosition = indexer.getPositionForSection(sectionPosition);
        int typeView = adapter.getItemViewType(itemPosition);
        if (isItemViewTypePinned(adapter, typeView)) {
            return itemPosition;
        } // else, no luck
    }

    // try slow way by looking through to the next section item above
    for (int position = fromPosition; position >= 0; position--) {
        int viewType = adapter.getItemViewType(position);
        if (isItemViewTypePinned(adapter, viewType)) return position;
    }
    return -1; // no candidate found
}

源代码4 项目： Contacts 文件： PinnedSectionListView.java

int findCurrentSectionPosition(int fromPosition) {
	ListAdapter adapter = getAdapter();

	if (adapter instanceof SectionIndexer) {
		// try fast way by asking section indexer
		SectionIndexer indexer = (SectionIndexer) adapter;
		int sectionPosition = indexer.getSectionForPosition(fromPosition);
		int itemPosition = indexer.getPositionForSection(sectionPosition);
		int typeView = adapter.getItemViewType(itemPosition);
		if (isItemViewTypePinned(adapter, typeView)) {
			return itemPosition;
		} // else, no luck
	}

	// try slow way by looking through to the next section item above
	for (int position=fromPosition; position>=0; position--) {
		int viewType = adapter.getItemViewType(position);
		if (isItemViewTypePinned(adapter, viewType)) return position;
	}
	return -1; // no candidate found
}

源代码5 项目： PullToRefresh-PinnedSection-ListView 文件： PinnedSectionListView.java

int findCurrentSectionPosition(int fromPosition) {
	ListAdapter adapter = getAdapter();

	if (adapter instanceof SectionIndexer) {
		// try fast way by asking section indexer
		SectionIndexer indexer = (SectionIndexer) adapter;
		int sectionPosition = indexer.getSectionForPosition(fromPosition);
		int itemPosition = indexer.getPositionForSection(sectionPosition);
		int typeView = adapter.getItemViewType(itemPosition);
		if (isItemViewTypePinned(adapter, typeView)) {
			return itemPosition;
		} // else, no luck
	}

	// try slow way by looking through to the next section item above
	for (int position=fromPosition; position>=0; position--) {
		int viewType = adapter.getItemViewType(position);
		if (isItemViewTypePinned(adapter, viewType)) return position;
	}
	return -1; // no candidate found
}

源代码6 项目： android-open-project-demo 文件： PinnedSectionListView.java

int findCurrentSectionPosition(int fromPosition) {
	ListAdapter adapter = getAdapter();

	if (adapter instanceof SectionIndexer) {
		// try fast way by asking section indexer
		SectionIndexer indexer = (SectionIndexer) adapter;
		int sectionPosition = indexer.getSectionForPosition(fromPosition);
		int itemPosition = indexer.getPositionForSection(sectionPosition);
		int typeView = adapter.getItemViewType(itemPosition);
		if (isItemViewTypePinned(adapter, typeView)) {
			return itemPosition;
		} // else, no luck
	}

	// try slow way by looking through to the next section item above
	for (int position=fromPosition; position>=0; position--) {
		int viewType = adapter.getItemViewType(position);
		if (isItemViewTypePinned(adapter, viewType)) return position;
	}
	return -1; // no candidate found
}

源代码7 项目： Kernel-Tuner 文件： PinnedSectionListView.java

int findCurrentSectionPosition(int fromPosition) {
	ListAdapter adapter = getAdapter();

	if (adapter instanceof SectionIndexer) {
		// try fast way by asking section indexer
		SectionIndexer indexer = (SectionIndexer) adapter;
		int sectionPosition = indexer.getSectionForPosition(fromPosition);
		int itemPosition = indexer.getPositionForSection(sectionPosition);
		int typeView = adapter.getItemViewType(itemPosition);
		if (isItemViewTypePinned(adapter, typeView)) {
			return itemPosition;
		} // else, no luck
	}

	// try slow way by looking through to the next section item above
	for (int position=fromPosition; position>=0; position--) {
		int viewType = adapter.getItemViewType(position);
		if (isItemViewTypePinned(adapter, viewType)) return position;
	}
	return -1; // no candidate found
}

源代码8 项目： KUAS-AP-Material 文件： PinnedSectionListView.java

int findCurrentSectionPosition(int fromPosition) {
	ListAdapter adapter = getAdapter();

	// dataset has changed, no candidate
	if (fromPosition >= adapter.getCount()) {
		return -1;
	}

	if (adapter instanceof SectionIndexer) {
		// try fast way by asking section indexer
		SectionIndexer indexer = (SectionIndexer) adapter;
		int sectionPosition = indexer.getSectionForPosition(fromPosition);
		int itemPosition = indexer.getPositionForSection(sectionPosition);
		int typeView = adapter.getItemViewType(itemPosition);
		if (isItemViewTypePinned(adapter, typeView)) {
			return itemPosition;
		} // else, no luck
	}

	// try slow way by looking through to the next section item above
	for (int position = fromPosition; position >= 0; position--) {
		int viewType = adapter.getItemViewType(position);
		if (isItemViewTypePinned(adapter, viewType)) {
			return position;
		}
	}
	// no candidate found
	return -1;
}

源代码9 项目： KUAS-AP-Material 文件： PinnedSectionListView.java

int findCurrentSectionPosition(int fromPosition) {
	ListAdapter adapter = getAdapter();

	// dataset has changed, no candidate
	if (fromPosition >= adapter.getCount()) {
		return -1;
	}

	if (adapter instanceof SectionIndexer) {
		// try fast way by asking section indexer
		SectionIndexer indexer = (SectionIndexer) adapter;
		int sectionPosition = indexer.getSectionForPosition(fromPosition);
		int itemPosition = indexer.getPositionForSection(sectionPosition);
		int typeView = adapter.getItemViewType(itemPosition);
		if (isItemViewTypePinned(adapter, typeView)) {
			return itemPosition;
		} // else, no luck
	}

	// try slow way by looking through to the next section item above
	for (int position = fromPosition; position >= 0; position--) {
		int viewType = adapter.getItemViewType(position);
		if (isItemViewTypePinned(adapter, viewType)) {
			return position;
		}
	}
	// no candidate found
	return -1;
}

方法所在类

android.widget.SectionIndexer