Java Code Examples for android.widget.AdapterView#getCount()

private static boolean canAdapterViewScroll(AdapterView lv) {
    /* Force it to layout it's children */
    if (lv.getLastVisiblePosition() == -1)
        return false;

    /* We can scroll if the first or last item is not visible */
    boolean firstItemVisible = lv.getFirstVisiblePosition() == 0;
    boolean lastItemVisible = lv.getLastVisiblePosition() == lv.getCount() - 1;

    if (firstItemVisible && lastItemVisible && lv.getChildCount() > 0) {
        /* Or the first item's top is above or own top */
        if (lv.getChildAt(0).getTop() < lv.getPaddingTop())
            return true;
        /* or the last item's bottom is beyond our own bottom */
        return lv.getChildAt(lv.getChildCount() - 1).getBottom() >
                lv.getHeight() - lv.getPaddingBottom();
    }

    return true;
}
 

/** 相册列表点击事件 */
@Override
public void onItemClick(AdapterView<?> parent, View view, int position,
        long id) {
    AlbumModel current = (AlbumModel) parent.getItemAtPosition(position);
    for (int i = 0; i < parent.getCount(); i++) {
        AlbumModel album = (AlbumModel) parent.getItemAtPosition(i);
        if (i == position) {
            album.setCheck(true);
        }
        else {
            album.setCheck(false);
        }
    }
    albumAdapter.notifyDataSetChanged();
    hideAlbum();
    tvAlbum.setText(current.getName());

    if (current.getName().equals(RECCENT_PHOTO)) {
        photoSelectorDomain.getReccent(reccentListener);
    } else {
        photoSelectorDomain.getAlbum(current.getName(), reccentListener); // 获取选中相册的照片
    }
}
 

@Override
public void onItemClick(final AdapterView<?> parent, final View view,
        final int position, final long id) {
    if (AppContext.DEBUG) {
        log("onItemClick() list.size=" + parent.getCount()
                + " adapter.size=" + parent.getAdapter().getCount()
                + " position=" + position + " id=" + id);
    }
    final Object o = parent.getItemAtPosition(position);
    if (o == null) {
        if (position == 0) {
            setRefreshing();
        } else if (position == (parent.getCount() - 1)) {
            setLoading();
        }
    } else {
        if (this.mOnRefreshListener != null) {
            this.mOnRefreshListener.onItemClick(this, view, position);
        }
    }
}
 

@Override
public void onItemClick(final AdapterView<?> parent, final View view,
        final int position, final long id) {
    if (AppContext.DEBUG) {
        log("onItemClick() list.size=" + parent.getCount()
                + " adapter.size=" + parent.getAdapter().getCount()
                + " position=" + position + " id=" + id);
    }
    final Object o = parent.getItemAtPosition(position);
    if (o == null) {
        if (position == (parent.getCount() - 1)) {
            setLoading();
        }
    } else {
        if (this.mOnRefreshListener != null) {
            this.mOnRefreshListener.onItemClick(this, position);
        }
    }
}
 

@Override
public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
    if (parent.getCount() > position) {
        ChanBoard b = (ChanBoard) parent.getItemAtPosition(position);
        boardName = b.getName();
        boardTitle = b.getTitle();

        refreshBoard(true);
    }
}
 

@Override
public void onItemSelected(AdapterView<?> listView, View view, int position, long id) {
    if (listView.getLastVisiblePosition() + 1 == listView.getCount()) {// 如果滚动到最后一行
        if (onScrollBottomListener != null) {
            onScrollBottomListener.onScorllBootom();
        }
    }
}
 

@Override
public void onItemSelected(AdapterView<?> adapterView, View view, int position, long id) {
    if (adapterView.getLastVisiblePosition() + 1 == adapterView.getCount()) {// 如果滚动到最后一行
        if (onScrollBottomListener != null) {
            onScrollBottomListener.onScorllBootom();
        }
    }
}
 

private boolean canListScroll(int direction) {
    AdapterView<?> absListView = (AdapterView<?>) mTargetView;
    final int itemCount = absListView.getCount();
    final int childCount = absListView.getChildCount();
    final int firstPosition = absListView.getFirstVisiblePosition();
    final int lastPosition = firstPosition + childCount;

    if (itemCount == 0) {
        return false;
    }
    if (direction > 0) {
        // Are we already showing the entire last item?
        if (lastPosition >= itemCount) {
            final View lastView = absListView.getChildAt(childCount - 1);
            if (lastView != null
                    && lastView.getBottom() >= mTargetView.getHeight()) {
                return false;
            }
        }
    } else if (direction < 0) {
        // Are we already showing the entire first item?
        if (firstPosition <= 0) {
            final View firstView = absListView.getChildAt(0);
            if (firstView != null && firstView.getTop() >= 0) {
                return false;
            }
        }
    }
    return true;
}
 

@Override
public Iterable<AdaptedData> getDataInAdapterView(AdapterView<? extends Adapter> adapterView) {
  List<AdaptedData> datas = Lists.newArrayList();
  for (int i = 0; i < adapterView.getCount(); i++) {
    int position = i;
    Object dataAtPosition = adapterView.getItemAtPosition(position);
    datas.add(
        new AdaptedData.Builder()
            .withDataFunction(new StandardDataFunction(dataAtPosition, position))
            .withOpaqueToken(position)
            .build());
  }
  return datas;
}
 

@TargetApi(Build.VERSION_CODES.JELLY_BEAN)
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
    for (int i = 0; i < parent.getCount(); i++)
        view.setBackground(getColouredTouchFeedback());
    selectItem(position);
}
 

@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
    selectItem(position);
    if(!isActivity(position)){
     	for(int i=0;i<parent.getCount();i++){
      View v=parent.getChildAt(i);
      if (position == i) {
          v.setBackgroundColor(Color.GRAY);
      } else {
          v.setBackgroundColor(Color.TRANSPARENT);
      }
  }
    }
    }
 

@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
    if (position == parent.getCount() - 1) {
        showCreateFromSingleColorDialog();
    } else if (position == parent.getCount() - 2) {
        showCopyFromExistingThemeDialog();
    } else if (position == 0) {
        SwitchPreference preference = (SwitchPreference) getPreference(position);
        preference.setChecked(!preference.isChecked());
    } else {
        ((ColorPickerPreference) getPreference(position)).onPreferenceClick(null);
    }
}