| /* |
| * Copyright (C) 2021 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.car.settings.datausage; |
| |
| import android.content.Context; |
| import android.net.NetworkPolicyManager; |
| import android.net.NetworkTemplate; |
| import android.os.Bundle; |
| import android.telephony.SubscriptionManager; |
| import android.telephony.TelephonyManager; |
| |
| import androidx.annotation.StringRes; |
| import androidx.annotation.VisibleForTesting; |
| import androidx.annotation.XmlRes; |
| |
| import com.android.car.settings.R; |
| import com.android.car.settings.common.SettingsFragment; |
| import com.android.car.ui.toolbar.MenuItem; |
| import com.android.settingslib.NetworkPolicyEditor; |
| |
| import java.util.Collections; |
| import java.util.List; |
| |
| /** Screen used to pick the data usage warning threshold bytes. */ |
| public abstract class DataUsageSetThresholdBaseFragment extends SettingsFragment { |
| |
| @VisibleForTesting |
| static final long MIB_IN_BYTES = 1024 * 1024; |
| @VisibleForTesting |
| static final long GIB_IN_BYTES = MIB_IN_BYTES * 1024; |
| @VisibleForTesting |
| static final long MAX_DATA_LIMIT_BYTES = 50000 * GIB_IN_BYTES; |
| @VisibleForTesting |
| static final float MB_GB_SUFFIX_THRESHOLD = 1.5f; |
| |
| @VisibleForTesting |
| DataUsageUnitPreferenceController mDataWarningUnitsPreferenceController; |
| @VisibleForTesting |
| DataUsageEditTextPreferenceController mDataUsageEditTextPreferenceController; |
| @VisibleForTesting |
| NetworkPolicyEditor mPolicyEditor; |
| @VisibleForTesting |
| NetworkTemplate mNetworkTemplate; |
| |
| private MenuItem mSaveButton; |
| private TelephonyManager mTelephonyManager; |
| private SubscriptionManager mSubscriptionManager; |
| |
| @Override |
| @XmlRes |
| protected int getPreferenceScreenResId() { |
| return R.xml.data_usage_set_threshold_fragment; |
| } |
| |
| @Override |
| protected List<MenuItem> getToolbarMenuItems() { |
| return Collections.singletonList(mSaveButton); |
| } |
| |
| @Override |
| public void onAttach(Context context) { |
| super.onAttach(context); |
| |
| if (mPolicyEditor == null) { |
| mPolicyEditor = new NetworkPolicyEditor(NetworkPolicyManager.from(context)); |
| |
| // Loads the current policies to the policy editor cache. |
| mPolicyEditor.read(); |
| } |
| mNetworkTemplate = getArguments().getParcelable( |
| NetworkPolicyManager.EXTRA_NETWORK_TEMPLATE); |
| if (mNetworkTemplate == null) { |
| mTelephonyManager = context.getSystemService(TelephonyManager.class); |
| mSubscriptionManager = context.getSystemService(SubscriptionManager.class); |
| mNetworkTemplate = DataUsageUtils.getMobileNetworkTemplate(mTelephonyManager, |
| DataUsageUtils.getDefaultSubscriptionId(mSubscriptionManager)); |
| } |
| |
| mSaveButton = new MenuItem.Builder(context) |
| .setTitle(R.string.data_usage_warning_save_title) |
| .setOnClickListener(i -> { |
| onSaveClicked(); |
| }) |
| .build(); |
| |
| mDataUsageEditTextPreferenceController = use( |
| DataUsageEditTextPreferenceController.class, |
| R.string.pk_data_usage_edit_text); |
| mDataWarningUnitsPreferenceController = use(DataUsageUnitPreferenceController.class, |
| R.string.pk_data_usage_radio_group); |
| |
| long currentWarningBytes = getInitialBytes(); |
| String bytesText; |
| if (currentWarningBytes > MB_GB_SUFFIX_THRESHOLD * GIB_IN_BYTES) { |
| mDataWarningUnitsPreferenceController.setDefaultSelection(/* isGb= */ true); |
| bytesText = formatText(currentWarningBytes / (float) GIB_IN_BYTES); |
| } else { |
| mDataWarningUnitsPreferenceController.setDefaultSelection(/* isGb= */ false); |
| bytesText = formatText(currentWarningBytes / (float) MIB_IN_BYTES); |
| } |
| |
| mDataUsageEditTextPreferenceController.setDefaultText(bytesText); |
| } |
| |
| @Override |
| public void onCreate(Bundle savedInstanceState) { |
| super.onCreate(savedInstanceState); |
| |
| getPreferenceScreen().setTitle(getTitleResId()); |
| } |
| |
| @VisibleForTesting |
| void onSaveClicked() { |
| onSave(getCurrentThreshold()); |
| goBack(); |
| } |
| |
| @VisibleForTesting |
| long getCurrentThreshold() { |
| String bytesString = mDataUsageEditTextPreferenceController.getText(); |
| if (bytesString.isEmpty() || bytesString.equals(".")) { |
| bytesString = "0"; |
| } |
| |
| long bytes = (long) (Float.parseFloat(bytesString) |
| * (mDataWarningUnitsPreferenceController.isGbSelected() |
| ? GIB_IN_BYTES : MIB_IN_BYTES)); |
| |
| // To fix the overflow problem. |
| return Math.min(MAX_DATA_LIMIT_BYTES, bytes); |
| } |
| |
| private String formatText(float v) { |
| v = Math.round(v * 100) / 100f; |
| return String.valueOf(v); |
| } |
| |
| /** |
| * Callback when save button is clicked |
| * |
| * @param threshold number of bytes set |
| */ |
| @VisibleForTesting |
| abstract void onSave(long threshold); |
| |
| /** Returns the screen title res id */ |
| @StringRes |
| protected abstract int getTitleResId(); |
| |
| /** Returns the initial bytes to be displayed */ |
| protected abstract long getInitialBytes(); |
| } |