Home | History | Annotate | Download | only in deviceinfo 
      1 /*
      2  * Copyright (C) 2015 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 package com.android.settings.deviceinfo;
     18 
     19 import android.content.Context;
     20 import android.content.res.ColorStateList;
     21 import android.graphics.Color;
     22 import android.graphics.drawable.Drawable;
     23 import android.os.storage.StorageManager;
     24 import android.os.storage.VolumeInfo;
     25 import android.preference.Preference;
     26 import android.text.format.Formatter;
     27 import android.view.View;
     28 import android.view.View.OnClickListener;
     29 import android.widget.ImageView;
     30 import android.widget.ProgressBar;
     31 
     32 import com.android.settings.R;
     33 import com.android.settings.deviceinfo.StorageSettings.UnmountTask;
     34 
     35 import java.io.File;
     36 
     37 /**
     38  * Preference line representing a single {@link VolumeInfo}, possibly including
     39  * quick actions like unmounting.
     40  */
     41 public class StorageVolumePreference extends Preference {
     42     private final StorageManager mStorageManager;
     43     private final VolumeInfo mVolume;
     44 
     45     private int mColor;
     46     private int mUsedPercent = -1;
     47 
     48     public StorageVolumePreference(Context context, VolumeInfo volume, int color) {
     49         super(context);
     50 
     51         mStorageManager = context.getSystemService(StorageManager.class);
     52         mVolume = volume;
     53         mColor = color;
     54 
     55         setLayoutResource(R.layout.storage_volume);
     56 
     57         setKey(volume.getId());
     58         setTitle(mStorageManager.getBestVolumeDescription(volume));
     59 
     60         Drawable icon;
     61         if (VolumeInfo.ID_PRIVATE_INTERNAL.equals(volume.getId())) {
     62             icon = context.getDrawable(R.drawable.ic_settings_storage);
     63         } else {
     64             icon = context.getDrawable(R.drawable.ic_sim_sd);
     65         }
     66 
     67         if (volume.isMountedReadable()) {
     68             // TODO: move statfs() to background thread
     69             final File path = volume.getPath();
     70             final long freeBytes = path.getFreeSpace();
     71             final long totalBytes = path.getTotalSpace();
     72             final long usedBytes = totalBytes - freeBytes;
     73 
     74             final String used = Formatter.formatFileSize(context, usedBytes);
     75             final String total = Formatter.formatFileSize(context, totalBytes);
     76             setSummary(context.getString(R.string.storage_volume_summary, used, total));
     77             mUsedPercent = (int) ((usedBytes * 100) / totalBytes);
     78 
     79             if (freeBytes < mStorageManager.getStorageLowBytes(path)) {
     80                 mColor = StorageSettings.COLOR_WARNING;
     81                 icon = context.getDrawable(R.drawable.ic_warning_24dp);
     82             }
     83 
     84         } else {
     85             setSummary(volume.getStateDescription());
     86             mUsedPercent = -1;
     87         }
     88 
     89         icon.mutate();
     90         icon.setTint(mColor);
     91         setIcon(icon);
     92 
     93         if (volume.getType() == VolumeInfo.TYPE_PUBLIC
     94                 && volume.isMountedReadable()) {
     95             setWidgetLayoutResource(R.layout.preference_storage_action);
     96         }
     97     }
     98 
     99     @Override
    100     protected void onBindView(View view) {
    101         final ImageView unmount = (ImageView) view.findViewById(R.id.unmount);
    102         if (unmount != null) {
    103             unmount.setImageTintList(ColorStateList.valueOf(Color.parseColor("#8a000000")));
    104             unmount.setOnClickListener(mUnmountListener);
    105         }
    106 
    107         final ProgressBar progress = (ProgressBar) view.findViewById(android.R.id.progress);
    108         if (mVolume.getType() == VolumeInfo.TYPE_PRIVATE && mUsedPercent != -1) {
    109             progress.setVisibility(View.VISIBLE);
    110             progress.setProgress(mUsedPercent);
    111             progress.setProgressTintList(ColorStateList.valueOf(mColor));
    112         } else {
    113             progress.setVisibility(View.GONE);
    114         }
    115 
    116         super.onBindView(view);
    117     }
    118 
    119     private final View.OnClickListener mUnmountListener = new OnClickListener() {
    120         @Override
    121         public void onClick(View v) {
    122             new UnmountTask(getContext(), mVolume).execute();
    123         }
    124     };
    125 }
    126