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Commit 0e9cf8a7 authored by Jeff Sharkey's avatar Jeff Sharkey
Browse files

Storage item to represent cached data. 

When touched, offers to clear all cached data.

Bug: 7216370
Change-Id: I86afe66b819fb7deeba909bef507925fc5a590f3
parent b1055311

res/values/colors.xml

+1 −0
Original line number Diff line number Diff line
@@ -24,6 +24,7 @@ 
    <color name="memory_downloads">#476093</color>

    <color name="memory_dcim">#793A7F</color>

    <color name="memory_music">#8E562A</color>

    <color name="memory_cache">#479392</color>

    <color name="memory_misc">#7C3030</color>

    <color name="memory_user_light">#479392</color>

    <color name="memory_user_dark">#316665</color>

res/values/strings.xml

+7 −0
Original line number Diff line number Diff line
@@ -1937,6 +1937,8 @@ 
    <string name="memory_music_usage">Audio (music, ringtones, podcasts, etc.)</string>

    <!-- SD card & phone storage settings title. Displayed as a title when showing the total usage of misc files on the device. Below it will be a number like "123.4 MB" indicating used storage. [CHAR LIMIT=50] -->

    <string name="memory_media_misc_usage">Misc.</string>

    <!-- Storage item representing all cached data on device. [CHAR LIMIT=48] -->

    <string name="memory_media_cache_usage">Cached data</string>

    <!-- SD card & phone storage settings item title that will result in the phone unmounting the SD card.  This will be done before the user phyiscally removes the SD card from the phone.  Kind of like the "Safely remove" on some operating systems.   [CHAR LIMIT=25] -->

    <string name="sd_eject" product="nosdcard">Unmount shared storage</string>

    <!-- SD card & phone storage settings item title that will result in the phone unmounting the SD card.  This will be done before the user phyiscally removes the SD card from the phone.  Kind of like the "Safely remove" on some operating systems.   -->
@@ -1971,6 +1973,11 @@ 
    <string name="sd_format_summary" product="default">Erases all data on the SD card, such as music and photos</string>

    <!-- SD card status when it is mounted as read only. Will be appended to size, starts with an unbreakable space -->



    <!-- Title of dialog asking user to confirm before clearing all caches. [CHAR LIMIT=48] -->

    <string name="memory_clear_cache_title">Clear cached data?</string>

    <!-- Message of dialog asking user to confirm before clearing all caches. [CHAR LIMIT=48] -->

    <string name="memory_clear_cache_message">This will clear cached data for all apps.</string>



    <!-- SD card & phone storage settings item summary that will result in the phone connected to PC and MTP/PTP enabled.   [CHAR LIMIT=80] -->

    <string name="mtp_ptp_mode_summary">MTP or PTP function is active</string>

src/com/android/settings/deviceinfo/Memory.java

+76 −0
Original line number Diff line number Diff line
@@ -18,11 +18,15 @@ package com.android.settings.deviceinfo; 


import android.app.AlertDialog;

import android.app.Dialog;

import android.app.DialogFragment;

import android.content.BroadcastReceiver;

import android.content.Context;

import android.content.DialogInterface;

import android.content.Intent;

import android.content.IntentFilter;

import android.content.pm.IPackageDataObserver;

import android.content.pm.PackageInfo;

import android.content.pm.PackageManager;

import android.hardware.usb.UsbManager;

import android.os.Bundle;

import android.os.Environment;
@@ -48,6 +52,7 @@ import com.android.settings.Utils; 
import com.google.common.collect.Lists;



import java.util.ArrayList;

import java.util.List;



/**

 * Panel showing storage usage on disk for known {@link StorageVolume} returned
@@ -56,6 +61,8 @@ import java.util.ArrayList; 
public class Memory extends SettingsPreferenceFragment {

    private static final String TAG = "MemorySettings";



    private static final String TAG_CONFIRM_CLEAR_CACHE = "confirmClearCache";



    private static final int DLG_CONFIRM_UNMOUNT = 1;

    private static final int DLG_ERROR_UNMOUNT = 2;
@@ -202,6 +209,11 @@ public class Memory extends SettingsPreferenceFragment { 


    @Override

    public boolean onPreferenceTreeClick(PreferenceScreen preferenceScreen, Preference preference) {

        if (StorageVolumePreferenceCategory.KEY_CACHE.equals(preference.getKey())) {

            ConfirmClearCacheFragment.show(this);

            return true;

        }



        for (StorageVolumePreferenceCategory category : mCategories) {

            Intent intent = category.intentForClick(preference);

            if (intent != null) {
@@ -339,4 +351,68 @@ public class Memory extends SettingsPreferenceFragment { 
            // Not much can be done

        }

    }



    private void onCacheCleared() {

        for (StorageVolumePreferenceCategory category : mCategories) {

            category.onCacheCleared();

        }

    }



    private static class ClearCacheObserver extends IPackageDataObserver.Stub {

        private final Memory mTarget;

        private int mRemaining;



        public ClearCacheObserver(Memory target, int remaining) {

            mTarget = target;

            mRemaining = remaining;

        }



        @Override

        public void onRemoveCompleted(final String packageName, final boolean succeeded) {

            synchronized (this) {

                if (--mRemaining == 0) {

                    mTarget.onCacheCleared();

                }

            }

        }

    }



    /**

     * Dialog to request user confirmation before clearing all cache data.

     */

    public static class ConfirmClearCacheFragment extends DialogFragment {

        public static void show(Memory parent) {

            if (!parent.isAdded()) return;



            final ConfirmClearCacheFragment dialog = new ConfirmClearCacheFragment();

            dialog.setTargetFragment(parent, 0);

            dialog.show(parent.getFragmentManager(), TAG_CONFIRM_CLEAR_CACHE);

        }



        @Override

        public Dialog onCreateDialog(Bundle savedInstanceState) {

            final Context context = getActivity();



            final AlertDialog.Builder builder = new AlertDialog.Builder(context);

            builder.setTitle(R.string.memory_clear_cache_title);

            builder.setMessage(getString(R.string.memory_clear_cache_message));



            builder.setPositiveButton(android.R.string.ok, new DialogInterface.OnClickListener() {

                @Override

                public void onClick(DialogInterface dialog, int which) {

                    final Memory target = (Memory) getTargetFragment();

                    final PackageManager pm = context.getPackageManager();

                    final List<PackageInfo> infos = pm.getInstalledPackages(0);

                    final ClearCacheObserver observer = new ClearCacheObserver(

                            target, infos.size());

                    for (PackageInfo info : infos) {

                        pm.deleteApplicationCacheFiles(info.packageName, observer);

                    }

                }

            });

            builder.setNegativeButton(android.R.string.cancel, null);



            return builder.create();

        }

    }

}

src/com/android/settings/deviceinfo/StorageVolumePreferenceCategory.java

+13 −1
Original line number Diff line number Diff line
@@ -46,6 +46,8 @@ import java.util.Iterator; 
import java.util.List;



public class StorageVolumePreferenceCategory extends PreferenceCategory {

    public static final String KEY_CACHE = "cache";



    private static final int ORDER_USAGE_BAR = -2;

    private static final int ORDER_STORAGE_LOW = -1;
@@ -68,6 +70,7 @@ public class StorageVolumePreferenceCategory extends PreferenceCategory { 
    private StorageItemPreference mItemDcim;

    private StorageItemPreference mItemMusic;

    private StorageItemPreference mItemDownloads;

    private StorageItemPreference mItemCache;

    private StorageItemPreference mItemMisc;

    private List<StorageItemPreference> mItemUsers = Lists.newArrayList();
@@ -157,8 +160,11 @@ public class StorageVolumePreferenceCategory extends PreferenceCategory { 
        mItemDcim = buildItem(R.string.memory_dcim_usage, R.color.memory_dcim);

        mItemMusic = buildItem(R.string.memory_music_usage, R.color.memory_music);

        mItemDownloads = buildItem(R.string.memory_downloads_usage, R.color.memory_downloads);

        mItemCache = buildItem(R.string.memory_media_cache_usage, R.color.memory_cache);

        mItemMisc = buildItem(R.string.memory_media_misc_usage, R.color.memory_misc);



        mItemCache.setKey(KEY_CACHE);



        final boolean showDetails = mVolume == null || mVolume.isPrimary();

        if (showDetails) {

            if (showUsers) {
@@ -169,6 +175,7 @@ public class StorageVolumePreferenceCategory extends PreferenceCategory { 
            addPreference(mItemDcim);

            addPreference(mItemMusic);

            addPreference(mItemDownloads);

            addPreference(mItemCache);

            addPreference(mItemMisc);



            if (showUsers) {
@@ -314,7 +321,7 @@ public class StorageVolumePreferenceCategory extends PreferenceCategory { 


        // Count caches as available space, since system manages them

        mItemTotal.setSummary(formatSize(details.totalSize));

        mItemAvailable.setSummary(formatSize(details.availSize + details.cacheSize));

        mItemAvailable.setSummary(formatSize(details.availSize));



        mUsageBarPreference.clear();
@@ -332,6 +339,7 @@ public class StorageVolumePreferenceCategory extends PreferenceCategory { 
        final long downloadsSize = totalValues(details.mediaSize, Environment.DIRECTORY_DOWNLOADS);

        updatePreference(mItemDownloads, downloadsSize);



        updatePreference(mItemCache, details.cacheSize);

        updatePreference(mItemMisc, details.miscSize);



        for (StorageItemPreference userPref : mItemUsers) {
@@ -376,6 +384,10 @@ public class StorageVolumePreferenceCategory extends PreferenceCategory { 
        measure();

    }



    public void onCacheCleared() {

        measure();

    }



    public void onPause() {

        mMeasure.cleanUp();

    }