| /* |
| * Copyright (C) 2017 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.android.settings.development; |
| |
| import android.content.Context; |
| import android.text.format.Formatter; |
| |
| import androidx.annotation.VisibleForTesting; |
| import androidx.preference.Preference; |
| import androidx.preference.PreferenceScreen; |
| |
| import com.android.settings.R; |
| import com.android.settings.applications.ProcStatsData; |
| import com.android.settings.applications.ProcessStatsBase; |
| import com.android.settings.core.PreferenceControllerMixin; |
| import com.android.settingslib.development.DeveloperOptionsPreferenceController; |
| import com.android.settingslib.utils.ThreadUtils; |
| |
| public class MemoryUsagePreferenceController extends DeveloperOptionsPreferenceController implements |
| PreferenceControllerMixin { |
| |
| private static final String MEMORY_USAGE_KEY = "memory"; |
| |
| private ProcStatsData mProcStatsData; |
| |
| public MemoryUsagePreferenceController(Context context) { |
| super(context); |
| } |
| |
| @Override |
| public String getPreferenceKey() { |
| return MEMORY_USAGE_KEY; |
| } |
| |
| @Override |
| public void displayPreference(PreferenceScreen screen) { |
| super.displayPreference(screen); |
| |
| mProcStatsData = getProcStatsData(); |
| setDuration(); |
| } |
| |
| @Override |
| public void updateState(Preference preference) { |
| // This is posted on the background thread to speed up fragment launch time for dev options |
| // mProcStasData.refreshStats(true) takes ~20ms to run. |
| ThreadUtils.postOnBackgroundThread(() -> { |
| mProcStatsData.refreshStats(true); |
| final ProcStatsData.MemInfo memInfo = mProcStatsData.getMemInfo(); |
| final String usedResult = Formatter.formatShortFileSize(mContext, |
| (long) memInfo.realUsedRam); |
| final String totalResult = Formatter.formatShortFileSize(mContext, |
| (long) memInfo.realTotalRam); |
| ThreadUtils.postOnMainThread( |
| () -> mPreference.setSummary(mContext.getString(R.string.memory_summary, |
| usedResult, totalResult))); |
| }); |
| } |
| |
| @VisibleForTesting |
| void setDuration() { |
| mProcStatsData.setDuration(ProcessStatsBase.sDurations[0] /* 3 hours */); |
| } |
| |
| @VisibleForTesting |
| ProcStatsData getProcStatsData() { |
| return new ProcStatsData(mContext, false); |
| } |
| } |