@Override
public void onLoadFinished(Loader<Cursor> loader, Cursor data) {
if (data != null) {
List<Image> images = new ArrayList<>();
int count = data.getCount();
if (count > 0) {
data.moveToFirst();
do {
String path = data.getString(data.getColumnIndexOrThrow(IMAGE_PROJECTION[0]));
String name = data.getString(data.getColumnIndexOrThrow(IMAGE_PROJECTION[1]));
long dateTime = data.getLong(data.getColumnIndexOrThrow(IMAGE_PROJECTION[2]));
Image image = new Image(path, name, dateTime);
images.add(image);
if (!hasFolderGened) {
// 获取文件夹名称
File imageFile = new File(path);
File folderFile = imageFile.getParentFile();
Folder folder = new Folder();
folder.name = folderFile.getName();
folder.path = folderFile.getAbsolutePath();
folder.cover = image;
if (!mResultFolder.contains(folder)) {
List<Image> imageList = new ArrayList<>();
imageList.add(image);
folder.images = imageList;
mResultFolder.add(folder);
} else {
// 更新
Folder f = mResultFolder.get(mResultFolder.indexOf(folder));
f.images.add(image);
}
}
} while (data.moveToNext());
mImageAdapter.setData(images);
// 设定默认选择
if (resultList != null && resultList.size() > 0) {
mImageAdapter.setDefaultSelected(resultList);
}
mFolderAdapter.setData(mResultFolder);
hasFolderGened = true;
}
}
}
/**
* 选择图片操作
*
* @param image
*/
private void selectImageFromGrid(Image image, int mode) {
if (image != null) {
// 多选模式
if (mode == MODE_MULTI) {
if (resultList.contains(image.path)) {
resultList.remove(image.path);
if (resultList.size() != 0) {
mPreviewBtn.setEnabled(true);
mPreviewBtn.setText(
getResources().getString(R.string.preview) + "(" + resultList.size() + ")");
} else {
mPreviewBtn.setEnabled(false);
mPreviewBtn.setText(R.string.preview);
}
if (mCallback != null) {
mCallback.onImageUnselected(image.path);
}
} else {
// 判断选择数量问题
if (mDesireImageCount == resultList.size()) {
Toast.makeText(getActivity(), R.string.msg_amount_limit, Toast.LENGTH_SHORT).show();
return;
}
resultList.add(image.path);
mPreviewBtn.setEnabled(true);
mPreviewBtn.setText(
getResources().getString(R.string.preview) + "(" + resultList.size() + ")");
if (mCallback != null) {
mCallback.onImageSelected(image.path);
}
}
mImageAdapter.select(image);
} else if (mode == MODE_SINGLE) {
// 单选模式
if (mCallback != null) {
mCallback.onSingleImageSelected(image.path);
}
}
}
}
@Override
public void onViewCreated(View view, @Nullable Bundle savedInstanceState) {
super.onViewCreated(view, savedInstanceState);
bitmapUtils = BitmapHelper.getInstance();
// 选择图片数量
mDesireImageCount = getArguments().getInt(EXTRA_SELECT_COUNT);
// 图片选择模式
final int mode = getArguments().getInt(EXTRA_SELECT_MODE);
// 默认选择
if (mode == MODE_MULTI) {
ArrayList<String> tmp = getArguments().getStringArrayList(EXTRA_DEFAULT_SELECTED_LIST);
if (tmp != null && tmp.size() > 0) {
resultList = tmp;
}
}
// 是否显示照相机
mIsShowCamera = getArguments().getBoolean(EXTRA_SHOW_CAMERA, true);
mImageAdapter = new ImageGridAdapter(getActivity(), mIsShowCamera);
// 是否显示选择指示器
mImageAdapter.showSelectIndicator(mode == MODE_MULTI);
mPopupAnchorView = view.findViewById(R.id.footer);
mTimeLineText = (TextView) view.findViewById(R.id.timeline_area);
// 初始化，先隐藏当前timeline
mTimeLineText.setVisibility(View.GONE);
mCategoryText = (TextView) view.findViewById(R.id.category_btn);
// 初始化，加载所有图片
mCategoryText.setText(R.string.folder_all);
mCategoryText.setOnClickListener(
new View.OnClickListener() {
@Override
public void onClick(View view) {
if (mFolderPopupWindow == null) {
createPopupFolderList(mGridWidth, mGridHeight);
}
if (mFolderPopupWindow.isShowing()) {
mFolderPopupWindow.dismiss();
} else {
mFolderPopupWindow.show();
int index = mFolderAdapter.getSelectIndex();
index = index == 0 ? index : index - 1;
mFolderPopupWindow.getListView().setSelection(index);
}
}
});
mPreviewBtn = (Button) view.findViewById(R.id.preview);
// 初始化，按钮状态初始化
if (resultList == null || resultList.size() <= 0) {
mPreviewBtn.setText(R.string.preview);
mPreviewBtn.setEnabled(false);
}
mPreviewBtn.setOnClickListener(
new View.OnClickListener() {
@Override
public void onClick(View view) {
// TODO 预览
}
});
mGridView = (GridView) view.findViewById(R.id.grid);
mGridView.setOnScrollListener(new MyScrollListener(bitmapUtils, false, true));
mGridView.setAdapter(mImageAdapter);
mGridView
.getViewTreeObserver()
.addOnGlobalLayoutListener(
new ViewTreeObserver.OnGlobalLayoutListener() {
@Override
@TargetApi(Build.VERSION_CODES.JELLY_BEAN)
public void onGlobalLayout() {
final int width = mGridView.getWidth();
final int height = mGridView.getHeight();
mGridWidth = width;
mGridHeight = height;
final int desireSize = getResources().getDimensionPixelOffset(R.dimen.image_size);
final int numCount = width / desireSize;
final int columnSpace = getResources().getDimensionPixelOffset(R.dimen.space_size);
int columnWidth = (width - columnSpace * (numCount - 1)) / numCount;
mImageAdapter.setItemSize(columnWidth);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {
mGridView.getViewTreeObserver().removeOnGlobalLayoutListener(this);
} else {
mGridView.getViewTreeObserver().removeGlobalOnLayoutListener(this);
}
}
});
mGridView.setOnItemClickListener(
new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> adapterView, View view, int i, long l) {
if (mImageAdapter.isShowCamera()) {
// 如果显示照相机，则第一个Grid显示为照相机，处理特殊逻辑
if (i == 0) {
showCameraAction();
} else {
// 正常操作
Image image = (Image) adapterView.getAdapter().getItem(i);
selectImageFromGrid(image, mode);
}
} else {
// 正常操作
Image image = (Image) adapterView.getAdapter().getItem(i);
selectImageFromGrid(image, mode);
}
}
});
mFolderAdapter = new FolderAdapter(getActivity());
}