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/*
* Copyright (C) 2020 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.emergency.action;
import static android.Manifest.permission.READ_PHONE_STATE;
import static android.telecom.TelecomManager.EXTRA_CALL_SOURCE;
import static android.telephony.emergency.EmergencyNumber.EMERGENCY_SERVICE_CATEGORY_POLICE;
import android.content.Context;
import android.content.pm.PackageManager;
import android.net.Uri;
import android.os.Bundle;
import android.os.CountDownTimer;
import android.support.v4.app.Fragment;
import android.telecom.PhoneAccount;
import android.telecom.TelecomManager;
import android.telephony.SubscriptionManager;
import android.telephony.TelephonyManager;
import android.telephony.emergency.EmergencyNumber;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;
import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import com.android.emergency.R;
import com.android.emergency.widgets.countdown.CountDownAnimationView;
import java.time.Duration;
import java.util.List;
import java.util.Map;
public class EmergencyActionFragment extends Fragment {
private static final String TAG = "EmergencyActionFrag";
private static final String STATE_MILLIS_LEFT = "STATE_MILLIS_LEFT";
private TelephonyManager mTelephonyManager;
private TelecomManager mTelecomManager;
private SubscriptionManager mSubscriptionManager;
private CountDownTimer mCountDownTimer;
private long mCountDownMillisLeft;
@Override
public void onAttach(Context context) {
super.onAttach(context);
mTelephonyManager = context.getSystemService(TelephonyManager.class);
mSubscriptionManager = context.getSystemService(SubscriptionManager.class);
mTelecomManager = context.getSystemService(TelecomManager.class);
}
@Override
public View onCreateView(@NonNull LayoutInflater inflater,
@Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.emergency_action_fragment, container, false);
TextView subtitleView = view.findViewById(R.id.subtitle);
subtitleView.setText(getString(R.string.emergency_action_subtitle, getEmergencyNumber()));
if (savedInstanceState != null) {
mCountDownMillisLeft = savedInstanceState.getLong(STATE_MILLIS_LEFT);
} else {
mCountDownMillisLeft =
getResources().getInteger(R.integer.emergency_action_count_down_millis);
}
return view;
}
@Override
public void onStart() {
super.onStart();
startTimer();
}
@Override
public void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
outState.putLong(STATE_MILLIS_LEFT, mCountDownMillisLeft);
}
@Override
public void onStop() {
super.onStop();
if (mCountDownTimer != null) {
CountDownAnimationView countDownAnimationView =
getView().findViewById(R.id.count_down_view);
countDownAnimationView.stop();
mCountDownTimer.cancel();
}
}
private String getEmergencyNumber() {
if (getContext().checkSelfPermission(READ_PHONE_STATE)
!= PackageManager.PERMISSION_GRANTED) {
Log.w(TAG, "READ_PHONE_STATE permission is not granted.");
return getContext().getString(R.string.fallback_emergency_number);
}
Map<Integer, List<EmergencyNumber>> emergencyNumberListMap =
mTelephonyManager.getEmergencyNumberList(EMERGENCY_SERVICE_CATEGORY_POLICE);
if (!emergencyNumberListMap.isEmpty()) {
List<EmergencyNumber> emergencyNumberList =
emergencyNumberListMap.get(
mSubscriptionManager.getDefaultSubscriptionId());
if (!emergencyNumberList.isEmpty()) {
String emergencyNumber = emergencyNumberList.get(0).getNumber();
Log.i(TAG, "Emergency number from TelephonyManager: " + emergencyNumber);
return emergencyNumber;
}
}
Log.w(TAG, "Unable to get emergency number from TelephonyManager.");
return getContext().getString(R.string.fallback_emergency_number);
}
private void startTimer() {
CountDownAnimationView countDownAnimationView =
getView().findViewById(R.id.count_down_view);
if (mCountDownTimer != null) {
countDownAnimationView.stop();
mCountDownTimer.cancel();
}
mCountDownTimer =
new CountDownTimer(
mCountDownMillisLeft,
getResources().getInteger(R.integer.emergency_action_count_down_interval)) {
@Override
public void onTick(long millisUntilFinished) {
CountDownAnimationView countDownAnimationView =
getView().findViewById(R.id.count_down_view);
if (countDownAnimationView != null) {
countDownAnimationView.setCountDownLeft(
Duration.ofMillis(millisUntilFinished));
}
mCountDownMillisLeft = millisUntilFinished;
}
@Override
public void onFinish() {
startEmergencyCall();
getActivity().finish();
}
};
mCountDownTimer.start();
countDownAnimationView.start(Duration.ofMillis(mCountDownMillisLeft));
countDownAnimationView.showCountDown();
}
private void startEmergencyCall() {
Bundle extras = new Bundle();
extras.putBoolean(TelecomManager.EXTRA_IS_USER_INTENT_EMERGENCY_CALL, true);
extras.putInt(EXTRA_CALL_SOURCE, TelecomManager.CALL_SOURCE_EMERGENCY_SHORTCUT);
mTelecomManager.placeCall(
Uri.fromParts(PhoneAccount.SCHEME_TEL, getEmergencyNumber(), null), extras);
}
}
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