| /* |
| * Copyright (C) 2015 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.android.documentsui; |
| |
| import static com.android.documentsui.Shared.DEBUG; |
| import static com.android.documentsui.dirlist.DirectoryFragment.ANIM_DOWN; |
| import static com.android.documentsui.dirlist.DirectoryFragment.ANIM_NONE; |
| import static com.android.documentsui.dirlist.DirectoryFragment.ANIM_SIDE; |
| import static com.android.documentsui.dirlist.DirectoryFragment.ANIM_UP; |
| import static com.android.internal.util.Preconditions.checkArgument; |
| |
| import android.app.Activity; |
| import android.app.Fragment; |
| import android.content.Intent; |
| import android.content.pm.ApplicationInfo; |
| import android.content.pm.PackageInfo; |
| import android.content.pm.PackageManager; |
| import android.content.pm.ProviderInfo; |
| import android.database.Cursor; |
| import android.net.Uri; |
| import android.os.AsyncTask; |
| import android.os.Bundle; |
| import android.provider.DocumentsContract; |
| import android.provider.DocumentsContract.Root; |
| import android.support.annotation.LayoutRes; |
| import android.support.annotation.Nullable; |
| import android.util.Log; |
| import android.view.LayoutInflater; |
| import android.view.Menu; |
| import android.view.MenuItem; |
| import android.view.View; |
| import android.view.ViewGroup; |
| import android.widget.AdapterView; |
| import android.widget.AdapterView.OnItemSelectedListener; |
| import android.widget.BaseAdapter; |
| import android.widget.ImageView; |
| import android.widget.TextView; |
| |
| import com.android.documentsui.RecentsProvider.ResumeColumns; |
| import com.android.documentsui.SearchManager; |
| import com.android.documentsui.SearchManager.SearchManagerListener; |
| import com.android.documentsui.dirlist.DirectoryFragment; |
| import com.android.documentsui.model.DocumentInfo; |
| import com.android.documentsui.model.DocumentStack; |
| import com.android.documentsui.model.DurableUtils; |
| import com.android.documentsui.model.RootInfo; |
| import com.android.internal.util.Preconditions; |
| |
| import libcore.io.IoUtils; |
| |
| import java.io.FileNotFoundException; |
| import java.io.IOException; |
| import java.util.ArrayList; |
| import java.util.Collection; |
| import java.util.List; |
| import java.util.concurrent.Executor; |
| |
| public abstract class BaseActivity extends Activity implements SearchManagerListener { |
| |
| static final String EXTRA_STATE = "state"; |
| |
| State mState; |
| RootsCache mRoots; |
| SearchManager mSearchManager; |
| DrawerController mDrawer; |
| boolean mProductivityDevice; |
| |
| private final String mTag; |
| @LayoutRes |
| private int mLayoutId; |
| private DirectoryContainerView mDirectoryContainer; |
| |
| public abstract void onDocumentPicked(DocumentInfo doc, @Nullable SiblingProvider siblings); |
| public abstract void onDocumentsPicked(List<DocumentInfo> docs); |
| |
| abstract void onTaskFinished(Uri... uris); |
| abstract void refreshDirectory(int anim); |
| abstract void updateActionBar(); |
| abstract void saveStackBlocking(); |
| abstract State buildState(); |
| |
| public BaseActivity(@LayoutRes int layoutId, String tag) { |
| mLayoutId = layoutId; |
| mTag = tag; |
| } |
| |
| @Override |
| public void onCreate(Bundle icicle) { |
| super.onCreate(icicle); |
| |
| mProductivityDevice = getResources().getBoolean(R.bool.productivity_device); |
| mState = (icicle != null) |
| ? icicle.<State>getParcelable(EXTRA_STATE) |
| : buildState(); |
| |
| setContentView(mLayoutId); |
| |
| mRoots = DocumentsApplication.getRootsCache(this); |
| mRoots.setOnCacheUpdateListener( |
| new RootsCache.OnCacheUpdateListener() { |
| @Override |
| public void onCacheUpdate() { |
| new HandleRootsChangedTask().execute(getCurrentRoot()); |
| } |
| }); |
| mDirectoryContainer = (DirectoryContainerView) findViewById(R.id.container_directory); |
| mSearchManager = new SearchManager(this); |
| |
| // Base classes must update result in their onCreate. |
| setResult(Activity.RESULT_CANCELED); |
| } |
| |
| @Override |
| public boolean onCreateOptionsMenu(Menu menu) { |
| boolean showMenu = super.onCreateOptionsMenu(menu); |
| |
| getMenuInflater().inflate(R.menu.activity, menu); |
| mSearchManager.install((DocumentsToolBar) findViewById(R.id.toolbar)); |
| |
| return showMenu; |
| } |
| |
| @Override |
| public boolean onPrepareOptionsMenu(Menu menu) { |
| super.onPrepareOptionsMenu(menu); |
| |
| final RootInfo root = getCurrentRoot(); |
| final boolean inRecents = getCurrentDirectory() == null; |
| |
| final MenuItem sort = menu.findItem(R.id.menu_sort); |
| final MenuItem sortSize = menu.findItem(R.id.menu_sort_size); |
| final MenuItem grid = menu.findItem(R.id.menu_grid); |
| final MenuItem list = menu.findItem(R.id.menu_list); |
| final MenuItem advanced = menu.findItem(R.id.menu_advanced); |
| final MenuItem fileSize = menu.findItem(R.id.menu_file_size); |
| final MenuItem settings = menu.findItem(R.id.menu_settings); |
| |
| // I'm thinkin' this isn't necesary here. If it is...'cuz of a bug.... |
| // then uncomment the linke and let's get a proper bug reference here. |
| // mSearchManager.update(root); |
| |
| // Search uses backend ranking; no sorting |
| sort.setVisible(!inRecents && !mSearchManager.isSearching()); |
| |
| // grid/list is effectively a toggle. |
| grid.setVisible(mState.derivedMode != State.MODE_GRID); |
| list.setVisible(mState.derivedMode != State.MODE_LIST); |
| |
| sortSize.setVisible(mState.showSize); // Only sort by size when visible |
| fileSize.setVisible(!mState.forceSize); |
| advanced.setVisible(!mState.forceAdvanced); |
| settings.setVisible((root.flags & Root.FLAG_HAS_SETTINGS) != 0); |
| |
| advanced.setTitle(LocalPreferences.getDisplayAdvancedDevices(this) |
| ? R.string.menu_advanced_hide : R.string.menu_advanced_show); |
| fileSize.setTitle(LocalPreferences.getDisplayFileSize(this) |
| ? R.string.menu_file_size_hide : R.string.menu_file_size_show); |
| |
| return true; |
| } |
| |
| @Override |
| protected void onDestroy() { |
| mRoots.setOnCacheUpdateListener(null); |
| super.onDestroy(); |
| } |
| |
| State buildDefaultState() { |
| State state = new State(); |
| |
| final Intent intent = getIntent(); |
| |
| state.localOnly = intent.getBooleanExtra(Intent.EXTRA_LOCAL_ONLY, false); |
| |
| state.forceSize = intent.getBooleanExtra(DocumentsContract.EXTRA_SHOW_FILESIZE, false); |
| state.showSize = state.forceSize || LocalPreferences.getDisplayFileSize(this); |
| |
| state.forceAdvanced = intent.getBooleanExtra(DocumentsContract.EXTRA_SHOW_ADVANCED, false); |
| state.showAdvanced = state.forceAdvanced |
| || LocalPreferences.getDisplayAdvancedDevices(this); |
| |
| state.initAcceptMimes(intent); |
| state.excludedAuthorities = getExcludedAuthorities(); |
| |
| return state; |
| } |
| |
| void onStackRestored(boolean restored, boolean external) {} |
| |
| void onRootPicked(RootInfo root) { |
| // Clear entire backstack and start in new root |
| mState.onRootChanged(root); |
| mSearchManager.update(root); |
| |
| // Recents is always in memory, so we just load it directly. |
| // Otherwise we delegate loading data from disk to a task |
| // to ensure a responsive ui. |
| if (mRoots.isRecentsRoot(root)) { |
| refreshCurrentRootAndDirectory(ANIM_SIDE); |
| } else { |
| new PickRootTask(root, true).executeOnExecutor(getExecutorForCurrentDirectory()); |
| } |
| } |
| |
| void expandMenus(Menu menu) { |
| for (int i = 0; i < menu.size(); i++) { |
| final MenuItem item = menu.getItem(i); |
| switch (item.getItemId()) { |
| case R.id.menu_advanced: |
| case R.id.menu_file_size: |
| case R.id.menu_new_window: |
| case R.id.menu_search: |
| break; |
| default: |
| item.setShowAsAction(MenuItem.SHOW_AS_ACTION_ALWAYS); |
| } |
| } |
| } |
| |
| @Override |
| public boolean onOptionsItemSelected(MenuItem item) { |
| |
| switch (item.getItemId()) { |
| case android.R.id.home: |
| onBackPressed(); |
| return true; |
| |
| case R.id.menu_create_dir: |
| showCreateDirectoryDialog(); |
| return true; |
| |
| case R.id.menu_search: |
| return false; |
| |
| case R.id.menu_sort_name: |
| setUserSortOrder(State.SORT_ORDER_DISPLAY_NAME); |
| return true; |
| |
| case R.id.menu_sort_date: |
| setUserSortOrder(State.SORT_ORDER_LAST_MODIFIED); |
| return true; |
| case R.id.menu_sort_size: |
| setUserSortOrder(State.SORT_ORDER_SIZE); |
| return true; |
| |
| case R.id.menu_grid: |
| setUserMode(State.MODE_GRID); |
| return true; |
| |
| case R.id.menu_list: |
| setUserMode(State.MODE_LIST); |
| return true; |
| |
| case R.id.menu_paste_from_clipboard: |
| DirectoryFragment.get(getFragmentManager()) |
| .pasteFromClipboard(); |
| return true; |
| |
| case R.id.menu_advanced: |
| setDisplayAdvancedDevices(!LocalPreferences.getDisplayAdvancedDevices(this)); |
| return true; |
| |
| case R.id.menu_file_size: |
| setDisplayFileSize(!LocalPreferences.getDisplayFileSize(this)); |
| return true; |
| |
| case R.id.menu_settings: |
| final RootInfo root = getCurrentRoot(); |
| final Intent intent = new Intent(DocumentsContract.ACTION_DOCUMENT_ROOT_SETTINGS); |
| intent.setDataAndType(root.getUri(), DocumentsContract.Root.MIME_TYPE_ITEM); |
| startActivity(intent); |
| return true; |
| |
| default: |
| return super.onOptionsItemSelected(item); |
| } |
| } |
| |
| void showCreateDirectoryDialog() { |
| CreateDirectoryFragment.show(getFragmentManager()); |
| } |
| |
| /** |
| * Returns true if a directory can be created in the current location. |
| * @return |
| */ |
| boolean canCreateDirectory() { |
| final RootInfo root = getCurrentRoot(); |
| final DocumentInfo cwd = getCurrentDirectory(); |
| return cwd != null |
| && cwd.isCreateSupported() |
| && !mSearchManager.isSearching() |
| && !root.isRecents() |
| && !root.isDownloads(); |
| } |
| |
| void onDirectoryCreated(DocumentInfo doc) { |
| checkArgument(doc.isDirectory()); |
| openContainerDocument(doc); |
| } |
| |
| void openContainerDocument(DocumentInfo doc) { |
| checkArgument(doc.isContainer()); |
| mState.pushDocument(doc); |
| refreshCurrentRootAndDirectory(ANIM_DOWN); |
| } |
| |
| /** |
| * Refreshes the content of the director and the menu/action bar. |
| * The current directory name and selection will get updated. |
| * @param anim |
| */ |
| final void refreshCurrentRootAndDirectory(int anim) { |
| mSearchManager.cancelSearch(); |
| |
| mDirectoryContainer.setDrawDisappearingFirst(anim == ANIM_DOWN); |
| refreshDirectory(anim); |
| |
| final RootsFragment roots = RootsFragment.get(getFragmentManager()); |
| if (roots != null) { |
| roots.onCurrentRootChanged(); |
| } |
| |
| updateActionBar(); |
| |
| invalidateOptionsMenu(); |
| } |
| |
| /** |
| * Called when search results changed. |
| * Refreshes the content of the directory. It doesn't refresh elements on the action bar. |
| * e.g. The current directory name displayed on the action bar won't get updated. |
| */ |
| @Override |
| public void onSearchChanged() { |
| mDirectoryContainer.setDrawDisappearingFirst(false); |
| refreshDirectory(ANIM_NONE); |
| } |
| |
| /** |
| * Called when search query changed. |
| * Updates the state object. |
| * @param query - New query |
| */ |
| @Override |
| public void onSearchQueryChanged(String query) { |
| mState.currentSearch = query; |
| } |
| |
| final List<String> getExcludedAuthorities() { |
| List<String> authorities = new ArrayList<>(); |
| if (getIntent().getBooleanExtra(DocumentsContract.EXTRA_EXCLUDE_SELF, false)) { |
| // Exclude roots provided by the calling package. |
| String packageName = getCallingPackageMaybeExtra(); |
| try { |
| PackageInfo pkgInfo = getPackageManager().getPackageInfo(packageName, |
| PackageManager.GET_PROVIDERS); |
| for (ProviderInfo provider: pkgInfo.providers) { |
| authorities.add(provider.authority); |
| } |
| } catch (PackageManager.NameNotFoundException e) { |
| Log.e(mTag, "Calling package name does not resolve: " + packageName); |
| } |
| } |
| return authorities; |
| } |
| |
| final String getCallingPackageMaybeExtra() { |
| String callingPackage = getCallingPackage(); |
| // System apps can set the calling package name using an extra. |
| try { |
| ApplicationInfo info = getPackageManager().getApplicationInfo(callingPackage, 0); |
| if (info.isSystemApp() || info.isUpdatedSystemApp()) { |
| final String extra = getIntent().getStringExtra(DocumentsContract.EXTRA_PACKAGE_NAME); |
| if (extra != null) { |
| callingPackage = extra; |
| } |
| } |
| } finally { |
| return callingPackage; |
| } |
| } |
| |
| public static BaseActivity get(Fragment fragment) { |
| return (BaseActivity) fragment.getActivity(); |
| } |
| |
| public State getDisplayState() { |
| return mState; |
| } |
| |
| void setDisplayAdvancedDevices(boolean display) { |
| LocalPreferences.setDisplayAdvancedDevices(this, display); |
| mState.showAdvanced = mState.forceAdvanced | display; |
| RootsFragment.get(getFragmentManager()).onDisplayStateChanged(); |
| invalidateOptionsMenu(); |
| } |
| |
| void setDisplayFileSize(boolean display) { |
| LocalPreferences.setDisplayFileSize(this, display); |
| mState.showSize = display; |
| DirectoryFragment.get(getFragmentManager()).onDisplayStateChanged(); |
| invalidateOptionsMenu(); |
| } |
| |
| public void onStateChanged() { |
| invalidateOptionsMenu(); |
| } |
| |
| /** |
| * Set state sort order based on explicit user action. |
| */ |
| void setUserSortOrder(int sortOrder) { |
| mState.userSortOrder = sortOrder; |
| DirectoryFragment.get(getFragmentManager()).onUserSortOrderChanged(); |
| } |
| |
| /** |
| * Set state mode based on explicit user action. |
| */ |
| void setUserMode(int mode) { |
| mState.userMode = mode; |
| DirectoryFragment.get(getFragmentManager()).onUserModeChanged(); |
| } |
| |
| void setPending(boolean pending) { |
| final SaveFragment save = SaveFragment.get(getFragmentManager()); |
| if (save != null) { |
| save.setPending(pending); |
| } |
| } |
| |
| @Override |
| protected void onSaveInstanceState(Bundle state) { |
| super.onSaveInstanceState(state); |
| state.putParcelable(EXTRA_STATE, mState); |
| } |
| |
| @Override |
| protected void onRestoreInstanceState(Bundle state) { |
| super.onRestoreInstanceState(state); |
| } |
| |
| public RootInfo getCurrentRoot() { |
| if (mState.stack.root != null) { |
| return mState.stack.root; |
| } else { |
| return mRoots.getRecentsRoot(); |
| } |
| } |
| |
| public DocumentInfo getCurrentDirectory() { |
| return mState.stack.peek(); |
| } |
| |
| public Executor getExecutorForCurrentDirectory() { |
| final DocumentInfo cwd = getCurrentDirectory(); |
| if (cwd != null && cwd.authority != null) { |
| return ProviderExecutor.forAuthority(cwd.authority); |
| } else { |
| return AsyncTask.THREAD_POOL_EXECUTOR; |
| } |
| } |
| |
| @Override |
| public void onBackPressed() { |
| // While action bar is expanded, the state stack UI is hidden. |
| if (mSearchManager.cancelSearch()) { |
| return; |
| } |
| |
| if (!mState.hasLocationChanged()) { |
| super.onBackPressed(); |
| return; |
| } |
| |
| final int size = mState.stack.size(); |
| |
| if (mDrawer.isOpen()) { |
| mDrawer.setOpen(false); |
| } else if (size > 1) { |
| mState.stack.pop(); |
| refreshCurrentRootAndDirectory(ANIM_UP); |
| } else { |
| super.onBackPressed(); |
| } |
| } |
| |
| public void onStackPicked(DocumentStack stack) { |
| try { |
| // Update the restored stack to ensure we have freshest data |
| stack.updateDocuments(getContentResolver()); |
| mState.setStack(stack); |
| refreshCurrentRootAndDirectory(ANIM_SIDE); |
| |
| } catch (FileNotFoundException e) { |
| Log.w(mTag, "Failed to restore stack: " + e); |
| } |
| } |
| |
| private DocumentInfo getRootDocumentBlocking(RootInfo root) { |
| try { |
| final Uri uri = DocumentsContract.buildDocumentUri( |
| root.authority, root.documentId); |
| return DocumentInfo.fromUri(getContentResolver(), uri); |
| } catch (FileNotFoundException e) { |
| Log.w(mTag, "Failed to find root", e); |
| return null; |
| } |
| } |
| |
| final class PickRootTask extends AsyncTask<Void, Void, DocumentInfo> { |
| private RootInfo mRoot; |
| private boolean mTouched; |
| |
| public PickRootTask(RootInfo root, boolean touched) { |
| mRoot = root; |
| mTouched = touched; |
| } |
| |
| @Override |
| protected DocumentInfo doInBackground(Void... params) { |
| return getRootDocumentBlocking(mRoot); |
| } |
| |
| @Override |
| protected void onPostExecute(DocumentInfo result) { |
| if (result != null && !isDestroyed()) { |
| openContainerDocument(result); |
| } |
| } |
| } |
| |
| final class RestoreStackTask extends AsyncTask<Void, Void, Void> { |
| private volatile boolean mRestoredStack; |
| private volatile boolean mExternal; |
| |
| @Override |
| protected Void doInBackground(Void... params) { |
| if (DEBUG && !mState.stack.isEmpty()) { |
| Log.w(mTag, "Overwriting existing stack."); |
| } |
| RootsCache roots = DocumentsApplication.getRootsCache(BaseActivity.this); |
| |
| // Restore last stack for calling package |
| final String packageName = getCallingPackageMaybeExtra(); |
| final Cursor cursor = getContentResolver() |
| .query(RecentsProvider.buildResume(packageName), null, null, null, null); |
| try { |
| if (cursor.moveToFirst()) { |
| mExternal = cursor.getInt(cursor.getColumnIndex(ResumeColumns.EXTERNAL)) != 0; |
| final byte[] rawStack = cursor.getBlob( |
| cursor.getColumnIndex(ResumeColumns.STACK)); |
| DurableUtils.readFromArray(rawStack, mState.stack); |
| mRestoredStack = true; |
| } |
| } catch (IOException e) { |
| Log.w(mTag, "Failed to resume: " + e); |
| } finally { |
| IoUtils.closeQuietly(cursor); |
| } |
| |
| if (mRestoredStack) { |
| // Update the restored stack to ensure we have freshest data |
| final Collection<RootInfo> matchingRoots = roots.getMatchingRootsBlocking(mState); |
| try { |
| mState.stack.updateRoot(matchingRoots); |
| mState.stack.updateDocuments(getContentResolver()); |
| } catch (FileNotFoundException e) { |
| Log.w(mTag, "Failed to restore stack: " + e); |
| mState.stack.reset(); |
| mRestoredStack = false; |
| } |
| } |
| |
| return null; |
| } |
| |
| @Override |
| protected void onPostExecute(Void result) { |
| if (isDestroyed()) return; |
| mState.restored = true; |
| refreshCurrentRootAndDirectory(ANIM_NONE); |
| onStackRestored(mRestoredStack, mExternal); |
| } |
| } |
| |
| final class RestoreRootTask extends AsyncTask<Void, Void, RootInfo> { |
| private Uri mRootUri; |
| |
| public RestoreRootTask(Uri rootUri) { |
| mRootUri = rootUri; |
| } |
| |
| @Override |
| protected RootInfo doInBackground(Void... params) { |
| final String rootId = DocumentsContract.getRootId(mRootUri); |
| return mRoots.getRootOneshot(mRootUri.getAuthority(), rootId); |
| } |
| |
| @Override |
| protected void onPostExecute(RootInfo root) { |
| if (isDestroyed()) return; |
| mState.restored = true; |
| |
| if (root != null) { |
| onRootPicked(root); |
| } else { |
| Log.w(mTag, "Failed to find root: " + mRootUri); |
| finish(); |
| } |
| } |
| } |
| |
| final class HandleRootsChangedTask extends AsyncTask<RootInfo, Void, RootInfo> { |
| DocumentInfo mHome; |
| |
| @Override |
| protected RootInfo doInBackground(RootInfo... roots) { |
| checkArgument(roots.length == 1); |
| final RootInfo currentRoot = roots[0]; |
| final Collection<RootInfo> cachedRoots = mRoots.getRootsBlocking(); |
| RootInfo homeRoot = null; |
| for (final RootInfo root : cachedRoots) { |
| if (root.isHome()) { |
| homeRoot = root; |
| } |
| if (root.getUri().equals(currentRoot.getUri())) { |
| // We don't need to change the current root as the current root was not removed. |
| return null; |
| } |
| } |
| Preconditions.checkNotNull(homeRoot); |
| mHome = getRootDocumentBlocking(homeRoot); |
| return homeRoot; |
| } |
| |
| @Override |
| protected void onPostExecute(RootInfo homeRoot) { |
| if (homeRoot != null && mHome != null && !isDestroyed()) { |
| // Clear entire backstack and start in new root |
| mState.onRootChanged(homeRoot); |
| mSearchManager.update(homeRoot); |
| openContainerDocument(mHome); |
| } |
| } |
| } |
| |
| final class ItemSelectedListener implements OnItemSelectedListener { |
| |
| boolean mIgnoreNextNavigation; |
| |
| @Override |
| public void onItemSelected(AdapterView<?> parent, View view, int position, long id) { |
| if (mIgnoreNextNavigation) { |
| mIgnoreNextNavigation = false; |
| return; |
| } |
| |
| while (mState.stack.size() > position + 1) { |
| mState.popDocument(); |
| } |
| refreshCurrentRootAndDirectory(ANIM_UP); |
| } |
| |
| @Override |
| public void onNothingSelected(AdapterView<?> parent) { |
| // Ignored |
| } |
| } |
| |
| /** |
| * Class providing toolbar with runtime access to useful activity data. |
| */ |
| final class StackAdapter extends BaseAdapter { |
| @Override |
| public int getCount() { |
| return mState.stack.size(); |
| } |
| |
| @Override |
| public DocumentInfo getItem(int position) { |
| return mState.stack.get(mState.stack.size() - position - 1); |
| } |
| |
| @Override |
| public long getItemId(int position) { |
| return position; |
| } |
| |
| @Override |
| public View getView(int position, View convertView, ViewGroup parent) { |
| if (convertView == null) { |
| convertView = LayoutInflater.from(parent.getContext()) |
| .inflate(R.layout.item_subdir_title, parent, false); |
| } |
| |
| final TextView title = (TextView) convertView.findViewById(android.R.id.title); |
| final DocumentInfo doc = getItem(position); |
| |
| if (position == 0) { |
| final RootInfo root = getCurrentRoot(); |
| title.setText(root.title); |
| } else { |
| title.setText(doc.displayName); |
| } |
| |
| return convertView; |
| } |
| |
| @Override |
| public View getDropDownView(int position, View convertView, ViewGroup parent) { |
| if (convertView == null) { |
| convertView = LayoutInflater.from(parent.getContext()) |
| .inflate(R.layout.item_subdir, parent, false); |
| } |
| |
| final ImageView subdir = (ImageView) convertView.findViewById(R.id.subdir); |
| final TextView title = (TextView) convertView.findViewById(android.R.id.title); |
| final DocumentInfo doc = getItem(position); |
| |
| if (position == 0) { |
| final RootInfo root = getCurrentRoot(); |
| title.setText(root.title); |
| subdir.setVisibility(View.GONE); |
| } else { |
| title.setText(doc.displayName); |
| subdir.setVisibility(View.VISIBLE); |
| } |
| |
| return convertView; |
| } |
| } |
| |
| /** |
| * Interface providing access to current view of documents |
| * even when all documents are not homed to the same parent. |
| */ |
| public interface SiblingProvider { |
| /** |
| * Returns the cursor for the selected document. The cursor can be used to retrieve |
| * details about a document and its siblings. |
| * @return |
| */ |
| Cursor getCursor(); |
| } |
| } |