一个Android ViewGroup，实现了一个拖放移动项目的分页网格。支持 Android 2.2 (API 8) 以上。
用法：
定义一个适配器符合接口 PagedDragDropGridAdapter.java
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public interface PagedDragDropGridAdapter { // Automatic child distribution public final static int AUTOMATIC = -1; // Delete drop zone location TOP public final static int TOP = 1; // Delete drop zone location BOTTOM public final static int BOTTOM = 2; /** * Used to create the paging * * @return the page count */ public int pageCount(); /** * Returns the count of item in a page * * @param page index * @return item count for page */ public int itemCountInPage(int page); /** * Returns the view for the item in the page * * @param page index * @param item index * @return the view */ public View view(int page, int index); /** * The fixed row count (AUTOMATIC for automatic computing) * * @return row count or AUTOMATIC */ public int rowCount(); /** * The fixed column count (AUTOMATIC for automatic computing) * * @return column count or AUTOMATIC */ public int columnCount(); /** * Prints the layout in Log.d(); */ public void printLayout(); /** * Swaps two items in the item list in a page * * @param pageIndex * @param itemIndexA * @param itemIndexB */ public void swapItems(int pageIndex, int itemIndexA, int itemIndexB); /** * Moves an item in the page on the left of provided the page * * @param pageIndex * @param itemIndex */ public void moveItemToPreviousPage(int pageIndex, int itemIndex); /** * Moves an item in the page on the right of provided the page * * @param pageIndex * @param itemIndex */ public void moveItemToNextPage(int pageIndex, int itemIndex); /** * deletes the item in page and at position * * @param pageIndex * @param itemIndex */ public void deleteItem(int pageIndex, int itemIndex); /** * Returns the delete drop zone location. * * @return TOP or BOTTOM. */ public int deleteDropZoneLocation(); /** * Tells the grid to show or not the remove drop zone when moving an item */ public boolean showRemoveDropZone();} |
layout example.xml
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<ca.laplanete.mobile.pageddragdropgrid.PagedDragDropGrid xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/gridview" android:layout_width="fill_parent" android:layout_height="fill_parent"/> |
ExampleActivity.java
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setContentView(R.layout.example);PagedDragDropGrid gridview = (PagedDragDropGrid) findViewById(R.id.gridview); gridview.setAdapter(new ExamplePagedDragDropGridAdapter(this));/* Optionally set an onClickListener */gridview.setClickListener(this);/* Optionally set an setOnPageChangedListener */gridview.setOnPageChangedListener(new OnPageChangedListener() { @Override public void onPageChanged(PagedDragDropGrid sender, int newPageNumber) { Toast.makeText(ExampleActivity.this, "Page changed to page " + newPageNumber, Toast.LENGTH_SHORT).show(); } }); |
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