Example usage for android.widget GridView setOnScrollListener

Introduction

In this page you can find the example usage for android.widget GridView setOnScrollListener.

Prototype

public void setOnScrollListener(OnScrollListener l) 

Source Link

Document

Set the listener that will receive notifications every time the list scrolls.

Usage

From source file:com.example.kent_zheng.sdk_displayingbitmaps.displayingbitmaps.ui.ImageGridFragment.java

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {

    final View v = inflater.inflate(R.layout.image_grid_fragment, container, false);
    final GridView mGridView = (GridView) v.findViewById(R.id.gridView);
    mGridView.setAdapter(mAdapter);//  ww  w  .j  a  v a2  s . c om
    mGridView.setOnItemClickListener(this);

    mGridView.setOnScrollListener(new AbsListView.OnScrollListener() {
        @Override
        public void onScrollStateChanged(AbsListView absListView, int scrollState) {
            // Pause fetcher to ensure smoother scrolling when flinging
            if (scrollState == AbsListView.OnScrollListener.SCROLL_STATE_FLING) {
                // Before Honeycomb pause image loading on scroll to help with performance
                if (!Utils.hasHoneycomb()) {
                    mImageFetcher.setPauseWork(true);
                }
            } else {
                mImageFetcher.setPauseWork(false);
            }
        }

        @Override
        public void onScroll(AbsListView absListView, int firstVisibleItem, int visibleItemCount,
                int totalItemCount) {
        }
    });

    // This listener is used to get the final width of the GridView and then calculate the
    // number of columns and the width of each column. The width of each column is variable
    // as the GridView has stretchMode=columnWidth. The column width is used to set the height
    // of each view so we get nice square thumbnails.
    mGridView.getViewTreeObserver().addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
        @TargetApi(VERSION_CODES.JELLY_BEAN)
        @Override
        public void onGlobalLayout() {
            if (mAdapter.getNumColumns() == 0) {
                final int numColumns = (int) Math
                        .floor(mGridView.getWidth() / (mImageThumbSize + mImageThumbSpacing));
                if (numColumns > 0) {
                    final int columnWidth = (mGridView.getWidth() / numColumns) - mImageThumbSpacing;
                    mAdapter.setNumColumns(numColumns);
                    mAdapter.setItemHeight(columnWidth);
                    if (BuildConfig.DEBUG) {
                        Log.d(TAG, "onCreateView - numColumns set to " + numColumns);
                    }
                    if (Utils.hasJellyBean()) {
                        mGridView.getViewTreeObserver().removeOnGlobalLayoutListener(this);
                    } else {
                        mGridView.getViewTreeObserver().removeGlobalOnLayoutListener(this);
                    }
                }
            }
        }
    });

    return v;
}

---

From source file:com.drivehype.www.drivehype.ui.ImageGridFragment.java

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
    android.util.Log.d("extraCount", "on create view of IGF");
    final View v = inflater.inflate(R.layout.image_grid_fragment, container, false);
    final GridView mGridView = (GridView) v.findViewById(R.id.gridView);
    mGridView.setAdapter(mAdapter);/*from ww  w .ja v a 2  s .com*/
    mGridView.setOnItemClickListener(this);
    mGridView.setOnScrollListener(new AbsListView.OnScrollListener() {
        @Override
        public void onScrollStateChanged(AbsListView absListView, int scrollState) {
            // Pause fetcher to ensure smoother scrolling when flinging
            if (scrollState == AbsListView.OnScrollListener.SCROLL_STATE_FLING) {
                // Before Honeycomb pause image loading on scroll to help with performance
                if (!Utils.hasHoneycomb()) {
                    mImageFetcher.setPauseWork(true);
                }
            } else {
                mImageFetcher.setPauseWork(false);
            }
        }

        @Override
        public void onScroll(AbsListView absListView, int firstVisibleItem, int visibleItemCount,
                int totalItemCount) {
        }
    });

    // This listener is used to get the final width of the GridView and then calculate the
    // number of columns and the width of each column. The width of each column is variable
    // as the GridView has stretchMode=columnWidth. The column width is used to set the height
    // of each view so we get nice square thumbnails.
    mGridView.getViewTreeObserver().addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
        @TargetApi(VERSION_CODES.JELLY_BEAN)
        @Override
        public void onGlobalLayout() {
            if (mAdapter.getNumColumns() == 0) {
                final int numColumns = (int) Math
                        .floor(mGridView.getWidth() / (mImageThumbSize + mImageThumbSpacing));
                if (numColumns > 0) {
                    final int columnWidth = (mGridView.getWidth() / numColumns) - mImageThumbSpacing;
                    mAdapter.setNumColumns(numColumns);
                    mAdapter.setItemHeight(columnWidth);
                    if (BuildConfig.DEBUG) {
                        Log.d(TAG, "onCreateView - numColumns set to " + numColumns);
                    }
                    if (Utils.hasJellyBean()) {
                        mGridView.getViewTreeObserver().removeOnGlobalLayoutListener(this);
                    } else {
                        mGridView.getViewTreeObserver().removeGlobalOnLayoutListener(this);
                    }
                }
            }
        }
    });

    return v;
}

---

From source file:com.volley.demo.SimpleCacheFragment.java

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {

    final View v = inflater.inflate(R.layout.image_grid_fragment, container, false);
    final GridView mGridView = (GridView) v.findViewById(R.id.gridView);
    mGridView.setAdapter(mAdapter);/*from ww  w  . j  ava 2  s . c om*/
    mGridView.setOnItemClickListener(this);
    mGridView.setOnScrollListener(new AbsListView.OnScrollListener() {
        @Override
        public void onScrollStateChanged(AbsListView absListView, int scrollState) {
            // Pause fetcher to ensure smoother scrolling when flinging
            if (scrollState == AbsListView.OnScrollListener.SCROLL_STATE_FLING) {
                // Before Honeycomb pause image loading on scroll to help
                // with performance
                if (!Utils.hasHoneycomb()) {
                    mImageLoader.stopProcessingQueue();
                }
            } else {
                mImageLoader.startProcessingQueue();
            }
        }

        @Override
        public void onScroll(AbsListView absListView, int firstVisibleItem, int visibleItemCount,
                int totalItemCount) {
        }
    });

    // This listener is used to get the final width of the GridView and then
    // calculate the
    // number of columns and the width of each column. The width of each
    // column is variable
    // as the GridView has stretchMode=columnWidth. The column width is used
    // to set the height
    // of each view so we get nice square thumbnails.
    mGridView.getViewTreeObserver().addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
        @TargetApi(Build.VERSION_CODES.JELLY_BEAN)
        @Override
        public void onGlobalLayout() {
            if (mAdapter.getNumColumns() == 0) {
                final int numColumns = (int) Math
                        .floor(mGridView.getWidth() / (mImageThumbSize + mImageThumbSpacing));
                if (numColumns > 0) {
                    final int columnWidth = (mGridView.getWidth() / numColumns) - mImageThumbSpacing;
                    mAdapter.setNumColumns(numColumns);
                    mAdapter.setItemHeight(columnWidth);
                    if (BuildConfig.DEBUG) {
                        Log.d(TAG, "onCreateView - numColumns set to " + numColumns);
                    }
                    if (Utils.hasJellyBean()) {
                        mGridView.getViewTreeObserver().removeOnGlobalLayoutListener(this);
                    } else {
                        mGridView.getViewTreeObserver().removeGlobalOnLayoutListener(this);
                    }
                }
            }
        }
    });

    return v;
}

---

From source file:mk.apps.soundblog.fragment.ImageGridFragment.java

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {

    final View v = inflater.inflate(R.layout.image_grid_fragment, container, false);
    final GridView mGridView = (GridView) v.findViewById(R.id.gridView);
    mGridView.setAdapter(mAdapter);//  w  w  w .  ja va2 s.  c o m
    mGridView.setOnItemClickListener(this);
    mGridView.setOnScrollListener(new AbsListView.OnScrollListener() {
        @Override
        public void onScrollStateChanged(AbsListView absListView, int scrollState) {
            // Pause fetcher to ensure smoother scrolling when flinging
            if (scrollState == AbsListView.OnScrollListener.SCROLL_STATE_FLING) {
                // Before Honeycomb pause image loading on scroll to help with performance
                if (!Utils.hasHoneycomb()) {
                    mImageFetcher.setPauseWork(true);
                }
            } else {
                mImageFetcher.setPauseWork(false);
            }
        }

        @Override
        public void onScroll(AbsListView absListView, int firstVisibleItem, int visibleItemCount,
                int totalItemCount) {
        }
    });

    // This listener is used to get the final width of the GridView and then calculate the
    // number of columns and the width of each column. The width of each column is variable
    // as the GridView has stretchMode=columnWidth. The column width is used to set the height
    // of each view so we get nice square thumbnails.
    mGridView.getViewTreeObserver().addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
        @TargetApi(VERSION_CODES.JELLY_BEAN)
        @Override
        public void onGlobalLayout() {
            if (mAdapter.getNumColumns() == 0) {
                //                            final int numColumns = (int) Math.floor(
                //                                    mGridView.getWidth() / (mImageThumbSize + mImageThumbSpacing));
                final int numColumns = 2;
                if (numColumns > 0) {
                    final int columnWidth = (mGridView.getWidth() / numColumns) - mImageThumbSpacing;
                    mAdapter.setNumColumns(numColumns);
                    mAdapter.setItemHeight(columnWidth);
                    if (BuildConfig.DEBUG) {
                        Log.d(TAG, "onCreateView - numColumns set to " + numColumns);
                    }
                    if (Utils.hasJellyBean()) {
                        mGridView.getViewTreeObserver().removeOnGlobalLayoutListener(this);
                    } else {
                        mGridView.getViewTreeObserver().removeGlobalOnLayoutListener(this);
                    }
                }
            }
        }
    });

    return v;
}

---

From source file:com.greendev.image.ImageGridFragment.java

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {

    final View v = inflater.inflate(R.layout.image_grid_fragment, container, false);
    final GridView mGridView = (GridView) v.findViewById(R.id.gridView);
    mGridView.setAdapter(mAdapter);/*from   w  w w .  j  av a2  s .c  o m*/
    mGridView.setOnItemClickListener(this);
    mGridView.setOnScrollListener(new AbsListView.OnScrollListener() {
        @Override
        public void onScrollStateChanged(AbsListView absListView, int scrollState) {
            // Pause fetcher to ensure smoother scrolling when flinging
            if (scrollState == AbsListView.OnScrollListener.SCROLL_STATE_FLING) {
                mImageFetcher.setPauseWork(true);
            } else {
                mImageFetcher.setPauseWork(false);
            }
        }

        @Override
        public void onScroll(AbsListView absListView, int firstVisibleItem, int visibleItemCount,
                int totalItemCount) {
        }
    });

    // This listener is used to get the final width of the GridView and then
    // calculate the
    // number of columns and the width of each column. The width of each
    // column is variable
    // as the GridView has stretchMode=columnWidth. The column width is used
    // to set the height
    // of each view so we get nice square thumbnails.
    mGridView.getViewTreeObserver().addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
        @Override
        public void onGlobalLayout() {
            if (mAdapter.getNumColumns() == 0) {
                final int numColumns = (int) Math
                        .floor(mGridView.getWidth() / (mImageThumbSize + mImageThumbSpacing));
                if (numColumns > 0) {
                    final int columnWidth = (mGridView.getWidth() / numColumns) - mImageThumbSpacing;
                    mAdapter.setNumColumns(numColumns);
                    mAdapter.setItemHeight(columnWidth);
                    if (BuildConfig.DEBUG) {
                        Log.d(TAG, "onCreateView - numColumns set to " + numColumns);
                    }
                }
            }
        }
    });

    return v;
}

---

From source file:com.brkc.traffic.ui.image.ImageGridFragment.java

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {

    final View v = inflater.inflate(R.layout.image_grid_fragment, container, false);
    final GridView mGridView = (GridView) v.findViewById(R.id.gridView);
    mGridView.setAdapter(mAdapter);/*from  w w w.  j  a  v a2  s.  co m*/
    mGridView.setOnItemClickListener(this);
    mGridView.setOnScrollListener(new AbsListView.OnScrollListener() {
        @Override
        public void onScrollStateChanged(AbsListView absListView, int scrollState) {
            // Pause fetcher to ensure smoother scrolling when flinging
            if (scrollState == AbsListView.OnScrollListener.SCROLL_STATE_FLING) {
                // Before Honeycomb pause image loading on scroll to help with performance
                if (!Utils.hasHoneycomb()) {
                    mImageFetcher.setPauseWork(true);
                }
            } else {
                mImageFetcher.setPauseWork(false);
            }
        }

        @Override
        public void onScroll(AbsListView absListView, int firstVisibleItem, int visibleItemCount,
                int totalItemCount) {
        }
    });

    // This listener is used to get the final width of the GridView and then calculate the
    // number of columns and the width of each column. The width of each column is variable
    // as the GridView has stretchMode=columnWidth. The column width is used to set the height
    // of each view so we get nice square thumbnails.
    mGridView.getViewTreeObserver().addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
        @TargetApi(VERSION_CODES.JELLY_BEAN)
        @Override
        public void onGlobalLayout() {
            if (mAdapter.getNumColumns() == 0) {
                int test = mGridView.getWidth() / (mImageThumbWidth + mImageThumbSpacing);
                final int numColumns = (int) Math.floor(test);
                if (numColumns > 0) {
                    int columnWidth = (mGridView.getWidth() / numColumns) - mImageThumbSpacing;
                    final int columnHeight = columnWidth * mImageThumbHeightPercent / 100;
                    mAdapter.setNumColumns(numColumns);
                    mAdapter.setItemHeight(columnHeight);

                    Log.d(TAG, "onCreateView - numColumns set to " + numColumns);

                    if (Utils.hasJellyBean()) {
                        mGridView.getViewTreeObserver().removeOnGlobalLayoutListener(this);
                    } else {
                        mGridView.getViewTreeObserver().removeGlobalOnLayoutListener(this);
                    }
                }
            }
        }
    });

    return v;
}

---

From source file:io.github.sunggu.searchimage.ui.ImageGridFragment.java

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {

    final View v = inflater.inflate(R.layout.image_search_fragment, container, false);

    edtSearchKeyword = (EditText) v.findViewById(R.id.search_keyword);
    edtSearchKeyword.addTextChangedListener(new TextWatcher() {
        @Override//from   w  w w  . j a va  2s.  co m
        public void beforeTextChanged(CharSequence s, int start, int count, int after) {

        }

        @Override
        public void onTextChanged(CharSequence s, int start, int before, int count) {

        }

        @Override
        public void afterTextChanged(Editable s) {
            OpenApi.getInstance().requestSearchImage(s.toString(), mResponseListener, mErrorListener);
        }
    });

    final GridView mGridView = (GridView) v.findViewById(R.id.search_result_grid);
    mGridView.setAdapter(mAdapter);
    mGridView.setOnItemClickListener(this);
    mGridView.setOnScrollListener(new AbsListView.OnScrollListener() {
        @Override
        public void onScrollStateChanged(AbsListView absListView, int scrollState) {
            // Pause fetcher to ensure smoother scrolling when flinging
            if (scrollState == AbsListView.OnScrollListener.SCROLL_STATE_FLING) {
                // Before Honeycomb pause image loading on scroll to help with performance
                if (!Utils.hasHoneycomb()) {
                    mImageFetcher.setPauseWork(true);
                }
            } else {
                mImageFetcher.setPauseWork(false);
            }
        }

        @Override
        public void onScroll(AbsListView absListView, int firstVisibleItem, int visibleItemCount,
                int totalItemCount) {
        }
    });

    // This listener is used to get the final width of the GridView and then calculate the
    // number of columns and the width of each column. The width of each column is variable
    // as the GridView has stretchMode=columnWidth. The column width is used to set the height
    // of each view so we get nice square thumbnails.
    mGridView.getViewTreeObserver().addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
        @TargetApi(VERSION_CODES.JELLY_BEAN)
        @Override
        public void onGlobalLayout() {
            if (mAdapter.getNumColumns() == 0) {
                final int numColumns = (int) Math
                        .floor(mGridView.getWidth() / (mImageThumbSize + mImageThumbSpacing));
                if (numColumns > 0) {
                    final int columnWidth = (mGridView.getWidth() / numColumns) - mImageThumbSpacing;
                    mAdapter.setNumColumns(numColumns);
                    mAdapter.setItemHeight(columnWidth);
                    if (BuildConfig.DEBUG) {
                        Log.d(TAG, "onCreateView - numColumns set to " + numColumns);
                    }
                    if (Utils.hasJellyBean()) {
                        mGridView.getViewTreeObserver().removeOnGlobalLayoutListener(this);
                    } else {
                        mGridView.getViewTreeObserver().removeGlobalOnLayoutListener(this);
                    }
                }
            }
        }
    });

    return v;
}

---

From source file:com.wulian.icam.view.album.AlbumGridFragment.java

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {

    final View v = inflater.inflate(R.layout.fragment_album_grid, container, false);
    (v.findViewById(R.id.titlebar_back)).setOnClickListener(new View.OnClickListener() {

        @Override/*from w  w  w. j  ava 2 s  .c o m*/
        public void onClick(View v) {
            AlbumGridFragment.this.getActivity().finish();
        }
    });
    ((TextView) v.findViewById(R.id.titlebar_title)).setText(mAlbumEntity.getDeviceName());
    final GridView mGridView = (GridView) v.findViewById(R.id.gridView);
    mGridView.setSelector(new ColorDrawable(Color.TRANSPARENT));
    mGridView.setAdapter(mAdapter);
    mGridView.setOnItemClickListener(this);
    mGridView.setOnScrollListener(new AbsListView.OnScrollListener() {
        @Override
        public void onScrollStateChanged(AbsListView absListView, int scrollState) {
            // Pause fetcher to ensure smoother scrolling when flinging
            if (scrollState == AbsListView.OnScrollListener.SCROLL_STATE_FLING) {
                // Before Honeycomb pause image loading on scroll to help
                // with performance
                if (!Utils.hasHoneycomb()) {
                    mImageResizer.setPauseWork(true);
                }
            } else {
                mImageResizer.setPauseWork(false);
            }
        }

        @Override
        public void onScroll(AbsListView absListView, int firstVisibleItem, int visibleItemCount,
                int totalItemCount) {
        }
    });

    // This listener is used to get the final width of the GridView and then
    // calculate the
    // number of columns and the width of each column. The width of each
    // column is variable
    // as the GridView has stretchMode=columnWidth. The column width is used
    // to set the height
    // of each view so we get nice square thumbnails.
    mGridView.getViewTreeObserver().addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
        @TargetApi(VERSION_CODES.JELLY_BEAN)
        @Override
        public void onGlobalLayout() {
            if (mAdapter.getNumColumns() == 0) {
                final int numColumns = (int) Math
                        .floor(mGridView.getWidth() / (mImageThumbSize + mImageThumbSpacing));
                if (numColumns > 0) {
                    final int columnWidth = (mGridView.getWidth() / numColumns) - mImageThumbSpacing;
                    mAdapter.setNumColumns(numColumns);
                    mAdapter.setItemHeight(columnWidth);
                    if (Utils.hasJellyBean()) {
                        mGridView.getViewTreeObserver().removeOnGlobalLayoutListener(this);
                    } else {
                        mGridView.getViewTreeObserver().removeGlobalOnLayoutListener(this);
                    }
                }
            }
        }
    });

    return v;
}

---

From source file:net.wespot.pim.view.InqImageGridFragment.java

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {

    final View v = inflater.inflate(R.layout.fragment_data_collect_grid, container, false);
    final GridView mGridView = (GridView) v.findViewById(R.id.gridView);
    mGridView.setAdapter(mAdapter);//w  w  w .  j ava 2s. c om
    mGridView.setOnItemClickListener(this);
    mGridView.setOnScrollListener(new AbsListView.OnScrollListener() {
        @Override
        public void onScrollStateChanged(AbsListView absListView, int scrollState) {
            // Pause fetcher to ensure smoother scrolling when flinging
            if (scrollState == AbsListView.OnScrollListener.SCROLL_STATE_FLING) {
                // Before Honeycomb pause image loading on scroll to help with performance
                if (!Utils.hasHoneycomb()) {
                    mImageFetcher.setPauseWork(true);
                }
            } else {
                mImageFetcher.setPauseWork(false);
            }
        }

        @Override
        public void onScroll(AbsListView absListView, int firstVisibleItem, int visibleItemCount,
                int totalItemCount) {
        }
    });

    // This listener is used to get the final width of the GridView and then calculate the
    // number of columns and the width of each column. The width of each column is variable
    // as the GridView has stretchMode=columnWidth. The column width is used to set the height
    // of each view so we get nice square thumbnails.
    mGridView.getViewTreeObserver().addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
        @TargetApi(VERSION_CODES.JELLY_BEAN)
        @Override
        public void onGlobalLayout() {
            if (mAdapter.getNumColumns() == 0) {
                final int numColumns = (int) Math
                        .floor(mGridView.getWidth() / (mImageThumbSize + mImageThumbSpacing));
                if (numColumns > 0) {
                    final int columnWidth = (mGridView.getWidth() / numColumns) - mImageThumbSpacing;
                    mAdapter.setNumColumns(numColumns);
                    mAdapter.setItemHeight(columnWidth);
                    if (BuildConfig.DEBUG) {
                        Log.d(TAG, "onCreateView - numColumns set to " + numColumns);
                    }
                    if (Utils.hasJellyBean()) {
                        mGridView.getViewTreeObserver().removeOnGlobalLayoutListener(this);
                    } else {
                        mGridView.getViewTreeObserver().removeGlobalOnLayoutListener(this);
                    }
                }
            }
        }
    });

    return v;
}

---

From source file:com.example.camera360.ui.ImageGridFragment.java

public void initializeGridView(boolean flag) {

    mFrameLayout.setVisibility(View.GONE);

    final GridView mGridView = (GridView) gridView.findViewById(R.id.gridView);

    if (flag) {/*w w  w. ja  v  a  2  s .co m*/
        mGridView.setOnItemClickListener(this);
        mGridView.setAdapter(mAdapter);
        mGridView.setOnScrollListener(new AbsListView.OnScrollListener() {
            @Override
            public void onScrollStateChanged(AbsListView absListView, int scrollState) {
                // Pause fetcher to ensure smoother scrolling when flinging
                if (scrollState == AbsListView.OnScrollListener.SCROLL_STATE_FLING) {
                    mImageFetcher.setPauseWork(true);
                } else {
                    mImageFetcher.setPauseWork(false);
                }
            }

            @Override
            public void onScroll(AbsListView absListView, int firstVisibleItem, int visibleItemCount,
                    int totalItemCount) {
            }
        });

        // This listener is used to get the final width of the GridView and then
        // calculate the
        // number of columns and the width of each column. The width of each
        // column is variable
        // as the GridView has stretchMode=columnWidth. The column width is used
        // to set the height
        // of each view so we get nice square thumbnails.
        mGridView.getViewTreeObserver()
                .addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
                    @Override
                    public void onGlobalLayout() {
                        if (mAdapter.getNumColumns() == 0) {
                            final int numColumns = (int) Math
                                    .floor(mGridView.getWidth() / (mImageThumbSize + mImageThumbSpacing));
                            if (numColumns > 0) {
                                final int columnWidth = (mGridView.getWidth() / numColumns)
                                        - mImageThumbSpacing;
                                mAdapter.setNumColumns(numColumns);
                                mAdapter.setItemHeight(columnWidth);
                                if (BuildConfig.DEBUG) {
                                    Log.d(TAG, "onCreateView - numColumns set to " + numColumns);
                                }
                            }
                        }
                    }
                });

        gridView.setOnHeaderRefreshListener(this);

        gridView.setOnFooterRefreshListener(this);
    } else {
        gridView.onFooterRefreshComplete();

        mAdapter.notifyDataSetChanged();
    }
}

---

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