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.app.usage.StorageStatsManager; 20 import android.content.Context; 21 import android.content.res.ColorStateList; 22 import android.graphics.Color; 23 import android.graphics.drawable.Drawable; 24 import android.os.storage.StorageManager; 25 import android.os.storage.VolumeInfo; 26 import android.support.v7.preference.Preference; 27 import android.support.v7.preference.PreferenceViewHolder; 28 import android.text.format.Formatter; 29 import android.util.Log; 30 import android.view.View; 31 import android.view.View.OnClickListener; 32 import android.widget.ImageView; 33 import android.widget.ProgressBar; 34 35 import com.android.settings.R; 36 import com.android.settings.deviceinfo.StorageSettings.UnmountTask; 37 import com.android.settingslib.Utils; 38 39 import java.io.IOException; 40 import java.io.File; 41 42 /** 43 * Preference line representing a single {@link VolumeInfo}, possibly including 44 * quick actions like unmounting. 45 */ 46 public class StorageVolumePreference extends Preference { 47 private static final String TAG = StorageVolumePreference.class.getSimpleName(); 48 49 private final StorageManager mStorageManager; 50 private final VolumeInfo mVolume; 51 52 private int mColor; 53 private int mUsedPercent = -1; 54 55 // TODO: ideally, VolumeInfo should have a total physical size. StorageVolumePreference(Context context, VolumeInfo volume, int color, long totalBytes)56 public StorageVolumePreference(Context context, VolumeInfo volume, int color, long totalBytes) { 57 super(context); 58 59 mStorageManager = context.getSystemService(StorageManager.class); 60 mVolume = volume; 61 mColor = color; 62 63 setLayoutResource(R.layout.storage_volume); 64 65 setKey(volume.getId()); 66 setTitle(mStorageManager.getBestVolumeDescription(volume)); 67 68 Drawable icon; 69 if (VolumeInfo.ID_PRIVATE_INTERNAL.equals(volume.getId())) { 70 icon = context.getDrawable(R.drawable.ic_storage); 71 } else { 72 icon = context.getDrawable(R.drawable.ic_sim_sd); 73 } 74 75 if (volume.isMountedReadable()) { 76 // TODO: move statfs() to background thread 77 final File path = volume.getPath(); 78 79 long freeBytes = 0; 80 long usedBytes = 0; 81 if (volume.getType() == VolumeInfo.TYPE_PRIVATE) { 82 final StorageStatsManager stats = 83 context.getSystemService(StorageStatsManager.class); 84 try { 85 totalBytes = stats.getTotalBytes(volume.getFsUuid()); 86 freeBytes = stats.getFreeBytes(volume.getFsUuid()); 87 usedBytes = totalBytes - freeBytes; 88 } catch (IOException e) { 89 Log.w(TAG, e); 90 } 91 } else { 92 // StorageStatsManager can only query private volumes. 93 // Default to previous storage calculation for public volumes. 94 if (totalBytes <= 0) { 95 totalBytes = path.getTotalSpace(); 96 } 97 freeBytes = path.getFreeSpace(); 98 usedBytes = totalBytes - freeBytes; 99 } 100 101 final String used = Formatter.formatFileSize(context, usedBytes); 102 final String total = Formatter.formatFileSize(context, totalBytes); 103 setSummary(context.getString(R.string.storage_volume_summary, used, total)); 104 if (totalBytes > 0) { 105 mUsedPercent = (int) ((usedBytes * 100) / totalBytes); 106 } 107 108 if (freeBytes < mStorageManager.getStorageLowBytes(path)) { 109 mColor = Utils.getColorAttr(context, android.R.attr.colorError); 110 icon = context.getDrawable(R.drawable.ic_warning_24dp); 111 } 112 113 } else { 114 setSummary(volume.getStateDescription()); 115 mUsedPercent = -1; 116 } 117 118 icon.mutate(); 119 icon.setTint(mColor); 120 setIcon(icon); 121 122 if (volume.getType() == VolumeInfo.TYPE_PUBLIC 123 && volume.isMountedReadable()) { 124 setWidgetLayoutResource(R.layout.preference_storage_action); 125 } 126 } 127 128 @Override onBindViewHolder(PreferenceViewHolder view)129 public void onBindViewHolder(PreferenceViewHolder view) { 130 final ImageView unmount = (ImageView) view.findViewById(R.id.unmount); 131 if (unmount != null) { 132 unmount.setImageTintList(ColorStateList.valueOf(Color.parseColor("#8a000000"))); 133 unmount.setOnClickListener(mUnmountListener); 134 } 135 136 final ProgressBar progress = (ProgressBar) view.findViewById(android.R.id.progress); 137 if (mVolume.getType() == VolumeInfo.TYPE_PRIVATE && mUsedPercent != -1) { 138 progress.setVisibility(View.VISIBLE); 139 progress.setProgress(mUsedPercent); 140 progress.setProgressTintList(ColorStateList.valueOf(mColor)); 141 } else { 142 progress.setVisibility(View.GONE); 143 } 144 145 super.onBindViewHolder(view); 146 } 147 148 private final View.OnClickListener mUnmountListener = new OnClickListener() { 149 @Override 150 public void onClick(View v) { 151 new UnmountTask(getContext(), mVolume).execute(); 152 } 153 }; 154 } 155