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      1 /*
      2  * Copyright (C) 2011 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.support.v7.preference.Preference;
     21 import android.support.v7.preference.PreferenceViewHolder;
     22 import android.text.format.Formatter;
     23 import android.view.View;
     24 import android.widget.ProgressBar;
     25 
     26 import com.android.settings.R;
     27 
     28 public class StorageItemPreference extends Preference {
     29     public int userHandle;
     30 
     31     private ProgressBar progressBar;
     32     private static final int PROGRESS_MAX = 100;
     33     private int progress = -1;
     34 
     35     public StorageItemPreference(Context context) {
     36         super(context);
     37         setLayoutResource(R.layout.storage_item);
     38     }
     39 
     40     public void setStorageSize(long size, long total) {
     41         setSummary(size == 0
     42                 ? String.valueOf(0)
     43                 : Formatter.formatFileSize(getContext(), size));
     44         if (total == 0) {
     45             progress = 0;
     46         } else {
     47             progress = (int)(size * PROGRESS_MAX / total);
     48         }
     49         updateProgressBar();
     50     }
     51 
     52     protected void updateProgressBar() {
     53         if (progressBar == null)
     54             return;
     55 
     56         if (progress == -1) {
     57             progressBar.setVisibility(View.GONE);
     58             return;
     59         }
     60 
     61         progressBar.setVisibility(View.VISIBLE);
     62         progressBar.setMax(PROGRESS_MAX);
     63         progressBar.setProgress(progress);
     64     }
     65 
     66     @Override
     67     public void onBindViewHolder(PreferenceViewHolder view) {
     68         progressBar = (ProgressBar) view.findViewById(android.R.id.progress);
     69         updateProgressBar();
     70         super.onBindViewHolder(view);
     71     }
     72 }
     73