com.fallahpoor.infocenter.fragments.StorageFragment.java Source code

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Here is the source code for com.fallahpoor.infocenter.fragments.StorageFragment.java

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/*
Copyright (C) 2014 Masood Fallahpoor
    
This file is part of Info Center.
    
Info Center is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
    
Info Center is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
    
You should have received a copy of the GNU General Public License
along with Info Center. If not, see <http://www.gnu.org/licenses/>.
 */

package com.fallahpoor.infocenter.fragments;

import android.annotation.TargetApi;
import android.os.Build;
import android.os.Bundle;
import android.os.Environment;
import android.os.StatFs;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ListView;

import com.fallahpoor.infocenter.R;
import com.fallahpoor.infocenter.Utils;
import com.fallahpoor.infocenter.adapters.CustomArrayAdapter;
import com.fallahpoor.infocenter.adapters.HeaderListItem;
import com.fallahpoor.infocenter.adapters.ListItem;
import com.fallahpoor.infocenter.adapters.OrdinaryListItem;

import java.io.File;
import java.util.ArrayList;

/**
 * StorageFragment displays some information about the size of internal and
 * external storage of the device.
 *
 * @author Masood Fallahpoor
 */
public class StorageFragment extends Fragment {

    private boolean mIsApiAtLeast18;

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {

        super.onCreateView(inflater, container, savedInstanceState);
        View view = inflater.inflate(R.layout.fragment_storage, container, false);

        mIsApiAtLeast18 = Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR2;

        ListView listView = (ListView) view.findViewById(R.id.listView);
        listView.setAdapter(new CustomArrayAdapter(getActivity(), getListItems()));

        return view;

    }

    private ArrayList<ListItem> getListItems() {

        ArrayList<ListItem> items = new ArrayList<>();
        String freeSpace;
        String totalSpace;

        totalSpace = getString(R.string.sto_item_total_space);
        freeSpace = getString(R.string.sto_item_free_space);

        items.add(new HeaderListItem(getString(R.string.sto_item_int_storage)));
        items.add(new OrdinaryListItem(totalSpace, getInternalTotal()));
        items.add(new OrdinaryListItem(freeSpace, getInternalFree()));
        items.add(new HeaderListItem(getString(R.string.sto_item_ext_storage)));
        items.add(new OrdinaryListItem(totalSpace, getExternalTotal()));
        items.add(new OrdinaryListItem(freeSpace, getExternalFree()));

        return items;

    }

    // Returns the total size of internal storage
    @SuppressWarnings("deprecation")
    @TargetApi(Build.VERSION_CODES.JELLY_BEAN_MR2)
    private String getInternalTotal() {

        long size;
        StatFs internalStatFs = new StatFs(Environment.getDataDirectory().getAbsolutePath());

        if (mIsApiAtLeast18) {
            size = internalStatFs.getTotalBytes();
        } else {
            size = (long) internalStatFs.getBlockCount() * (long) internalStatFs.getBlockSize();
        }

        return Utils.getFormattedSize(size);

    }

    // Returns the free size of internal storage
    @SuppressWarnings("deprecation")
    @TargetApi(Build.VERSION_CODES.JELLY_BEAN_MR2)
    private String getInternalFree() {

        long size;
        StatFs internalStatFs = new StatFs(Environment.getDataDirectory().getAbsolutePath());

        if (mIsApiAtLeast18) {
            size = internalStatFs.getAvailableBytes();
        } else {
            size = (long) internalStatFs.getAvailableBlocks() * (long) internalStatFs.getBlockSize();
        }

        return Utils.getFormattedSize(size);

    }

    // Returns the total size of external storage
    @SuppressWarnings("deprecation")
    @TargetApi(Build.VERSION_CODES.JELLY_BEAN_MR2)
    private String getExternalTotal() {

        long size;
        StatFs extStorageStatFs;
        String extStoragePath = getExternalStoragePath();

        if (extStoragePath == null || !(new File(extStoragePath).exists())) {
            return getString(R.string.sto_sub_item_ext_storage_not_available);
        }

        extStorageStatFs = new StatFs(new File(extStoragePath).getAbsolutePath());

        if (mIsApiAtLeast18) {
            size = extStorageStatFs.getTotalBytes();
        } else {
            size = (long) extStorageStatFs.getBlockCount() * (long) extStorageStatFs.getBlockSize();
        }

        return Utils.getFormattedSize(size);

    } // end method getExternalStorage

    // Returns the free size of external storage
    @SuppressWarnings("deprecation")
    @TargetApi(Build.VERSION_CODES.JELLY_BEAN_MR2)
    private String getExternalFree() {

        long size;
        StatFs extStorageStatFs;
        String extStoragePath = getExternalStoragePath();

        if (extStoragePath == null || !(new File(extStoragePath).exists())) {
            return getString(R.string.sto_sub_item_ext_storage_not_available);
        }

        extStorageStatFs = new StatFs(new File(extStoragePath).getAbsolutePath());

        if (mIsApiAtLeast18) {
            size = extStorageStatFs.getAvailableBytes();
        } else {
            size = (long) extStorageStatFs.getAvailableBlocks() * (long) extStorageStatFs.getBlockSize();
        }

        return Utils.getFormattedSize(size);

    }

    private String getExternalStoragePath() {

        if (!Environment.isExternalStorageEmulated()
                && Environment.getExternalStorageState().equalsIgnoreCase(Environment.MEDIA_MOUNTED)) {
            return Environment.getExternalStorageDirectory().getAbsolutePath();
        } else {
            return System.getenv("SECONDARY_STORAGE");
        }

    }

} // end class StorageFragment