auto import from //depot/cupcake/@135843
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The Android Open Source Project
218
src/com/android/settings/deviceinfo/Memory.java
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218
src/com/android/settings/deviceinfo/Memory.java
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/*
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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.content.BroadcastReceiver;
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import android.content.Context;
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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.IBinder;
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import android.os.RemoteException;
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import android.os.Environment;
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import android.os.IMountService;
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import android.os.ServiceManager;
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import android.os.StatFs;
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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 com.android.settings.R;
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import java.io.File;
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import java.text.DecimalFormat;
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public class Memory extends PreferenceActivity {
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private static final String TAG = "Memory";
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private static final String MEMORY_SD_SIZE = "memory_sd_size";
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private static final String MEMORY_SD_AVAIL = "memory_sd_avail";
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private static final String MEMORY_SD_UNMOUNT = "memory_sd_unmount";
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private static final String MEMORY_SD_FORMAT = "memory_sd_format";
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private Resources mRes;
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private Preference mSdSize;
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private Preference mSdAvail;
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private Preference mSdUnmount;
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private Preference mSdFormat;
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// Access using getMountService()
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private IMountService mMountService = null;
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@Override
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protected void onCreate(Bundle icicle) {
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super.onCreate(icicle);
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addPreferencesFromResource(R.xml.device_info_memory);
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mRes = getResources();
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mSdSize = findPreference(MEMORY_SD_SIZE);
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mSdAvail = findPreference(MEMORY_SD_AVAIL);
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mSdUnmount = findPreference(MEMORY_SD_UNMOUNT);
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mSdFormat = findPreference(MEMORY_SD_FORMAT);
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}
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@Override
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protected void onResume() {
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super.onResume();
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IntentFilter intentFilter = new IntentFilter(Intent.ACTION_MEDIA_REMOVED);
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intentFilter.addAction(Intent.ACTION_MEDIA_UNMOUNTED);
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intentFilter.addAction(Intent.ACTION_MEDIA_MOUNTED);
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intentFilter.addAction(Intent.ACTION_MEDIA_SHARED);
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intentFilter.addAction(Intent.ACTION_MEDIA_BAD_REMOVAL);
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intentFilter.addAction(Intent.ACTION_MEDIA_UNMOUNTABLE);
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intentFilter.addAction(Intent.ACTION_MEDIA_NOFS);
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intentFilter.addAction(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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registerReceiver(mReceiver, intentFilter);
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updateMemoryStatus();
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}
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@Override
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protected void onPause() {
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super.onPause();
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unregisterReceiver(mReceiver);
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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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if (preference == mSdUnmount) {
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unmount();
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return true;
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} else if (preference == mSdFormat) {
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Intent intent = new Intent(Intent.ACTION_VIEW);
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intent.setClass(this, com.android.settings.MediaFormat.class);
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startActivity(intent);
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return true;
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}
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return false;
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}
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private final BroadcastReceiver mReceiver = new BroadcastReceiver() {
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@Override
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public void onReceive(Context context, Intent intent) {
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updateMemoryStatus();
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}
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};
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private void unmount() {
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IMountService mountService = getMountService();
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try {
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if (mountService != null) {
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mountService.unmountMedia(Environment.getExternalStorageDirectory().toString());
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} else {
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Log.e(TAG, "Mount service is null, can't unmount");
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}
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} catch (RemoteException ex) {
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// Failed for some reason, try to update UI to actual state
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updateMemoryStatus();
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}
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}
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private void updateMemoryStatus() {
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String status = Environment.getExternalStorageState();
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String readOnly = "";
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if (status.equals(Environment.MEDIA_MOUNTED_READ_ONLY)) {
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status = Environment.MEDIA_MOUNTED;
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readOnly = mRes.getString(R.string.read_only);
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}
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mSdFormat.setEnabled(false);
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if (status.equals(Environment.MEDIA_MOUNTED)) {
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try {
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File path = Environment.getExternalStorageDirectory();
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StatFs stat = new StatFs(path.getPath());
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long blockSize = stat.getBlockSize();
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long totalBlocks = stat.getBlockCount();
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long availableBlocks = stat.getAvailableBlocks();
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mSdSize.setSummary(formatSize(totalBlocks * blockSize));
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mSdAvail.setSummary(formatSize(availableBlocks * blockSize) + readOnly);
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mSdUnmount.setEnabled(true);
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} catch (IllegalArgumentException e) {
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// this can occur if the SD card is removed, but we haven't received the
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// ACTION_MEDIA_REMOVED Intent yet.
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status = Environment.MEDIA_REMOVED;
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}
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} else {
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mSdSize.setSummary(mRes.getString(R.string.sd_unavailable));
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mSdAvail.setSummary(mRes.getString(R.string.sd_unavailable));
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mSdUnmount.setEnabled(false);
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if (status.equals(Environment.MEDIA_UNMOUNTED) ||
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status.equals(Environment.MEDIA_NOFS) ||
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status.equals(Environment.MEDIA_UNMOUNTABLE) ) {
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mSdFormat.setEnabled(true);
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}
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}
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File path = Environment.getDataDirectory();
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StatFs stat = new StatFs(path.getPath());
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long blockSize = stat.getBlockSize();
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long availableBlocks = stat.getAvailableBlocks();
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findPreference("memory_internal_avail").setSummary(formatSize(availableBlocks * blockSize));
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}
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private String formatSize(long size) {
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String suffix = null;
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// add KB or MB suffix if size is greater than 1K or 1M
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if (size >= 1024) {
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suffix = " KB";
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size /= 1024;
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if (size >= 1024) {
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suffix = " MB";
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size /= 1024;
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}
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}
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DecimalFormat formatter = new DecimalFormat();
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formatter.setGroupingSize(3);
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String result = formatter.format(size);
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if (suffix != null)
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result = result + suffix;
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return result;
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}
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}
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