1 /* 2 * Copyright (C) 2016 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file 5 * except in compliance with the License. You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software distributed under the 10 * License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 11 * KIND, either express or implied. See the License for the specific language governing 12 * permissions and limitations under the License. 13 */ 14 15 package com.android.settings.datausage; 16 17 import android.content.Context; 18 import android.os.AsyncTask; 19 import android.support.v7.preference.Preference; 20 import android.support.v7.preference.PreferenceViewHolder; 21 import android.text.format.Formatter; 22 import android.view.View; 23 import android.widget.ProgressBar; 24 import com.android.settingslib.AppItem; 25 import com.android.settingslib.net.UidDetail; 26 import com.android.settingslib.net.UidDetailProvider; 27 28 import static com.android.internal.util.Preconditions.checkNotNull; 29 30 public class AppDataUsagePreference extends Preference { 31 32 private final AppItem mItem; 33 private final int mPercent; 34 35 public AppDataUsagePreference(Context context, AppItem item, int percent, 36 UidDetailProvider provider) { 37 super(context); 38 mItem = item; 39 mPercent = percent; 40 setLayoutResource(com.android.settings.R.layout.data_usage_item); 41 setWidgetLayoutResource(com.android.settings.R.layout.widget_progress_bar); 42 if (item.restricted && item.total <= 0) { 43 setSummary(com.android.settings.R.string.data_usage_app_restricted); 44 } else { 45 setSummary(Formatter.formatFileSize(context, item.total)); 46 } 47 48 // kick off async load of app details 49 UidDetailTask.bindView(provider, item, this); 50 } 51 52 @Override 53 public void onBindViewHolder(PreferenceViewHolder holder) { 54 super.onBindViewHolder(holder); 55 56 final ProgressBar progress = (ProgressBar) holder.findViewById( 57 android.R.id.progress); 58 59 if (mItem.restricted && mItem.total <= 0) { 60 progress.setVisibility(View.GONE); 61 } else { 62 progress.setVisibility(View.VISIBLE); 63 } 64 progress.setProgress(mPercent); 65 } 66 67 public AppItem getItem() { 68 return mItem; 69 } 70 71 /** 72 * Background task that loads {@link UidDetail}, binding to 73 * {@link DataUsageAdapter} row item when finished. 74 */ 75 private static class UidDetailTask extends AsyncTask<Void, Void, UidDetail> { 76 private final UidDetailProvider mProvider; 77 private final AppItem mItem; 78 private final AppDataUsagePreference mTarget; 79 80 private UidDetailTask(UidDetailProvider provider, AppItem item, 81 AppDataUsagePreference target) { 82 mProvider = checkNotNull(provider); 83 mItem = checkNotNull(item); 84 mTarget = checkNotNull(target); 85 } 86 87 public static void bindView(UidDetailProvider provider, AppItem item, 88 AppDataUsagePreference target) { 89 final UidDetail cachedDetail = provider.getUidDetail(item.key, false); 90 if (cachedDetail != null) { 91 bindView(cachedDetail, target); 92 } else { 93 new UidDetailTask(provider, item, target).executeOnExecutor( 94 AsyncTask.THREAD_POOL_EXECUTOR); 95 } 96 } 97 98 private static void bindView(UidDetail detail, Preference target) { 99 if (detail != null) { 100 target.setIcon(detail.icon); 101 target.setTitle(detail.label); 102 } else { 103 target.setIcon(null); 104 target.setTitle(null); 105 } 106 } 107 108 @Override 109 protected void onPreExecute() { 110 bindView(null, mTarget); 111 } 112 113 @Override 114 protected UidDetail doInBackground(Void... params) { 115 return mProvider.getUidDetail(mItem.key, true); 116 } 117 118 @Override 119 protected void onPostExecute(UidDetail result) { 120 bindView(result, mTarget); 121 } 122 } 123 } 124