96c2f8c508
Cleans up StorageVolumePreferenceCategory creation, and uses new isPrimary() API instead of passing around hacky "i == 0" derived value. Bug: 7003520 Change-Id: I9eb7164035b5368ee795e35b22e750aebbf3b159
347 lines
13 KiB
Java
347 lines
13 KiB
Java
/*
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* Copyright (C) 2008 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.settings.deviceinfo;
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import android.app.AlertDialog;
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import android.app.Dialog;
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import android.content.BroadcastReceiver;
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import android.content.Context;
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import android.content.DialogInterface;
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import android.content.Intent;
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import android.content.IntentFilter;
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import android.hardware.usb.UsbManager;
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import android.os.Bundle;
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import android.os.Environment;
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import android.os.IBinder;
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import android.os.RemoteException;
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import android.os.ServiceManager;
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import android.os.storage.IMountService;
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import android.os.storage.StorageEventListener;
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import android.os.storage.StorageManager;
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import android.os.storage.StorageVolume;
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import android.preference.Preference;
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import android.preference.PreferenceActivity;
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import android.preference.PreferenceScreen;
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import android.util.Log;
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import android.view.Menu;
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import android.view.MenuInflater;
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import android.view.MenuItem;
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import android.widget.Toast;
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import com.android.settings.R;
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import com.android.settings.SettingsPreferenceFragment;
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import com.android.settings.Utils;
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import com.google.common.collect.Lists;
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import java.util.ArrayList;
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/**
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* Panel showing storage usage on disk for known {@link StorageVolume} returned
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* by {@link StorageManager}. Calculates and displays usage of data types.
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*/
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public class Memory extends SettingsPreferenceFragment {
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private static final String TAG = "MemorySettings";
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private static final int DLG_CONFIRM_UNMOUNT = 1;
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private static final int DLG_ERROR_UNMOUNT = 2;
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// The mountToggle Preference that has last been clicked.
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// Assumes no two successive unmount event on 2 different volumes are performed before the first
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// one's preference is disabled
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private static Preference sLastClickedMountToggle;
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private static String sClickedMountPoint;
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// Access using getMountService()
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private IMountService mMountService = null;
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private StorageManager mStorageManager = null;
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private UsbManager mUsbManager = null;
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private ArrayList<StorageVolumePreferenceCategory> mCategories = Lists.newArrayList();
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@Override
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public void onCreate(Bundle icicle) {
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super.onCreate(icicle);
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mUsbManager = (UsbManager)getSystemService(Context.USB_SERVICE);
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if (mStorageManager == null) {
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mStorageManager = (StorageManager) getSystemService(Context.STORAGE_SERVICE);
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mStorageManager.registerListener(mStorageListener);
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}
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addPreferencesFromResource(R.xml.device_info_memory);
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if (!Environment.isExternalStorageEmulated()) {
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// External storage is separate from internal storage; need to
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// show internal storage as a separate item.
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addCategoryForVolume(null);
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}
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final StorageVolume[] storageVolumes = mStorageManager.getVolumeList();
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for (StorageVolume volume : storageVolumes) {
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addCategoryForVolume(volume);
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}
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setHasOptionsMenu(true);
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}
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private void addCategoryForVolume(StorageVolume volume) {
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final StorageVolumePreferenceCategory category = new StorageVolumePreferenceCategory(
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getActivity(), volume, mStorageManager);
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// TODO: if primary emulated storage, then insert split items
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mCategories.add(category);
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getPreferenceScreen().addPreference(category);
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category.init();
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}
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private boolean isMassStorageEnabled() {
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// mass storage is enabled if primary volume supports it
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final StorageVolume[] storageVolumes = mStorageManager.getVolumeList();
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return (storageVolumes.length > 0 && storageVolumes[0].allowMassStorage());
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}
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@Override
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public void onResume() {
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super.onResume();
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IntentFilter intentFilter = new IntentFilter(Intent.ACTION_MEDIA_SCANNER_STARTED);
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intentFilter.addAction(Intent.ACTION_MEDIA_SCANNER_FINISHED);
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intentFilter.addDataScheme("file");
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getActivity().registerReceiver(mMediaScannerReceiver, intentFilter);
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intentFilter = new IntentFilter();
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intentFilter.addAction(UsbManager.ACTION_USB_STATE);
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getActivity().registerReceiver(mMediaScannerReceiver, intentFilter);
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for (StorageVolumePreferenceCategory category : mCategories) {
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category.onResume();
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}
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}
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StorageEventListener mStorageListener = new StorageEventListener() {
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@Override
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public void onStorageStateChanged(String path, String oldState, String newState) {
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Log.i(TAG, "Received storage state changed notification that " + path +
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" changed state from " + oldState + " to " + newState);
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for (StorageVolumePreferenceCategory category : mCategories) {
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final StorageVolume volume = category.getStorageVolume();
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if (volume != null && path.equals(volume.getPath())) {
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category.onStorageStateChanged();
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break;
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}
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}
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}
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};
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@Override
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public void onPause() {
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super.onPause();
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getActivity().unregisterReceiver(mMediaScannerReceiver);
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for (StorageVolumePreferenceCategory category : mCategories) {
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category.onPause();
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}
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}
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@Override
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public void onDestroy() {
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if (mStorageManager != null && mStorageListener != null) {
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mStorageManager.unregisterListener(mStorageListener);
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}
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super.onDestroy();
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}
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@Override
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public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
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inflater.inflate(R.menu.storage, menu);
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}
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@Override
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public void onPrepareOptionsMenu(Menu menu) {
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final MenuItem usb = menu.findItem(R.id.storage_usb);
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usb.setVisible(!isMassStorageEnabled());
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}
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@Override
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public boolean onOptionsItemSelected(MenuItem item) {
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switch (item.getItemId()) {
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case R.id.storage_usb:
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if (getActivity() instanceof PreferenceActivity) {
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((PreferenceActivity) getActivity()).startPreferencePanel(
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UsbSettings.class.getCanonicalName(),
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null,
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R.string.storage_title_usb, null,
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this, 0);
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} else {
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startFragment(this, UsbSettings.class.getCanonicalName(), -1, null);
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}
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return true;
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}
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return super.onOptionsItemSelected(item);
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}
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private synchronized IMountService getMountService() {
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if (mMountService == null) {
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IBinder service = ServiceManager.getService("mount");
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if (service != null) {
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mMountService = IMountService.Stub.asInterface(service);
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} else {
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Log.e(TAG, "Can't get mount service");
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}
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}
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return mMountService;
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}
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@Override
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public boolean onPreferenceTreeClick(PreferenceScreen preferenceScreen, Preference preference) {
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for (StorageVolumePreferenceCategory category : mCategories) {
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Intent intent = category.intentForClick(preference);
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if (intent != null) {
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// Don't go across app boundary if monkey is running
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if (!Utils.isMonkeyRunning()) {
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startActivity(intent);
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}
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return true;
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}
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final StorageVolume volume = category.getStorageVolume();
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if (volume != null && category.mountToggleClicked(preference)) {
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sLastClickedMountToggle = preference;
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sClickedMountPoint = volume.getPath();
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String state = mStorageManager.getVolumeState(volume.getPath());
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if (Environment.MEDIA_MOUNTED.equals(state) ||
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Environment.MEDIA_MOUNTED_READ_ONLY.equals(state)) {
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unmount();
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} else {
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mount();
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}
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return true;
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}
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}
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return false;
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}
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private final BroadcastReceiver mMediaScannerReceiver = new BroadcastReceiver() {
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@Override
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public void onReceive(Context context, Intent intent) {
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String action = intent.getAction();
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if (action.equals(UsbManager.ACTION_USB_STATE)) {
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boolean isUsbConnected = intent.getBooleanExtra(UsbManager.USB_CONNECTED, false);
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String usbFunction = mUsbManager.getDefaultFunction();
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for (StorageVolumePreferenceCategory category : mCategories) {
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category.onUsbStateChanged(isUsbConnected, usbFunction);
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}
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} else if (action.equals(Intent.ACTION_MEDIA_SCANNER_FINISHED)) {
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for (StorageVolumePreferenceCategory category : mCategories) {
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category.onMediaScannerFinished();
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}
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}
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}
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};
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@Override
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public Dialog onCreateDialog(int id) {
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switch (id) {
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case DLG_CONFIRM_UNMOUNT:
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return new AlertDialog.Builder(getActivity())
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.setTitle(R.string.dlg_confirm_unmount_title)
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.setPositiveButton(R.string.dlg_ok, new DialogInterface.OnClickListener() {
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public void onClick(DialogInterface dialog, int which) {
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doUnmount();
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}})
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.setNegativeButton(R.string.cancel, null)
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.setMessage(R.string.dlg_confirm_unmount_text)
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.create();
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case DLG_ERROR_UNMOUNT:
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return new AlertDialog.Builder(getActivity())
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.setTitle(R.string.dlg_error_unmount_title)
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.setNeutralButton(R.string.dlg_ok, null)
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.setMessage(R.string.dlg_error_unmount_text)
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.create();
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}
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return null;
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}
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private void doUnmount() {
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// Present a toast here
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Toast.makeText(getActivity(), R.string.unmount_inform_text, Toast.LENGTH_SHORT).show();
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IMountService mountService = getMountService();
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try {
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sLastClickedMountToggle.setEnabled(false);
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sLastClickedMountToggle.setTitle(getString(R.string.sd_ejecting_title));
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sLastClickedMountToggle.setSummary(getString(R.string.sd_ejecting_summary));
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mountService.unmountVolume(sClickedMountPoint, true, false);
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} catch (RemoteException e) {
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// Informative dialog to user that unmount failed.
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showDialogInner(DLG_ERROR_UNMOUNT);
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}
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}
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private void showDialogInner(int id) {
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removeDialog(id);
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showDialog(id);
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}
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private boolean hasAppsAccessingStorage() throws RemoteException {
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IMountService mountService = getMountService();
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int stUsers[] = mountService.getStorageUsers(sClickedMountPoint);
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if (stUsers != null && stUsers.length > 0) {
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return true;
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}
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// TODO FIXME Parameterize with mountPoint and uncomment.
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// On HC-MR2, no apps can be installed on sd and the emulated internal storage is not
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// removable: application cannot interfere with unmount
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/*
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ActivityManager am = (ActivityManager)getSystemService(Context.ACTIVITY_SERVICE);
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List<ApplicationInfo> list = am.getRunningExternalApplications();
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if (list != null && list.size() > 0) {
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return true;
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}
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*/
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// Better safe than sorry. Assume the storage is used to ask for confirmation.
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return true;
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}
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private void unmount() {
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// Check if external media is in use.
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try {
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if (hasAppsAccessingStorage()) {
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// Present dialog to user
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showDialogInner(DLG_CONFIRM_UNMOUNT);
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} else {
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doUnmount();
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}
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} catch (RemoteException e) {
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// Very unlikely. But present an error dialog anyway
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Log.e(TAG, "Is MountService running?");
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showDialogInner(DLG_ERROR_UNMOUNT);
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}
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}
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private void mount() {
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IMountService mountService = getMountService();
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try {
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if (mountService != null) {
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mountService.mountVolume(sClickedMountPoint);
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} else {
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Log.e(TAG, "Mount service is null, can't mount");
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}
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} catch (RemoteException ex) {
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// Not much can be done
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}
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}
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}
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