Show loading, error, and info messages as footers. (20b3227e) · Commits · e / os / android_packages_apps_DocumentsUI

res/layout/item_loading.xml

0 → 100644

+34 −0

Original line number	Diff line number	Diff line
		<?xml version="1.0" encoding="utf-8"?>
		<!-- Copyright (C) 2013 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.
		-->

		<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
		android:layout_width="match_parent"
		android:layout_height="wrap_content"
		android:minHeight="?android:attr/listPreferredItemHeight"
		android:paddingStart="?android:attr/listPreferredItemPaddingStart"
		android:paddingEnd="?android:attr/listPreferredItemPaddingEnd"
		android:paddingTop="8dip"
		android:paddingBottom="8dip"
		android:orientation="horizontal">

		<ProgressBar
		android:layout_width="wrap_content"
		android:layout_height="wrap_content"
		android:layout_gravity="center"
		android:indeterminate="true"
		style="?android:attr/progressBarStyle" />

		</FrameLayout>

res/layout/item_message_grid.xml

0 → 100644

+59 −0

Original line number	Diff line number	Diff line
		<?xml version="1.0" encoding="utf-8"?>
		<!-- Copyright (C) 2013 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.
		-->

		<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
		android:layout_width="match_parent"
		android:layout_height="180dip"
		android:paddingBottom="?android:attr/listPreferredItemPaddingEnd"
		android:paddingEnd="?android:attr/listPreferredItemPaddingEnd">

		<FrameLayout
		android:layout_width="match_parent"
		android:layout_height="match_parent"
		android:background="@color/chip"
		android:foreground="@drawable/item_background"
		android:duplicateParentState="true">

		<LinearLayout
		android:layout_width="match_parent"
		android:layout_height="match_parent"
		android:paddingBottom="6dp"
		android:orientation="vertical"
		android:gravity="center">

		<ImageView
		android:id="@android:id/icon"
		android:layout_width="wrap_content"
		android:layout_height="wrap_content"
		android:contentDescription="@null" />

		<TextView
		android:id="@android:id/title"
		android:layout_width="wrap_content"
		android:layout_height="wrap_content"
		android:singleLine="true"
		android:ellipsize="marquee"
		android:paddingTop="6dp"
		android:paddingStart="?android:attr/listPreferredItemPaddingStart"
		android:paddingEnd="?android:attr/listPreferredItemPaddingEnd"
		android:textAppearance="?android:attr/textAppearanceSmall"
		android:textAlignment="viewStart" />

		</LinearLayout>

		</FrameLayout>

		</FrameLayout>

res/layout/item_message_list.xml

0 → 100644

+47 −0

Original line number	Diff line number	Diff line
		<?xml version="1.0" encoding="utf-8"?>
		<!-- Copyright (C) 2013 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.
		-->

		<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
		android:layout_width="match_parent"
		android:layout_height="wrap_content"
		android:background="@drawable/item_background"
		android:minHeight="?android:attr/listPreferredItemHeight"
		android:paddingStart="?android:attr/listPreferredItemPaddingStart"
		android:paddingEnd="?android:attr/listPreferredItemPaddingEnd"
		android:paddingTop="8dip"
		android:paddingBottom="8dip"
		android:orientation="horizontal">

		<ImageView
		android:id="@android:id/icon"
		android:layout_width="@android:dimen/app_icon_size"
		android:layout_height="@android:dimen/app_icon_size"
		android:layout_marginEnd="8dip"
		android:layout_gravity="center_vertical"
		android:scaleType="centerInside"
		android:contentDescription="@null" />

		<TextView
		android:id="@android:id/title"
		android:layout_width="match_parent"
		android:layout_height="wrap_content"
		android:layout_gravity="center_vertical"
		android:singleLine="true"
		android:ellipsize="marquee"
		android:textAppearance="?android:attr/textAppearanceMedium"
		android:textAlignment="viewStart" />

		</LinearLayout>

src/com/android/documentsui/DirectoryFragment.java

+105 −3

Original line number	Diff line number	Diff line
		@@ -412,11 +412,83 @@ public class DirectoryFragment extends Fragment {
		return ((DocumentsActivity) fragment.getActivity()).getDisplayState();
		}

		private interface Footer {
		public View getView(View convertView, ViewGroup parent);
		}

		private static class LoadingFooter implements Footer {
		@Override
		public View getView(View convertView, ViewGroup parent) {
		final Context context = parent.getContext();
		if (convertView == null) {
		final LayoutInflater inflater = LayoutInflater.from(context);
		convertView = inflater.inflate(R.layout.item_loading, parent, false);
		}
		return convertView;
		}
		}

		private class MessageFooter implements Footer {
		private final int mIcon;
		private final String mMessage;

		public MessageFooter(int icon, String message) {
		mIcon = icon;
		mMessage = message;
		}

		@Override
		public View getView(View convertView, ViewGroup parent) {
		final Context context = parent.getContext();
		final State state = getDisplayState(DirectoryFragment.this);

		if (convertView == null) {
		final LayoutInflater inflater = LayoutInflater.from(context);
		if (state.mode == MODE_LIST) {
		convertView = inflater.inflate(R.layout.item_message_list, parent, false);
		} else if (state.mode == MODE_GRID) {
		convertView = inflater.inflate(R.layout.item_message_grid, parent, false);
		} else {
		throw new IllegalStateException();
		}
		}

		final ImageView icon = (ImageView) convertView.findViewById(android.R.id.icon);
		final TextView title = (TextView) convertView.findViewById(android.R.id.title);
		icon.setImageResource(mIcon);
		title.setText(mMessage);
		return convertView;
		}
		}

		private class DocumentsAdapter extends BaseAdapter {
		private Cursor mCursor;
		private int mCursorCount;

		private List<Footer> mFooters = Lists.newArrayList();

		public void swapCursor(Cursor cursor) {
		mCursor = cursor;
		mCursorCount = cursor != null ? cursor.getCount() : 0;

		mFooters.clear();

		final Bundle extras = cursor != null ? cursor.getExtras() : null;
		if (extras != null) {
		final String info = extras.getString(DocumentsContract.EXTRA_INFO);
		if (info != null) {
		mFooters.add(new MessageFooter(
		com.android.internal.R.drawable.ic_menu_info_details, info));
		}
		final String error = extras.getString(DocumentsContract.EXTRA_ERROR);
		if (error != null) {
		mFooters.add(new MessageFooter(
		com.android.internal.R.drawable.ic_dialog_alert, error));
		}
		if (extras.getBoolean(DocumentsContract.EXTRA_LOADING, false)) {
		mFooters.add(new LoadingFooter());
		}
		}

		if (isEmpty()) {
		mEmptyView.setVisibility(View.VISIBLE);
		@@ -429,6 +501,15 @@ public class DirectoryFragment extends Fragment {

		@Override
		public View getView(int position, View convertView, ViewGroup parent) {
		if (position < mCursorCount) {
		return getDocumentView(position, convertView, parent);
		} else {
		position -= mCursorCount;
		return mFooters.get(position).getView(convertView, parent);
		}
		}

		private View getDocumentView(int position, View convertView, ViewGroup parent) {
		final Context context = parent.getContext();
		final State state = getDisplayState(DirectoryFragment.this);

		@@ -535,21 +616,42 @@ public class DirectoryFragment extends Fragment {

		@Override
		public int getCount() {
		return mCursor != null ? mCursor.getCount() : 0;
		return mCursorCount + mFooters.size();
		}

		@Override
		public Cursor getItem(int position) {
		if (mCursor != null) {
		if (position < mCursorCount) {
		mCursor.moveToPosition(position);
		}
		return mCursor;
		} else {
		return null;
		}
		}

		@Override
		public long getItemId(int position) {
		return position;
		}

		@Override
		public int getItemViewType(int position) {
		if (position < mCursorCount) {
		return 0;
		} else {
		return IGNORE_ITEM_VIEW_TYPE;
		}
		}

		@Override
		public boolean areAllItemsEnabled() {
		return false;
		}

		@Override
		public boolean isEnabled(int position) {
		return position < mCursorCount;
		}
		}

		private static class ThumbnailAsyncTask extends AsyncTask<Uri, Void, Bitmap> {

src/com/android/documentsui/DirectoryLoader.java

+2 −1

Original line number	Diff line number	Diff line
		@@ -77,11 +77,12 @@ public class DirectoryLoader extends AsyncTaskLoader<DirectoryResult> {
		.getContentResolver().acquireUnstableContentProviderClient(authority);
		final Cursor cursor = result.client.query(
		mUri, null, null, null, getQuerySortOrder(mSortOrder), mSignal);
		cursor.registerContentObserver(mObserver);

		final Cursor withRoot = new RootCursorWrapper(mUri.getAuthority(), mRootId, cursor, -1);
		final Cursor sorted = new SortingCursorWrapper(withRoot, mSortOrder);

		result.cursor = sorted;
		result.cursor.registerContentObserver(mObserver);
		} catch (Exception e) {
		result.exception = e;
		ContentProviderClient.closeQuietly(result.client);