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Change Downloads to show individual files in the Deletion Helper.

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The first implementation simply had every file in the Downloads folder
be under a single checkbox. This iteration makes Downloads an
expandable dropdown preference listing every single file individually
for selection to be deleted.

Bug: 28621781
Change-Id: I5169caf718cee4c0fa7f0248bc4c443984766005
This commit is contained in:
Daniel Nishi
2016-05-20 11:07:12 -07:00
parent 97ac5c773d
commit 1370f7ed20
7 changed files with 285 additions and 87 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
res/values/strings.xml
View File

@@ -7604,7 +7604,7 @@
<string name="deletion_helper_downloads_title">Downloads (<xliff:g id="numItems" example="67">%1$d</xliff:g>)</string>
<!-- Summary of how much stale data can be cleared from the local download folder. [CHAR LIMIT=NONE]-->
<string name="deletion_helper_downloads_summary"><xliff:g id="used" example="1.2GB">%1$s</xliff:g>, last modified <xliff:g id="days">%2$s</xliff:g></string>
<string name="deletion_helper_downloads_summary"><xliff:g id="used" example="1.2GB">%1$s</xliff:g> • last modified <xliff:g id="days">%2$s</xliff:g></string>
<!-- Summary for when when there is nothing in the downloads folder to clear. [CHAR LIMIT=NONE]-->
<string name="deletion_helper_downloads_summary_empty"><xliff:g id="used" example="1.2GB">%1$s</xliff:g></string>

5
res/xml/deletion_helper_list.xml
View File

@@ -20,8 +20,9 @@
<com.android.settings.PhotosDeletionPreference
android:key="delete_photos" />
<com.android.settings.deletionhelper.DownloadsDeletionPreference
android:key="delete_downloads" />
<com.android.settings.deletionhelper.DownloadsDeletionPreferenceGroup
android:key="delete_downloads"
android:icon="@drawable/ic_keyboard_arrow_down_black_32"/>
<com.android.settings.CollapsibleCheckboxPreferenceGroup
android:key="apps_group"

22
src/com/android/settings/deletionhelper/DeletionHelperFragment.java
View File

@@ -25,10 +25,7 @@ import android.text.format.Formatter;
import android.util.ArraySet;
import android.util.Log;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.LinearLayout;
import com.android.settings.deletionhelper.DownloadsDeletionPreference;
import com.android.settings.CollapsibleCheckboxPreferenceGroup;
import com.android.settings.PhotosDeletionPreference;
import com.android.settings.SettingsPreferenceFragment;
@@ -70,7 +67,7 @@ public class DeletionHelperFragment extends SettingsPreferenceFragment implement
private Button mCancel, mFree;
private CollapsibleCheckboxPreferenceGroup mApps;
private PhotosDeletionPreference mPhotoPreference;
private DownloadsDeletionPreference mDownloadsPreference;
private DownloadsDeletionPreferenceGroup mDownloadsPreference;
private ApplicationsState mState;
private Session mSession;
@@ -96,7 +93,7 @@ public class DeletionHelperFragment extends SettingsPreferenceFragment implement
mApps = (CollapsibleCheckboxPreferenceGroup) findPreference(KEY_APPS_GROUP);
mPhotoPreference = (PhotosDeletionPreference) findPreference(KEY_PHOTOS_VIDEOS_PREFERENCE);
mDownloadsPreference =
(DownloadsDeletionPreference) findPreference(KEY_DOWNLOADS_PREFERENCE);
(DownloadsDeletionPreferenceGroup) findPreference(KEY_DOWNLOADS_PREFERENCE);
mProvider =
FeatureFactory.getFactory(app).getDeletionHelperFeatureProvider();
if (mProvider != null) {
@@ -155,14 +152,12 @@ public class DeletionHelperFragment extends SettingsPreferenceFragment implement
super.onResume();
mSession.resume();
mDataUsageBridge.resume();
mDownloadsDeletion.onResume();
getLoaderManager().initLoader(DOWNLOADS_LOADER_ID, new Bundle(), mDownloadsDeletion);
if (mPhotoVideoDeletion != null) {
mPhotoVideoDeletion.onResume();
}
if (mDownloadsDeletion != null) {
mDownloadsDeletion.onResume();
getLoaderManager().initLoader(DOWNLOADS_LOADER_ID, new Bundle(), mDownloadsDeletion);
}
}
@@ -180,13 +175,11 @@ public class DeletionHelperFragment extends SettingsPreferenceFragment implement
super.onPause();
mDataUsageBridge.pause();
mSession.pause();
mDownloadsDeletion.onPause();
if (mPhotoVideoDeletion != null) {
mPhotoVideoDeletion.onPause();
}
if (mDownloadsDeletion != null) {
mDownloadsDeletion.onPause();
}
}
private void rebuild() {
@@ -316,6 +309,7 @@ public class DeletionHelperFragment extends SettingsPreferenceFragment implement
if (mPhotoPreference != null && mPhotoPreference.isChecked()) {
mPhotoVideoDeletion.clearFreeableData();
}
mDownloadsDeletion.clearFreeableData();
ArraySet<String> apps = new ArraySet<>();
for (AppEntry entry : mAppEntries) {
@@ -351,9 +345,7 @@ public class DeletionHelperFragment extends SettingsPreferenceFragment implement
if (mPhotoPreference != null) {
freeableSpace += mPhotoPreference.getFreeableBytes();
}
if (mDownloadsPreference != null) {
freeableSpace += mDownloadsPreference.getFreeableBytes();
}
freeableSpace += mDownloadsDeletion.getFreeableBytes();
return freeableSpace;
}

60
src/com/android/settings/deletionhelper/DownloadsDeletionPreference.java
View File

@@ -1,60 +0,0 @@
/*
* Copyright (C) 2016 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.settings.deletionhelper;
import android.content.Context;
import android.text.format.DateUtils;
import android.util.AttributeSet;
import android.text.format.Formatter;
import com.android.settings.DeletionPreference;
import com.android.settings.R;
/**
* Preference to handle the deletion of photos and videos in the Deletion Helper.
*/
public class DownloadsDeletionPreference extends DeletionPreference {
public DownloadsDeletionPreference(Context context, AttributeSet attrs) {
super(context, attrs);
updatePreferenceText(0, 0, Long.MAX_VALUE);
}
@Override
public void onFreeableChanged(int numItems, long freeableBytes) {
super.onFreeableChanged(numItems, freeableBytes);
DownloadsDeletionType deletionService = (DownloadsDeletionType) getDeletionService();
updatePreferenceText(numItems, freeableBytes, deletionService.getMostRecentLastModified());
}
private void updatePreferenceText(int items, long bytes, long mostRecent) {
Context context = getContext();
setTitle(context.getString(R.string.deletion_helper_downloads_title,
items));
// If there are no files to clear, show the empty text instead.
if (mostRecent < Long.MAX_VALUE) {
setSummary(context.getString(R.string.deletion_helper_downloads_summary,
Formatter.formatFileSize(context, bytes),
DateUtils.getRelativeTimeSpanString(mostRecent,
System.currentTimeMillis(),
DateUtils.DAY_IN_MILLIS,
DateUtils.FORMAT_ABBREV_RELATIVE)));
} else {
setSummary(context.getString(R.string.deletion_helper_downloads_summary_empty,
Formatter.formatFileSize(context, bytes)));
}
}
}

157
src/com/android/settings/deletionhelper/DownloadsDeletionPreferenceGroup.java Normal file
View File

@@ -0,0 +1,157 @@
/*
* Copyright (C) 2016 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.settings.deletionhelper;
import android.content.Context;
import android.support.v7.preference.Preference;
import android.text.format.DateUtils;
import android.text.format.Formatter;
import android.util.ArrayMap;
import android.util.AttributeSet;
import com.android.settings.CollapsibleCheckboxPreferenceGroup;
import com.android.settings.R;
import java.io.File;
import java.util.Set;
/**
* DownloadsDeletionPreferenceGroup defines a checkable preference group which contains
* downloads file deletion preferences.
*/
public class DownloadsDeletionPreferenceGroup extends CollapsibleCheckboxPreferenceGroup
implements DeletionType.FreeableChangedListener, Preference.OnPreferenceChangeListener {
private DownloadsDeletionType mDeletionType;
private DeletionType.FreeableChangedListener mListener;
public DownloadsDeletionPreferenceGroup(Context context) {
this(context, null);
}
public DownloadsDeletionPreferenceGroup(Context context, AttributeSet attrs) {
super(context, attrs);
setOrderingAsAdded(false);
setOnPreferenceChangeListener(this);
}
/**
* Set up a deletion type to get info for the preference group.
* @param type A {@link DownloadsDeletionType}.
*/
public void registerDeletionService(DownloadsDeletionType type) {
mDeletionType = type;
mDeletionType.registerFreeableChangedListener(this);
}
/**
* Registers a callback to be called when the amount of freeable space updates.
* @param listener The callback listener.
*/
public void registerFreeableChangedListener(DeletionType.FreeableChangedListener listener) {
mListener = listener;
}
@Override
public void onFreeableChanged(int numItems, long freeableBytes) {
updatePreferenceText(numItems, freeableBytes, mDeletionType.getMostRecentLastModified());
maybeUpdateListener(numItems, freeableBytes);
updateFiles();
}
@Override
public boolean onPreferenceChange(Preference preference, Object newValue) {
boolean checked = (boolean) newValue;
if (!checked) {
// Temporarily stop listening to avoid propagating the checked change to children.
setOnPreferenceChangeListener(null);
setChecked(false);
setOnPreferenceChangeListener(this);
}
// If the group checkbox changed, we need to toggle every child preference.
if (preference == this) {
for (int i = 0; i < getPreferenceCount(); i++) {
DownloadsFilePreference p = (DownloadsFilePreference) getPreference(i);
p.setOnPreferenceChangeListener(null);
mDeletionType.toggleFile(p.getFile(), checked);
p.setChecked(checked);
p.setOnPreferenceChangeListener(this);
}
maybeUpdateListener(mDeletionType.getFiles().size(), mDeletionType.getFreeableBytes());
return true;
}
// If a single DownloadFilePreference changed, we need to toggle just itself.
DownloadsFilePreference p = (DownloadsFilePreference) preference;
mDeletionType.toggleFile(p.getFile(), checked);
maybeUpdateListener(mDeletionType.getFiles().size(), mDeletionType.getFreeableBytes());
return true;
}
private void updatePreferenceText(int itemCount, long bytes, long mostRecent) {
Context context = getContext();
setTitle(context.getString(R.string.deletion_helper_downloads_title, itemCount));
// If there are no files to clear, show the empty text instead.
if (itemCount != 0) {
setSummary(context.getString(R.string.deletion_helper_downloads_summary,
Formatter.formatFileSize(context, bytes),
DateUtils.getRelativeTimeSpanString(mostRecent,
System.currentTimeMillis(),
DateUtils.DAY_IN_MILLIS,
DateUtils.FORMAT_ABBREV_RELATIVE)));
} else {
setSummary(context.getString(R.string.deletion_helper_downloads_summary_empty,
Formatter.formatFileSize(context, bytes)));
}
}
private void maybeUpdateListener(int numItems, long bytesFreeable) {
if (mListener != null) {
mListener.onFreeableChanged(numItems, bytesFreeable);
}
}
private void updateFiles() {
// TODO: Remove impl overlap with the cached preferences methods in
// SettingsPreferenceFragment.
// Cache the existing file preferences.
ArrayMap<String, Preference> cachedPreferences = new ArrayMap<>();
for (int i = 0; i < getPreferenceCount(); i++) {
Preference p = getPreference(i);
cachedPreferences.put(p.getKey(), p);
}
// Iterate over all of the files and re-use the old file preference, if it exists.
Set<File> files = mDeletionType.getFiles();
for (File file : files) {
DownloadsFilePreference filePreference =
(DownloadsFilePreference) cachedPreferences.remove(file.getPath());
if (filePreference == null) {
filePreference = new DownloadsFilePreference(getContext(), file);
filePreference.setChecked(isChecked());
filePreference.setOnPreferenceChangeListener(this);
}
addPreference(filePreference);
}
// Remove all of the unused preferences.
for (Preference p : cachedPreferences.values()) {
removePreference(p);
}
}
}

58
src/com/android/settings/deletionhelper/DownloadsDeletionType.java
View File

@@ -22,26 +22,30 @@ import android.content.Loader;
import android.os.AsyncTask;
import android.os.Bundle;
import android.os.Environment;
import android.util.ArrayMap;
import android.util.ArraySet;
import com.android.settings.deletionhelper.FetchDownloadsLoader.DownloadsResult;
import java.io.File;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import java.util.Set;
/**
* The DownloadsDeletionType provides stale download file information to the
* {@link DownloadsDeletionPreference}.
* {@link DownloadsDeletionPreferenceGroup}.
*/
public class DownloadsDeletionType implements DeletionType, LoaderCallbacks<DownloadsResult> {
private int mItems;
private long mBytes;
private long mMostRecent;
private FreeableChangedListener mListener;
private FetchDownloadsLoader mTask;
private ArrayList<File> mFiles;
private Context mContext;
private ArrayMap<File, Boolean> mFiles;
public DownloadsDeletionType(Context context) {
mContext = context;
mFiles = new ArrayMap<>();
}
@Override
@@ -66,8 +70,10 @@ public class DownloadsDeletionType implements DeletionType, LoaderCallbacks<Down
AsyncTask.execute(new Runnable() {
@Override
public void run() {
for (File file : mFiles) {
file.delete();
for (Map.Entry<File, Boolean> entry : mFiles.entrySet()) {
if (entry.getValue()) {
entry.getKey().delete();
}
}
}
});
@@ -83,9 +89,13 @@ public class DownloadsDeletionType implements DeletionType, LoaderCallbacks<Down
@Override
public void onLoadFinished(Loader<DownloadsResult> loader, DownloadsResult data) {
mMostRecent = data.youngestLastModified;
mFiles = data.files;
for (File file : data.files) {
if (mFiles.containsKey(file)) {
continue;
}
mFiles.put(file, false);
}
mBytes = data.totalSize;
mItems = mFiles.size();
maybeUpdateListener();
}
@@ -101,9 +111,39 @@ public class DownloadsDeletionType implements DeletionType, LoaderCallbacks<Down
return mMostRecent;
}
/**
* Returns the files in the Downloads folder after the loader task finishes.
*/
public Set<File> getFiles() {
if (mFiles == null) {
return null;
}
return mFiles.keySet();
}
/**
* Toggle if a file should be deleted when the service is asked to clear files.
*/
public void toggleFile(File file, boolean checked) {
mFiles.put(file, checked);
}
/**
* Returns the number of bytes that would be cleared if the deletion tasks runs.
*/
public long getFreeableBytes() {
long freedBytes = 0;
for (Map.Entry<File, Boolean> entry : mFiles.entrySet()) {
if (entry.getValue()) {
freedBytes += entry.getKey().length();
}
}
return freedBytes;
}
private void maybeUpdateListener() {
if (mListener != null) {
mListener.onFreeableChanged(mItems, mBytes);
mListener.onFreeableChanged(mFiles.size(), mBytes);
}
}
}

68
src/com/android/settings/deletionhelper/DownloadsFilePreference.java Normal file
View File

@@ -0,0 +1,68 @@
/*
* Copyright (C) 2016 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.settings.deletionhelper;
import android.content.Context;
import android.support.v7.preference.Preference;
import android.support.v7.preference.CheckBoxPreference;
import android.text.format.DateUtils;
import android.text.format.Formatter;
import com.android.settings.R;
import java.io.File;
/**
* DownloadsFilePreference is a preference representing a file in the Downloads folder
* with a checkbox that represents if the file should be deleted.
*/
public class DownloadsFilePreference extends CheckBoxPreference {
private File mFile;
public DownloadsFilePreference(Context context, File file) {
super(context);
mFile = file;
setKey(mFile.getPath());
setTitle(file.getName());
setSummary(context.getString(R.string.deletion_helper_downloads_summary,
Formatter.formatFileSize(getContext(), file.length()),
DateUtils.getRelativeTimeSpanString(mFile.lastModified(),
System.currentTimeMillis(),
DateUtils.DAY_IN_MILLIS,
DateUtils.FORMAT_ABBREV_RELATIVE)));
}
public File getFile() {
return mFile;
}
@Override
public int compareTo(Preference other) {
if (other == null) {
return 1;
}
if (other instanceof DownloadsFilePreference) {
DownloadsFilePreference preference = (DownloadsFilePreference) other;
return Long.compare(getFile().length(), preference.getFile().length());
} else {
// If a non-DownloadsFilePreference appears, consider ourselves to be greater.
// This means if a non-DownloadsFilePreference sneaks into a DownloadsPreferenceGroup
// then the DownloadsFilePreference will appear higher.
return 1;
}
}
}