6d36fd3a03
Adding the StorageVolume to the format intent. Change-Id: If1a50a2d5c5154e9f00116db536c62324c447e7c
298 lines
11 KiB
Java
298 lines
11 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.DialogInterface.OnCancelListener;
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import android.content.Intent;
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import android.content.IntentFilter;
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import android.content.res.Resources;
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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.PreferenceScreen;
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import android.util.Log;
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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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public class Memory extends SettingsPreferenceFragment implements OnCancelListener {
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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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private Resources mResources;
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// The mountToggle Preference that has been clicked.
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// The click event will be discarded if this value is not null. Reset to null after (un)mount.
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private Preference mClickedMountToggle;
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private String mClickedMountPoint;
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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 StorageVolumePreferenceCategory[] mStorageVolumePreferenceCategories;
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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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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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mResources = getResources();
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StorageVolume[] storageVolumes = mStorageManager.getVolumeList();
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int length = storageVolumes.length;
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mStorageVolumePreferenceCategories = new StorageVolumePreferenceCategory[length];
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for (int i = 0; i < length; i++) {
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StorageVolume storageVolume = storageVolumes[i];
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StorageVolumePreferenceCategory storagePreferenceCategory =
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new StorageVolumePreferenceCategory(getActivity(), mResources, storageVolume,
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mStorageManager, i == 0); // The first volume is the primary volume
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mStorageVolumePreferenceCategories[i] = storagePreferenceCategory;
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getPreferenceScreen().addPreference(storagePreferenceCategory);
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storagePreferenceCategory.init();
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}
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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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for (int i = 0; i < mStorageVolumePreferenceCategories.length; i++) {
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mStorageVolumePreferenceCategories[i].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 " +
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path + " changed state from " + oldState +
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" to " + newState);
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for (int i = 0; i < mStorageVolumePreferenceCategories.length; i++) {
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StorageVolumePreferenceCategory svpc = mStorageVolumePreferenceCategories[i];
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if (path.equals(svpc.getStorageVolume().getPath())) {
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svpc.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 (int i = 0; i < mStorageVolumePreferenceCategories.length; i++) {
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mStorageVolumePreferenceCategories[i].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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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 (int i = 0; i < mStorageVolumePreferenceCategories.length; i++) {
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StorageVolumePreferenceCategory svpc = mStorageVolumePreferenceCategories[i];
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Intent intent = svpc.intentForClick(preference);
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if (intent != null) {
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startActivity(intent);
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return true;
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}
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boolean mountToggleClicked = svpc.mountToggleClicked(preference);
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if (mountToggleClicked && mClickedMountToggle == null) {
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mClickedMountToggle = preference;
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final StorageVolume storageVolume = svpc.getStorageVolume();
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mClickedMountPoint = storageVolume.getPath();
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String state = mStorageManager.getVolumeState(storageVolume.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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for (int i = 0; i < mStorageVolumePreferenceCategories.length; i++) {
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mStorageVolumePreferenceCategories[i].onMediaScannerFinished();
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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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@Override
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protected void showDialog(int id) {
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super.showDialog(id);
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switch (id) {
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case DLG_CONFIRM_UNMOUNT:
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case DLG_ERROR_UNMOUNT:
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setOnCancelListener(this);
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break;
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}
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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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mClickedMountToggle.setEnabled(false);
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mClickedMountToggle.setTitle(mResources.getString(R.string.sd_ejecting_title));
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mClickedMountToggle.setSummary(mResources.getString(R.string.sd_ejecting_summary));
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mountService.unmountVolume(mClickedMountPoint, true);
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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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mClickedMountToggle = null;
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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(mClickedMountPoint);
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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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return false;
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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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mClickedMountToggle = null;
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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(mClickedMountPoint);
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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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mClickedMountToggle = null;
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}
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public void onCancel(DialogInterface dialog) {
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mClickedMountToggle = null;
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}
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}
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