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/*
* Copyright (C) 2010 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.camera;
import android.os.Environment;
import android.os.StatFs;
import android.util.Log;
import java.io.File;
class Storage {
private static final String TAG = "CameraStorage";
private static final String DCIM =
Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DCIM).toString();
public static final String DIRECTORY = DCIM + "/Camera";
public static final long UNAVAILABLE = -1L;
public static final long PREPARING = -2L;
public static final long UNKNOWN_SIZE = -3L;
public static long getAvailableSpace() {
String state = Environment.getExternalStorageState();
if (Environment.MEDIA_CHECKING.equals(state)) {
return PREPARING;
}
if (!Environment.MEDIA_MOUNTED.equals(state)) {
return UNAVAILABLE;
}
File dir = new File(DIRECTORY);
dir.mkdirs();
if (!dir.isDirectory() || !dir.canWrite()) {
return UNAVAILABLE;
}
try {
StatFs stat = new StatFs(DIRECTORY);
return stat.getAvailableBlocks() * (long) stat.getBlockSize();
} catch (Exception e) {
Log.i(TAG, "Fail to access external storage", e);
}
return UNKNOWN_SIZE;
}
}
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